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rebuilding stock turbos to higher hp! WHAT ARE YOU RUNNING?


neorazz

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im starting a thread that hopefully with achive sticky status

 

first what is the stock turbo specs for any given year ?

compressor wheel trim / exhaust trim

 

any housing changes needed ? oil or oil/water ? est. hp ?

 

just as base line refrence

 

second what are you running ?

 

year z model

compressor wheel trim / exhaust trim

 

any housing changes needed ? oil or oil/water ? est. hp ?

 

 

mostly cause im rebuilding my turbo right now and want to go with more power (of course) and was finding it difficult to find base #'s

 

STock T3 from a 95 300z

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Heres the burt oil buildup that killed the engine it was originaly attached to

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  • 5 months later...

Don't know if this really needs a sticky There are alot of compressor maps out there and posts on here.

 

S130 and Z31's up to 87'. Compressor wheel is a T3 60 trim. Standard T3 turbine wheel. Compressor flows 34 lbs/min.

 

If you want more power, finish rebuilding it and sell it. You could go with a T4 compressor on it that will move more air but the turbine will limit power just as much.

 

I didn't see a pic with the turbine wheel out of the housing. Don't forget to replace the piston ring on it.

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  • 2 weeks later...

wow. that was one dirty turbo. i got a hold of a t3 and a parts t3. i got both off of ebay and the parts t3 was $10 and had all of the rebuild parts. saved myself at least $80 in parts. neither of my turbos were that dirty. i media blasted the parts that i was going to use and sprayed black heat paint on the turbine side. i am doing a turbo swap to my N/A 77 280z and just wanted to start off with the stock parts for now. after all it is a jump from no turbo at all. i have limited myself from not working on the turbo in the house. what i have learned from people that rebuild these for a living is to coat everything in ENGINE ASSEMBLY LUBE. that is very important and possibly overlooked. you dont put a cam back in a motor dry do you? turbos should be handled the same way. all of the reading that i have done on this site i havent seen anything about putting them back together with the lube. if you dont have the turbo back together yet, get it media blasted at a machine shop then put a nice coat of heat paint on the bearing housing and turbine housing. i am also going to port out the whole turbo. why not, it is apart now. there is my $.02

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  • 1 month later...
Did you clapm it in a vise and tap it with a hammer ?I would try some heat on it. If it's propane it will take a while. A torch would be better.

 

I burnt the living $#!+ out of my hand :cry: after heating the exhaust / turbine section. I quit after that. I'll give it another shot.

 

Thanks,

Guy

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about taking the bolts out... there isnt enough room to get a socket on, and a regular opened end wrench will strip the head off the bolt. i had a few of the bolts get stuck on me. i sprayed the hell out of them with release agent and then let it sit for a while. after that i used a tubing wrench. it wont slip off the bolt and you can get it in the tight spots. you can try hitting the wrench with a hammer. it might work and it might bust the bolt head. put the turbo in a vice and maybe try a small cheater pipe on the wrench. i will eventually give. hopefully it dosent bust the bolt. you'll be in a world of hurt then. hope that helped some. it worked for me.

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about taking the bolts out... there isnt enough room to get a socket on, and a regular opened end wrench will strip the head off the bolt. i had a few of the bolts get stuck on me. i sprayed the hell out of them with release agent and then let it sit for a while. after that i used a tubing wrench. it wont slip off the bolt and you can get it in the tight spots. you can try hitting the wrench with a hammer. it might work and it might bust the bolt head. put the turbo in a vice and maybe try a small cheater pipe on the wrench. i will eventually give. hopefully it dosent bust the bolt. you'll be in a world of hurt then. hope that helped some. it worked for me.

 

The bolts came off with a good bit of effort, but my issue was with the separation of the turbine from the center bearing once the bolts were loose. Your note is completely true though! Thanks

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it should just pull out. there is a small piston ring that is on the end where the terbine blade is. that is mostly what is holding it in there. if you are going to do a full rebuild there isnt that much harm you can do. try tapping the other end of the shaft with a dead blow hammer or a hammer and 2X4. it should pop out. guys correct me if im wrong. i have taken 2 apart and that was a few months ago.

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im starting a thread that hopefully with achive sticky status

 

second what are you running ?

 

 

My turbo is a T04E .50 AR compressor housing with an Innovative Turbo compressor wheel (see below compressor map). The CHRA is watercooled with oil fittings in the stock Datsun locations. It's a "big shaft" with a 360* bearing. The turbine housing is a modified Datsun .63. The turbine wheel is a T3 Stage V 10 blade. This turbo was built so I could use the Datsun internal wastegate and so I would need a spacer to clear the exhaust manifold.

 

At some point I'd like to go to a GT35R with a .63 turbine housing.

 

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