TURBO: Stock Flywheel vs. 8lb Lose Torque?
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TURBO: Stock Flywheel vs. 8lb Lose Torque?
Ive noticed since running this 8lb flywheel on my setup, the torque and pull of the last two motors sucked balls compared to my last setup with a stock flywheel. My last setup was 2.0 liters with a stock flywheel, and my last two have been 1.8's with the 8lb flywheel. Im sure the difference cant be just .2 liters, Ive ran the same 57 trim .60 ar turbo on all 3 motors. Ive always had the idea in the back of my head, and Ive had a couple friends mention it to me recently.
Does a lightened flywheel on a turbo car REALLY cause a loss of torque? Anyone actually compared the two on a similar setup? Im leaning towards the idea of putting the stock flywheel back on, and getting rid of the 8lb.
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Does a lightened flywheel on a turbo car REALLY cause a loss of torque? Anyone actually compared the two on a similar setup? Im leaning towards the idea of putting the stock flywheel back on, and getting rid of the 8lb.
Opinions?
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i red some where that it did i cant remmber y thought something to do less mass. not sure though
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I think its just in your head because the car moves easier off the line/low end
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from what i have heard\understand lightweight flywheel are best for n\a cars. reason being you want to get up in rpm's in a n\a car and stay up there. lightweight flywheels are not too good for forced induction cars (mainly turbo) cause you want to build boost with the lightweights you will get up in rpm quickly and out of the gear quicker and not have all the potential to hit full boost.
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It would help if you search for a tech article myself or someone posted on here about lighter flywheels. Basicly a lighter flywheel with an under powered car has a chance to bog the motor down from a lower RPM. It makes it more difficult to spin the wheels. I woulnd't really get a lighter flywheel unless I was having problems with wheelspin.
(From: http://www.ramclutches.com/Products/flywheels.htm )
Basicly, if you make a lot of torque down low, a lighter flywheel is for you.
If you make your torque higher in the RPM range - it might not be the best idea. A mostly track car will do fine with a light flywheel, because they can always rev the engine up to where it makes the ideal torque to launch the car without bogging. However it will suck on the street, because of the possibility of the car not being able to take off from a light, or roam around town.
However, the car will feel more "nimble" because once you get up in the RPMs it's easier to stay there.
The flywheel is the foundation of the clutch system, and because it is an energy storage device, also determines the amount of power available to launch the car. A heavy flywheel stores more energy as it spins than a light flywheel. If your engine and gearing combination requires more power or inertia to make the car launch without bogging the motor, you will want a heavier flywheel. Keep in mind, though, that a heavier flywheel will be slower to accelerate through the gears. A lighter flywheel creates less inertia at launch, but will accelerate quicker through the gears. In order to effectively use a lighter flywheel, you must consider the car weight, operating RPM of the engine, and most importantly, the gearing. Too little gear will cause the engine to nose over or �bog� on launch.
Basicly, if you make a lot of torque down low, a lighter flywheel is for you.
If you make your torque higher in the RPM range - it might not be the best idea. A mostly track car will do fine with a light flywheel, because they can always rev the engine up to where it makes the ideal torque to launch the car without bogging. However it will suck on the street, because of the possibility of the car not being able to take off from a light, or roam around town.
However, the car will feel more "nimble" because once you get up in the RPMs it's easier to stay there.
Last edited by Cronic; 03-08-2006 at 04:55 AM.
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I just switched over to the lightweight flywheel, and Im not too sure how I like it yet... Couple more days should tell...
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