What's loose?
 

Alright ya'll so it may not be anything too serious but it is annoying as hell and I don't want to think nothing of it and break something. The other day, I took my car to the track and launched it at about 3000rpm. As soon as I dropped clutch, the car started to shake extremely bad. Yes I had traction control turned off and I know the car will shake/vibrate when you launch. But this was really unusual. Its a real violent shake and sounds like my motor is gonna shoot through my hood. Hard to explain. It shook so bad, it pulled my intake off the coupler to the TIP and my car cut off halfway down the track. I don't want to blame it on my tires because they're not even in that bad of shape. Could something be loose? I have a Cobb Rmm and that doesn't seem to be loose. This is really frustrating because it's causing me to spend a good second or two trying to get off the line because it's shaking so bad. It could be that the track is just so sticky but I'm the only car that has this issue out there. Let me know what ya'll think or what I should check because I don't have a clue where to start. Thanks guys.

3 or 6, have you checked your pmm and tmm? If you have a 6 what about the diff mount? We need more to go on then a general description of a problem.

tapatalk, it sucks

Sorry man. I got a ms3. I haven't checked anything other than the RMM and front passenger side end link. End link was a little loose. Tightened it up but have a gut feeling, that wasn't my problem. It's just too violent of a shake for it to be the end links. Not too sure where pmm or tmm are located. Still learning man.

Tmm is under your battery box and the pmm is on the passenger side of the engine compartment. I'll take location photos tomorrow when I get to work.

tapatalk, it sucks

Sounds like wheel hop.

This should roughly give you the location of the PMM
https://i.imgur.com/extaCzNl.png

And the TMM location.

https://i.imgur.com/OiiAwHLl.jpg

If I had to guess, you dumped the clutch in or near peak torque output and experienced severe drivetrain movement.

If I had to guess, your a-noose is too loose. Try looking back there and seeing if there's any play in it.

I would lean towards it being the TMM. On a 2012 its under the battery box.

It's wheel hop. I got it hard enough in my Juan to stop the wheel speed sensors from working, feels like the car is about to fall apart. Upgraded mounts will fix it.

+1 on it being mounts. Sounds like you may have launched it so hard everything was moving all around.

Get a rmm
Maybe slip the clutch instead of dumping it.

I appreciate you taking the time to show me where they were located. I had the chance to pull both of them out and inspect them. The PMM looked pretty good to me. Not a scratch on it. However the TMM had a tear in it on both sides of the bolt hole. I took pictures of the PMM and TMM. Honestly, the TMM looks a lot worse in the pictures than what it really is. My question is, do y'all think those small tears in the TMM can cause that violent of a shake? It's pretty bad. And it does feel like the car is getting ready to just fall apart. Can the tears cause this? Especially with the PMM being in perfect shape? Not sure if if could be a suspension problem because it only happens at the track when I dump the clutch. I don't notice anything when I'm just doing regular driving. Let me know what y'all think. Btw, what the hell is an "a-noose?"

Look into Dammond Motorsports, I've got all 3 of their mounts and there is not an appreciable increase in vibrations. Plus they rock at the strip. Me personally, I'd replace the mount at the very least with a stock one, but if you're tracking the car upgrade.

tapatalk, it sucks

Yeah, I'll have to look into that once I get some more money. I have a whole bunch of mods I want to do. Lol. This is just so annoying. It literally feels like there is a guy with a jackhammer in my engine bay. It's terrible. I'm pretty certain it's wheel hop. How can you "cure" this shit? lol

Mounts help.

tapatalk, it sucks

Before I go and replace mounts, I wanna make sure it's not anything else. You think anything on the suspension side could cause this? I already have a Cobb RMM. The other mounts don't look too terribly bad either.

Currently on my car I've got mounts and coilovers and no wheel hop. When I swapped mounts I killed the wheel hop i had and some torque steer because the engine wasn't moving. Could it possibly be that your struts or springs are causing issues? It's possible, but i don't know how many miles are on your current setup or what your current setup is currently. You have a ripped motor mount and I'd venture a guess that's where your problem lies.

tapatalk, it sucks

Do this, and replace all your mounts with better ones.

What kind of tires are you running at the track? All seasons or drag radials?

You guys can laugh at me for this question if you would like but what's the difference in slipping the clutch and dumping it? Lol. Also, I haven't changed the tires since I picked up the car about 3 months ago. The tread isn't bad though. They are the hankook tires. Car has 50,000 miles on it. I'll be honest with this one guys, the reason why I'm hesitant on replacing the mounts is because I've been reading other threads and even on other forum sites and a lot of people have been suggesting a RMM to people that have this problem this bad. And like I said, I already have the RMM. You guys really think that replacing the PMM which has no sign of wear and seems to be in great condition and the TMM that has a small tear will fully fix this problem? You guys would would know better than I would. Lol. I mean, like I said, it's as if someone was using my front end as a jackhammer. I can feel the wheels slamming against the track, literally as if they were lifted up and violently slammed back down extremely fast. I hope I'm explaining this well enough.

When you slip the clutch you let it out slowly instead of just taking your foot off quickly.

It doesn't matter what the TMM and PMM look like, they are made for comfort and have too much give. You want a mount that will not let the engine move, or not let it move very much. I would follow @monkey.bones.007; advice on going with Damond mounts. I personally do not have them yet, but EVERYONE who does says they hold the engone solid and do not add a ton of NVH.

Adding the mounts may not fully fix your problem, but it will certainly help. To fully fix the issue you need mounts and tons of seat time to learn the car and learn what it takes to get a good launch. Anyone can give advice, but advice can only go so far, actual seat time putting that advice to good use is what counts.

It really boils down to what your goals for the car will be. You have a small tear in one mount, imagine the force it took to make that tear. Now amplify that force hitting your other mount because one mount isn't holding as well as it should. Determine what you want from the car and then make a decision on what you think you need. I'd suggest at the very least a new mount for the torn mount. Not sure what stock mounts go for, but if it is close to an after market mount go after market.

tapatalk, it sucks

You mean you haven't removed the front tires and checked your suspension? Do it already! If its as bad as you say it is i would have checked everything top to bottom immediately. And yes replace your god damn side mounts!