I dont know if this is a repost, but I would like to know who has 600 to 700 hp ON THE BLOCK, so NOt the wheels. Is it hard to drive, keep it on the road or doable with a nice setup of brakes, suspension, ... Also would you be so kind to write your setup down => engine, drivetrain, gearbox for sure, wheels and suspension. I need some advice on that because I am working on a good setup to keep that power on the road. My car is still in the shop untill the end of august, but want to put everything on it now so I can drive "safe" by then. I have done my research but I just wanted to know what your experiences are.

Thx!

 

Stock block keep it at 400 at the wheels or 450 on your dyno. Anything above 500 and you will have traction issues, even with any suspension setup. Reliablilty on a stock bock with turbos does not exsist. You want to do it right build your block. If you must run a stock block keep it at 400ish. Just MO.

 

+1. Even with 305mm rear tires and camber set at -1.5 with slight toe in I have traction issues in 1-3rd with 500+whp. You just have to learn how to drive around it and be respectful of the power. Keep in mind this setup has certainly helped but did not eliminate traction as a problem.

Setup:
Conti SP2 305mm rear
Camber -1.5, Toe in
TEIN Flex
SPC Camber kit

 

Aren't you using 20" wheels? Nothing wrong with that, and your car is gorgeous and they match it well - but if you are serious about curing traction problems that is the first place I would start on your car. Then go with a softer spring than the 12/12 that comes with the tein flex's.

Also, KempieZ has a built+sleeved motor, no worries about the power - just on how to plant it.

Kempiez, how often will you be driving it? A good set of tires and well setup suspension should alleviate most of the traction problems. If you aren't going to be racking up the miles, put on a set of mt radials or BFG dr's. Big brakes will help depending on what you are going to be doing with the car and how aggressive you drive. I drive my 1000+whp lexus on the street with stock brakes - and I just don't get on it unless I have a straightaway that provides more than enough room to brake.

In the end it all depends on what you want. For road racing and handling you will want the car setup one way. To plant 700, 800, 1000hp or however much power you will want the car setup softer for good weight transfer. With increased power, you are faced with a larger trade-off between straight-line traction and handling traction

 

Your problem is your suspension is to stiff and you use larger wheels. I just have hotchkis springs and use to have 275/40/18 kuhmo's and I would hook in 2nd if it was warm with 510rwhp. Now with 606rwhp and 305/35/18 nittos DR traction is the best it has ever been.

 

Yes, they are 20s and this is certainly not a setup to optimize traction......just help it a bit while maintaining show car looks.

Very well said.

 

See above post. My setup is not designed to maximize straight ahead traction or setup as a drag car. I was merely pointing out that even with larger tires and suspension settings at 500whp traction can be a challenge. I just learn to drive around it and not mash the pedal all the time.

 

I have already bought the D2 big brakes for more stopping power but I don't intend driving many miles. Its a weekend car mainly. So I would go more for straight-line traction. I want a good tire setup without having to roll my fenders. So I could go max 285 in the rear I think. ( 285/30/19) With hotchkis sways, what off set to use, or isnt it doable? With BFG dr's.

 

quaife LSD or something similar may help in keeping your car straight at da tracks. with 500whp+, you can't really punch in from a dig. not worth the risk in your everyday driving.

 

Even 400 hp is hard to hold onto he road with on 285's... Couldnt imagine 500-600

 

If my tires are warm and cleaned off I can hook in 1st