My '04 RL (no slip) is putting 230-240 to the wheels after a few parts, full exhaust and tune to 15PSI. If I'm not light on launches it's wheel hop city! So how do I fix it? I've heard new control arm bushings, would that do the trick for me or is it just a quirk of the car that doesn't have a true fix?
What kind of launches? General driving or drag racing?
Rotated Transmission Mounts is the fix.
Although, I simply replaced my rear mount with a poly insert, and I can't remember the last time I had wheel hop. I don't launch it hard from a stop very often, but I don't have issues.
I'm at a confirmed 260whp on 93, and I'm running E85 now. So... ~290ish.
Funny story, the reason I replaced the mount was, I realized that the car was getting so much engine movement on hard shifts that the supercharger pulley was hitting the front radiator support...
If you're still using the factory mounts, they're fluid filled and in our tests allowed the motor to jump around 3-4 inches on a hard launch. Replacing the stock motor mounts with poly mounts should pretty well eliminate this problem for you. In the beginning we used torque braces and I believe those may still be out there...they are no longer the best option and I would encourage you to skip past them. Replace the mounts. I believe there's a rotated trans mount for the 04 from Powell but I don't know how to locate that info off the top of my head.
As it's been said, rotated mounts. Made a huge difference. Basically zero wheel hop now. I only have stage one (front mount and rear spacer), I'm sure more is better though.
There is a great guide on here somewhere on how to properly install, to prevent vibration. Search should be easy to find.
I got my mine off ebay for cheap from a guy who installed them wrong and couldn't stand the vibrations. He had them on for 2 weeks then took them off and sold to me lol.
You don't know what wheel hop is until you go turbo. I used to get *very mild* wheel hop with 260whp on the M62.
With 370+whp, the *ONLY* fix is the Powell mounts. Wheel hop was extremely violent anywhere in 2nd, and occasionally the top of 3rd...
Now I just need to get a set of Pilot Super Sports or RE71R's to try and help tame the massive wheel spin.
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