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Rb26 Rebuild

Godzilla32

By Godzilla32,
in Engines & Forced Induction

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Godzilla32 Veteran

Godzilla32

Posted
Posted

Hey guys im currently rebuilding my Rb26 as the topic states. Im pretty sure i'll have to rebore the block. Was hoping just to hone but probably just end up re-boring. Anyway the car is very stock at the moment but incase of future plans i was thinking to go to forged internals. Is it worth it? Planning mild performance work for sure with a chance of maybe one day getting a little more serious with it. Also plan to fully balance the bottom end. Who has done what and what were the outcomes...

Thanks in advance,

Deren

:(

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Godzilla32 Veteran

Godzilla32

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Well to start, i wouldnt be putting the stock ceramic turbos on there regardless.

Depending on the power aims, the stock rods might be perfectly fine.

So, what is the target?

Yeah i know its risky. As for power target..To begin with only mild say, 200-250rwkw. But i really don't know where i will stop. Whats the safe working limit of stock internals?

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R31Nismoid Grand Master

R31Nismoid

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Its not risky, i would say its damned near silly to be honest.

If it lets go and the dust gets into the bore, you'll be paying for another rebuild.

You gotta ask yourself if its really worth it... which IMO it isnt... so change turbos now.

400+rwkw if built correctly will last rods/crank no problem.

If not, then, its like playing the pokies mate :(

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Godzilla32 Veteran

Godzilla32

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Hmm..Yeah one already let go just after imported the car. However i was lucky. Another threw a tip of a blade...still lucky, but i guess my luck has to run out eventually. What would you suggest for replacement turbos. I had planned to use GT-SS kit one day...Thoughts? Its very cheap on Nengun for the kit. Also I noticed in your last post you only said the rods/crank will stand that power. What power will the stock pistons withstand?

Deren

Edited by Godzilla32
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R31Nismoid Grand Master

R31Nismoid

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Stocker pistons will "hold" the power the GT-SS puts out... IF street driven. If track... then i would put better pistons in there, stocker rods/crank are perfectly fine.

As its apart already, do the pistons mate. Its not worth the hassle later on.

GT-SS is what im using aswell, its perfect for a streeter GTR. So much response everywhere its amazing.

But do them in conjunction with the rebuild.

If you wanna track it, at around 300-330rwkw its hard to say that it will last forever being i've seen motors die around the 300-330rwkw mark with decent tuning...

Its more the constant high RPM thats killing them.

Thats enough for me tonight... too many beers :(

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monga Experienced

monga

Posted
Posted

Im rebuilding mine at the moment and Im using Arias Pistons, Eagle Rods, King bearings, new N1 CRANK, WATER & Oil pump plus alot of other gear with HKS 2530's after market cams ect

aiming for around 500rwhp before I had 400rwhp on stock internals which had being rebuilt once before already

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