Spec Stg. 3 Clutch and Findaza Flywheel

[screaming240sx]

I just purchased and installed a Spec stage 3 clutch and a findaza aluminum flywheel. My problem is the setup vibrates, BUT only when completely off the throttle between 1900 - 2400 rpm.:wtf: Nothing is wrong at any other rpm's or partial or full throttle. It stop instantly when i press on the gas or push in the clutch. I have checked the drive shaft bolts and found nothing loose of off center. I would know if it was vibrating all the time what it would be but since it is such a narrow range of circumstances, I am confused. Any thought as to what it may be?:bash:

[WILDACEX187]

can it be the t/o bearing? did u torque everything down to spec? from 1-10 how heavy is the vibration?

[screaming240sx]

new t/o bearing press on by my dad (mechanic for industry)
1st gear- .5
2nd gear- 2.5
3rd gear - 4
4th gear- 7.5
5th gear- 1
:wtf:
bought torque wrench for project so yes to spec

[Spdrules5]

Before installation, did you have the flywheel and clutch assembly balanced together? You would notice unbalance more with a lightened flywheel.

[screaming240sx]

No, I did not have the assembly balanced. I did not know that i should have.
What should I do. Should I torque the clutch to the flywheel then have it balanced?

[OptionZero]

unbalanced drive shaft?

[ManoNegra]

What brand torque wrench did you use?

Off topic: I'm about to purchase a clutch and it seems to me that for the cost of a clutch kit and light flywheel why not go with a Blitz Active Clutch?

[Spdrules5]

unbalanced drive shaft?
Could be a bad carrier bearing. Fairly easy fix if it is. Check the driveshaft for excessive play.