Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

aluminum vs steel flywheel

Thread Tools
 
Search this Thread
 
Old 02-18-2013, 11:53 AM
  #1  
On The Tree
Thread Starter
 
sixt5's Avatar
 
Join Date: Sep 2010
Posts: 116
Likes: 0
Received 0 Likes on 0 Posts
Default aluminum vs steel flywheel

seen a lot of post and seems like everyone has different opinions.

using a mcleod RST clutch on a sub 3000 lb t56 car with a 9".

im going to be having traction issues cause i can only run a 255 tire. Ideas?
Old 02-18-2013, 12:04 PM
  #2  
On The Tree
Thread Starter
 
sixt5's Avatar
 
Join Date: Sep 2010
Posts: 116
Likes: 0
Received 0 Likes on 0 Posts
Default

Also , should I go steel or aluminum driveshaft
Old 02-18-2013, 02:13 PM
  #3  
12 Second Club
 
dailydriver's Avatar
 
Join Date: Sep 2005
Location: Bucks County, Pa.
Posts: 4,273
Likes: 0
Received 0 Likes on 0 Posts

Default

Most drag race peeps (and street) will tell you to go billet steel. Most road racers will suggest alloy as far as flywheels go.

High power, straight line, I would go with a cromoly driveshaft. For road racing I would go with a carbon fiber d.s. IF I could afford the coin involved.
Old 02-19-2013, 07:35 PM
  #4  
TECH Fanatic
iTrader: (7)
 
1981TA's Avatar
 
Join Date: Nov 2010
Location: Saint John, IN
Posts: 1,369
Received 5 Likes on 4 Posts

Default

Originally Posted by dailydriver
Most drag race peeps (and street) will tell you to go billet steel. Most road racers will suggest alloy as far as flywheels go.

High power, straight line, I would go with a cromoly driveshaft. For road racing I would go with a carbon fiber d.s. IF I could afford the coin involved.
Ditto that. I've got a lightened steel flywheel, aluminum pressure plate, and aluminum driveshaft in a street/road race focused car with 375HP/2850 Pounds/245-50-16s. I do not drag race the car.
Old 02-20-2013, 08:31 AM
  #5  
TECH Apprentice
iTrader: (1)
 
97FormulaWS-6's Avatar
 
Join Date: Jun 2011
Location: Land of the Mormon's although I'm not one of them
Posts: 314
Likes: 0
Received 0 Likes on 0 Posts

Default

Driveshaft, I honestly wouldn't worry about it too much. Just get a quality unit (I run a Denny's Driveshaft NR shaft, and recommend them highly).

As for the flywheel, it all depends on the car and use. There was a huge discussion about the differences and performance, handling, etc of them in a Monster Clutch thread relatively recently.
Old 02-21-2013, 12:16 PM
  #6  
Launching!
 
brigade24's Avatar
 
Join Date: Jun 2011
Location: Richmond, ON, Canada
Posts: 291
Likes: 0
Received 2 Likes on 2 Posts

Default

I run a lightened flywheel in my car...its the billet steel unit from monster (18lbs). def a quality piece but it depends what you're going to do. for road racing, lapping and autox...it may give you quicker acceleration but its not significant...many mix throttle response with acceleration so i'm not convinced that a lightened flywheel will make a difference given that it is a component that exists to take abuse.

if the objective is durability, reliability and driveability...don't go with a lightened flywheel.
Old 02-21-2013, 01:17 PM
  #7  
TECH Senior Member
iTrader: (8)
 
Blackpanther99's Avatar
 
Join Date: Sep 2012
Location: Baytown, TX
Posts: 6,963
Received 4 Likes on 4 Posts

Default

Aluminum- For street use and some good racing.
Billet steel- Serious and a lot of racing.
Old 02-25-2013, 03:01 PM
  #8  
TECH Enthusiast
 
usdmholden's Avatar
 
Join Date: Feb 2007
Location: Raleigh, NC
Posts: 625
Likes: 0
Received 0 Likes on 0 Posts

Default

I ran a SPEC aluminum flywheel and lightened pressure plate in my car for years. The car was 3040 lbs with me in it. It picked up 4 mph on my 1/4 mile trap speeds and had ZERO affect on my short times. Driveability around town was unaffected going from heavy flywheel/clutch to lightweight flywheel/clutch.

The effects of flywheel mass on launch are greatly exaggerated, and if you are tire limited, any theoretical gain from the increased angular momentum of the heavy parts will only hurt you when you spin the tires.
Old 02-25-2013, 03:09 PM
  #9  
TECH Senior Member
iTrader: (8)
 
Blackpanther99's Avatar
 
Join Date: Sep 2012
Location: Baytown, TX
Posts: 6,963
Received 4 Likes on 4 Posts

Default

Was there any big difference on the shifting?^
Old 02-25-2013, 03:25 PM
  #10  
TECH Enthusiast
 
usdmholden's Avatar
 
Join Date: Feb 2007
Location: Raleigh, NC
Posts: 625
Likes: 0
Received 0 Likes on 0 Posts

Default

No difference shifting that I can remember. I remember I really couldn't tell any difference at all while driving, except it had much better throttle response with the light flywheel and clutch.



Quick Reply: aluminum vs steel flywheel



All times are GMT -5. The time now is 08:19 AM.