Flywheel Question

[ihmeg]

could somone please tell me about how much it is to get a flywheel resurfaced --- or would it be about the same price as just getting a new flywheel because a friend of mine said that they talked to a person that said it would cost about as much to get a flywheel resurfaced as it would be to replace this but i am hoping not - any opinion would be greatly appriciated!!!!
please help me out because as soon as i get my flywheel finished my car will be done and i can drive it!!!!!

[PinkPanther]

Take it to a machine shop ihmeg, and they should charge you around 30-50 dollars. I'm pretty sure they can only be resurfaced one time, though.

[ihmeg]

oh ok thanks - wonder why they tried to say it would cost about as much as a new flywheel maybe they thought sr flywheels are cheap

[fliprayzin240sx]

haha itll cost that much if you have the dealer put it in. But yah im in the middle of a swap rite now and costed me $40 to resurface the stock flywheel.

[240 2NR]

In a race the lighter flywheel will be faster.

With a lighter flywheel you're decreasing the mass and therefore the inertia required to accelerate it. The main trade off is in low speed driving where you will have to be more careful releasing the clutch as the engine will have less rotational mass to absorb the load and will therefore be more prone to stalling than with a heavier flywheel which would forgive such actions. Once underway (or with a high rev aunch like in a race) the lighter flywheel has less mass to accelerate and will therefore make the car faster (from stock it will make the car "feel" about 200 lbs lighter in accelerating in 1st, though the gains fall off quickly so it may only feel 70lbs lighter in second and negligable when you hit 5th).

The throttle response will be more immediate, but as mentioned the engine revs will also fall quicker, so matching revs when shifting becomes more a bit more difficult under relaxed driving (though you'll get used to it). I would imagine it makes a bigger difference on a cold gear box where sometimes the 1-2 or 2-3 shift requires a longer pause until the transmission warms up or the revs climb.

[ghostuss]

It's not 100% true that lighter flywheel = a fast car. Why would ppl in drag racing use heavier flywheel then?

and what the hell does this has to do with the topic?

[s13gonwild]

around here it cost 15-20 bucks

[Rownan]

It's not 100% true that lighter flywheel = a fast car. Why would ppl in drag racing use heavier flywheel then?

and what the hell does this has to do with the topic?

Drag racers don't use lightweight flywheels because, between shifts, a heavier flywheel allows you to carry more torque into the next gear. Smoother power delivery.

The only downfall of a lightweight flywheel, which is negligible anyways but in drag racing it can make a difference.