Engine Rebuilt Questions :)
06-12-03, 12:57 PM
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Engine Rebuilt Questions :)
2 days ago, I blew my motor, and of course I am going to get it rebuild asap. While that's happening, I might as well put in something and port the engine while I am at it. Here is my goal... I am looking for 350 to the wheel hp. I am pretty sure my rotors are screwed =\ so should I go with S4 or S5??? i have heard that S4 is safer because of the lower compression, but with S5 rotors, i will be able to push alot more boost. i need inputs on that question. also, should i go with 3mm or 2mm seals?? is it possible to push 350 to the wheel hp with stock turbo??? any other suggestions about what i should do while my engine is off?? thanks for reading and replying!
06-12-03, 01:03 PM
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S4 = lower compression which means they should take more boost all else being equal. a stock turbo won't flow that much air in its efficiency range, try a 60-1 or a hybrid of some sort.
06-12-03, 01:08 PM
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if you're staying with the stock turbo, go s5 rotors. Higher compression = more power per PSI of boost. They're lighter too, which means higher revs and more efficiency. If you want to run a ton of boost and are goign with a giant turbo, s4 rotors are lower compression and may be the way to go for you.
06-12-03, 01:14 PM
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No, S4 rotors will be able to push more boost than the S5 because of the lower compression. You really don't needa boost so high to make 350rwhp. Like mentioned, a 60-1 should be able to take you there while being right smack in the middle of it's efficiency range.
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