Alum. vs. Steel Flywheel
#1
Alum. vs. Steel Flywheel
Hi guys. I don't know if this has been discussed or not but here's my question. I own an 85 GT that has dyno'd 300 RWHP with 310 RWT. I have been running the original 10" clutch and am planning on upgrading to a 10.5 this winter. I have been getting conflicting advice on which flywheel I should go with. Lightweight aluminum or a heavier steel? The car is a street driven car with the occational run at the local drag strip. I have heard that aluminum flywheels are not very streetable but will alow the engine to rev quicker at the track. I've even been told by a couple of clutch shops to just go with a stock replacement steel piece. I've also been told by a couple seasoned racers to go heavy.
The car weighs around 3200lbs with me in it. At the track I run a 275/50/15 BFG DR.
Any ideas here? Thanks in advance.
The car weighs around 3200lbs with me in it. At the track I run a 275/50/15 BFG DR.
Any ideas here? Thanks in advance.
#2
RE: Alum. vs. Steel Flywheel
I too asked the same question about lightweight vs. stock. Here's the main pro and con...
Pro lightweight:
Engine will rev faster and if driven properly can help you in your 1/4 races since engine will be more responsive. It will also help around town to make the car feel livlier
Con: not as streetable
Because there is less inertia on the engine side, if you don't have your shifting down, around town you will tend to bog more or cause bucking when shifting since the engine speed will be more sensitive to loads.
My opinion, leave the stock (heavier) flywheel on and get an aluminum driveshaft.
Pro lightweight:
Engine will rev faster and if driven properly can help you in your 1/4 races since engine will be more responsive. It will also help around town to make the car feel livlier
Con: not as streetable
Because there is less inertia on the engine side, if you don't have your shifting down, around town you will tend to bog more or cause bucking when shifting since the engine speed will be more sensitive to loads.
My opinion, leave the stock (heavier) flywheel on and get an aluminum driveshaft.
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