S2000 Under The Hood S2000 Technical and Mechanical discussions.

Do flywheels make a good difference?

Thread Tools
 
Old 05-16-2007, 08:36 AM
  #11  
Registered User

 
overst33r's Avatar
 
Join Date: Dec 2006
Location: Palm Harbor, FL
Posts: 1,174
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by nearwater4me,May 16 2007, 08:04 AM
I heard some people say that you lose high end w/ lighter flywheels.
Why is that?

Dan
Actually it's the other way around, in most cars you LOSE low-end torque and GAIN top-end horsepower.

This article will expain most of your inquiries.

http://www.europeancarweb.com/projectcars/...lutch_flywheel/
Old 05-16-2007, 11:00 AM
  #12  
Registered User

 
SpitfireS's Avatar
 
Join Date: Jan 2006
Location: 17 ft below sea level.
Posts: 4,949
Likes: 0
Received 21 Likes on 16 Posts
Default

The OEM F20 flywheel is about 14 lbs.
The Comptech FW is about 9.5 lbs.
There have been reports that with such a lightweight flywheel the engine "dips" less when you press the clutch at idle and the revs climb a bit quicker to normal idle too.
Not much difference in normal driving.

I'm looking forward using my Comptech FW + ACT PP with the 4.57's.
I will post my experiences.
The old clutch is still working, so it may take a while.

Lsos Posted on May 16 2007, 04:14 PM
However, when accelerating we musn't forget that besides a ~7lb flywheel, the engine also has to accelerate a ~3000lb car. A few pound reduction in a flywheel is not going to do much to that end.

Most of the energy the engine is producing is used to accelerate the car, not the flywheel.
Heel & toe throttle blips to rev match may be easier?

Old 05-16-2007, 11:52 AM
  #13  

 
stphotographer's Avatar
 
Join Date: Oct 2002
Location: Los Angeles
Posts: 1,527
Likes: 0
Received 1 Like on 1 Post
Default

Don't forget the the AP2 has a slightly heavier OEM flywheel at 18-19 lbs.

You will feel a loss on the low end when your coming off the line with a light flywheel. If this car is your daily driver and you do a lot of stop and go driving I wouldn't recommend anything lighter than the Comptech flywheel.

I drove a s2000 with the Toda flywheel which is around 7-8 lbs. and I stalled it several times going around the block.

Old 05-16-2007, 12:11 PM
  #14  
Moderator
Moderator
 
Saki GT's Avatar
 
Join Date: Jul 2004
Location: Queen City, NC
Posts: 35,993
Received 215 Likes on 148 Posts
Default

Originally Posted by Ztopgun28,May 16 2007, 03:45 AM
If so, what would be the best weight flywheel for my mod setup? I/H/E only
The flywheel operates with the principles of inertia - heavier flywheels are slower to change speeds, thus, it effects how fast or slow the rpms rise and fall - when you simply press the gas pedal, when you engage the clutch, etc., a heavier flywheel will slow the rate of increasing and decreasing rpms. This can be a good thing when you want to keep rpms from dropping out of the power band too quickly.

If you have nothing but I/H/E and don't need to replace your clutch, don't worry about your flywheel. If you are getting ready to replace your clutch, you may want to think about a heavier or lighter than stock flywheel. How you drive your car would dictate this, but if you're just tooling around, you might as well get OEM imo.
Old 05-16-2007, 12:31 PM
  #15  

 
cdelena's Avatar
 
Join Date: Oct 2000
Location: WA
Posts: 9,210
Received 7 Likes on 7 Posts
Default

I have had the Toda for a number of years and am very happy with it. Would buy another if I needed a FW.
Old 05-16-2007, 10:05 PM
  #16  

 
4bang6's Avatar
 
Join Date: Feb 2005
Location: Florida
Posts: 1,113
Likes: 0
Received 3 Likes on 3 Posts
Default

I rock the fidanzza 8lb FW, love it
Old 05-16-2007, 11:08 PM
  #17  
Former Moderator

 
CKit's Avatar
 
Join Date: Aug 2004
Posts: 14,730
Likes: 0
Received 8 Likes on 8 Posts
Default

If your rev match or heel toe, it makes it much easier and quicker with the "blip."
Old 05-17-2007, 07:39 AM
  #18  
Registered User
 
TrackStar's Avatar
 
Join Date: Jan 2004
Location: Franklin Lakes
Posts: 2,988
Likes: 0
Received 3 Likes on 2 Posts
Default

Originally Posted by CKit,May 17 2007, 02:08 AM
If your rev match or heel toe, it makes it much easier and quicker with the "blip."
That's the real reason for this mod. I love my Comptech
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
oyitzpreston
S2000 Modifications and Parts
13
03-26-2009 11:40 AM
JoeyBalls
S2000 Forced Induction
33
01-24-2009 05:19 PM
waytooslow
S2000 Forced Induction
6
05-08-2007 06:39 AM
zero_to60
UK & Ireland S2000 Community
4
01-08-2003 04:50 AM
mt2000
S2000 Under The Hood
37
01-22-2001 01:41 PM



Quick Reply: Do flywheels make a good difference?



All times are GMT -8. The time now is 03:05 AM.