Your welcome thanks for the fun discussion. lol

 

thats just plain silly.. but its ur money..
80 hp ? no maths there..thats ur numbers

the dyno spit the figure out for us on the day
btw, this 400hp diesel engine consumes same air as 800-900 hp gas/ alcohole engine...

 

Think you should balance at his place first, dyno, then crack and spinning the wheel. That way you can get numbers the same day.

Now personally I can't see a gain by doing as one piece. Only because if you bend a rod in an engine, you put a new one in within the gram measurement taken when you originally balanced. Are turbos different, can't see why. Thinking out loud here. But, driveshaft shop want the yokes when they do your driveshaft also. but don't think the yokes are independently balanced though.

 

I can see doing it with like clipped wheels, or maybe chipped up wheels. But I honestly wouldnt screw with it on anything else and haven't. And I haven't had any issues either.

What I'll do is dyno the car. Then Ill crack the nut and spin the wheel exactly 180. Ill then torque it back down and dyno the car again, that way it is back to back. And I should see ruffly a 35 hp loss?
I expect to see no loss what so ever not even of one hp. And i will promise you I spin that thing to its upper limits.

Whats the bet. Lets keep it friendly.

 

Fuck. My suggestions are out.

 

To play devils advocate, I submit this.

On my semi all rotating parts in the drive axles are individually balanced. Wheel/tire, brake drum, hub and axle. Had an alignment done after I purchased 4000 dollars worth of new tires, and they had an on truck balancing machine. For shits and giggles the did one of my BRAND NEW tires that were balanced at the tire shop. The whole assembly was off by an ounce and a half. They checked the other wheel ends and they were all off as well.

I wouldn't trust a turbo that wasn't indexed and balanced as a unit together. Doesnt take much to screw something up at 100k rpm.

 

1 1/2 oz isnt that bad considering the 400+ lbs of rotating weight, and tolerance stackup. I know the drums are balanced, but I dont think ive seen any evidence of balancing on the axle shaft, or hub on the trucks I see. just my 2 cents

 

thats alot..
once you apply the mass @ velocity , at the radius its traveling..

 

Hmmm. Only thing I can think is what may be unmeasurable with most machines, rears its head when stuff is stacked and assembled ? Meaning if you line up a few parts and where to line up all the heavy sides in a line, it becomes large enough to be measured ?

 

i would think the hubs and the axle shafts that are turned in a lathe would be ok and they are so close to the center, it wouldnt effect it much, the further you get form the center of the wheel is where it counts
just my 2cents

 

On the hubs of my truck there's evidence of grinding on the back side of the wheel studs. That's what leads me to believe the hubs were balanced.

 

thats what I was thinking too..... i'm not real familiar with the process to dynamically balancing a turbo, but if its anything like balancing an engine, its never quite perfect. we would routinely see differences between machines, they were never spot on.

Axles are forged, and hubs are cast, and neither is completely machined...... and a lot of the drums are imported, but I agree probably not a huge source for imbalance. I was just saying 1.5 oz is not much spread out over that many pieces of that weight. I see a lot of big truck (mostly local haul stuff) that goes unbalanced, and you dont notice it. But I agree with the stacking of parts 100%, and there is a huge difference between a set of duals, and a turbo.

I guess i've never seen that.

 

Ok Im here to say i was wrong and stand corrected.....


When I said precsion balances all the little turbos componit by componit and their big ones as units I was wrong.....



They don't balance ANY OF THEM as a unit........ They are all balanced by individual pieces. From your everyday street car to your full out promod....... They do this so everything is ready to go......

If this is good enough for them it's more then good enough for my customers....

I'll take that shirt now......

 

Forgot to mention since your brought up promod cars in our private discussion, who turbos are on the fastest promod to date? I believe they are a set of precision promod 88's.

Another point to make and the last point to make. Once you re-balance the turbo shaft as a unit, you will always have to re-balance it every time it is serviced. Now if its clipped or nicked then yes it should be rebalanced.

 

yer,
ill send you the t shirt.. deal is a deal
pm me ur size again..


and i'll stick to my TURBONETICS turbo's, as im sponsored by them
they VSR balance them as a unit
BTW, we will still be balancing the turbos after repair,as a unit...

 

Its a ex large. )

 

yeep ur right

 

as in you wear it to bed as a Nitie ???

 

done, i'll get it organized..

 

No as in im overweight.