2nd Generation Specific 1986-1992 Discussion

How obtainable is 300RWHP from s5 TII?

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Old 06-12-2006, 04:00 AM
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im scared of over boosting and blowing something. Thats why i wanna keep it at like 10psi. I want to be able to drive daily on 300rwhp not have it turn on and off. This is a work in progress so its not required to all be done at once. I was going with a VMIC as the first upgrade and some pullies and stuff. Then upgrade the turbo.
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Old 06-12-2006, 12:58 PM
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OOOK, but 10psi wont net 300whp...
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Old 06-12-2006, 07:07 PM
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Originally Posted by One320B' post='823747' date='Jun 12 2006, 10:58 AM

OOOK, but 10psi wont net 300whp...




im new to the turbo rotary thing. It was a N/A prior to engine swap. how high can you safly boost?
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Old 06-12-2006, 10:47 PM
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Keep it stock boost on the stock fuel system.
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Old 06-13-2006, 11:55 AM
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yea, i agree with ronin, keep it stock til u know the car a bit better. Was the chassis N/A before the swap, or is it a 6 port N/A block with a turbo slapped on the side?
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Old 06-13-2006, 08:02 PM
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5psi 10psi 25psi dont make a damn. Tune it and build it right. Porting is over rated in my opinion well over 550whp can be had on stock ports.



10psi will net 300whp on stock ports with a gt35R :-)
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Old 06-13-2006, 08:35 PM
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I run 10psi with a stock turbo ECU. No emmisions, and a cone air filter.



the wastegate is ported though.
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Old 06-13-2006, 10:11 PM
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FC Rotorhead, have you done anything to the fuel system? the increased flow and boost must be begging for some more fuel or bigger secondaries, since the stockers start out at damn close to 60% duty cycle
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Old 07-19-2006, 04:40 AM
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man sorry for the REAL late reply...



I have nothing done to the fuel system. Its completely stock.

But I know it runs richer than hell because I only get like 250km per tank....... and I always smell like gas everytime I get out of my car. haha but yes, I agree with you, I may need bigger secondaries to be on the safe side.



A standalone will be something i will be looking at really soon.
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Old 07-20-2006, 12:24 PM
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its not runing rich I can promise you that. 10psi is maxing out the stock fuel system. You realy should put an FD pump in there at least.
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