Driveshaft drivetrain loss difference 1piece v 2piece?

[RedHeartbeat]

I think the main reason for the 2piece shaft is to prevent it from deflecting enough to fall out of the transmission. The longer the driveshaft, the more the pipe can wobble out of round under severe loads. The whole trick with the 2piece shaft is to keep the transmission end perfectly straight so that you don't have friction in the front ujoints. That way the driveshaft is nothing more than an extension of the transmission output shaft and you don't loose much power turning it.

I think you could get away with a small diameter front half or one made from aluminum or carbon fiber if you wanted to go exotic.

[93Ext5.7ltr]

<div class='quotetop'>QUOTE(RedHeartbeat &#064; Oct 29 2006, 05&#58;58 PM) [snapback]71557[/snapback]</div>

I think the main reason for the 2piece shaft is to prevent it from deflecting enough to fall out of the transmission. The longer the driveshaft, the more the pipe can wobble out of round under severe loads. The whole trick with the 2piece shaft is to keep the transmission end perfectly straight so that you don&#39;t have friction in the front ujoints. That way the driveshaft is nothing more than an extension of the transmission output shaft and you don&#39;t loose much power turning it.

I think you could get away with a small diameter front half or one made from aluminum or carbon fiber if you wanted to go exotic.
[/b]

I&#39;m not seeing anyone who will make a one-piece aluminum. Only the C/F. ACPT seems pretty confident they could put a 1piece C/F together for me which would handle the "wobble" - which sounds accurate. I know some fab work would have to be done to cut out the carrier bearing and all and then the pinion angle would have to be set a bit differently. I would figure a two-piece assembly would be pretty heavy (60 or so pounds) compared to a C/F - maybe 20....don&#39;t know what that would translate to rwhp/rwlbtq-wise.

They say 1500.00 tops for the driveshaft.....

Figure this and a Nelson tune might be able to help me get closer to where I feel I should be in the quarter...13.7/13.8.....don&#39;t know if a full second is in there or not...but it just doesn&#39;t make sense to be putting down 355rwhp@4700lbs and be pulling a 14.6 in 60 degree temps.

[Jamest]

<div class='quotetop'>QUOTE(93Ext5.7ltr &#064; Oct 30 2006, 12&#58;05 AM) [snapback]71608[/snapback]</div>

I&#39;m not seeing anyone who will make a one-piece aluminum. Only the C/F. ACPT seems pretty confident they could put a 1piece C/F together for me which would handle the "wobble" - which sounds accurate. I know some fab work would have to be done to cut out the carrier bearing and all and then the pinion angle would have to be set a bit differently. I would figure a two-piece assembly would be pretty heavy (60 or so pounds) compared to a C/F - maybe 20....don&#39;t know what that would translate to rwhp/rwlbtq-wise.

They say 1500.00 tops for the driveshaft.....

Figure this and a Nelson tune might be able to help me get closer to where I feel I should be in the quarter...13.7/13.8.....don&#39;t know if a full second is in there or not...but it just doesn&#39;t make sense to be putting down 355rwhp@4700lbs and be pulling a 14.6 in 60 degree temps.
[/b]

Do you have a stall converter. I think your TQ/Hp is up in the power band. This is the prob. I had. Nothing down low, now I have a cam and stall. I just need to go to the track and test it out.


Jamest