FrestyleFC3S

if i put in a 1000 lb flywheel id have torque out the wazooooo

Dramon_Killer

One thing is though it doesn't matter how much torque you have if youdon't know how to use it. You go out on the streets asking this same question and i bet you'll get the response "its not how you stand by your car, its how you race your car.'



Meaning, its doesnt matter how you stand by your car, what matters is how well you race it.

Redwood

Out there on the mean streets, right?



Moving on...



The flywheel comment is valid, though I wouldn't suggest it. If you DID have a 1000 lb flywheel and got it up to speed, it would have so much rotational inertia that it be immediate power as soon as the clutch engaged. It's all about that potential energy thing. Of course, you'd proabably spend about 20 minutes getting it up to speed each time and you'd have an extra 1000 pounds.



Be cool to try something like this and I heard it's been done to an extreme, but I've never seen it.



Redwood

Mazderati

Not at all. :]



Rotational Inertia

pengaru

yes, I understand rotational inertia, it does not increase the torque of your engine.



the effect of a heavier flywheel is easier starts from a standstill, less likely to stall the engine. Once your clutch is fully engaged, and your tires have full traction, all advantage of whatever rotational inertia your flywheel has is lost and suddenly you have more rotational mass to accelerate with the available torque of your engine.





you want more torque available at your wheels to accelerate the mass of your car?



GET A LIGHTER FLYWHEEL

Mazderati

I feel confident in the fact that a car with a heavier flywheel would put down more torque than the exact same engine or car with a lighter flywheel on a dyno.

pengaru

FrestyleFC3S

i see no way or reason this would be true





lessening the amount of rotating mass will free up anything there....it wont give or take away any power and torque., but it will free up whats dormant

Mazderati

I might modify my statement and say that the results may not show up on the dyno but instead would show up in the reduction of an E.T. at the drag strip, most likely.



Not only would the resulting torque show up off the line with a heavier flywheel but it would also show up between gear changes, especially if the transmissions ratios are wide.



Either way, right or wrong, I would like to see a dyno plot.

TheCamel

Dramon, please do not quote fast and furious, you only make yourself look worse (not exactly posting at the top of the food chain as it is)



As far as the light/heavy flywheel it all depends on what you are looking to do with the car. I have a ORC 600u twin plate clutch sitting here, it weoghs approx 28-30 lbs complete, which includes the flywheel, clutches, and all the hardware. For applications such as a drag car or high horsepower turbo street car I would go with the heavier flywheel, for the inertial weight they have, on a road racer or autocross car where you are in and out of the revs constantly I would reccemend the lighter flywheel to get the engine to spin up and into the power range faster. Now it sounds like I am contradicting myself here right? The point I am trying to say is the heavier flywheel will keep the inertial speed of the flywheel in the power range on a drag car between shifts a lot better than a lighter flywheel, whereas in an autocross or road race you want the engine to match the gears a lot faster, less rotational weight will give you better control of the power band in short bursts than your engine fighting the heavy flywheels.



For the torque stuff, well as everyone has said there is not much to be done about the weak torque the engine has from the factory, I would suggest possibly doing a forced air induction like a turbo or supercharger. If your looking for a kick in the pants off the line and not a big hp increase the supercharger would be the key, if your looking for a lot more power, 4 port motor, sideport and a turbo would be the better route, no matter what you choose, there is no cheap way to do this.



Good luck