S2000 Under The Hood S2000 Technical and Mechanical discussions.

Do flywheels make a good difference?

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Old May 16, 2007 | 08:36 AM
  #11  
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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/
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Old May 16, 2007 | 11:00 AM
  #12  
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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?

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Old May 16, 2007 | 11:52 AM
  #13  
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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.

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Old May 16, 2007 | 12:11 PM
  #14  
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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.
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Old May 16, 2007 | 12:31 PM
  #15  
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I have had the Toda for a number of years and am very happy with it. Would buy another if I needed a FW.
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Old May 16, 2007 | 10:05 PM
  #16  
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I rock the fidanzza 8lb FW, love it
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Old May 16, 2007 | 11:08 PM
  #17  
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If your rev match or heel toe, it makes it much easier and quicker with the "blip."
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Old May 17, 2007 | 07:39 AM
  #18  
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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
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