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Thread: Light weight Flywheel?...
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05-20-2008, 07:34 PM #1
- Join Date
- Jun 2006
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- Ft. Lee, Virginia
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- 374
Artic White- 2001 Chevy Camaro SS
Light weight Flywheel?...
I was wondering how many of you guys have them, and what kind of difference does it make overall? Looking into getting one soon... Any advice is appreciated.
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05-20-2008, 09:19 PM #2
When I first got mine, it was weird getting going from a stop. The car stalled alot easier becuase the flywheel had so much less momentum at whatever rpm you launch at. Thats my only complaint. Once you actually get going though the car revs noticeably faster.
Most people prefer the lightweight for twisty racing and the heavy flywheel for drag racing. I never really race except for the occasional straight race but I would actually prefer the lightweight one now.
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05-21-2008, 05:32 AM #3
I have the lightweight flywheel in my wifes car,,,but it was intalled for a different reason than most here would think of.
A local shop here was the only place in town that would machine flywheels, and they went out of business. I wasn't driving 50-60 miles to get a flywheel machined so I ordered a Fidanza aluminum flywheel.
Makes clutch jobs much easier and faster now. I can simply remove the steel insert and replace with new,,,and it's done.
No more going accross town to machine flywheels,,,waiting sometimes most of the day to get it back,,,turning a clutch job into a 2 day affair,,,screw that.
Now I have the job done in 3-4 hours simply swapping the steel insert right on the spot and reassemble with new clutch
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05-21-2008, 10:44 AM #4
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05-21-2008, 10:45 AM #5
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05-21-2008, 11:08 AM #6
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05-21-2008, 11:11 AM #7
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05-21-2008, 11:21 AM #8
Naaa, $800 would do the entire clutch setup with everything new.
If you do an internet search for Fidanza flywheels, you'll find them. They are made for both the LS1 and LT1 and various other cars.
I think you can even find them sold new on Ebay. I got turned onto them years ago because it's what a local 4th gen shop here uses on all their builds.
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05-21-2008, 11:25 AM #9
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05-21-2008, 02:23 PM #10
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05-21-2008, 02:24 PM #11
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05-21-2008, 02:31 PM #12
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05-21-2008, 02:37 PM #13
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Silver- 2003 GTI 1.8T :(
yeah you want a heavier flywheel so when you shift you keep the momentum going
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05-21-2008, 11:01 PM #14
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05-21-2008, 11:41 PM #15
- Join Date
- Jun 2006
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- Ft. Lee, Virginia
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Artic White- 2001 Chevy Camaro SS
Now I'm leaning more to keeping my stock flywheel, if a lighter flywheel sacrifices performance on the strip, I'd rather stay with the stocker.
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05-22-2008, 06:21 AM #16
Well it doesn't necessarily sacrafice performance at the strip. There are other thing to take into consideration.
Having a hard time taking off because you have lightened the flywheel can be compensated in many ways.
Taking into account the ratio of 1st gear in the trans coupled with the rearend gear will give you an idea.
With the stock 2.66 first gear in the 6 speed and a stock 3.42 rearend gear,,,then installing an aluminum flywheel with less momentum can possibly make it more difficult to get the car rolling,,,,I personally have not noticed any difference in day to day drivability,,,and my wife drives it 99% of the time without complaints, and still running stock 3.42 gears.
You can compensate for this with more rearend gear though if it's a problem,,,something most people do anyway even with the steel flywheel...
The engine in theory should accelerate faster throughout the rpm range due to less recipricating weight. This should far outweigh any disadvantage of rpm recovery during upshifts.
Again I have not noticed any ill affects here either.
Generally speaking, as far as drag racing is concerned,,,,The biggest reason competetive racers go with a heavy steel flywheel is when you are dealing with a very heavy car and/or a small cubic inch, very highstrung motor that has no low end torque, so you can get the car moving easier,,,coupled with alot of rearend gear,,,,the lighter the car or the more low end torque the engine makes,,,,the less of a concern it is.
Quite frankly I can't even tell it's in the car,,,and a stock LT1 isn't exactly a powerhouse as far as I am concerned.
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05-22-2008, 01:29 PM #17
i have a fidanza alum fly wheel and its worth every .01 if u ferr rev the tack cant keep up, u will be hitthing rev limmiter and the tack is only at 4k thats no bull shit. at the strip i ran a 12.9 with a lid and catback on street tires. its harder to find the rpm to drop it from to get it to hook and go but once u do get going its like a bat out of hell im traping 109-112 in the 1/4 with a 2.01 60ft and i only make 345hp to the wheels full car leather seats. and all
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05-22-2008, 04:37 PM #18
- Join Date
- Jun 2006
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- Ft. Lee, Virginia
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Artic White- 2001 Chevy Camaro SS
Well firebird, eventually I want to upgrade the rear end, i'm pretty much sure the stock one won't hold up when I start going to the track. So, basically I would have to configure both the gears in the rear and get my tranny built to get this thing running right?...
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05-22-2008, 05:36 PM #19
Well,,,,I was giving an extreme case example. If I even thought for a second that it would cause drivability problems I wouldn't have stuck one in my wifes car. God knows I'd never hear the end of it
In all honesty though, it's a common upgrade when a clutch job is done, even for the stock or slightly modified cars. Most people won't notice such a small difference in flywheel weight in day to day driving, my wife didn't notice a thing.... I've raced the car both with and without this flywheel, and noticed no ET or MPH difference at all. We are talking about a stocker though.
Even with the 3.42 gears, it takes off from a stop just fine. I only installed it for the reasons I explained before, simply makes the clutch jobs quicker. I order a new steel insert along with the new clutch kit and it's all installed in one shot, then you're done.
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05-22-2008, 09:51 PM #20
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