Steel VS Aluminum Driveshaft - Chevelle Tech
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  #1  
Old Jun 2nd, 11, 9:11 AM
Strokd66 Strokd66 is offline
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Default Steel VS Aluminum Driveshaft

Is there anything to be gained possiably in the 60ft or overall at the track when going from a steel to aluminum driveshaft?
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  #2  
Old Jun 2nd, 11, 9:30 AM
engineguy engineguy is offline
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Default Re: Steel VS Aluminum Driveshaft

Aluminum driveshaft does have advantages over a steel one, but just changing to an aluminum 'shaft won't make a "noticable difference" in your 60 ft. times - in my opinion.
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  #3  
Old Jun 2nd, 11, 9:44 AM
jeff swisher jeff swisher is online now
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Default Re: Steel VS Aluminum Driveshaft

I know one instance where it made a huge difference in seat of the pants,
this was in a fox body mustang.
I have asked the guys at Drive train specialists here in OKC. and they told me that i should stick with my steel shaft, reason being ,, they get a lot of aluminum in there with the ears twisted off...and just as he said that a guy walks in with an aluminum shaft with the ears twisted off.
I set my transmission yolk on the counter and told him to build me my same old steel shaft...
I hammer my stuff pretty hard and there is always a lot of "off road" stuff with loading and unloading of the shaft..maybe the aluminum ends they have just aint up to the task...it is a mystery
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  #4  
Old Jun 2nd, 11, 10:12 AM
blumont blumont is offline
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Default Re: Steel VS Aluminum Driveshaft

Denny's would not sell me an aluminum drive shaft, they said it should be steel.
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  #5  
Old Jun 2nd, 11, 10:41 AM
bracketchev1221 bracketchev1221 is offline
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Default Re: Steel VS Aluminum Driveshaft

Unless you need one for Metallurgic issues, I would not get one. Steel is fine. My car, needed one based on the critical speed of the shaft. For the length and rpm it would see, a steel shaft would bow and create a jump rope under the car.
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  #6  
Old Jun 2nd, 11, 10:46 AM
Strokd66 Strokd66 is offline
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Default Re: Steel VS Aluminum Driveshaft

OK I'll stick with the steel....
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  #7  
Old Jun 2nd, 11, 11:04 AM
big_orange big_orange is offline
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Default Re: Steel VS Aluminum Driveshaft

Quote:
Originally Posted by jeff swisher View Post
I know one instance where it made a huge difference in seat of the pants,
this was in a fox body mustang.
thats because most of em dont have enough power to turn a steel shaft
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  #8  
Old Jun 2nd, 11, 11:39 AM
ripdog28 ripdog28 is offline
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Default Re: Steel VS Aluminum Driveshaft

I actually run a Alum, any one run one that didnt like it who has posted so far? or just what you heard? I did my research and called tech lines. Inland Empire Driveline was one of the first to be certified by NHRA/IMCA for their alum shafts. They currently have them in 2k+ hp cars with out a single problem. Benefits, Less drag on engine to turn, faster revs, more power to wheels, easier to balance, overall lighter. Im pushing close to 600hp/tq in a nearly 3800lb truck and so far not one problem. I have turned 6k+, long nasty burn outs from a dead stop and rolling and the general beating. From day one i beat on this. I didnt properly tq a u-joint and it fell apart on one of my abusive rides and only thing that happened when the shaft smacked the driveshaft hoop was a few small dents. Called them up, told them what i did and they fixed it at a discount. I love this site but a lot of guys talk about what they hear with no personal experience, even i have. Call someone who does it right and has experience, Inland Empire Driveline is backed by their tried and trued alum shafts. A lot of companies are recently getting into the alum shaft business, IEDLS has been in it for a while. and their u-joint ears are thick as hell.
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  #9  
Old Jun 2nd, 11, 12:14 PM
CDN SS CDN SS is offline
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Default Re: Steel VS Aluminum Driveshaft

FWIW I have a Dennys 4" Alum ....Nitrous Series I think its called ......been in car since 2006 ..........not raced every weekend but defintley gets a workout with stik car with slicks and 5k launces ......no issues no vibrations etc
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  #10  
Old Jun 2nd, 11, 3:17 PM
jeff swisher jeff swisher is online now
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Default Re: Steel VS Aluminum Driveshaft

I figured someone was making a good aluminum..that is why i posted :..maybe the aluminum ends they have just aint up to the task...it is a mystery ..
Now i know where to go if i get the desire to try the aluminum,,, i have seen some nice looking carbon shafts..but really never researched them. I do think i remember reading they have even better harmonic reducing capability than aluminum...that is as far as my research went

And the ford Fox body had the 347 and gt40 heads and x303 or b303 cam and the aluminum shaft made more difference than the cam change..in seat of the pants...but Big_orange you are right just a 12 second light ford car,,,not impresive for all the money and addons
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  #11  
Old Jun 2nd, 11, 4:42 PM
novaderrik novaderrik is offline
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Default Re: Steel VS Aluminum Driveshaft

my only experience with swapping in an aluminum shaft was in a friend's 95 Z/28. another friend worked at a GM dealer and they had an aluminum shaft out of a 6 speed car that he got for free. just putting that in the car made a noticeable difference in how the car felt off the line. if it worked that well in a car with a 3 foot long driveshaft, i think it would do even more in a car with a 5 foot long driveshaft.
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  #12  
Old Jun 2nd, 11, 4:51 PM
Greg Owens Greg Owens is offline
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Default Re: Steel VS Aluminum Driveshaft

Not trying to call out those that have said otherwise, but a driveshaft change alone is not going to give you a change in power. "Seat of the pants" is worth nothing in my book. Too many variables. It takes a dyno or a time slip IMHO. You feel a seat of the pants change if you WANT to feel one (to justify the expenditure??). In fact, a drive shaft change is not going to give a time slip measurable difference either. The difference in weight is minimal, and the weight is so close to the center line of rotation that it's not going to make any difference.

Now there may have been some other issues going on that happened to get worked out when swapping the drive shaft, but I'd hate for a bunch of folks to read that post and go spend their hard earned money on an aluminum drive shaft thinking it's going to make the car faster.
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  #13  
Old Jun 2nd, 11, 5:01 PM
68rat454 68rat454 is offline
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Default Re: Steel VS Aluminum Driveshaft

To further support Greg on this--- I changed the car last year from CM steel to carbon fiber and saw ZERO change on the time slips...

I changed shafts because I had to change the length and decided on carbon fiber in case it breaks and how well they disintegrate and possibly save some parts under the car.
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  #14  
Old Jun 2nd, 11, 9:44 PM
bracketchev1221 bracketchev1221 is offline
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Default Re: Steel VS Aluminum Driveshaft

I never said aluminum was bad, just didn't see the need to get one. I have been running mine for 8 years. No issues going mid 1.20's in 60 ft at almost 3200 lbs. If Mark Williams would have LET me buy a chromoly shaft for my car, that is what would have been in there. My friend has a chromoly MW driveshaft in his 3500 lbs 1000hp 70 El Camino. When I got mine, the high speed spin equipment had just come out, and MW said if they had it when my friend ordered his, a chromoly shaft would have NEVER been sold for his car.
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  #15  
Old Jun 2nd, 11, 9:50 PM
Bob West Bob West is offline
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Default Re: Steel VS Aluminum Driveshaft

I believe Ed used to say his aluminum driveshaft was worth .04 in e.t. I still run steel with Spicer 1310 u joints
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