2 piece vs. 1 piece drive shaft

[bamracing]

Are there advantages to the two piece drive shaft that Nissan chose to put in the s13's? Are there disadvantages to a one piece design? Is there a stock one piece drive shaft from some other Nissan that could be bolted in with no modifications.

[uvamosk]

Well, To save you the burn.1pcs drive shaft removes the carrier bearing and also reduces the mass of the drive shaft.

With the bearing gone you will be able to feel the diff a little more than usual and with the lighter weight the engine will rev more freely.

I have a 1pcs ALUM and I wouldn't trade it for the world. Its so light and easy to put in and take out.

If you couple a 1pcs light weight drive shaft with a lightweight flywheel and all light weight pullies and take the fan off the engine You will have a much more responsive engine. Due to the reduction in resipeating (Way wrong I know) mass.

[bamracing]

My local rules say no aluminum drive shafts. Would it still be worth it to switch to a one piece drive shaft? Or do I purchase the magnetic paint?

[IanS]

For dirt track I would suggest a one piece steel unit. The carrier bearings on 240SXs are known to fail. The one piece unit will allow you more finite car control, and it will also be stronger and the U joints are much beefier. I would definitely suggest it.

[arley23]

more torque to the ground

[bamracing]

I was thinking that the one piece steel unit would be the way to go, but I was wondering if there were any advantages for the two piece in my aplication - oval dirt track. Is this going to have to be a custom piece though?

[IanS]

I was thinking that the one piece steel unit would be the way to go, but I was wondering if there were any advantages for the two piece in my aplication - oval dirt track. Is this going to have to be a custom piece though?

You can get one piece steel shafts from the Driveshaft Shop, you can just go on their site and pick out the shaft you need, year, ABS, MT/AT, ect.

[CMG]

Well, To save you the burn.1pcs drive shaft removes the carrier bearing and also reduces the mass of the drive shaft.

With the bearing gone you will be able to feel the diff a little more than usual and with the lighter weight the engine will rev more freely.

I have a 1pcs ALUM and I wouldn't trade it for the world. Its so light and easy to put in and take out.

If you couple a 1pcs light weight drive shaft with a lightweight flywheel and all light weight pullies and take the fan off the engine You will have a much more responsive engine. Due to the reduction in resipeating (Way wrong I know) mass.

Are you using all of the above? At the moment I have light flywheel and no fan. I was thinking about an Al shaft but thought that and pulleys is too much.

[bamracing]

$300 plus for a one piece steel driveshaft is way too much to put into a car that can be claimed for $600 at the end of the race. Do I have other options besides $300 for a one piece or the two piece stock unit?

[IanS]

$300 plus for a one piece steel driveshaft is way too much to put into a car that can be claimed for $600 at the end of the race. Do I have other options besides $300 for a one piece or the two piece stock unit?

Not really, thats just about it. If you want to help your carrier last longer, I would think about building a little scatter shield for it, so it doesn't get packed with gravel.

[90_rb20]

300 is not bad.

I use a company local to me in Mobile, Al called "Clutch Products"

Call them and tell them what you need and you can get one in the area of 250 + shipping for a 1 piece that is very well built.

[DougRoost]

I was a bit surprised Nissan put a 2 piece driveshaft in these cars. All German cars do this because it enables a higher top speed without the harmonics of a 1 piece driveshaft, but they're typically 155mph limited, not 105mph or whatever the 240 was.