Hi, I got a 97 integra GS-R and when drag raing at rpm over 7700 I get this hard shaking. from the motor or trans. I can really hear and feel it shaking via the shifter. I do have ES shifter bushings. Anyone else like this or is it only me?

 

I have 3 guesses
either
1 An Axle going bad
2 Clutch going bad
3 Crankshaft Balancer/Pulley is bad

it also could be a misfire in the engine

 

What about motor mounts? Check those first.

 

I have same problem. Somewhere above 7K the car vibrates. You can really feel it on the pedal when I hammer it. It's massaging. Is that a big problem? How do I go about checking it out? There are no check engine codes being thrown.

 

most likely motor mounts..i had that problem with my ek...

 

either axles or wheelbearings...

 

Maybe it could be the wheel bearings. I just dropped the gsr in my ek. All mounts were in tip top shape. I put in new axles though. Couldn't be that...Hmm...

 

same problem, high frequency vibration at 7k+. i have an aftermarket crank pulley, and i think it was a bad idea.

 

I highly doubt its the wheel bearings,if they where that bad,you probably wouldve noticed them when you changed the axles and they usually dont do something like that,they usually just make a humming sound,like when you drive with snow tires.

 

New axles mean nothing when dealing with FWD and hp. I would check the axles first, cause its always the culprit. I dont think it would be a mount if it was it shouldnt vibrate like that.

 

i feel jerks on my car when i did 140 today. when i let off the gas, it started jerking pretty hard... every second a jerk...

 

If its the axle it would only vibrate when you are on the power. If t jerks at pulling off and revving etc. then it could be a mount. You can also try shaking the wheel to check the bearing.