Lets talk Flywheels
Thread Starter
Racer
Joined: Apr 2006
Posts: 464
Likes: 0
From: Spartanburg SC
Better check compatibility of the 12" set-up with the aluminum wheel. Make sure the flywheel has the holes for the pressure plate in the correct location (they will be outboard of the 10.5 and 11 inch set-ups). You may be forced to get a Centerforce flywheel depending on compatibility....perhaps they sell an aluminum version.
Tony
Tony
Tech Contributor
Joined: Jan 2007
Posts: 19,458
Likes: 1,165
From: Dyer, IN
Better check compatibility of the 12" set-up with the aluminum wheel. Make sure the flywheel has the holes for the pressure plate in the correct location (they will be outboard of the 10.5 and 11 inch set-ups). You may be forced to get a Centerforce flywheel depending on compatibility....perhaps they sell an aluminum version.
Tony
Tony
Thanks,
Former Vendor
Joined: Mar 2004
Posts: 1,518
Likes: 7
From: Valencia CA
I'm curious Tony. The Textralia OZ700 assembly comes with a steel flywheel, and Centerforce recommends a steel flywheel with their dual friction assembly for high horsepower LS1's.....yet you recommend an aluminum flywheel. What do you know that the clutch manufacturers don't?
Thanks,
Thanks,
Barring that I have used my own car for some extensive clutch R&D for a local company (RPS clutchs), and with that ongoing project and all the clutchs I have personally been thru I have had no less than a dozen different set-ups in my car.
While that doesnt make me an expert....it certainly makes me more informed than the average enthusiast.
Tony
PS....Clutch's are very much a personal preference. My preference is for a lighter, low inertia assembly. More power to the ground, better engine response, doesnt hit the driveline as hard, easier to pull off a fast shift....I could go on but those attributes come to mind quickly.
Le Mans Master
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
Centerforce only sells a Dual friction in a 11" or 12", I have the 12" casue I plan on doing more mods later, I love the clutch and even tho its a bit heavier than the OEM clutch I noticed nothing different with revs/power loss
Tech Contributor
Joined: Jan 2007
Posts: 19,458
Likes: 1,165
From: Dyer, IN
[QUOTE=Tony Mamo @ AFR;1564474123]IMO clutch manufacturer's dont want to hear any of there unknowledgable end users complaining they cant just roll off the clutch pedal and go. For a clutch manufacturer its always a safer bet to recommend a unit with more inertia than less.
Barring that I have used my own car for some extensive clutch R&D for a local company (RPS clutchs), and with that ongoing project and all the clutchs I have personally been thru I have had no less than a dozen different set-ups in my car.
While that doesnt make me an expert....it certainly makes me more informed than the average enthusiast.
Tony
PS....Clutch's are very much a personal preference. My preference is for a lighter, low inertia assembly. More power to the ground, better engine response, doesnt hit the driveline as hard, easier to pull off a fast shift....I could go on but those attributes come to mind quickly.[/QUOTE
I certainly understand the horsepower loss, although you're not going to feel 10-12 rwhp loss. That being said, how many tenths did you pick up running an aluminum flywheel?
Barring that I have used my own car for some extensive clutch R&D for a local company (RPS clutchs), and with that ongoing project and all the clutchs I have personally been thru I have had no less than a dozen different set-ups in my car.
While that doesnt make me an expert....it certainly makes me more informed than the average enthusiast.
Tony
PS....Clutch's are very much a personal preference. My preference is for a lighter, low inertia assembly. More power to the ground, better engine response, doesnt hit the driveline as hard, easier to pull off a fast shift....I could go on but those attributes come to mind quickly.[/QUOTE
I certainly understand the horsepower loss, although you're not going to feel 10-12 rwhp loss. That being said, how many tenths did you pick up running an aluminum flywheel?
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
I don't know, a few guys who have installed the LS7 setup have complained that the car felt softer in the lower RPM. It may lose at the lower RPM where it is most noticeable. I have no idea what that number is though.
Last edited by vettenuts; Mar 10, 2008 at 11:36 AM.
Former Vendor
Joined: Mar 2004
Posts: 1,518
Likes: 7
From: Valencia CA
Lucky....
And for others questioning whether you would "feel it".....trust me its quite noticeable and changes the personality of the car (in a good way with a lighter lower inertia set-up).
Check the comments and dyno graph in this thread....
http://www.ls1tech.com/forums/showth...084&highlight=
Enjoy....
Tony
And for others questioning whether you would "feel it".....trust me its quite noticeable and changes the personality of the car (in a good way with a lighter lower inertia set-up).
Check the comments and dyno graph in this thread....
http://www.ls1tech.com/forums/showth...084&highlight=
Enjoy....
Tony
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Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Probably also worth noting that GM went dual disc/low inertia on the new ZR1. One of their reasons was the lower inertia and faster spin-up of the drive train. Wonder if that will fit our cars? Hmmmmm. 
I went with billet steel after examining all the weights of the aftermarket clutches (there were other factors as well). I looked hard at aluminum but was concerned about the other half driving the car so I went in between with the billet steel Textralia. While not as light as aluminum, it is a full 6 lbs lighter than the stock one I pulled out. I have driven the aluminum on the street and once you get used to it then I didn't find it particularly hard to drive. Of course it was someone else's Vette that he let me try out so I was being very careful with it
I went with billet steel after examining all the weights of the aftermarket clutches (there were other factors as well). I looked hard at aluminum but was concerned about the other half driving the car so I went in between with the billet steel Textralia. While not as light as aluminum, it is a full 6 lbs lighter than the stock one I pulled out. I have driven the aluminum on the street and once you get used to it then I didn't find it particularly hard to drive. Of course it was someone else's Vette that he let me try out so I was being very careful with it
Thread Starter
Racer
Joined: Apr 2006
Posts: 464
Likes: 0
From: Spartanburg SC
Centerforce actually states that an aluminum flywheel with a steel heat surface, such as the fidanza flywheel will work.
Can anyone verify that the fidanza aluminum flywheel will work with the Centerforce DF clutch?
Can anyone verify that the fidanza aluminum flywheel will work with the Centerforce DF clutch?
Former Vendor
Joined: Mar 2004
Posts: 1,518
Likes: 7
From: Valencia CA
http://www.fidanza.com/Contact.aspx
PS....Bob....I hate to say it but you should have went aluminum
Last edited by Tony Mamo @ AFR; Mar 10, 2008 at 03:05 PM.
Thread Starter
Racer
Joined: Apr 2006
Posts: 464
Likes: 0
From: Spartanburg SC
Only one way to find out....
http://www.fidanza.com/Contact.aspx
PS....Bob....I hate to say it but you should have went aluminum
Melting Slicks
Joined: Nov 2007
Posts: 2,780
Likes: 934
From: Indianapolis IN
Agreed. I like the CF DF so much (I had one in my '03 Cobra) I took out the Spec Stage 3+ that was in the Z when I bought it and replaced it with a new CF DF 12" and CF steel flywheel. I personally like the higher inertia of the steel flywheel for my car. It is not a race car, just a pleasant day, weekend toy and the steel flywheel makes parking lot negotiating a bit easier.
Pro
Joined: Jun 2007
Posts: 565
Likes: 0
From: Ft. Bragg, NC
so is it necessary to get the fidanza flywheel balanced with the CF DF clutch even though they will bolt right up to each other?
Thread Starter
Racer
Joined: Apr 2006
Posts: 464
Likes: 0
From: Spartanburg SC
I cant find a local shop to balance them, so what should I do?
Last edited by Ilovechevymusclecars; Mar 10, 2008 at 03:38 PM.
Racer
Joined: Oct 2003
Posts: 377
Likes: 2
From: Palm Beach Gardens FL
Only one way to find out....
http://www.fidanza.com/Contact.aspx
PS....Bob....I hate to say it but you should have went aluminum
http://www.fidanza.com/Contact.aspx
PS....Bob....I hate to say it but you should have went aluminum
Thread Starter
Racer
Joined: Apr 2006
Posts: 464
Likes: 0
From: Spartanburg SC
Some cars that are heavier and have less torque need the heavier flywheel's inertia for off of the line acceleration. I think that the torquey and lightweight corvette doesn't require it.
The heavier steel flywheel aids in launching at a lower rpm, but slows down acceleration after the launch. The aluminum flywheel will have to be revved higher to launch well, but will provide quicker revs and hense quicker acceleration.