how much gain in performance with a aluminuim driveshaft?
10-08-2000, 07:09 PM
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how much gain in performance with a aluminuim driveshaft?
I currently have the stock steel drive shaft and ran 12.9@110 with it vibrating bad on acceleration and deceleration ever since i installed the 3:73. How much will i gain in the 1/4 if any This is also why I havn't been back to the track untill i get a loop and a good driveshaft.
10-08-2000, 07:31 PM
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Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
There "may" be a very small gain because of the lighter rotating mass as well as the lighter weight. The biggest reason for using one is the weight saving. You could always pay $700+ for a carbon fiber driveshaft and save even more weight.
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Stephen's racing page
87 IROC-Z Pro ET Bracket Race Car and knocking on the SuperPro ET class
383 stroker (carbed) with double hump cast iron heads and pump gas
LS6 Big Block buildup now in progress
Best results before the engine blew up
Best ET on a time slip: 11.857
Best corrected ET: 11.163
Best MPH on a time slip: 117.87
Best corrected MPH: 126.10
Best 60 foot: 1.662
Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association
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Stephen's racing page
87 IROC-Z Pro ET Bracket Race Car and knocking on the SuperPro ET class
383 stroker (carbed) with double hump cast iron heads and pump gas
LS6 Big Block buildup now in progress
Best results before the engine blew up
Best ET on a time slip: 11.857
Best corrected ET: 11.163
Best MPH on a time slip: 117.87
Best corrected MPH: 126.10
Best 60 foot: 1.662
Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association
10-08-2000, 07:37 PM
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I have seen dyno #'s that indicate a 1-3 rear wheel horsepower increase with an aluminum driveshaft. The engine will also be more free revving, won't have to fight rotating mass. The biggest gain I noticed with my driveshaft was how fast the engine will spin up vs the steel driveshaft.
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84 Camaro ZZ4 with HOT cam. 1.88 60' (12.98 @ 105MPH E.T.)
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91 Firebird 5.0L TBI
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84 Camaro ZZ4 with HOT cam. 1.88 60' (12.98 @ 105MPH E.T.)
Other Mods: You name it and I have probably changed it.
91 Firebird 5.0L TBI
ASE Certified Auto Tech
LIVE AND DIE BY THE ALMIGHTY BOWTIE!
10-09-2000, 01:26 AM
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Car: 86 LG4 & 92 TBI Firebird
Engine: The Mighty 305!
Transmission: 700R4
Axle/Gears: 3.42
goto www.ws6.com There is a chart over there comparing a dyno run of both the steel and aluminum driveshafts. A bit more power is abosorbed by the steel shaft, so the al d/s will allow a bit more hp to reach the wheels.
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-Justin-
T-Top '86 5.0L LG4 700R4 WS6 Now Bilstein equipped!
T-Top '92 5.0L TBI 700R4
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