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E36 /7 Z3 (1996-2002)
E36/7 Z3 roadster and coupe talk with our gurus here.

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  #1  
Old 10-25-2012, 06:27 AM
Zombie1 Zombie1 is offline
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Question Stage 2 RMS supercharger kit on z3 mcoupe

How much horsepower can one expect With this kit on a s52 running 9pounds of boost? Thanks for any responses
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Old 10-25-2012, 01:17 PM
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Palantirion Palantirion is offline
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A better question might be: How long will it last with X psi of boost?
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Old 10-25-2012, 01:39 PM
Zombie1 Zombie1 is offline
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Yes

This is a very good question
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Old 10-25-2012, 01:59 PM
pokeybritches pokeybritches is offline
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9 / 14.7 = 61.7%

...then subtract a little for parasitic losses, heat, and intercooler/piping boost loss. 50% more power would be a good guess.
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Old 10-25-2012, 02:12 PM
Zombie1 Zombie1 is offline
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Talking

Quote:
Originally Posted by pokeybritches View Post
9 / 14.7 = 61.7%

...then subtract a little for parasitic losses, heat, and intercooler/piping boost loss. 50% more power would be a good guess.
Thanks man appreciate the info.
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Old 10-28-2012, 07:30 AM
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Randy Forbes Randy Forbes is offline
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The STG-I Dinan/Vortech that I had on my 99 was estimated to produce 350 BHP (crankshaft) with NickG's software. I'm 99% certain it was running 7-1/2 to 8 psi. It's been a while since I've given it any thought, but I was thinking the next step up was 11 psi (by using a smaller pulley diameter) and that after-cooling was recommended, if not a requirement.

With STG-I and 7-1/2 to 8 psi setup, and given average use (with proper AFR software management) I doubt it would have much, if any effect on the engine's longevity. The biggest problem is that a little boost is like a shot of heroin; it makes you crave more. I call it boostitis, and then you're soon looking at ways to run a top-mount turbo and trying to reign in 600 rwhp
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