Light weight VS heavy flywheel
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
I had a 15 Lb FW and we/Ol'RJ could not tune out a slight studder that would oocur at the same RPM, every time when slowly going up thru the RPM range..
I put the heavier 30 lb FW in and the studder went away, we found this out accidentallyy, but realized it after the studder went away.
interesting
I put the heavier 30 lb FW in and the studder went away, we found this out accidentallyy, but realized it after the studder went away.
interesting
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Originally Posted by tpi 421 vette
One thing that helps SM gear rattle is raising your idle rpm if possible. It gets better with a higher idle around 900+ rpm. Also... for some reason, the dual discs don't seem to have the gear rattle the single discs have.
Some good info Josh
Some good info Josh
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Originally Posted by bogus
I wonder if it's because they weigh more.
It also creates a bit more drag on the bearings in the tranny, that may help.
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Originally Posted by LT1vette
What is the difference between a blue and black tag?
Black tag...single mass clutch Blue tag....dual mass clutch?
Black tag...single mass clutch Blue tag....dual mass clutch?
the black tag was the original, 1989-1993E. Made in West Germany by ZF.
Blue tag, made in Alabama, came on line in mid-1993, through 1996.
The difference with the blue tag is the lower gears are not as straight cut. Also, the torque rating dropped from 450 to 400.
The result is that the blue tag is that it's quieter...
All ZFs use the DM.
Remember, the DM is also the external balance for the engine.
Drifting
Joined: Aug 2000
Posts: 1,614
Likes: 0
From: Colleyville Texas
Good article. Thanks for posting.
Very happy with the SM Camaro Flywheel and Mcleod stage 4 ( Bronze Pucks) clutch in my 396 LT1. Been driving on the street and to the track for six years with this set up. The Camaro flywheel weighs 22 LBS so its about 18 LBS less than the DM. It is cast steel. When balanced properly it is not much louder than the DM in normal driving. Yes, it is noisy with the clutch out in neutral. Setting my idle at 1000 RPM's did minimize the noise.
With the Power Effects exhaust open, headers and off road pipes on, the SM flywheel noise is not even an issue.
Very happy with the SM Camaro Flywheel and Mcleod stage 4 ( Bronze Pucks) clutch in my 396 LT1. Been driving on the street and to the track for six years with this set up. The Camaro flywheel weighs 22 LBS so its about 18 LBS less than the DM. It is cast steel. When balanced properly it is not much louder than the DM in normal driving. Yes, it is noisy with the clutch out in neutral. Setting my idle at 1000 RPM's did minimize the noise.
With the Power Effects exhaust open, headers and off road pipes on, the SM flywheel noise is not even an issue.
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Originally Posted by bogus
The difference with the blue tag is the lower gears are not as straight cut. Also, the torque rating dropped from 450 to 400.
So which unit is this one?
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