feedback on one piece drive shaft

[canyon_carvers]

enthusiast, I know this subject had been talked about for a long time but I want more feedback other then just the ones in forums from 2008. For those that are running the one piece drive shaft, I want your feedback and opinions.

Just for the record, I do track my car (grip race only) and not one of those people who just one a "cool guy parts "

[joel26]

^^^^^^ this would be nice to know since i hear of people using them....

[Manifesto]

i cant really tell theres a difference in all honesty.

[mooreofit]

take out your ebrake and watch your driveshaft on a hard launch you will see it bouncing all over the place at the center support bearing and you will feel a vibration that goes along with it.i did a one peice in my sc400 the only vibration i get under hard accel is wheel hop but i picked up other vibrations mainly freeway speeds.

[Max_Misawa]

OEM drive shaft is about 21 lbs

1 piece that I make is about 14 lbs

Just in the weight savings is 7-8 lbs
I think it makes a difference in acceleration
But I'm biased obviously

Max

[JDMwhiteboy]

7-8lbs may not seem like much but this is weight in a rotating assembly. I've talked myself out of a lightweight flywheel for years but now the more research I do the more I want. I need to look into driveshafts too. I think @AznTKDmstrAznTKDmstr had some play with this?

[86boy]

I love mine. You also have to realize its not just weight. You are also removing 2 joints and that stupid carrier that will decrease drivetrain loss. I'm almost certain my car now with a w58 and 3.90 gears was made up with the 1 piece. Granted the only thing stock under my 86 is the sway bars...

[McKenney]

every 1 pound stationary translates to 7 pounds rotating... so 20 pounds static becomes the equivalent of 140 pounds rotating... food for thought

[Warren]

Its on my list..

[canyon_carvers]

Question, For 86boy and for those that has one on their 86. After installing the 1 piece drive shaft including the 4 adjustable links and correcting pinion angle where it should be at... Will you still get any vibration or sound?

[86boy]

mine was set to -0.5 I've read of people going to -3 with it. As long as it's between 0 to -2 you should be good. only vibrations I've had were the tires being oddly worn from being on the front and not being rebalanced. vibrations will happen regardless if you have 5 link with heim joints though. Everything pretty much gets resonated through the chassis at that point.

[Six1ohrollaz]

When I had my old te72 4dr I was running a 1pc driveshaft with a kouki gts rear end with the adj 4 link setup I encountered most of the vibration on the highway I also had a semi gutted interior lets just say it was quite noisy and annoying! Local driving wasn't as bad but I must say the ladies loved it jajaja I was running 15x8s 205/45s so I had a decent contact patch as we'll I did notice improve accel got sideways easier but it sacrificed cabin comfort

[canyon_carvers]

I see... thank you all for the information. I suppose I'll have to sacrafice one thing for another...

[86boy]

I've had that highway vibration since the 4link even with a stock driveshaft. If you ditch the rubber bushings for metal on metal (heim joint) you'll feel the engine/drive train vibrations through the chassis.