Aluminum Flywheel with a PD Blower

[sdleo29]

Any downside to having an aluminum flywheel versus steel with a PD Blower? I was told it was no good because of rotating mass difference etc etc .. I assumed perhaps there was logic there as a PD blower has instant torque:revs versus a centri ... What's the bottom line?? Thoughts

Tranny is out of car and now would be the time to change if there is s downside.

Thanks all

 

[skwerl]

IMO it will be way too twitchy on the throttle. I had a lightened steel flywheel on mine and throttle changes were super quick. You also need the mass to help carry rpms through the gear changes.

 

[stkjock]

My Shelby has a alum flywheel in it.

depends on how you're using the car general wisdom says: racing = alum fly, mostly street = steel

I've never found an issue with street with mine

 

[JeremyH]

I don't see a problem.

 

[joedls]

I've never found an issue with street with mine

Same for me.

 

[loots06]

I removed mine in my recent build and went back to stock, but I'll be going back soon.

 

[Department Of Boost]

I've never had even the smallest issue. I think a lot of it has to do with how I let the clutch out though. I give the throttle the smallest blip and when the RPM's are on the wat back down I start to let the clutch out. A bit of a brap, braaaaaaaaaaaap. The blip is really small and only a split second.

I think I got this from motorcycles.

 

[travelers]

I've never had even the smallest issue. I think a lot of it has to do with how I let the clutch out though. I give the throttle the smallest blip and when the RPM's are on the wat back down I start to let the clutch out. A bit of a brap, braaaaaaaaaaaap. The blip is really small and only a split second.

I think I got this from motorcycles.

I do the same with both the car and the H-Ds. Mine came from 18wheelers I think

 

[Department Of Boost]

I do the same with both the car and the H-Ds. Mine came from 18wheelers I think

That's where I've heard that before.

 

[drive_55_not]

I've ran numerous clutches that weighed from 56lbs to the lightest at 34lbs. Stock clutch/FW weighed 48lbs IIRC.

My current ACT twin disc weighs 42lbs and is about perfect.

Daily driving is a little better with a heavier clutch, especially in traffic as you don't need to goose the throttle as much to get moving. Gas mileage will suffer with a heavier clutch.

The 34lb clutch was a bit of a bitch in traffic, takes more throttle to get moving, if you have a loud exhaust people will think you're wanting to race coming off a stop light ... and the engine will slow down much quicker coming off the gas. My gas mileage improved by 3+mpg wit the light clutch over a nominal weight clutch.

As far as drag times, I saw minimal improvement with the light clutch compared to the 55lb'er. The light clutch did help with high rpm power-shifting but you still gotta blip the throttle to power-shift a synchronized tranny and a light weight clutch will really porpoise on those shifts.


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