Does anyone here with 400+whp (under 500whp) that does auto-x frequently?

I'm trying to find out how much harder the car is, since it's getting away from the handling to more of a straight line performer.

I'm not asking about speculations and theories, I'm not asking about 350+whp/under 400 whp evo's, but some real experience.

Also, how many people have upgraded their brakes at that whp level doing road/track racing? How does the stockers hold up? because at 360whp, my brakes fade real quick.

 

Let me know if you're interested in 400wtq cars that auto-x and road race frequently. I would have thought wtq was more important than whp, since you don't even get to use your HP while autocrossing.

 

I'd imagine a 400+whp auto-x setup really depends on the turbo/motor setup. I'm sure a 50 trim on a meth diet would be much easier to handle than a GT35R on pump, where both would output around the same numbers. Although the stock turbo is usually quite enough to get you into 1st place. The same goes for a 2.3L vs. a 2.0L.

I'm an avid auto-xer and building a 400+whp 50 trim on a built 2.0L, hopefully I'll have it set before the end of the year to see how she handles the auto-x course. I also dabble into drag and rally, but my main focus is Auto-x.

How big are the auto-x lots in your area? We typically run 50-70 second laps at our usual parking lot.

 

In AutoX, the performance difference between an Evo with 350 peak HP and an Evo with 400 peak HP would probably be negligable on most SCCA style courses. You could put a big-***, peaky turbo on the car making a spiking 500hp, and the car could be totally useless for autoX. Which ever one has the broadest torque in the midrange power band would be the preferable autoX setup for accelerating 3000rpm-6000rpm between gates. In AutoX the wheel/tire and suspension setup are far more critical on the car than how much peak power you are making.

 

I agree. Even with my minimal mods list I feel that a good set of tires would have done more for the car than adding more HP.

 

More importantly the nut behind the wheel and his driving skill or lack thereof.

 

I don't need your help. You could go away.

___


We had few Evo's run with the right combo torque and power that was running the gt30 r turbo with 272/272 and meth kit at 32 psi.

I know miatas rule in sharp turning quick acting courses, but some of the course here on auto-x is opening up a bit, where it's more speed than technical. I know there is no way that miata could hang with my car in the road courses, I don't care if it has a LS-1 in it.

I'm wondering if adding another 40 to 50whp would make any sort of difference in the handling as well as driveability.

I'm happy with where I am on auto-x. My low to mid end is pretty good, but on Open Track, I lack so much in the straights.

So basically, I don't want to sacrifice the car away from auto-x but to gain on open road tracks.

I'm trying to see what others done to find some balance in runnin both different courses.

Thanks.

I run victoracers on auto-x and open course.

 

Me and my friend is building a evo for autox and track, Turbotrix built the motor with their 20g and tuned it. It makes around 400hp and 370 torque on straight 93 oct. No 100oct map yet since we feel it might be too much HP for autox already. The car will be run on 295 Hoosiers, it will be interesting.

 

Don't worry about it. He is obliged to answer every thread.

 

Keep me posted. I'm sure hoosiers will help, but I just want to get some good tips on setting your car up.

Most of the times, the higher power cars tend to jerk a lot and loose spool up on stop, unless you left foot brake/boost brake on turns and brakings.

SM class is very competitive, it's something I can't get my car to work around with.

I seem to done better on ESP class when the car was relatively stock.

 

If the case is that you dont want to give up anything in terms of a stable autox/street car I would say, stroker, some sort of upgraded stock turbo, TME/20-9G/White Rabbit/whatever. As much as you might of hated to hear Warrtalon's input, he was on the money, tq is what you want for autocross, as much and as early as possible. I wouldnt bump up to something as large as the 20G, I would stick with a stock based turbo, if for nothing more than spool.....however the car would get murdered on a road course by an equally prepped car with anything like a 30R or 'real' 20g.

Scorke

 

I'll let you know this weekend as I'll be runing my 418whp evo at a local auto x.

 

sweet.

smoothness is sorta hard to come by, from seeing some of the high hp FI cars running. My cars running pretty smooth, but really power does lack up top to keep the tq down low and mid with 272/264.



I honestly don't care for what warttalon has to say, wheather of not he's right or wrong. He doesnt have any common sense, I don't think. I meant by whp on general power band.

I say "power" now for those who's thick headed and just look to correct people on the forum.

 

What suspension/tire/handling mods have you done?

Scorke

 

Just Tanabe GF 210's with stock tires and a -3 camber in the front. Also will have a 25mm sway bar. This setup worked good with the stock turbo. Didnt have time to put the tanabe sustec seven pro's or the new rims and tires on. The coilover will be coner balanced when they do go on.