Hey guys well i was just wondering. Recently i noticed that when i launch my car it has a serious vibration. The car has a Exedy Twin Disc hd with your basic bolt on's and tune 23psi.
Stock turbo 05 evo 8

My 2step is at 6k.

I don't launch my car constantly but i want to know what may be causing this.
To my belief is it maybe wheel hop or that im not letting the clutch slip enough.

What do you guys suggest?
Could the 2step be set to high?

I was thinking of adjusting my clutch pedal but really have no idea on what to achieve.

 

You're going to have to define the vibration a bit better. If you mean car shaking a bit when you're hitting the rev limiter, that would somewhat explain it.

Why would you want to adjust your clutch pedal? If your car isn't moving with clutch pressed and you have no problem shifting, I don't really see where you see your troubles...

 

I'd say the clutch is needing a rebuild. Mine did this when it needed new discs.

 

Ok il try to be more literal, basically when i launch the car the entire car shakes violantly. It feels like the wheels are shaking badly and the vibration feels like if u on a vibrating chair lol.
Also i believe the Bad vibration only happens when i launch and get near my limiter.


I dont think its the clutch cuz my clutch grabs damn hard and does not slip or anything.

I was thinking maybe its wheel hoop.

Im going to try and make a vid today and c how that works out.

 

also the vibration can be felt througout the entire car and is fairly violent

 

Sounds like wheel hop.

 

Mine makes a similar vibration when engaging the clutch, it vibrates and i push in the clutch quickly cause its terrible and then i go again and its fine. Would that be the clutch needing a rebuild or a new cutch or something?

 

I dunno.. i think your car is telling you to stop launching... Do you drop the clutch or slip it?

 

Ima go with wheelhop as well.

 

Wheelhop is very dangerous.... it can break drivetrain parts in no time at all. If you are wheelhopping back out of it immediately.

 

alright i came to my conclusion, i spoke to ams about it and it was i was not slipping the clutch enought.

What i was feeling was wheelhop. I dont launch my car alot at all. I just noticed it and wanted to c what it was.

Since after talking to ams the problem went away after correctly hard slipping the clutch.
Also i just bought some rear trailing arm bushings with rear diff bushings to help.

 

Letting some air out of the tires also helps..... I drop mine down to 25 psi and that seems to make a nice improvement.

 

I just ordered new tires

I got the last pair of 245/40/17 Brigdestone RE01r from discount tire.

113 a piece

Cuz after correcting my launch my car spins hard lol

I have Crap tires on it now

 

Just wondering how many miles do you have on your clutch?

 

4000 miles