Quote:
Originally Posted by fastyz400
Grease,
I don't know about all that, but I do know that my GXP had very minimal torque steer compared to my CSRT4.
I remember when I first punched it in 2nd (CSRT4), I almost went off the road. lol.
My GXP gave a small tug off the line, then just went straight.
- It had a custom tune
- Cat back exhaust
- k&n
So, I'm sure it put more power down than stock, and still very minimal torque steer compared with my CSRT4.
I'm just saying the article mentioned sidewall distortion on the front tire during acceleration. It does make sense. You see the sidewall distortion on a Top Fuel dragster when taking off. Sample principle.
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That car has a different suspension and driveline setup. The tire itself has very little to do with it. You're talking about rotational force and how it affects side to side pull, which it really doesn't do.
With the drag tires, you're comparing super soft rubber compounds with almost 0 pressure in the tire compared to a much harder street tire compound with 32 psi or more in the tire. The sidewall on the CSRT4 do not deform much, there isn't much sidewall there to begin with.
Main things that cause torque steer are uneven and unequal length drivelines or driveline angles, along with engine/transmission movement, and suspension flex.
If you notice with this car, it's virtually nonexistent on a flat even road with the steering wheel straight. Hit a slant or dip in the road and it yanks it one way or another. That's because of those drive line angles. If you turn the wheel, you're changing those angles and will get torque steer.
Changing tires/wheels to a lighter package may help, along with changing wheel width. Major ways to upgrade is to stiffen up the front suspension, go to solid engine and trans mounts. The driveline angles you won't be able to do much with.