aluminum drive shaft for better dyno results? - Forums at Modded Mustangs
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post #1 of 25 Old February 25th, 2010, 11:19 AM Thread Starter
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aluminum drive shaft for better dyno results?

Ive been researching Al. drvieshafts and am thinking about doing one before I go off to the dyno (to get more RWHP) and am just wondering which would NOT vibrate under my car. Any suggestions? Been told that Al driveshafts come factory on 2004 gt's, is this true? I dont know. Thanks.
Oh, by the way, thanks for suggesting Speedys in Owensboro to all that did, Ill be going there next month for a dyno run, tune, then another run. Ill let ya'll know the results.
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post #2 of 25 Old February 25th, 2010, 11:22 AM
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What do you mean "which one would NOT vibrate"?

None of the Gts came with aluminum driveshafts. I know the termis did though.

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post #3 of 25 Old February 25th, 2010, 11:24 AM
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Very little of that weight savings will translate into rwhp. Less rotating mass in this case would equate to you feeling the car build rpms a little quicker, but very slightly.


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post #4 of 25 Old February 25th, 2010, 11:27 AM
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post #5 of 25 Old February 25th, 2010, 12:15 PM
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. an no aluminum drive shift will vibrate. they are all balanced


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post #6 of 25 Old February 25th, 2010, 12:46 PM
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are the t 45 and t3650 31 spline yokes?

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post #7 of 25 Old February 25th, 2010, 12:49 PM
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. an no aluminum drive shift will vibrate. they are all balanced
LOL, nice sig pic! Slicks in the snow!!
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post #8 of 25 Old February 25th, 2010, 12:51 PM
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LOL, nice sig pic! Slicks in the snow!!
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post #9 of 25 Old February 25th, 2010, 12:55 PM Thread Starter
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Ok, so al. DS not worth the timwe or $ then? Yea, nice pic, slicks in the snow, braver than I am.
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post #10 of 25 Old February 25th, 2010, 12:56 PM
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LOL, nice sig pic! Slicks in the snow!!
surprisingly it moves around better with those than the summer performance tires that i have for moving it around


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post #11 of 25 Old February 25th, 2010, 12:56 PM
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Ok, so al. DS not worth the timwe or $ then? Yea, nice pic, slicks in the snow, braver than I am.
you seriously dont think i drive it like that do you?


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post #12 of 25 Old February 25th, 2010, 01:12 PM
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bite through your jugular vein.. that's F8L!

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post #13 of 25 Old February 25th, 2010, 03:02 PM Thread Starter
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Well, I hope you dont, otherwise like I said, your braver than me.
Hardhitter, what does "bite through your jugular vein even mean? Dosent make any sense.
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post #14 of 25 Old February 25th, 2010, 03:04 PM Thread Starter
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Ah, slicks in the snow, whats your setup that allows you to run 12's with a stock long block? Do slicks really help out THAT much??
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post #15 of 25 Old February 25th, 2010, 03:10 PM
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Ok, so al. DS not worth the timwe or $ then? Yea, nice pic, slicks in the snow, braver than I am.
Aluminum driveshaft is worth it. You're eliminating sprung and unsprung weight. You might get a couple more RWHP since you wouldn't lose as much of the Crank HP through the drivetrain. The actual HP gains will be minimal though. But it's like saying gears aren't worth getting because you don't get any HP from them. There are several other things to worry about rather than RWHP numbers.

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post #16 of 25 Old February 25th, 2010, 03:13 PM
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Do slicks really help out THAT much??
Is this a serious question? LOL

Yeah slicks help a ton. They will help you drastically reduce your 60' times, and they say .1 in the 60' makes up .2 on the big end. So yeah if I could cut a 1.6 on some slicks instead of my best of 2.1 on street tires I'd be close to shaving a full second off my ET. I don't really care about my ET though

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post #17 of 25 Old February 25th, 2010, 03:31 PM
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Ah, slicks in the snow, whats your setup that allows you to run 12's with a stock long block? Do slicks really help out THAT much??
my car has never seen snow on the road and never will. the only time it does is when i drive it from storage 100' to put it in the shop to work on it. The mods that got me to run 12s are in my garage. My cars been parked since august


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post #18 of 25 Old February 25th, 2010, 03:37 PM
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Aluminum driveshaft is worth it.
Ok then, post up some before and after ETs for the same car. How much is it worth it? Sure it makes logical sense to reduce the weight of the driveshaft, but its not much in the grand scheme of things. What does the ring and pinion weigh, axle shafts, brake rotors, wheels, tires, etc? I would wager that removing the rear rotors and calipers would have a larger effect than a aluminum drive shaft. If wanted to set a record and every 0.01 sec counted, then i would run one.
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post #19 of 25 Old February 25th, 2010, 03:44 PM
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My guess is 0 hp.
You dont gain hp bout the decrease in rotating mass does decrease drivetrain loss and increase power to the wheels slightly. Your car will also rev quicker and be a little smoother. Its worth it if you have the money but dont kill yourself to get one.



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post #20 of 25 Old February 25th, 2010, 03:50 PM
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You dont gain hp bout the decrease in rotating mass does decrease drivetrain loss and increase power to the wheels slightly. Your car will also rev quicker and be a little smoother. Its worth it if you have the money but dont kill yourself to get one.
I don't disagree with the theory one bit. If you rev quicker, then you have more hp, especially measured on an inertia dyno. They measure hp and convert to tq, so if you rev quicker, you make more hp.
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