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Crippler's Avatar
 
Join Date: Dec 2001
Location: New Brunswick, Canada
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Dyno Results

Well I got the Callaway dynoed today. I was running about 13lbs of boost and only hit 192whp and 202ft'lbs. About the same as a stock 951. I was also running pig rich and have a pretty dead turbo. Also had too much timing retard, however I learned very much on what needs to be done. After some more tuning and rebuilding the turbo i hope to hit around 250whp or more. I also want to get rid of the stock air box and get a descent exhaust made up. anyways I will post the graph and the video later this week.
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1984 - Porsche 944

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Last edited by Crippler; 08-17-2003 at 02:58 PM..
Old 08-17-2003, 02:56 PM
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Cool, that's a start.
Old 08-17-2003, 04:51 PM
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Running the stock exhaust? Ouch, there's your biggest problem

Get a nice 2.5" or 3" mandrel bent system under there, a straight through muffler and a high flow cat, and you'll probably gain 20hp to the ground from that alone(much quicker spool up). Also getting rid of the stock air box will allow for a little quicker response from the turbo.


Advancing your timing could of helped somewhat on your richness problem, and should of shown up as a few more ponies on the dyno. They didn't play with your timing?
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Old 08-18-2003, 06:44 AM
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how much boost can stock turbos handle?
and is 13psi stock boost?
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Old 08-18-2003, 09:30 AM
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You will definitely see an improvement with a better exhaust....

You should be pretty close to hitting the 250rwhp once you have worked through all the tuning....

As I recall Mark was running 15 psi....... he ran 18 psi but the turbo ran out of breath in the high rpms.....

At what rpms did you hit those numbers?
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Old 08-18-2003, 11:19 AM
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Good news my turbo rebuild kit showed up today.

The exhaust isn't stock, The cat is hollow and I have a straight through muffler, but is all stock diameter. I plan on getting a 3in system made next spring, however there is no where around here that does mandrel bends

AE: I hit peak power at about 4700rpm and torque at about 5200rpm. My low end power was killed by my bad turbo, wasn't spooling fast
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Old 08-18-2003, 12:18 PM
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