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Anyone Running Rb26 Ebay Steel Wheel Kit?

MikeRWK

By MikeRWK,
in Engines & Forced Induction

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STATUS Grand Master

STATUS

Posted
Posted
Yup, is turbo balancing really expensive in aus or something? The balancing is the only part i cant do myself.

$75 bucks here so no biggie

We have rebuilt a few turbos internally for ourselves and mates and honestly it is no black art, i have been quoted 1100 for something we achieved in house for $250 including wheels, bearings and out sourced for pro blanace job. I wont do it for a paying customer as i CBF'd with the warranty issues if it ever arose (remove and refit say on a GTR would be 1500 alone in lost time and money).

gtr fan Experienced

gtr fan

Posted
Posted

I'm with you on this Mike. If you are happy to do the labour and if its only going to cost around $600 why not.

At the end of the day you will have steel wheels, which will run more than 1 bar boost and make good power. As for lag you might only be slighty behind say a pair of HKS GTSS turbos given you are using smaller exhaust housings, but will probably still be able to see good power.

I have had my GTR for 7 years with stock turbos and their obviously considered laggy but its still fun to drive.

Make sure you post up results.

  • 7 months later...
cooljustin Contributor

cooljustin

Posted
Posted

Hi people, I have recently purchased the rebuilt turbos from the seller and about to install those recond. R33 stock turbos with steel wheels, so-called ebay n1 turbos. I was going to get GTSS or Garette 2860-9 but since we don't have a decent tuner here in Korea... and personally I am not a big fan of pursuing for big HP... I've decided to stick to stock steel wheeled turbos this time.

I will let you gentlemen know how I am getting along as I am about to install those either next week or the following period.

89CAL Grand Master

89CAL

Posted
Posted

balancing is hit miss.... You might get lucky putting one together where it will be close enough to balanced and you will getting away with it....

But Ive seen and done balancing on turbos (heavy diesel turbos) and what they do is clean everything up, replace what needs to be replaced. Assemble the shaft, compressor wheel and thrust washers onto the shaft etc. Then place it between two spring loaded pointed ends so that the points sit in each end of the shaft, Rotate the shaft with a dial gauge on the shaft (compressor wheel end pretty sure) and make sure that the shaft sits straight with everything on. Tolerances we were going to were 0.002" or similar, If there was more then this the shaft was removed, nut loosened and either the parts rotated (one at a time, slightly) then nut re-torqued and put back on to check for straightness again. If all else failed then items were replaced (thrust washers and nut mainly, compressor wheel in worst case scenarios) till it was right.

Then everything marked with some special thing for marking steel (I dont remember what it was haha) so it could be put back together the same when doing full asembly

Balancing was then done, a metallic silver pen was used to paint one fin on each of the wheels, and the balancing machine setup. Then the balancing machine runs the turbo up and measures the metallic mark. The machine is pretty cool, measures vibration and degree at which the vibration occurs then bring it up on the maching, you can rotate the turbo shaft and it tells you at what degree your at, then 2 displays of where the wheels are out of balance and tells you how much weight needs to be shedded. Weight can then be removed from the wheels then the balancing repeated till it comes up within tolerances (dont remember these)

Then everything was pulled off the shaft and the turbo assembled fully. The exhaust wheel and shaft were clamped in a vice and the turbo built ontop of that, minus the exhaust hosing which is installed last when all the internals are installed

This is all from memory so hope I rememberd right. Im not saying this is how its done everywhere and anywhere, just how it was done. Nor am I taking shots at anyone, just trying to share my experience as it was interesting to me :)

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