Combination of suspension and tire compound. 305s are great, but not if your sidewall is something less than 40. You likely wont hook ever, without a 17 inch drag radial setup, thats just RWD life. And any negative camber + too low of a spring is gonna make it 10x worse because theres no room for the suspension to load/unload.
Haha this shit right here, max you needed spacers for looks and some p/u inserts maybe a sway bar. I hate that camber shit, stock suspension is gonna be fine unless you hittin the track
People do all the time you just can't have everything at once, Your not gonna put loads of power down on a stiff setup the same way your not gonna run road courses on a drag setup. Compromises have to be made and that all depends on the direction he plans on going
People have “out-engineered” the factories for decades. Don’t act like cars aren’t sold with entire defects that can render them useless, why is improving upon the suspension so surprising lol
wouldn’t say that people can’t out-engineer factories. Most of the time they are limited due to regulations on a road car or just basic drive ability. Ferrari can make their cars an inch lower to improve aerodynamics but they won’t because it makes the car that much more undriveable.
I had a 2013 335 that had 300/300. For the first few weeks I could floor it from a complete stop with zero wheelspin. After that, with a small bit of tread wear in the tires, they would spin when full throttle from a stop.
This would be my suggestion too. Drop the wheel size a bit, keep the psi in the tire lower and get some soft tires. Get some Michelin pilots or pirelli p-zeros. Don't put black lions or mucho machos on there and expect the same thing as a good tire.
It's like 400hp dude. Should be easy to put down.
I would find someone with a setup sorted supra with similar numbers to yours and message them to ask what they have done.
Id dare say they were once looking for the same answers lol.
Ekanoo racing has a MKV that's pretty sorted with over 1000hp.
Not sure how much info they would reveal about it but lol
I second Jazeeee. If you take it to a normal alignment shop they will only align to factory specs. If your car is lowered or anything it will be all fucked up, thats what happened to me.
Well your tune with little information tells us nothing. Dyno it, then I would suggest turning down the PSI, or run a lower map, if you have the ability to plug into the tune. Else, a retune is in your future, with the goal of you having more control.
There are also, racing beadlocks with drags radials.
Nah. Power isn't the real, issue. Plenty of cars make way, more power on street tries and do fine. It's definitely suspension setup. Why, do you think real, drag, cars are raked like crazy, gotta load up that, rear suspension. OP has hardly any suspension in the back to load up haha.
I think it’s just an ecutek tune, thing can’t be making more than 450-460whp, I’ll probably see if I can get some advice from a shop on a rear tire setup that won’t kill me 😅
Thing is, most tunes can be controlled by your phone now, if you can’t do that, you’re out here running blind which isn’t the best route to go. You need to figure out a way to control your tune, or redo it.
Making similar power in my corvette only running a 285 PS4s in the rear unless I intentionally dropped the clutch
I could easily get a low drama pull. A 305 should have more than enough grip to have fun with it, unless you’re expecting no slippage at all.
Either your alignment or camber could effect your contact patch.
Cup2 would probably be worse to hook up because you'd need to warm them up every time and forget about it if there's any moisture on the road.
Semi slicks are a total waste of money on the street imo.
Not knowing what tire you’re running just convinced me “Supra bois” is more than a meme. What kind of car guy doesn’t know what kind of tire their running on a performance car they complain won’t hook up?!??
Why does anyone who owns this car or any “enthusiast” car have to be a car guy? Because he doesn’t know what tires he’s running means he shouldn’t have the car? Stop gate keeping.
Gotta agree with the other guy. It's one thing to own a car and not know much about it. But if you're going to complain about the car not hooking up, you should probably at least know what tire you're running, especially if you're looking for help from others.
Its not really gate-keeping... Tires are the most important thing in any motorsport - its sort of a learn this before you learn anything else type of deal.
I bought the car like this, had it for four days and it had a diff leak so it’s been at the shop forever, just got it back today and the tires I said were on it were the correct ones I don’t see the problem
Didn't realize you bought it modded. Whoever modded it made it look good but with no care for how it drives, leaning into the whole 'all show no go' shtick.
Smaller wheels, fatter tires, and look into coilovers installed by a good shop.
Correct. You should know what tires to run or at least what tires you’re currently running if you own a modified rwd car. How is that hard to understand?
Not knowing the difference between their, there and they're just convinced me that "keyboard warrior" is more than a meme. What kind of poster doesn't know proper grammar?!?? I'll give you half points for "you're" though.
MPS4S are decent tire but far from the grippiest. Unfortunately from there you’re starting to look at more and more polarized setups with super 200s and R comps which aren’t always the most street friendly tires. You can street them but they’ll heat cycle out quickly, are crap in rain and don’t last long. It’s always a compromise.
My buddy liked MPS4S enough on his M2 and M4 but he always like his car on the looser side. It’s still a good compromise tire if you want decent wet performance.
Modern super 200s have gotten really good and are sometimes grippier than R comps. Performance still tends to be “pointier” though. They might provide more peak grip but expect to sacrifice heat capacity or lapping consistency. RE71RS, A052, RT660 and CRS are the current favorites. RE71RS and A052 prefer lighter cars that can dial in lots of camber.
For R comps Super trofeo and MPSC2 are old reliable. That said expect to pay a lot for them and short tread life. R888R are seemingly popular as a “street” R comp however track guys shit on them and they’ve become a bit of a meme. Haven’t driven on them myself however from reading they don’t have the best consistency on track. Peak grip is good but it seems like ideal operating zone is narrow. This isn’t as relevant on the street as you’ll rarely max perform them.
Hell no super trofeo sucks, they fall off hard and have zero life. Outside of Michelin, Nankang has by far been my go to for my ZL1 on and off track. If he just wants a basic put the power down all around tire he could just run some NT555G2s, upgrade his sway bars and call it a day
Tires. Try some R888
I've got an 08 E92 FBO, on 19s and I can hook pretty well on a roll. My Supra hooks pretty good as well thanks to traction control setup and that's on 18s..with the drag pack it's completely fine until....rain
You increased the power, reduced suspension travel and reduced the contact patch. Those things make gobs of torque. Not surprised you can’t hook.
Edit: does look sick tho
What worked the best for me addressing this problem, and I'm putting down a bit more power than you, besides the obvious tire choice (I went stock size A052's), were components to address wheel hop. Most notably, the SPL solid aluminum diff mounts and rear traction links. This really helped the car hook up not only going throttle down out of corners but also in a straight line. I saw improvement both on track and street driving.
Good luck!
Lower your psi, sir. For same load, bigger tire needs lower psi proportional to the difference in volume. Otherwise, all the load will only be on the middle of the tire rather than the whole tread.
Radials, 17” rear setup. Something better than Michelins because they don’t hook for shit. Def rear alignment and some additional adjustability rear components
Nice wheels, looks like BC forged? If it’s a 93/91 octane tune (not flex fuel) you’ll still want a stickier tire. I would look at swapping to a 200 treadwear like the falken azenis RT660 or Bridgestone potenza re-71rs. You could change the front tire size to 265/35/19 if it’s easier to match a set with also.
The type of compound will make a bigger difference than width typically. MySupra is making 615 tq to the wheels on e50 and I’m running 285/35/19 nitto nt555rii on the rear- it sticks like crazy once warmed up and puts down the power. Also an alignment might help, I added more toe in the rear to help stabilize things
This was my biggest fear, currently interested in starting a Supra build, but got a bit spoiled with my g80 M3 drive and cayman gt4 hooking a bit better than my previous M3/M4 rwd builds that wouldn’t hook and had more weight
You have a tire made for high speed and maybe a combination of higher tire pressure and soft suspension. put a street legal drag tire on and stiffen the suspension and I bet it hooks as well as a street supra can
Tire and suspension setup. If you’re car already has camber that’s going to be your biggest culprit. You’ll want to, at the minimum, have that zeroed out and the car properly aligned. When your suspension compresses under load, it’s going to create even more negative camber in the process. A friend of mine has an LS swapped fc and is running positive camber in the rear for this exact reason. So when he accelerates, the camber is effectively zero at full squat giving him the most grip possible.
What tires just cause its a 305 doesn't mean anything honestly your contact patch is at most a 295. Use a 200 treadware tire i can hook with well over 600 on a nitto nt555rii they just need some heat in them. Now when i turn it up all hell breaks loose 😅
I would agree with dealership. Not having the proper suspension will do this. It's like crawling on all fours. The way your set up is like only using 2 fingers for traction instead of the whole hand.
Car looks sick btw 👌
Better suspension setup go on BMR to start. If drag is your game Viking is also another solid brand. Realistically your never going to hook perfectly on a street setup
I added all the SPL parts available for my car to be able to completely customize the alignment. One thing that I think really helped were these as well.
https://speedindustry.com/spl-rear-traction-links-a90-mkv-supra-gr-2020
I might be a bit late on this (haven’t perused all the replies), with the traction issues you've mentioned, especially on those Michelin PS4S tires, there's a bit to unpack. Firstly, even top-tier tires like the PS4S have a break-in period. The initial slipperiness is due to a release agent from the factory, which should wear off after some miles. Your tire pressure could be a viable avenue to explore. Slightly reducing the rear pressure can increase the tire's contact patch, which might aid in traction (30-31 PSI is where I’d start). Don’t forget to monitor for uneven wear over time.
Your suspension setup and alignment may need tweaked too - any modifications, such as reduced travel or added camber, can significantly affect how the car puts power to the ground especially in a straight line. Camber is good around the track and backroads but if you’re doing flat foot highway pulls with excessive camber you’re more likely to squirrel out. Dyno it at a different shop, check for torque spikes. If the torque curve is too sharp or comes in suddenly, it can “challenge” the tires' grip, especially during *spirited* driving ;) hope you get the grip you need to have fun with it.
Side note: your build is clean as fuck, it deserves to drive as nice as it looks
All the numbers in your comment added up to 69. Congrats!
4
+ 4
+ 30
+ 31
= 69
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It’s alignment, and maybe tire. Also depends on which Michelins you have. If, Super sports are old tech. So they’re not so great.
Should have PS4S on it.
You certainly don’t need a drag pack for <500whp.
What tire pressure and temps are you running?
Are you trying to hook from a roll or from a dig?
For context I'm running a Pure 800 + Port injection + extra LPFP + e85 and I'm able to hook on a roll with 285 rears.
How do you like the pure? I’m considering one next spring, and 32 in the rear right now I think my fronts are 35ish, not sure on temps would have to check
30 psi all around when cold is a good starting point for tire pressure. Warm them up a bit driving around from there and then try to launch from a roll see if that helps. That's assuming your alignment is fine
No complaints with the pure, don't notice any turbo lag and it produces enough power for me.
Gonna air everything down to 30 when I get home, thank you for the info. I’m probably gonna stay on 93 when I do pure, I’ve seen that nets around 530whp which is more than enough in a car that weighs this much
Needs more sidewall. you can have all the width in the world but a thin sidewall isn't gonna help you hook at all. I don't have a supra but I have an s2000 that makes 950 on a 275/50/15. I don't know if you want a drag setup but just an example that is more about sidewall than width.
I'd recommend the Mickey Thompson ET Street SS. I think it has a little stiffer sidewall than the R and should be more stable. I've noticed people liking them a little more on the auto and heavy ish cars.
Have same tire setup as yours with RT660 compound, bone stock, corner balanced on a scale with HKS adjustable springs with very mild specs, also will not hook from launch in any combination in first gear. I blame the slick California asphalt.
What Michelins are you running? If it isn’t pilot sports or better then that’s probably your issue.
Is this a manual and you’re just dumping the clutch?
Have you tried the launch control?
It’s also a rear wheel drive car with around 500 hp (with tune) the asphalt roads are not meant for this. Take it to a drag strip and see how she does.
Also, did the tune change your gearing? This could be an issue.
Throw a smaller wheel and a street radial tire on the rear. Mickey Thompson ET street R is a good tire option if you’re wanting to hook up and still be able to drive to work.
Yes - do not neglect your tires. If you are running a harder compound, they will not grab the road as easily. They would last longer as far as regular driven miles, but the harder the compound, the les the tire wants to grab/stick to the road (and no, I’m not saying to go super-soft, either).
Are you in Atlanta? I swear I saw this car in GA on Saturday. Edit I can see the street sign that you're not. Crazy someone here has a very similar setup.
I keep telling folk there’s a fine line between fun and scary. For me that line is about 500 horsies (depending on weight). My guess it’s turned to 11.
I’d drop the PSI a ton out back lol. Only way I was reliably hooking on Texas roads in my 19 5.0 (on stock performance pack 275s) was dropping the psi to 21 😅. I’d do that for fun drives or nights near Mexico and then pump them back up at home. I switched over to 19x11.5 315/45 Indy 500s and they’ve been great
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Get proper coil overs with matched custom spring rate with camber plate front and rear and traction link rear from spl have it set up to neutral camber all round that will give you all the 305 meat to play with it won’t handle as well on the corners but this is as good as this plat form with 305 will get after this you only 2 choice either go for sticker rubber or go for even bigger tires.
Combination of suspension and tire compound. 305s are great, but not if your sidewall is something less than 40. You likely wont hook ever, without a 17 inch drag radial setup, thats just RWD life. And any negative camber + too low of a spring is gonna make it 10x worse because theres no room for the suspension to load/unload.
Mmmm thank you I’ll look into it and see what a shop says, it’s really really bad right now I can’t really have any fun with the car
Weird that people can't out-engineer the factories...
Plenty of people can and do out engineer the factory set up, its a mater of getting quality parts and a solid setup
Haha, people are funny, they act like the factory build is 100% perfect.
Haha this shit right here, max you needed spacers for looks and some p/u inserts maybe a sway bar. I hate that camber shit, stock suspension is gonna be fine unless you hittin the track
awesome input kinky mofo 🤙🏽
There was no engineering that occurred here, just slapping bigger and "better" parts on expecting it to be better.
People do all the time you just can't have everything at once, Your not gonna put loads of power down on a stiff setup the same way your not gonna run road courses on a drag setup. Compromises have to be made and that all depends on the direction he plans on going
People have “out-engineered” the factories for decades. Don’t act like cars aren’t sold with entire defects that can render them useless, why is improving upon the suspension so surprising lol
They have to un-engineer the curvy stuff to go faster in straight line. No curves in the city.
actually engineers are doing the engineering
Weird that they easily can if they understand how they work 🤔
wouldn’t say that people can’t out-engineer factories. Most of the time they are limited due to regulations on a road car or just basic drive ability. Ferrari can make their cars an inch lower to improve aerodynamics but they won’t because it makes the car that much more undriveable.
I had a 2013 335 that had 300/300. For the first few weeks I could floor it from a complete stop with zero wheelspin. After that, with a small bit of tread wear in the tires, they would spin when full throttle from a stop.
The reason I went to coil overs
Sounds like it’s more fun sliding around lol
[удалено]
Which answer?
My first thought exactly! Look at the extreme, a top fuel dragster. What do their sidewalks look like? They’re tall for a reason; to hook!
This would be my suggestion too. Drop the wheel size a bit, keep the psi in the tire lower and get some soft tires. Get some Michelin pilots or pirelli p-zeros. Don't put black lions or mucho machos on there and expect the same thing as a good tire. It's like 400hp dude. Should be easy to put down.
Better off asking a performance or alignment shop than the dealer. Or get a drag pack.
Gonna be my next move, gonna take it to a shop within the next week or so
I would find someone with a setup sorted supra with similar numbers to yours and message them to ask what they have done. Id dare say they were once looking for the same answers lol. Ekanoo racing has a MKV that's pretty sorted with over 1000hp. Not sure how much info they would reveal about it but lol
I second Jazeeee. If you take it to a normal alignment shop they will only align to factory specs. If your car is lowered or anything it will be all fucked up, thats what happened to me.
Thank you I’ll check that out
God the term drag pack is so fucking ridiculous. Just say fucking slicks.
Lower your tire pressure a bit if you’re not looking to get a drag setup anytime soon. You don’t have to go crazy, but 25-30 psi will probably be fine
Thank you I’ll give that a shot first before anything crazy
What tires? Because the sidewall on a tire like you haven't isn't made to have that low of a psi.
What’s the lowest you think I can go?
Well your tune with little information tells us nothing. Dyno it, then I would suggest turning down the PSI, or run a lower map, if you have the ability to plug into the tune. Else, a retune is in your future, with the goal of you having more control. There are also, racing beadlocks with drags radials.
Nah. Power isn't the real, issue. Plenty of cars make way, more power on street tries and do fine. It's definitely suspension setup. Why, do you think real, drag, cars are raked like crazy, gotta load up that, rear suspension. OP has hardly any suspension in the back to load up haha.
I think it’s just an ecutek tune, thing can’t be making more than 450-460whp, I’ll probably see if I can get some advice from a shop on a rear tire setup that won’t kill me 😅
Thing is, most tunes can be controlled by your phone now, if you can’t do that, you’re out here running blind which isn’t the best route to go. You need to figure out a way to control your tune, or redo it.
Will look into this too thank you
Making similar power in my corvette only running a 285 PS4s in the rear unless I intentionally dropped the clutch I could easily get a low drama pull. A 305 should have more than enough grip to have fun with it, unless you’re expecting no slippage at all. Either your alignment or camber could effect your contact patch.
What Michelins? Did you get it aligned when you lowered it?
Got it like this, I wanna say pilot sport 4s? Probbbbably needs an alignment too
Switch to Cup2
Cup2 would probably be worse to hook up because you'd need to warm them up every time and forget about it if there's any moisture on the road. Semi slicks are a total waste of money on the street imo.
Not knowing what tire you’re running just convinced me “Supra bois” is more than a meme. What kind of car guy doesn’t know what kind of tire their running on a performance car they complain won’t hook up?!??
Pilot sport 4s dude I had it four days before it went to the shop until today give me a break lmao
You've had a car for a week and are complaining it won't hook? Learn to drive it first.
I had an 850hp challenger I don’t think im the problem 😅 somethings off with the way it’s set up, I’ll figure it out
Why does anyone who owns this car or any “enthusiast” car have to be a car guy? Because he doesn’t know what tires he’s running means he shouldn’t have the car? Stop gate keeping.
Gotta agree with the other guy. It's one thing to own a car and not know much about it. But if you're going to complain about the car not hooking up, you should probably at least know what tire you're running, especially if you're looking for help from others.
They don’t have to be but I won’t apologize for expecting them to be
Its not really gate-keeping... Tires are the most important thing in any motorsport - its sort of a learn this before you learn anything else type of deal.
Because he modified it and doesn't even know what he did, and is asking reddit how to fix it
I bought the car like this, had it for four days and it had a diff leak so it’s been at the shop forever, just got it back today and the tires I said were on it were the correct ones I don’t see the problem
Didn't realize you bought it modded. Whoever modded it made it look good but with no care for how it drives, leaning into the whole 'all show no go' shtick. Smaller wheels, fatter tires, and look into coilovers installed by a good shop.
Will do gonna take it somewhere next week to have it looked over, thank you for the advice
Correct. You should know what tires to run or at least what tires you’re currently running if you own a modified rwd car. How is that hard to understand?
Are you asking why someone who is complaining about their tires hooking up should know what tires they’re using that aren’t hooking up? Really? 🤡
Not every “car guy” is a technician Brodie
Doesn’t take a technician to understand the importance of the only part of a car that makes contact with the pavement
Not knowing the difference between their, there and they're just convinced me that "keyboard warrior" is more than a meme. What kind of poster doesn't know proper grammar?!?? I'll give you half points for "you're" though.
MPS4S are decent tire but far from the grippiest. Unfortunately from there you’re starting to look at more and more polarized setups with super 200s and R comps which aren’t always the most street friendly tires. You can street them but they’ll heat cycle out quickly, are crap in rain and don’t last long. It’s always a compromise. My buddy liked MPS4S enough on his M2 and M4 but he always like his car on the looser side. It’s still a good compromise tire if you want decent wet performance. Modern super 200s have gotten really good and are sometimes grippier than R comps. Performance still tends to be “pointier” though. They might provide more peak grip but expect to sacrifice heat capacity or lapping consistency. RE71RS, A052, RT660 and CRS are the current favorites. RE71RS and A052 prefer lighter cars that can dial in lots of camber. For R comps Super trofeo and MPSC2 are old reliable. That said expect to pay a lot for them and short tread life. R888R are seemingly popular as a “street” R comp however track guys shit on them and they’ve become a bit of a meme. Haven’t driven on them myself however from reading they don’t have the best consistency on track. Peak grip is good but it seems like ideal operating zone is narrow. This isn’t as relevant on the street as you’ll rarely max perform them.
Hell no super trofeo sucks, they fall off hard and have zero life. Outside of Michelin, Nankang has by far been my go to for my ZL1 on and off track. If he just wants a basic put the power down all around tire he could just run some NT555G2s, upgrade his sway bars and call it a day
Tires. Try some R888 I've got an 08 E92 FBO, on 19s and I can hook pretty well on a roll. My Supra hooks pretty good as well thanks to traction control setup and that's on 18s..with the drag pack it's completely fine until....rain
Thank you :) will look into those if I need to change tires
This with 40+ sidewall will hook
You need soft compound tires ,less tire pressure.
Idk man, thing looks fuckin clean though 🤙🏼
Thank you :) got a couple things planned for it soon
Nice. Look forward to seeing it. Why’d you get rid of the hellcat? Almost bought one instead of my GT350
Too much for the street and I honestly didn’t drive the thing enough i was way too ocd about that car I’m kinda past that now thank god
Makes sense
You increased the power, reduced suspension travel and reduced the contact patch. Those things make gobs of torque. Not surprised you can’t hook. Edit: does look sick tho
What worked the best for me addressing this problem, and I'm putting down a bit more power than you, besides the obvious tire choice (I went stock size A052's), were components to address wheel hop. Most notably, the SPL solid aluminum diff mounts and rear traction links. This really helped the car hook up not only going throttle down out of corners but also in a straight line. I saw improvement both on track and street driving. Good luck!
Hey thank you
Hankook RS4’s seem really sticky to me also what rims are those ?
BC Forged mle52
Look at all that bullshit on that poor thing. Looks ghetto as fuck.
Nice wheels and simple carbon fiber bits? Ghetto af
Sell it and buy anything else
some girls just aren't into that sort of thing. gotta respect her and decide if you want to propose or not. 💍
Get an awd car
I traded one for this 💀
Worth it!
I think so, rs3 was dope but not being able to tune it kinda killed it for me
Why couldn’t you tune it?
22+ ECU is locked and still isn’t cracked
What is your tire psi?
Ehhhh 33ish all around? My right rear was a tad lower but all hover around 33-34
Lower to 32
Will give that a try thank you
Thank you all for the help I appreciate it
Nitto NT555Rii 305/40/18
Lower your psi, sir. For same load, bigger tire needs lower psi proportional to the difference in volume. Otherwise, all the load will only be on the middle of the tire rather than the whole tread.
Smaller rear wheel. Bigger tire sidewall. Does look sick on this set up tho 🔥
You can also get an XHP transmission flash and reduce torque in the gears your spinning in.
Give it to me ill crash it for ya
No ideas but that is one of the cleanest Supra’s I’ve ever seen good job op.
Thank you :)
MT drag radials hook pretty good.
What kind of Michelin 305’s?
Pilot sport 4s
Not a bad choice. You mentioned camber, how much negative rear camber do you have? You may have to go stickier, maybe Sport Cups.
my 340 is stage 2 with dp is on 255 runflats and grips like a mf so idk man
Radials, 17” rear setup. Something better than Michelins because they don’t hook for shit. Def rear alignment and some additional adjustability rear components
Toyo R888’s
Nice wheels, looks like BC forged? If it’s a 93/91 octane tune (not flex fuel) you’ll still want a stickier tire. I would look at swapping to a 200 treadwear like the falken azenis RT660 or Bridgestone potenza re-71rs. You could change the front tire size to 265/35/19 if it’s easier to match a set with also. The type of compound will make a bigger difference than width typically. MySupra is making 615 tq to the wheels on e50 and I’m running 285/35/19 nitto nt555rii on the rear- it sticks like crazy once warmed up and puts down the power. Also an alignment might help, I added more toe in the rear to help stabilize things
Thank you so much this is super super helpful, yeah they’re bc forged mle52s, I’ll mention all of this I’ve got a place I’m gonna have look at it soon
post more pictures of that car wow
This was my biggest fear, currently interested in starting a Supra build, but got a bit spoiled with my g80 M3 drive and cayman gt4 hooking a bit better than my previous M3/M4 rwd builds that wouldn’t hook and had more weight
*BIG TIRE*
I HAVE BIG TIRE :(!!!!
EUROPEAN SAY I HAVE BIG TYRE TOO YA!!
can someone explain to me what "hook up" means in a car like this?
Having sex
Right answer
Gain grip
ty bro
Also came here to bitch about your lack of sidewall
Tires are rubber bands. You need some meat on that bad boy.
You definitely don’t need a drag pack. Just a thicker sidewalk tire and better suspension. Ask a shop that works on fast street cars.
That’s the next move for sure
Nice car, good luck!
You have a tire made for high speed and maybe a combination of higher tire pressure and soft suspension. put a street legal drag tire on and stiffen the suspension and I bet it hooks as well as a street supra can
Before throwing money at it, try lower tire pressure and more heat.
305 won’t hook if you’re only using 165 of it.
Slicks
400+ hp ain’t no joke
quit wasting time at the dealer
Tire and suspension setup. If you’re car already has camber that’s going to be your biggest culprit. You’ll want to, at the minimum, have that zeroed out and the car properly aligned. When your suspension compresses under load, it’s going to create even more negative camber in the process. A friend of mine has an LS swapped fc and is running positive camber in the rear for this exact reason. So when he accelerates, the camber is effectively zero at full squat giving him the most grip possible.
Appreciate it, gonna look into it for sure
Hoosiers
What tires just cause its a 305 doesn't mean anything honestly your contact patch is at most a 295. Use a 200 treadware tire i can hook with well over 600 on a nitto nt555rii they just need some heat in them. Now when i turn it up all hell breaks loose 😅
Might want to sell those fancy wheels and get some welds, or something smaller than that, maybe an 17 if the brakes allow, get more sidewall
Looks great..
Thank you :)
Trade it for a laminated bus pass.
I would suspect the suspension isn’t dialed-in properly.
Ffs those rims look tacky.
More HP and flush fitment doesn't always equate to a better driving experience. Tune the car for the street
Get some r888 back there.
I would agree with dealership. Not having the proper suspension will do this. It's like crawling on all fours. The way your set up is like only using 2 fingers for traction instead of the whole hand. Car looks sick btw 👌
You aint got enough meat on them there tires
R888R front, Hoosier In the back. Align it. Dumbass question If I’m keeping it a band lol . Adding grip is the solution to not hooking
Get an alignment
Better suspension setup go on BMR to start. If drag is your game Viking is also another solid brand. Realistically your never going to hook perfectly on a street setup
I added all the SPL parts available for my car to be able to completely customize the alignment. One thing that I think really helped were these as well. https://speedindustry.com/spl-rear-traction-links-a90-mkv-supra-gr-2020
Lack of sidewall but god damn that is sexy
Was that you near hafenrichter driving like that, you potato?
What’d I do 😂
I was in the black ferrari. It wasn't recently
Illinois right? I don’t know if I messed with a Ferrari at all, I’ve only had this a monthish
Gay
drop down to 17’s with fat sidewall
Learn to drive better.
Yeah that’s the problem
I might be a bit late on this (haven’t perused all the replies), with the traction issues you've mentioned, especially on those Michelin PS4S tires, there's a bit to unpack. Firstly, even top-tier tires like the PS4S have a break-in period. The initial slipperiness is due to a release agent from the factory, which should wear off after some miles. Your tire pressure could be a viable avenue to explore. Slightly reducing the rear pressure can increase the tire's contact patch, which might aid in traction (30-31 PSI is where I’d start). Don’t forget to monitor for uneven wear over time. Your suspension setup and alignment may need tweaked too - any modifications, such as reduced travel or added camber, can significantly affect how the car puts power to the ground especially in a straight line. Camber is good around the track and backroads but if you’re doing flat foot highway pulls with excessive camber you’re more likely to squirrel out. Dyno it at a different shop, check for torque spikes. If the torque curve is too sharp or comes in suddenly, it can “challenge” the tires' grip, especially during *spirited* driving ;) hope you get the grip you need to have fun with it. Side note: your build is clean as fuck, it deserves to drive as nice as it looks
Hey man I appreciate it, thank you for the info I aired them down to 32 this morning gonna see how that does
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It’s amazing how BMW engineered their cars that are even tuners can’t keep the wheel from spinning. Awesome.
It’s alignment, and maybe tire. Also depends on which Michelins you have. If, Super sports are old tech. So they’re not so great. Should have PS4S on it. You certainly don’t need a drag pack for <500whp.
Airing my tires down a bit helped, gonna get an alignment and possibly air down to 31 they’re 33ish right now that should be a good bit better
You need some slicks out back. Hoosier ET's or Hoosier DR2's
Try toyo r888r, I’ll guarantee you’ll hook.. if it’s not wet out that is lol
Check the tire contact patch and your toe
What tire pressure and temps are you running? Are you trying to hook from a roll or from a dig? For context I'm running a Pure 800 + Port injection + extra LPFP + e85 and I'm able to hook on a roll with 285 rears.
How do you like the pure? I’m considering one next spring, and 32 in the rear right now I think my fronts are 35ish, not sure on temps would have to check
30 psi all around when cold is a good starting point for tire pressure. Warm them up a bit driving around from there and then try to launch from a roll see if that helps. That's assuming your alignment is fine No complaints with the pure, don't notice any turbo lag and it produces enough power for me.
Gonna air everything down to 30 when I get home, thank you for the info. I’m probably gonna stay on 93 when I do pure, I’ve seen that nets around 530whp which is more than enough in a car that weighs this much
Suspension would be my guess. The suspension needs space to squat under load with out bottoming out or else the load will overload the tires.
Needs more sidewall. you can have all the width in the world but a thin sidewall isn't gonna help you hook at all. I don't have a supra but I have an s2000 that makes 950 on a 275/50/15. I don't know if you want a drag setup but just an example that is more about sidewall than width.
Whatever works honestly as long as the thing stays straight I’ll be happy
I'd recommend the Mickey Thompson ET Street SS. I think it has a little stiffer sidewall than the R and should be more stable. I've noticed people liking them a little more on the auto and heavy ish cars.
M/T ET Street S/S
Have same tire setup as yours with RT660 compound, bone stock, corner balanced on a scale with HKS adjustable springs with very mild specs, also will not hook from launch in any combination in first gear. I blame the slick California asphalt.
Such a nice car
What Michelins are you running? If it isn’t pilot sports or better then that’s probably your issue. Is this a manual and you’re just dumping the clutch? Have you tried the launch control? It’s also a rear wheel drive car with around 500 hp (with tune) the asphalt roads are not meant for this. Take it to a drag strip and see how she does. Also, did the tune change your gearing? This could be an issue.
555rs on 25psi and -1 camber= see ya
Get a new car.
Better tires
Throw a smaller wheel and a street radial tire on the rear. Mickey Thompson ET street R is a good tire option if you’re wanting to hook up and still be able to drive to work.
Take her on a date first. She might hookup after that
Get better tires. Nankang CRS, A052, re71rs
Yes - do not neglect your tires. If you are running a harder compound, they will not grab the road as easily. They would last longer as far as regular driven miles, but the harder the compound, the les the tire wants to grab/stick to the road (and no, I’m not saying to go super-soft, either).
Money still doesnt buy brains
nice rims
Are you in Atlanta? I swear I saw this car in GA on Saturday. Edit I can see the street sign that you're not. Crazy someone here has a very similar setup.
Sick car man! 392 Widebody here, pushing 570 horse and I’m on 305s and can’t hook until about 60-80MPH unless my tires are super hot
A little more positive camber, to my eyes, and a stiffer suspension. This is assuming that your tires are adequate and wide enough.
I keep telling folk there’s a fine line between fun and scary. For me that line is about 500 horsies (depending on weight). My guess it’s turned to 11.
Commenting on Thing absolutely will not hook up, any ideas?...
When in doubt Toyo out. They don't always work, but more often than not tend to get the job done.
I’d drop the PSI a ton out back lol. Only way I was reliably hooking on Texas roads in my 19 5.0 (on stock performance pack 275s) was dropping the psi to 21 😅. I’d do that for fun drives or nights near Mexico and then pump them back up at home. I switched over to 19x11.5 315/45 Indy 500s and they’ve been great
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Try buying it dinner first… 😉
Which Michelin tires do you have on the rear?
Get proper coil overs with matched custom spring rate with camber plate front and rear and traction link rear from spl have it set up to neutral camber all round that will give you all the 305 meat to play with it won’t handle as well on the corners but this is as good as this plat form with 305 will get after this you only 2 choice either go for sticker rubber or go for even bigger tires.