turbo rebuild

If you rebuild your own and choose to bead blast the wheels to clean them up, make sure you don't blast the shaft as well. It makes it look purdy but then it won't fit back together... :bang
 
arent the wheel and shaft already independently balanced? how the heck would they get balanced IN the turbo?
 
i think they only balance the wheels

(and they do it out of the turbo...lol)

dont think it matters where you put them on the shaft
 
You balance the shaft only, then the shaft w/comp wheel only and finish balance the whole assy at operating rpm on a VSR or Vibration Sorting Rig. alot of people get away without but I'd never take my chances. $.02
 
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RILES said:
You balance the shaft only, then the shaft w/comp wheel only and finish balance the whole assy at operating rpm on a VSR or Vibration Sorting Rig. alot of people get away without but I'd never take my chances. $.02
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Is that similar to the way I balance my mower blades? Do you know what size nail they use to hang the wheel on?
 
RonA said:
Is that similar to the way I balance my mower blades? Do you know what size nail they use to hang the wheel on?
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Lawn mower blade balance technology works great, if you have a damaged blade, just remove the same amount from the blade that is 180* or roughly 180* away for an odd # blades.

As far as nail size, a real turbo takes a door hinge pin and 66mm and smaller turbos dont run hard enough to rate the time it takes to finish balance :evil

the whole thing is a scam by the turbo manufacturers to take advantage of us :kick:
 
the shaft? come on. its round. precision ground round and at the very center of everything that is turning.
 
DTanklage said:
the shaft? come on. its round. precision ground round and at the very center of everything that is turning.
Click to expand...

Where exactly is the turbine wheel?..............at the end of that precision shaft I'd bet, its a good thing turbos never get abused or out of balance, its also a good thing we dont ever take them beyond what they were designed for. :poke:
 
come on....that shaft is only spinning what? 100,000 rpm?

prolly closer to 150k on a p-pump with only the slightest of fuel mods in front of the stock turbo

if it is screaming instead of whining you prolly need bigger

then again, the silver bullet i just threw on my rag screams pretty good and i know i am no wheres near the upper limits of its map

my nephew is funny. first time he rode in the truck after going from the hx-35 to a 62/65 he was like, "hey, you put a different turbo on your truck" (he could hear the difference). then, when i put the 66/74 on there first time he rode in it he as like, "God da♫↓n, that turbo SCREAMS, what did you put on there now?" those two turbos work and sound sooooo different its hard to believe they are both built on the same frame
 
Is your 66/74 a T3 or a T4? and you arent kidding about rpms, it still amazes me,
I went and reread your post, if its the same frame its a T3, those diminsions in a T4 frame are the chit for a single
 
t3

ported pretty good tho

like carl sayz....wait til you get the twins on there....

"silver what?"
 
I didn't take any chances, I had the local turbo guy here do both of mine, the HX hybrid & later the S300 and I told him I was "gonna spin this thing up more than it was intended...better balance it good". Both are good pieces.
 
Could just buy the rebuild kit from the ebay guy who you send your wheels and shaft into and he balances them as part of the kit cost...Ron is his name.

I just rebuild my HT3B the day before yesterday and it went pretty smooth. Marked everything and put it back the same. I have the HX35 kit sitting here ready to go and I'll send my rotating assembly in to get balanced when I use it.

-Dustin-
 
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