Lots of wheelspin with 285's out back and about 400 horses?
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Lots of wheelspin with 285's out back and about 400 horses?
If I had the apexi rx6 turbo kit, producing a little less than 400 horses at the wheels, would 285 hoosiers in the back stick well? Is anyone running anything like this? How much wheelspin do you get? I don't want to be spinning through 4th gear or anything. Thanks.
#3
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You're likely talking about 285/30/18, right? For straight-line traction, you'd be better off with something with a little more sidewall... like maybe a 275/35/18
This was illustrated to me by my friends old 700-hp Supra, that would virtually liquify his 285/30 S03s in any gear. 275/35 S03s helped considerably.... 275/40/17 might be even better...
This was illustrated to me by my friends old 700-hp Supra, that would virtually liquify his 285/30 S03s in any gear. 275/35 S03s helped considerably.... 275/40/17 might be even better...
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Originally posted by DamonB
It's funny how whenever you speak of one of your cars it's always in the past tense
It's funny how whenever you speak of one of your cars it's always in the past tense
#7
While the 285/30-18 setup offers nice grip in the corners, I commonly slip the tires when starting from a stop in first gear completely by accident. I am running BFG g-Force R1A tires in that size for track stuff. I have done this a number of times just trying to get a brisk but not overly aggressive start -- just coming out of the pit onto the track. Come to think of it, second gear goes up pretty quick, too, but it might just be the marbles.
Or at least I was two years ago, but I haven't been to the track since then. I am sure my R1A will be even easier to light up when I run them next time.
-Max
Or at least I was two years ago, but I haven't been to the track since then. I am sure my R1A will be even easier to light up when I run them next time.
-Max
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First and second gear is very touchy with anything around 400 RWHP unless you have slicks. Even then if they are not up to temperature, you will get wheel spin. I made a manual boost control just for this reason. 1st & 2nd low boost, push a button and now higher boost.
#10
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Originally posted by ZoomZoom
Get R compound drag radials for the back just watch out during thr rain.
Get R compound drag radials for the back just watch out during thr rain.
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Originally posted by CCarlisi
Great solution if you only want to go in a straight line
Great solution if you only want to go in a straight line
A$$
i love the 100 treadwear rating too
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Re: Lots of wheelspin with 285's out back and about 400 horses?
Originally posted by mrgracer
If I had the apexi rx6 turbo kit, producing a little less than 400 horses at the wheels, would 285 hoosiers in the back stick well? Is anyone running anything like this? How much wheelspin do you get? I don't want to be spinning through 4th gear or anything. Thanks.
If I had the apexi rx6 turbo kit, producing a little less than 400 horses at the wheels, would 285 hoosiers in the back stick well? Is anyone running anything like this? How much wheelspin do you get? I don't want to be spinning through 4th gear or anything. Thanks.
I don't think you'd have a problem spinning the tires with 285/30's with a soft enough street tire. I'd think you need to making a lot more HP than 400RWHP to spin 285's in 4th gear.
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Well, 4th gear was an exageration(however you spell that fkin word), but I do want excelent traction along with about 400 whp. Maybe I should have changed the thread to: What kind of tires( size and brand) do I need to have great road racing traction with 400 whp? I don't wanna go with 18's, and I really don't weanna have to put a widebody on it, so any suggestions would be appreciated. I think that was the thread I was meaning to start.
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Without 18s, you're talking 17's. Get a 17x10" wheel in the rear, and mount a 275/40/17. Its a very common size w/ lots of choices.
If you go with an R compound, you can try drag radials for straight-line performance, or even a track tire like a Toyo RA1 or Yoko A032, both available in that size.
For street tires, try a BFG KD or Toyo T1S, Yoko AVS Sport or perhaps the Nitto that Vosko was talking about. S03s are a good tire, but only available in 265/40/17.
If you go with an R compound, you can try drag radials for straight-line performance, or even a track tire like a Toyo RA1 or Yoko A032, both available in that size.
For street tires, try a BFG KD or Toyo T1S, Yoko AVS Sport or perhaps the Nitto that Vosko was talking about. S03s are a good tire, but only available in 265/40/17.
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BFG TA KDs will be your best bet, if money is not an issue, you could also run Toyo RA1s, they will stick better, and last almost as long. I would not run any other R compound, they will get very hard, very fast. Neither of these tires is safe in heavy rain above ~55-60 mph, unless brand new. These are not guesses, I have run all the tires mentioned above(except the nitto, which was only available in a 275-40-17) on cars with silmilar, or greater HP, both road racing, and street. Hope this helps, Carl. BTW, on any of the others, I can let you know why not if you like.
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Yeah with 17s you're limited to 275/40-17 on 10 x 17 wheels. You could run this all the way around with 2.5-inch coil springs. 275/40-17 is 0.7 inches taller than stock in overall tire diameter, so your car might look a little raised. If you have ride-height adjustable shocks you can lower the ride height, but then you'll get tire rubbing fender lips. 265/40-17 on 9.5 x 17s might work out better.
Personally with cold tires, you can light any tire up with LESS than 400 rwhp. My advice would be to warm the tires up before really opening up the throttle.
Personally with cold tires, you can light any tire up with LESS than 400 rwhp. My advice would be to warm the tires up before really opening up the throttle.
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I've got that combo on right now... 17x10" +44 Fikses w/ 275/40/17 S02s. No rubbing, and no coilovers needed (even though i happen to have them)
See the thread below for pics of my car w/ 17x9" SSRs w/ 275/40/17 rear bridgestone RE71s (the largest 275-section tire i've ever seen, about 1" wider on a 9" wheel than the S02 on a 10"). I don't see why you'd want to run a 275 up front on the street, but you would need coilovers for that. I run a 235/45/17.
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/pics-7-a-206648/
See the thread below for pics of my car w/ 17x9" SSRs w/ 275/40/17 rear bridgestone RE71s (the largest 275-section tire i've ever seen, about 1" wider on a 9" wheel than the S02 on a 10"). I don't see why you'd want to run a 275 up front on the street, but you would need coilovers for that. I run a 235/45/17.
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/pics-7-a-206648/
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Manny, are you trying to say that my car doesn't handle neutrally or turn in crisply?! :-)
Originally posted by SleepR1
Yeah, Pete, I was suggesting 2.5-inch coil springs for running 275/40-17s all the way around to preserve the neutral handling and turn-in response
Yeah, Pete, I was suggesting 2.5-inch coil springs for running 275/40-17s all the way around to preserve the neutral handling and turn-in response
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Originally posted by ptrhahn
Manny, are you trying to say that my car doesn't handle neutrally or turn in crisply?! :-)
Manny, are you trying to say that my car doesn't handle neutrally or turn in crisply?! :-)
#25
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Beating a dead horse....
Yeah, 275/40/17s are gonna help, a lot.
As RRR1 mentioned, I'm running these in the back with 378rwhp (with the RX6) and having few issues with wheelspin.
Obviously when they're cold it happens, and every once in awhile, if I really nail it, or if the surface isn't perfect it'll slip good, but nothing compared to the 245s on the car previously.
Good tires too. Kumho MXs. They seem to be gripping nicely and wearing respectably.
G'luck with the setup.
paz,
-E
Yeah, 275/40/17s are gonna help, a lot.
As RRR1 mentioned, I'm running these in the back with 378rwhp (with the RX6) and having few issues with wheelspin.
Obviously when they're cold it happens, and every once in awhile, if I really nail it, or if the surface isn't perfect it'll slip good, but nothing compared to the 245s on the car previously.
Good tires too. Kumho MXs. They seem to be gripping nicely and wearing respectably.
G'luck with the setup.
paz,
-E
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