That's what I'm reading, softer tires fixes this more often than not.  Problem is I just dropped $900 on tires about 5,000 miles ago due to "ozone cracking".
Original tires on had 25,000 on them.
And that was with a 50% credit from Michelin on 3 of them.

reduce the tire air pressure and take it for a spin to see if your hop goes away.

air them back up after your road test. I wonder if you can return your used tires normally you can get a trade credit, or sell your tires as used and get new ones or make other changes, or.... ride it out until they're worn out again

Thx 68. I'll try to drop the pressure later today. I'm pretty sure there all @35.

The SHO was in the garage all day, it was pretty cool outside so I think I got a pretty accurate psi reading.
Tire pressure was st 36.5 on all four.....? Not sure how it got that high. Reduced pressure to 32, wheel hop is still there but doesn't show up until a little higher in the rpm range.

I did notice ride quality is much better with the lower pressure...

2010 RCM non PP
K&N panel filter
sp534 @ 30
unleashed 93 performance+firm shift+boost
more to come.....

I had a chance to get underneath the car today and take a look at the torsion strut. It doesn't have any voids or open cavities to fill with urethane. As you can see in the second pic there is a machined bolt that only allows front to back movement.




2010 RCM non PP
K&N panel filter
sp534 @ 30
unleashed 93 performance+firm shift+boost
more to come.....

I've used the 3M window urethane for many years now from filling hollow motor mounts to using it for a vibrations damper for electric rad fan. I like this stuff. It works great in 400fwhp Honda turbos do it should work in my SHO lol. But seriously wherever there is a void or even thinner part to the mount there will be movement. Tightening things up will produce more NVH but it should be tolerable.


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Quote from: geswek on April 10, 2014, 10:55:38 PM
Only real way to stop it is traction bars up front.

There was someone on here LONG ago that did it -- he had the whole work up and parts list.

I use to have it all but I long deleted it; didn't see myself ever going that route.

First-SHO is who had the traction bar. And the 1st 11sec SHO!!!
http://www.ecoboostperformanceforum.com/index.php?topic=1586.msg19316#msg19316

Quote from: shoman04 on April 15, 2014, 04:05:06 AM

Quote from: geswek on April 10, 2014, 10:55:38 PM
Only real way to stop it is traction bars up front.

There was someone on here LONG ago that did it -- he had the whole work up and parts list.

I use to have it all but I long deleted it; didn't see myself ever going that route.

First-SHO is who had the traction bar. And the 1st 11sec SHO!!!
http://www.ecoboostperformanceforum.com/index.php?topic=1586.msg19316#msg19316

Yup ..... 1st and only 11 sec. SHO so far ..... and using that OMG godawful  AirAid CAI.
I still want a better one ... some where , someway , somehow .