gsr turbo

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New Member
Hey guys,
i recently bought a precision sc61 turbo its a 61mm with a t3 housin hot sides .63 cold sides .70.
The motor is a stock b18c1 gsr with a b16 tranny.
I was just wondering how much boost it could take on stock internals.



These snozzberries taste like snozzberries...
it depends 100% on your tune. nobody on earth can give you an exact number.


Thats a decent sized turbo.

If the engine is 100% completely stock, I'd stay BELOW 230whp with a conservative AFR (say somewhere in the high 11's, low 12's) in heavy throttle and around 12.5-13.0 at idle and partial throttle.

Basically what Nick said, get it tuned by someone reputable. Spare no expense with the tune, it's the most crucial part of the build.


New Member
yeah thanks i got it for 500 bucks its only got like 500 miles on it
but hopefully ill have everything in a couple weeks i was just wondering what it could handle before i get internals