Quote from: no1kickerCould be that some people have really old tires...or real good ones.  With the stock chip the tires would smoke at more than 1/2 throttle from a stop.  Now with the TG you hit the gas and the car moves, then 1 second later the tires roast.

That could be part of it, my STE had some pretty shitty tires on it when I got it, but it still could barely turn those over.  With my removed cat and K&N filter, it had no problem roasting the shit out of them.  I put my dads RSA's on it from his GTP and they were a lot better, and stuck almost like the other tires when the car was stock.  Then I put the chip in and from a 25mph roll they would go up in smoke, a lot of smoke.  Then I put my Bridgestone Potenza's on it and it wouldn't break them loose unless I was going <10mph.  Then I did the cam/topend and it will smoke them from a 20mph roll.  So, it could be partly the tires, but I have some pretty good tires, and I sure as hell can't keep them planted to the ground.  

Shawn

Quote from: Prospeederwhy is ur exhaust restrictive? isnt ur car stock? and i dont have the new cross over, and mines just fine, thats strange

Yeah what he said, but no, the car is FAR from stock engine wise......so yeah, that is why I think it is the exhaust causing the problem

i take it the catylic converter is a huge restriction

I can spin my tires through first [once boost hits anyway] with my 235/45/17 ZR-Rated Nitto 555 Extreme tires.  8)

Quote from: 90TGPI can spin my tires through first [once boost hits anyway] with my 235/45/17 ZR-Rated Nitto 555 Extreme tires.  8)

The speed rating has nothing to do with how well the tire grips.  The traction, temperature, and treadwear ratings tell you that.  However, usually the higher speed rated tires are better performance tires so they grip better.  Higher speed rated tires will have stronger sidewalls so they won't flex as much on takeoff and around curves and stuff, whereas if you get the lower rated tires the sidewall will flex a little more helping the tread grip the ground better.  If that makes any sense.  I'm sure they are sticky tires, its just that telling someone the speed rating when your trying to explain how sticky they are doesn't exactly help.

Shawn

is there a point to having Z rated tires that are exspensive and u can only go what....128 mph

Yes the Z rating tells it grabs the road well and and has a higher speed rating. If you are going 128mph+ you need to think about what would happen if a rabbit or small animal ran out in front of you... or worse yet a large animal or another viehcle :shock:

small animal, bye bye, large animal or car, u have ABS brakes, ur not gonna lock up anyway, so traction in brakin is no good there, and turning, not a good idea at 128mph, u might as well pay for going that fast

Quote from: Prospeedersmall animal, bye bye, large animal or car, u have ABS brakes, ur not gonna lock up anyway, so traction in brakin is no good there, and turning, not a good idea at 128mph, u might as well pay for going that fast

You do know that maybe, just maybe someone may be going that fast on a road racing track right...not nearly as much chance of that happening then, and if you see a small animal doing 128, then you probably wont be swirving around it....

the speed rating really just tells you how much centripital force a tire can withstand. that force then coralates to a certain tire rpm and also to a vehicle velocity.  just means they are higher strength.
please correct me if im wrong

Quotelower rated tires the sidewall will flex a little more helping the tread grip the ground better

you want flexible sidewalls for drag racing but not for road-racing/cornering...is that right?

Quote from: futuretgp'er

Quotelower rated tires the sidewall will flex a little more helping the tread grip the ground better

you want flexible sidewalls for drag racing but not for road-racing/cornering...is that right?

Yup.  You want a stiffer sidewall for cornering, weaker for straightline.

Quotethe speed rating really just tells you how much centripital force a tire can withstand. that force then coralates to a certain tire rpm and also to a vehicle velocity. just means they are higher strength.
please correct me if im wrong

Basically, yes.  Its just that usually, if you're buying a Z rated tire it is a performance tire so it is better in straightline.

Quoteis there a point to having Z rated tires that are exspensive and u can only go what....128 mph

Z rated tires are rated for 155+.  If you want to be able to go that fast, then you probably should have some Z rated tires.  But usually, when you want a sticky performance tire, they will be Z rated or W rated or V rated to begin with, so you automatically get the high speed rating, when you might necessarily not even want it.  And like I already said, the sidewall is going to be stiffer on a higher speed rating tire, so the car should theoretically handle better with a z-rated tire over a lower rated tire.  

When I got tires for my STE I got H-rated tires because these particular tires were rated very well for wet and dry traction, I really don't need to corner all that well (but they were still rated pretty well for cornering as well) and they were significantly cheaper than any z-rated tire I could find, and H rated tires are rated for 130mph, why do I need to go more than 130 anyways?  And, the speed rating is for that sustained speed for an hour, its not like anyone needs to go over 130 for an hour!

Shawn

My Nitto's are a HUGE improvement from my old R-Rated all-weather pepboys tires I had on the original wheels. Night and day difference on the handling.  8)

Shoot, today, it was cold, and i had put 35 lbs of air in my tires cause they only had like 15-20 lbs, and on dry pavment i pushed the gas mabye half way and the thing just lost the tires, didnt burn out, but spun and sqealed them, kinda annoying, i always loose traction with this car, gravel is a pain in the ass too, i wonder how this thing was like brand new, that old lady that owned this must have had a need for speed lol