Machined Balance Shaft

[CarRacer]

Quoting CarRacer:
I actually have a stock rear BS sitting in my car that I forgot to mail VR. I'll weigh it before sending and report the results.




Stock shaft ended up weighing 2 pounds 8 1/2 ounces.

 

[Barnes]

Wow. So about 36% of the original shaft weight. So it is much lighter, and now no eccentric loads to deal with. Considering the general reliability(okay) of these motors WITH balance shafts, I'm guessing this setup will be Xtremely reliable.

EDIT: Fixed

 

[turbowop]

extreme!!!


*edit* Can we turn off the goddamn caps filter? That was supposed to be all caps. /ubbthreads/images/graemlins/crazy.gif

Anyway, I'll keep running stub shafts. I'm sure my motor will fall apart due to using it. /ubbthreads/images/graemlins/hsugh.gif

 

[atc250r]

If mine falls apart first I'll warn you of the impending doom! /ubbthreads/images/graemlins/rofl.gif

 

[Bimmubishi]

I use stub shafts in my motors too. I just pulled mine apart this winter after three seasons of 30psi and consistent 8k rpm use and what do you know? It looks perfect.

 

[turbowop]

But Alex...that's just not reliable enough. You need to go the extra mile and use a turned down shaft. /ubbthreads/images/graemlins/hsugh.gif

 

[Brianawd]

The turned down shaft is a good idea if you plan on spinning your motor to 12k. But for the Joe blow on here whos motor sees maybe 9k the stub shaft works just fine. I am still running a stub shaft and have never had a problem. If you want to run a turned down shaft go for it. It works and so does the stub shaft

 

[Andy_S]

Quoting turbowop:
But Alex...that's just not reliable enough. You need to go the extra mile and use a turned down shaft. /ubbthreads/images/graemlins/hsugh.gif



OK, we get it. I am going to run it, its not like I said you have to.

 

[Andy_S]

Well everything is getting installed. The take-out gears (straight cut) have slightly more wear on the inside half of the gear face than the outward facing. To me this indicates that there is some spreading of the gear mesh. Is this common among oil pump gears with or without stub shafts? I'll throw up some pics when I get a chance.