Driveshaft material?

[scogin918]

Which driveshaft would better suit my needs? A high dollar 6061 t-6 Aluminum or a plain old steel one? I sent my measurements to IED for a quote and they sent back a figure that was aboput 125.00 more than I expected. I'll buy it, but only if it looks like I'll need it. If it looks good in the process that wouldn't be so bad, but it isn't the main objective. The car in it's semi-final state should be making 500-525 HP at the flywheel with a ProCharger.

[paul67]

I think you will not loose so much horse power with the alloy as it has less rotating mass ,this would need confirming