C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Lightweight Clutch setups...

Thread Tools
 
Search this Thread
 
Old Mar 22, 2016 | 11:32 AM
  #1  
Johnny wangwang's Avatar
Johnny wangwang
Thread Starter
Burning Brakes
 
Joined: Aug 2010
Posts: 1,051
Likes: 54
From: Raleigh NC
Default Lightweight Clutch setups...

So I have a brand New LS7 Clutch at this point and was looking to lighten it up. Apparently the lightest flywheel made for that setup is a Fidanza 12.5lb flywheel. After doing the math that would put me at like 7lbs lighter then a stock C5z Setup. For $400 for the flywheel it doesn't really make sense for me to invest in something that will save me 7lbs and cost that much. I can take that $400 and apply it towards a real clutch setup. So...Im curious if any of you have weighed your after market clutch setups. Im looking for the lightest for the money. Im not a drag racer. At this point im looking for the best throttle response all motor (Prob around 440whp with a cam). Any suggestions?
Reply
Old Mar 22, 2016 | 12:13 PM
  #2  
Bill Curlee's Avatar
Bill Curlee
Tech Contributor
Supporting Lifetime Gold
Veteran: Navy
25 Year Member
Liked
Community Favorite
 
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Default

NOTE! A very light flywheel will cause a very erratic idle. Especially if you have a BIG CAM. Trust me..

I have a SPEC Clutch and the mass is a lot less than a standard FW. Learning to move the car from a dead stop is different.
Reply
Old Mar 22, 2016 | 12:18 PM
  #3  
StingrayRebel's Avatar
StingrayRebel
Acct Suspended APR 2026 by request
 
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
Default

I have an act twin disc and I believe that setup is roughly 10lbs lighter overall compared to the stock c5 clutch/flywheel... I have a medium size cam and it's no problem taking off from a light, idling, or slowing down, but it will buck a little bit when creeping slowly like in a parking lot or heavy traffic... if you do get a lightened flywheel stick with steel, aluminum will warp much easier when exposed to heat... here's some pics of it before I installed it








Last edited by StingrayRebel; Mar 22, 2016 at 12:22 PM.
Reply
Old Mar 22, 2016 | 12:22 PM
  #4  
Johnny wangwang's Avatar
Johnny wangwang
Thread Starter
Burning Brakes
 
Joined: Aug 2010
Posts: 1,051
Likes: 54
From: Raleigh NC
Default

Yeah Ive owned cars with 8.8lb flywheels. So im versed in how drivability changes. I probably wont even go with huge a cam as I may just build a simple single turbo kit around either the stock Z cam or mild boost cam. But at that point id probably switch back to a heavy clutch setup. I just want something super light for while im N/A.
Reply

Get notified of new replies

To Lightweight Clutch setups...





All times are GMT -4. The time now is 07:55 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE