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Old 01-04-2008, 04:47 PM   #45
pk2
Registered User
 
Join Date: Aug 2007
Location: Tustin Ca.
Posts: 449
Quote:
Originally Posted by Gary in BR
...its only 6psi.
The last two days with the weather here so cold (its around 30!!) I have seen and felt 6.5psi. and 7 once or twice..
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That,s funny, I noticed a “cold effect” to, was out at night at maybe 45f a couple of times, engine temp half way up to 180. Rolled out of a parking lot in first and then just stomped on it, no clutching, straight line and i just “lit'm up” like I was on ice.
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Quote:
Originally Posted by Gary in BR
...I think its 1.14 times the dyno number but I am not sure at all.

Here is how I did it:
Porsche claims 201 at the crank my base line dyno showed 164

164 times 1.22 is about 201.

226 times 1.22 is 275 crank.

I will assume right off the bat someone has a better way of finding these numbers but this is the "logical" way to me.
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Sounds like sound logic. Good enough for me. That’s about what I came up with using my own variables.

Heres How I did it. Using TPC’s claims of 70-80 hp and shaveing off the lowend by 15%...I get 60hp boost at 4.5 PSI.

60 (boosted hp)/4.5 PSI (boost) =13.3hp per 1 psi boost. So, 13.3 hp x 6psi=79.8 hp. So, about 280hp total

I’m probably dead wrong too.

Glad your at 6 PSI though. To get 7 PSI, my SC revs will probably be past recommended 14krpm's, and may be past the point of diminishing returns (more hp to spin it than it can put out).

Thanks PK
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Last edited by pk2; 01-04-2008 at 04:56 PM.
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