ACT 2600/flywheel install, growling on decel

[mach1one]

My friend and I installed an act 2600 w/ streetlite flywheel yesterday. I started driving it today and I drove about 20 miles each way on the interstate (kept it under 3k).

Anyway, towards the end of the trip, I noticed a noise whenever I left off the gas. It sounded like a growling or similiar coming from the engine, and was more pronounced towards the end of the trip. It's definately not a whine coming from the rear. It's not really noticeable as you're basically idling along, but as you gain some speed you can definately hear it.

We put in 1 QT of syncromesh and about .66 quarts of the lucas stuff since they only had one bottle of syncromesh. Manual said tranny holds about 2.


Any ideas on what it could be?

 

[BoredOutaMyMind]

i wouldnt use the clutch transmission to slow down for quite a few more miles until the clutch is broken in properly, just what i would do

 

[mach1one]

cool I added an extra quart of fluid, but it didn't seem to help. I'll quit using the tranny to slow down for awhile.

 

[trancEclipse]

It could be because of your flywheel. You have less rotating mass and if you use your gearbox to decelerate you are going to slow down faster which will creating a faster pitch change as your rpm's decline.

Edit: In fact after reading your post again I am pretty sure it is your new flywheel. Very light flywheels are not very comfertable for street applications because of what I said above. ^^