what difference does an aftermarket DS make other than weight reduction?
Less rotating weight mean less parasitic loss which frees up power to the rear. Same concept as the UDPs. Smaller pullies, less parasitic loss freeing power through the engine. Thing to remember is these do not "add" power, they "free up" power that's already there. Gains of .20 have been seen on the track from switching to a one piece lighter DS.
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Quote:
Originally Posted by bigwilly43729
HP numbers are good and all, but they are like asking someone how much they can bench. What difference does it make if I can still kick your a$$?
+2... I have the PH aluminum DS myself. It's a great piece and I love it, but if I was in the market right now, I'd probably go with the Spydershaft. Hard to beat for $479 + shipping: http://www.s197forum.com/forum/showthread.php?t=544
What he said, mine should be here Monday. Another 2/10ths and my heavy vert is in the 12s . Maybe mid-12s if I can get to the track on a cool night...
Thanks, I appreciate the help. Do you know if the driveshaft comes with the pinion yoke, or is that a seperate item? If so, how much more?
His set up has everthing you need, nothing extra to buy. I have one in my car now and love it. Very easy to install. He gives you a new pinion yoke for the rear. No adapters to vibrate.
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