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Originally Posted by CosmosBlk97 At this moment will go with GT28 BB turbo FMIC at 8 psi stock motor and compresion. |
I'm going to recommend you not go with a gt28r, but rather consider at the minimum a gt30 with your ideal being a gt35r.8 psi is fine for the stock compression and motor as long as you have it tuned properly.
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Originally Posted by CosmosBlk97 From what i know S52 comes w/ forged steel rods and forged crank. sounds like the only weak spot is cast aluminum pistons. Do you know HOW MANY HP they are good for?!! |
Yes on rods and crank. Everything in the motor is pretty good for up to 450+ rwhp reliably. Some swear by the necessity to do beefier rods and low comp pistons. The majority have safely done a thicker headgasket with ARP studs in order to lower the compression ratio.
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Originally Posted by CosmosBlk97 How many psi i can do on GT28 stock motor safe?!!! With or without methanol injection |
I wouldn't push past 9 psi borderline on the stock compression stock motor. You neeed to install a thicker headgasket and stronger studs in order to really go above that. And do not look at meth injection as a tool to push your stock motor.
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Originally Posted by CosmosBlk97 Im not sure if im going to change rods because i have compared stock S52 to forged aftermarket I beam and the stock looks very beefy and the H beam design is very strong. From what i know stock is just as strong as aftermarket, just heavier so slower rev... |
The stock are very strong, but many people playign with gt40/42's generally do them just in case. I've defintely seen quite a few 450+ rwhp setups send rods through the block.
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Originally Posted by M3UOND Swap rods with an S50 motor, they're noticeably beefier. |
Actually, I would go with the Non-Vanos rods from the 92 3 series. Although aftermarket rods are probably better in his case.
