Wheel hop

wstar · 05-20-2009, 11:18 PM

Yeah on my 7AT I haven't had any wheel-hop issues. I mostly attributed that to the independent rear suspension on this car. My last car had a solid rear axle, and it was a bitch to tune wheel hop issues out of the suspension, esp when stiffening up the rear anyways. It would always hop given an uneven launching surface of course.

m4a1mustang · 05-22-2009, 08:34 PM

Quote:

Originally Posted by wstar

I mostly attributed that to the independent rear suspension on this car.

I think it's the other way around. My Mustang was really as smooth as butter on a hard launch, but the Cobras had and their IRS had a hell of a time putting the power down without the new bushings to help.

It could just be the design of the suspension, though, not necessarily whether it's IRS or a solid rear, because wheel hop is a huge issue leaving the pits in NASCAR and under heavy braking/accelerating at road course tracks. They have solid rears but use an old-school truck-arm set up.

ChrisSlicks · 05-22-2009, 08:45 PM

I think you're right, I think it has more to do with the suspension geometry than anything else. On a sticky track with sticky tires some of the rotational force gets translated to vertical movement, and depending on the suspension this may allow the axle to be pushed up and compress the spring.

05-20-2009, 11:18 PM	#1 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3595	Yeah on my 7AT I haven't had any wheel-hop issues. I mostly attributed that to the independent rear suspension on this car. My last car had a solid rear axle, and it was a bitch to tune wheel hop issues out of the suspension, esp when stiffening up the rear anyways. It would always hop given an uneven launching surface of course. __________________ 7AT Track Car! Journal thread / Car setup details

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05-22-2009, 08:45 PM	#3 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 654	I think you're right, I think it has more to do with the suspension geometry than anything else. On a sticky track with sticky tires some of the rotational force gets translated to vertical movement, and depending on the suspension this may allow the axle to be pushed up and compress the spring.