jbeech Posted February 4, 2005 Share Posted February 4, 2005 HI folks, I've never had other than a stock Chevy flywheel in my SBC powered Z car, but I'm about to join my new engine/T-56tranny and wondered about lighter flywheels. I know the theory, anybody experienced with the combo care to say something? Quote Link to comment Share on other sites More sharing options...
jt1 Posted February 4, 2005 Share Posted February 4, 2005 John, I've got a 15# flywheel in my car. The rpm changes so quickly when you mash in the clutch and let off the gas that you have to be very precise to shift smoothly. It's great on the track, the thing will explode off the corners, but it's touchy on the street. John Quote Link to comment Share on other sites More sharing options...
jbeech Posted February 7, 2005 Author Share Posted February 7, 2005 Thanks John, I appreciate the rapid response, i.e. from someone with real world experience. I decided I would go with a stocker for 50 bucks plus 25 more to have it ground and saved the 300 bucks for a lightweight. I'll be happy - I know what I'll get while from your description I suspect I might not have been. Quote Link to comment Share on other sites More sharing options...
80LS1T Posted February 7, 2005 Share Posted February 7, 2005 I too am wondering the samething about how much difference I will notice from the stock weight(not sure on weight?) to my new Fidanza alluminum flywheel(11.5lbs). The reason I bought mine was because I got a really good deal on the flywheel and SPEC stage 3 clutch. Otherwise I would have gone with a billet steel flywheel like originally planned. Any more input from other memebers is appreciated! Guy Quote Link to comment Share on other sites More sharing options...
jt1 Posted February 7, 2005 Share Posted February 7, 2005 John, what weight are you shooting for after it's ground? The weight of the total assembly, flywheel, disc, and pressure plate is the most imp. thing. My total weight was 28#, and it's a major diff from stock. John Quote Link to comment Share on other sites More sharing options...
deMideon Posted February 7, 2005 Share Posted February 7, 2005 I went with the lightest flywheel I could since, I am used to light flywheels as I had one with my L28, I realized that with a 2800lbs car and a 450hp motor I needed to do something about the huge amounts of torque off of the line, and I REALLY love how fast the motor revs with a lighter flywheel! That said, it is harder to drive on the street, it's touchier and you end up having to feather the clutch a lot and shift more to keep the engine in the sweet zone. I guess to me it depends on how much torque your engine will be putting out. If it's a mostly stock 350, I'd probably use a steel one. If you have over 350 hp I'd probably go with a lighter one. But it also depends on you, how you want it to drive etc etc... Quote Link to comment Share on other sites More sharing options...
jbeech Posted February 8, 2005 Author Share Posted February 8, 2005 The motor is 450 hp and 470 pounds of torque in theory. Unfortunately, in practice the dyno didn't start recording data until 3000 rpm - at which point the motor was already down to 435 hp and 450 pounds of torque and headed south. It's exactly like I want it (I think) but the proof of the puddin' will be in the driving. In case you aren't aware of it, the T-56 tranny is heavily overdriven (5th is a .75:1 and 6th is a .50:1overdrive) so that dictated a torque monster would fit the bill. What with a solid lift roller cam, it's easy enough to change, especially with a two piece timing cover making it easy as I only need remove the water pump and possibly the radiator to swap it out. In any case, the finished flywheel weighs 27 lbs and I'm not too worried about it on the street, as I'm pretty sure it will hold its own. However, should the opportunity ever arrise where I can drive one with a light flywheel, I can always drop the tranny and swap it out. Quote Link to comment Share on other sites More sharing options...
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