So my Problem is that at high RPM from 55k to 8k my Flywheels sounds like It Vibrating has anyone had the problem with this? I only notice it on my GSR motor w/Stock Flywheel and my old B20 motor with a Lighten Flywheel. and have Own Many Swap and built Many other motor and never had this Exp.

I have done the Research and have read that it maybe my mid shaft or even an Axle. but from what I read, most other are vibrating in lower RPM. My starts to Vibrate in High RPM and only when im at Full throttle... Any other ideas to check?

Specs

GSR Block
ITR Piston
Stock Flywheel
Aftermarket stage 1 clutch
Stock B16 Head

 

check your axles, tie rods, and motors mounts.

 

It's way more likely to be one of these vs the flywheel unless you severely screwed up TQ'ing it etc. simple fix 9/10 I vote driveshaft's

 

got rid of my vibe by filling old motor mounts with dow u-428 window weld.
now i have a different but less annoying vibe thanks to stiffer mounts lol.

http://www.ebay.com/itm/2-Dow-U-428-Plus-Windshield-Urethane-Primerless-Adhesive-Glue-Sealant-window-/181668356606?hash=item2a4c4721fe&vxp=mtr

 

This is an easy one. Get it up to the speed/RPM it happens and the disengage the clutch. That will tell you if it's the flywheel because it should stop when the RPM drops. If it's the driveline it will continue.

 

A flywheel wouldn't begin to vibrate only at higher rpms if it were loose or warped. You would have issues the moment you started your engine if that were the case.


Now my question to you is : What does a flywheel sound like when its vibrating?

 

The test you're suggesting will determine if the vibration is engine related or driveline related. It wont diagnose the flywheel as the cause of the issue.

 

I still think its a Flywheel, but it build vibration at 55k to 9 but anything lower than 5k its a normal drive... I do have some Solid mount waiting for install but that wont happen until I drop my Built motor this winter. and I am planning on dropping this motor into my lil brothers EK

 

Was their something suspect about the flywheel you installed on your engine? Did this issue happen all of a sudden or has it been present since you installed your clutch?

 

Why do you think its the flywheel? Sounds like there is something you're not telling us.