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GTM driveshaft

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Old 01-26-2013 | 10:20 PM
  #46  
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Originally Posted by bluedevils95
I called them yesterday for the Group buy. They are suppose to call me back
Well played. Update us when you can. I'm so down for a Group Buy. Seems like we have enough interest!
Old 01-27-2013 | 12:11 AM
  #47  
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I'd be interested as well
Old 01-27-2013 | 03:24 AM
  #48  
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Sub'd i've been waiting for these since z1 stopped making theres
Old 01-27-2013 | 04:18 PM
  #49  
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From: Torrance
don't know why Z1 stopped making them?
Old 01-27-2013 | 07:55 PM
  #50  
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Originally Posted by Black Betty
A one piece driveshaft doesn't have the center bushing because its one piece instead of two and doesn't need it for support.

TVPS I don't know when I'll have a chance to photograph it but ill try to soon. The angle is not far from the OEM 2 pc one and certainly within the normal range for the U joints. Not at any extreme angle. As I mentioned before I have the Z1 drive shaft but the GTM one will obviously be the same length and use the same U joints so I can't think of any significant differences in fit.

I'm just curious if the angles were greater than the OEM, then it might contribute to noise.
Question would be, was the center bearing in the OEM there for angle correction?
Old 01-27-2013 | 08:19 PM
  #51  
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Originally Posted by TVPostSound
I'm just curious if the angles were greater than the OEM, then it might contribute to noise.
Question would be, was the center bearing in the OEM there for angle correction?
The angles may be very slightly different but not much at all if any. I think the center bearing is there mainly for support of the heavy piece.
Old 01-28-2013 | 12:15 AM
  #52  
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From: Torrance
For those that have the aluminum drive shaft, do you have a pix of the stock one and the aftermarket?
Old 01-28-2013 | 12:27 AM
  #53  
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^there should be some in the Z1 thread
Old 01-28-2013 | 10:35 AM
  #54  
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Originally Posted by 1cleanG
Straight weight reduction? = FALSE

Its a moving, functional part that runs EVERY BIT of your power through to your wheels. How the he// is that wasting your money?

Taking a few parts like caps or hoses and replacing those with "lighter ones", sure, waste of money, but when you're talking about you're Drivetrain, literally every inch your car moves is from THIS PART and how fast it spins. How can you possibly say having a lighter one isn't worth it?


I guess you did not read what i wrote so i will explain.

Unless you have a track car, youre simply wasting your money... This is simply a weight savings upgrade as well as a strength upgrade over stock

-This means that the benefit of the al drive shaft will not be fully utilized by a stock car let alone one doing less than 600hp..Sure its lighter but as far as the "acceleration increase" that you speak of im sure its all in your head...a buddy of mine as this in his car and his car is just as fast as mine and they are both identical in mods...

....neither one of us is pushing over 650awhp or rwhp to even begin to need this...
-Exactly what it says


Im not bashing the product i just think that it is not useful for a lot of people on the board...If you want to buy it go ahead but keep in mind that difference is very minimal.
Old 01-28-2013 | 11:23 AM
  #55  
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From: Chicagoish
A buddy of yours has this? The Z1 or the GTM?
Old 01-28-2013 | 01:39 PM
  #56  
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Originally Posted by efuseakay
A buddy of yours has this? The Z1 or the GTM?

He has the GTM DS
Old 01-28-2013 | 01:47 PM
  #57  
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Originally Posted by daonlyillwiz
I guess you did not read what i wrote so i will explain.

Unless you have a track car, youre simply wasting your money... This is simply a weight savings upgrade as well as a strength upgrade over stock

-This means that the benefit of the al drive shaft will not be fully utilized by a stock car let alone one doing less than 600hp..Sure its lighter but as far as the "acceleration increase" that you speak of im sure its all in your head...a buddy of mine as this in his car and his car is just as fast as mine and they are both identical in mods...

....neither one of us is pushing over 650awhp or rwhp to even begin to need this...
-Exactly what it says


Im not bashing the product i just think that it is not useful for a lot of people on the board...If you want to buy it go ahead but keep in mind that difference is very minimal.
Less rotating mass = more power a.k.a faster acceleration. Same idea as an aluminum flywheel. The two piece driveshaft is a bad design IMO.
Old 01-28-2013 | 02:32 PM
  #58  
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Originally Posted by Can'tGme
Less rotating mass = more power a.k.a faster acceleration. Same idea as an aluminum flywheel. The two piece driveshaft is a bad design IMO.
WRONG it does not mean more power it means less power loss due to rotational mass in the drivetrain...you wont produce any extra HP than you currently make BUT you will regain minimal HP that was lost due to drivetrain.

2piece is a bad design because it introduces a weak point BUT like i said we arent making enough power to break drive shafts.. the power regained will be very small that it isnt worth the cost.
Old 01-28-2013 | 03:13 PM
  #59  
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From: Torrance
But if frees up HP. There was a before and after dyno on this and shown some power freed up
Old 01-28-2013 | 05:05 PM
  #60  
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From: Torrance
Can one of you G37 ppl take a pix of your OEM driveshaft? I am looking for the one that is near the diff.


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