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- - OEM flywheel alignment pins (https://www.ft86club.com/forums/showthread.php?t=134948)

OEM flywheel alignment pins

Will a stock flywheel allow you to install a pressure plate in the wrong orientation? I recently did an Exedy stg 1 kit and have way more harmonic resonances transmitted from the engine to the driveline now than I think I should. I read in various forums for other subarus about looking for the alignment marks to prevent being out of alignment by 120 degrees.

Heavy throttle under 2k results in basically everything in the car finding its resonant frequency. I know that driving like that is not ideal, but there was none of that prior to the clutch install.

I don't see anything related at the attached instructions. In general Exedy stage 1 & 2 kits are for performance oriented applications. If you are daily driving the car and you are worrying about NVH, then you should better go for the OEM solution.

I have an Edelbrock on the car, when I hit peak torque the revs would climb and the car wouldn't accelerate, hence the change to the stage 1.

I understand getting more NVH going to a heavier clutch, this just seems rather excessive for something that is still a sprung full-face disc and a pressure plate that is still light enough for me to not run the helper spring on the clutch pedal. If this is what results, so be it, just wanted to verify there isn't something going on that I could fix easily.

Is it fine above 2k rpm?

If the clutch was poorly balanced or out of alignment you would it to get much worse with revs.

I am not sure why you would be using big throttle with load on the motor at such low rpm. My guess is it will be tune related or perhaps the extra load a supercharger adds causing the motor to lug.

I have a light flywheel, trd engine and gearbox mounts and i can tell you our motor is not happy below 2k with much more than half throttle with those mods.

Quote:

Originally Posted by toast (Post 3222180)

I just had my clutch replaced south end stage 2 and I have the sprintex 210 kit and kinda noticed the same thing. Right at the rpm you mentioned if I am lugging the engine a bit. Pretty sure based on this it's normal. I will do some testing for you and report back. Everything else seems perfect with my new clutch. Less than 100 miles atm.

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Quote:

Originally Posted by jflogerzi (Post 3222455)

You get a decel hum from 3k down to 2k as well?