Solid Drive Line

[jott5555]

now granted i have not done any testing seen any products or anything but form my nissan days i remember a lot of guys gaining some hp from a solid drive line.. out setup on a AWD has 2 carrier bearings on it which contribute to drivetrain power loss.. if someone were to convert to a solid drive shaft would they see any gain or is there too much travel in the rear diff to allow a solid line to travel far enough??

just a idea that came to my mind

thanks

 

[Defiant]

The diff's mounted on the subframe, so movement shouldn't be an issue. My guess is that it's done that way for vibration and noise elimination. It might transfer a bit more load to the engine mounts, but I won't even claim that's right. Clearance issues?

 

[jott5555]

Hey man thanks for responding.. im sure that there isnt that much loss throught the drive line.. but mabey 5 or so hp.. this may be something to really look into.. of course if it were made lighter it would also have less rotational mass also which would put less of a load on the transmition ect....

 

[92_75i]

I have no clue what you are talking about

 

[slvrstingray]

I believe that the drive shaft in our cars is in 3 pieces because of a few main reasons. 1. being a transverse mounted engine, when our engine gets put under a heavy load, like luanching or something, the engine can move as much as 2 inches. 2. The distance between the transfer case and the rear end is very long. in terms of strength a solid piece would have to be very large in diameter to be strong enough for that lenth. if you were to keep the same diameter as stock in a solid shaft, you could twist it or it would have to be very thick walled, yet it would still have to maintain a lot of torsional twist. 3. even though the rear end is mounted to the subframe, it can still move about a 1/2" to 1" through the slop in the bushings. You can see the rear subframe move if the car is lifted by the body. In my opinion, being such a small driveshaft in diameterm, it was broken up into 3 pieces to compensate for wieght, add torsional strength, make it smaller for clearance issues, and to have it solid mounted to teh body allows for the travel between the transfer case and rear end.