Single mass flywheel
Le Mans Master
Joined: Jul 2001
Posts: 8,183
Likes: 3
From: Santa Maria, CA
Re: Single mass flywheel (corvette90)
Hello.
I never found any company that had a single mass flywheel already balanced to our L98's. How would they know how to balance it? Here is what I did:
I took my DM to a machine shop with balancing capabilities and had them match the same amount of weight in the same location as the DM onto a camaro FW. The motor felt balanced after that, but recently that motor broke. So be careful.
[Modified by 89 Paul in Cal, 3:20 AM 5/5/2003]
I never found any company that had a single mass flywheel already balanced to our L98's. How would they know how to balance it? Here is what I did:
I took my DM to a machine shop with balancing capabilities and had them match the same amount of weight in the same location as the DM onto a camaro FW. The motor felt balanced after that, but recently that motor broke. So be careful.
[Modified by 89 Paul in Cal, 3:20 AM 5/5/2003]
Le Mans Master
Joined: Jul 2001
Posts: 8,183
Likes: 3
From: Santa Maria, CA
Re: Single mass flywheel (corvette90)
Well a piston broke and my main bearings looked really bad. I am pretty sure it was not my single mass but I just want to make sure you know what happen to me. Lots of forum members using single mass. I don't know how they balanced their SM FW to their L98. I hope some of those guys post here so I can know too.
Thread Starter
Burning Brakes
Joined: Nov 2000
Posts: 810
Likes: 4
From: Austria
Re: Single mass flywheel (89 Paul in Cal)
uh..that sounds bad :eek: but...i dont think too, that this is related to the FW. because i think wrong balanced FW destroyes the crank...
ok, hopefully somebody will chime in..
thanks
ok, hopefully somebody will chime in..
thanks
Instructor
Joined: Dec 2002
Posts: 116
Likes: 0
From: Long Island NY
Re: Single mass flywheel (corvette90)
Spec clutches sells what they claim is a balanced sigle mass aluminumm flywheel. I put one in my 91 coupe a couple of months ago. I have NO complaints whatsoever. Price was decent, customer service was great. Drop me an e-mail at ludachriss2@yahoo.com if you can't locate them on the web. I have the paperwork somewhere. Good luck :seeya
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Thread Starter
Burning Brakes
Joined: Nov 2000
Posts: 810
Likes: 4
From: Austria
Re: Single mass flywheel (Atok)
hi..ive checked the net so far..Doug Rippie sells a single mass flywheel assembly..for LT1and LT4
what i know is the bottom of the LT1 tha same as L98
do you agree???
Aluminum single mass...don´t know, what i´ve heard the cars get harder ti launch..
thanks
what i know is the bottom of the LT1 tha same as L98
do you agree???
Aluminum single mass...don´t know, what i´ve heard the cars get harder ti launch..
thanks
Team Owner
Joined: Aug 2000
Posts: 42,935
Likes: 20
From: Sydney, Australia
CI 6-7-8-9-10 Veteran
St. Jude Donor '07-'08-'09-'10-'11-'12-'13-'14-'15-'16-‘17, '22
Re: Single mass flywheel (corvette90)
Doug Rippie sells single masses for L98 too but as far as I know they are f-body flywheels machined down a touch. If I did a single mass conversion again I would go for an aluminium fw next time with a replaceable friction surface.
Whether you like the conversion or not depends on what you like in a car. You have to slip the clutch a bit more when taking off ordinarily but it's no biggie. As far as whether a single mass helps or hurts acceleration, I won't get into that debate. :)
If you do a search in the C4 tech archives you should find a bunch of stuff if you search under "single mass".
HTH
Whether you like the conversion or not depends on what you like in a car. You have to slip the clutch a bit more when taking off ordinarily but it's no biggie. As far as whether a single mass helps or hurts acceleration, I won't get into that debate. :)
If you do a search in the C4 tech archives you should find a bunch of stuff if you search under "single mass".
HTH
Drifting
Joined: Feb 2002
Posts: 1,952
Likes: 2
From: Little Rock Arkansas
Re: Single mass flywheel (Red 90 L98 Coupe)
If you've got a motor that doesn't turn real high or make in excess of 450 hp or so you can take the cheap route out... Go to GM and buy a flywheel for a 86-88 Corvette; it's a 153 tooth L98 piece, single mass for the 4+3 DNE trannys. Then go to RAM clutches and tell them you need a single mass clutch disk for your year Vette (the main diff is the disk's hub if I recall correctly). You can then either use your factory pressure plate (if it's in good shape) or buy a new one. Oh, you will also need a longer clutch fork pivot stud...That's it...Pretty simple.
-Jeb
-Jeb