Burnout and the backend scoots right

In my 2014 Shelby, when I roll onto the gas and break the rears loose (changed to 3:73 gears and Nitto DRs), the rear slides right immediately.

It's done this since I bought the car, curious what the fix is.

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Great Asp said:

In my 2014 Shelby, when I roll onto the gas and break the rears loose (changed to 3:73 gears and Nitto DRs), the rear slides right immediately.

It's done this since I bought the car, curious what the fix is.

E

Click to expand...

Did you swap to an adjustable panhard bar? Between an adjustable panhard and lower control arms, you should be able to dial in the rear axle geometry to get rid of the "rear steering" issue.

Great Asp said:

In my 2014 Shelby, when I roll onto the gas and break the rears loose (changed to 3:73 gears and Nitto DRs), the rear slides right immediately.

curious what the fix is.

E

Click to expand...

Turn steering wheel Right.


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Could be your thrust angle. Rear wheels not following the front. If you have adjustable control arms, an alignment will correct.

Here is how I fixed the issue. One phone call to Van and he hooked me up. Don't forget to enter SVTP on the order to get the discount.

Revan Racing Suspension System

raustin0017 said:

Here is how I fixed the issue. One phone call to Van and he hooked me up. Don't forget to enter SVTP on the order to get the discount.

Revan Racing Suspension System

Click to expand...

I wondered. So it is the suspension, or the lack of being able to dial in the suspension.

Thanks!

Looks like some winter work!

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Booky said:

Turn steering wheel Right.


.

Click to expand...

LOL, I get that. But I mean it really kicks out so the tendency is to over correct.

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Swap all the rear control arms out to something a bit more performance oriented. You'll get a touch stiffer ride, and a bit more noise in the cabin, but the "walk" wont be as severe, and will have less tendency to kick around on you. The stock rubber bushings, in a car with this much torque, wont hold up to much abuse. The 45k mile bushings in my car were trashed. Lots of opinions on what's best out there, but basically anything over stock, will be a huge improvement.

Thrust angle is why....adjustable LCA and then take to alignment shop and have them make thrust angle 0*.

I used BMR complete kit on the rear. No complaints other than some popping and groaning. I cut shallow grooves in the end of the bushings to let the grease disperse out between the bushing and flanges.
Front end man was impressed with the results of the alignment, due to adjustable links to address everything. Adjustable panhard bar, centered the body over the axle.
World of difference in grip and control of car.

I've done everything mentioned here, but my car still does it to some degree, just not as severe. I'm even running a watt's link. Under hard acceleration, you can still compress poly bushings, which can alter thrust angle under power. Rod ends were too harsh for me for street use.