Why the wheel hop all of a sudden!?!

FracaSHO · April 03, 2014, 08:55:24 PM

I have done a brake boost before (hold the brake, rev to 2,000ish RPM's, and go) while still completely stock. After getting the hang of it I started launching the car pretty good. Little squeal off the line, then a chirp on the 1-2 shift. Lately however, I've been getting wheel hop. Only with a tune. LMS stage 3, and now 4+. Launching at 1,800 RPM's or above causes pretty bad wheel hop. Always in sport mode or with advance trac off. I even tried it with advance trac on today. Squealed a little off the line with no issues, then wheel hop on the 1-2 shift. The 1-2 on the 4+ means business. What is going on? What should I or can I do? Should I reload stock tune and see what happens?

PLEASE HELP 😬

Brad
2010 SHO with PP
170* T-Stat
NGK LTR7IX plugs, gap at 0.030
BOV VTA
MyCal LMS Stage 4+
Sent from my iPhone

crash712us · April 03, 2014, 08:58:48 PM

Could be a indication of worn suspension parts, Or bad engine mounts.

FracaSHO · April 03, 2014, 09:13:39 PM

Quote from: crash712us on April 03, 2014, 08:58:48 PM
Could be a indication of worn suspension parts, Or bad engine mounts.

If I reload stock tune and it doesn't wheel hop, do you still think this could be the problem? I'm wondering if the increased hp is a factor.

Brad
2010 SHO with PP
170* T-Stat
NGK LTR7IX plugs, gap at 0.030
BOV VTA
MyCal LMS Stage 4+
Sent from my iPhone

crash712us · April 03, 2014, 09:25:51 PM

Its is a huge factor.

BiGMaC · April 03, 2014, 09:45:09 PM

Quote from: crash712us on April 03, 2014, 09:25:51 PM
Its is a huge factor.

Agree with Chris... check the tuning effects first. You might even try the stage 3 tune... It very well could be increased torque for the 4+. If it leaves with the tune change start looking at suspension as well as considering modifying your launch

Josephm · April 03, 2014, 11:13:20 PM

I would check motor mounts as well.

FracaSHO · April 03, 2014, 11:59:56 PM

This sucks! I was looking forward to going to Union Grove this Sunday.

Brad
2010 SHO with PP
170* T-Stat
NGK LTR7IX plugs, gap at 0.030
BOV VTA
MyCal LMS Stage 4+
Sent from my iPhone

Josephm · April 04, 2014, 12:15:31 AM

Its weird that this issue has not popped up more. Makes me think something else is going on, What tires are you running?

FracaSHO · April 04, 2014, 12:31:43 AM

Quote from: Josephm on April 04, 2014, 12:15:31 AM
Its weird that this issue has not popped up more. Makes me think something else is going on, What tires are you running?

Michelin pilot sport AS/3. Haven't even had the first rotation yet. I have been slacking though and need to check the pressure. It could be the added torque from the tune. I'm gonna reload stock tune tomorrow and see what happens.

Brad
2010 SHO with PP
170* T-Stat
NGK LTR7IX plugs, gap at 0.030
BOV VTA
MyCal LMS Stage 4+
Sent from my iPhone

FracaSHO · April 04, 2014, 10:40:40 AM

I reloaded stock tune this morning. Of course now I forgot how to drive! I can't get a good launch to see if I can replicate the wheel hop. And going back to stage 3 won't help because I already know I get wheel hop with that tune.

IF ANYONE HAD HAD ANY ISSUES WITH WHEEL HOP PLEASE CHIME IN WOTH YOUR 2 CENTS.

In the meantime, I'm gonna try launching some more on the stock tune, see if I can get her on my dad's lift, and email livernois to see if they can help.

I think this may throw a wrench in my Sunday at the strip plans.

Brad
2010 SHO with PP
170* T-Stat
NGK LTR7IX plugs, gap at 0.030
BOV VTA
MyCal LMS Stage 4+
Sent from my iPhone

dmharvey79 · April 04, 2014, 10:59:29 AM

My solution to wheel hop was to not treat the accelerator like a toggle switch, like I could before the car was tuned.

FracaSHO · April 04, 2014, 11:05:01 AM

Quote from: dmharvey79 on April 04, 2014, 10:59:29 AM
My solution to wheel hop was to not treat the accelerator like a toggle switch, like I could before the car was tuned.

What do you mean by "toggle switch?" No brake boosting?

Brad
2010 SHO with PP
170* T-Stat
NGK LTR7IX plugs, gap at 0.030
BOV VTA
MyCal LMS Stage 4+
Sent from my iPhone

dmharvey79 · April 04, 2014, 11:09:29 AM

I brake boost sometimes, but I roll onto the throttle to avoid wheel hop. Without the tune it was just mash it and go.

donky4444 · April 04, 2014, 11:44:47 AM

I run the same tires and tune in my 2011 non PP. The only time I have gotten wheel hop was when it was really cold out. Now that it has warmed up they slip just a little bit and then I am gone. When I use the brakes to spool up to about 2,000 RPM I don't put the gas to the floor right away though. I give it enough to get the RPM's up and hold it there. Once I let off the brake I go farther to the floor but not immediately, pretty quick though. No wheel hop launching like that.

FracaSHO · April 04, 2014, 11:58:23 AM

Quote from: dmharvey79 on April 04, 2014, 11:09:29 AM
I brake boost sometimes, but I roll onto the throttle to avoid wheel hop. Without the tune it was just mash it and go.

Good advice. I will try this method.

Quote from: donky4444 on April 04, 2014, 11:44:47 AM
I run the same tires and tune in my 2011 non PP. The only time I have gotten wheel hop was when it was really cold out. Now that it has warmed up they slip just a little bit and then I am gone. When I use the brakes to spool up to about 2,000 RPM I don't put the gas to the floor right away though. I give it enough to get the RPM's up and hold it there. Once I let off the brake I go farther to the floor but not immediately, pretty quick though. No wheel hop launching like that.

It was cold out, not really cold, but chilly enough.

Brad
2010 SHO with PP
170* T-Stat
NGK LTR7IX plugs, gap at 0.030
BOV VTA
MyCal LMS Stage 4+
Sent from my iPhone