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Yay or Nay? Lightened Flywheel in a Turbo drag car?

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Old Feb 2, 2003 | 12:19 AM
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Default Yay or Nay? Lightened Flywheel in a Turbo drag car?

Alright, I'm pieceing together my new drag car, and keep debating with myself over this topic. Here's each side:

<u>Yay:</u> A lighter Flywheel will allow the engine to rev more freely, and you'll go through the gears faster. Acceleration is improved, and this is what the 1320 is all about. Also allows quicker spool time.

<u>Nay:</u> Too much time is lost in high power FWD cars during shifting if you lighten the rotating assly. The revs will drop and you'll be that much more out of the powerband.

What's the deal?
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Old Feb 2, 2003 | 12:30 AM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (Shiroi Hakucho)

Stick with the heavier flywheel. Makes for more consistant launces and the inertia of the weight in the wheel on the top end will actually help keep the car in motion and pull a little harder. A lighter flywheel does help get it into gear easier though. It suggest the 12 pound act flywheel. Dont go for those 8 pounders.
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Old Feb 2, 2003 | 12:39 AM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (ninesecrx)

12lbs, eh? Is that not pretty light as it is? I've owned an 8lb Aluminum FW in the past, and it didn't really wear well, and the aluminum doesn't stand up to abuse too well, it's too maliable.

Isn't stock weight around 24lbs?
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Old Feb 2, 2003 | 01:52 AM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (Shiroi Hakucho)

Stocks like 18 pounds. The New act's are chromolly...the aluminim ones suck...esp in high hp cars. After a couple of passes we pull them out and they look like crap. 12 pounds is good.
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Old Feb 2, 2003 | 05:49 AM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (ninesecrx)

I have a stock one that we lathed down to 13.5lbs. works great so far, much easier to launch that my friend's 8lb unit.
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Old Feb 2, 2003 | 11:40 AM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (Jared)

Stock type R flywheel is what I use. It's not to light and not too heavy.
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Old Feb 2, 2003 | 07:46 PM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (Shiroi Hakucho)

From what I've heard, turbo's like heavy flywheels and tall gears as they are load dependant. I'd say use the heavier flywheel for consistancy, smoothness and quicker spool time(questionable).
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Old Feb 2, 2003 | 09:42 PM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (poop)

what about all the double disc clutches??you have no choice but to run the super light 6-8 lb flywheel. i personally loved the type r flywheel. i believe it was 14lbs. the car had more torque and better traction with it.
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Old Feb 2, 2003 | 10:59 PM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (MotorMatrix.com)

but there is extra discs involved with a twin disc that makes it heavier. That statment is only true when talking about Tilton. If you ran a McLeod twin disc they would tell you they want to have it made with a heavy flywheel.
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Old Feb 2, 2003 | 11:08 PM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (ninesecrx)

I'm not sure if my clutchmaster double disc is heavier. it is only a 9 inch clutch assembly. I think my full assembly with pressure plate was lighter than the act assembly being that it smaller diameter. I'm not positive though.
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Old Feb 2, 2003 | 11:16 PM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (MotorMatrix.com)

I forget...When we had the CM twin disc, I think it weighed almost just as much as a 8 pound wheel and single disc. CM is a joke. They dont even make those. It is made by (fill in the blank). We have broke that clutch more then once.


[Modified by ninesecrx, 8:17 AM 2/3/2003]
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Old Feb 2, 2003 | 11:19 PM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (ninesecrx)

who makes it?? my guess is unorthodox. i got it from frank at sfp. he put 750 hp to it for 3 events and didnt have any trouble with it. I have put 500+ to it but not out of the hole racing. all 40mph up races.
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Old Feb 2, 2003 | 11:29 PM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (MotorMatrix.com)

Im not gonna tell because its unethical but its not Unorthodox. Im sure lots of people have had success, but id run a heavy duty ACT clutch before id run a CM twin disc.


[Modified by ninesecrx, 8:31 AM 2/3/2003]
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Old Feb 3, 2003 | 01:30 PM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (ninesecrx)

This is the same question I was going to ask. I've got a Clutchmasters Stage 4 clutch sitting here, as well as a Fidanza Flywheel ready to go in my Turbo ITR. Should I just sell off the flywheel and run the stock ITR Flywheel? I'll be putting down approx. 300whp this season just FYI.
Thanks.
M
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Old Feb 3, 2003 | 07:52 PM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (01ITR#700)

I have a 9 lb fidanza in my 95 turbo accord and love it! I say go with it! The car does accelerate alot quicker and is plenty fast enough till about 115mph. You do notice it is harder to accelerate fast at speeds higher anything over 115. i don't know about you but I'm a light to light guy, not a top end speed junky!


[Modified by forcedaccord95, 4:53 AM 2/4/2003]
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Old Feb 4, 2003 | 01:41 PM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (forcedaccord95)

Much like fidanza makes flywheels for numerous companies to relable, clutchnet makes clutches for some companies to relabel. I'm not saying I'm sure it is clutchnet though, there was a time when I remembered who made what for who but that time has come and gone.
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Old Feb 5, 2003 | 01:32 AM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (trbob16a)

I dont think clutchnet makes clutches for anyone. Their pressure plate is just doubled up with veleo fingers and ive never seen anyone else use these. As far as their discs go, I know other companies have very simular stuff but ive never seen them sell those to other companys as well. Clutchnet has their own flywheels made.
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Old Feb 5, 2003 | 07:07 AM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (Shiroi Hakucho)

for boosted application use the heaviest stock flywheel (I found the b20b/z to be the heaviest) ... dyno proved this to show a relative good increase in TQ as well when compared to the aluminum CM one ... did this years ago on my old turbo FROG car.

greg
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Old Feb 5, 2003 | 10:22 AM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (CHEETAH)

still nothing you can do when you have a double disc clutch?? they all come with an extemely light flywheel.
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Old Feb 5, 2003 | 10:42 AM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (MotorMatrix.com)

still nothing you can do when you have a double disc clutch?? they all come with an extemely light flywheel.
Not true...invest in a McLoed twin disc clutch and they well TELL you to set it up with a heavy flywheel and you have the option of any weight you want. Once again, the only problem with the extra weight is being hard on shifts cause of the extra weight. Sometimes makes it hard to get into gear in high revs.
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Old Feb 5, 2003 | 01:02 PM
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Default Re: Yay or Nay? Lightened Flywheel in a Turbo drag car? (ninesecrx)

hey mike, how much torque can that clutch hold?
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