Thread: Dyno advice
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stup stup is offline
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Join Date: Sep 2006
Location: scotland
Posts: 248
Not long home from roll and road to check/confirm afr and do a quick power run!
AVA tuning are up here in scotland,this is where i took the car,although they do not specialise in Porsche they have been in the tuning game for decades and there roll and road figures are always towards the conservative side if anything!.
Quite pleased they had a mobile fan to sit on top of intercooler and had large front fan for oil cooler!

I have completed fresh rebuild approx 3000 miles ago with mods i have mentioned on previous posts and car made 383 rear wheel bhp at just over 5000rpm.
This equals approx 425 flywheel bhp in his opinion!

My zeitronix afr was reading slightly leaner than what his equipment was showing so my car is even more richer midrange than i first thought and even safer up top so looks like more bhp can be gained midrange when i tweek more!
My 1992 964 turbo still runs it standard k27 turbo so even though its set just below 1 bar boost and sees this lower down the rpm, it cant maintain this and is only around 0.9 when the peak bhp was acheived,so looks like maybe a bigger turbo some day will be purchased soon to maintain the flow!

Have you guys got an opinion on converting rearwheel hp to flywheel???
and do you use this calculation for torque....torque = 5252 x bhp divided by rpm you acheived max bhp.

Below is quick mobile camera videos for your viewing.
Steve(Biglicks) has kindly posted these on his youtube account for me

session no.1 is a stepped run with flame at end http://www.youtube.com/watch?v=LawJFxuevJU

no.2 is the run he acheived figures http://www.youtube.com/watch?v=tEnq0o6dnaI


no.3 is my headers cooling down AFTER runs(no wonder you hear of headers cracking) http://www.youtube.com/watch?v=xVdYBJH7RRg

Last edited by stup; 03-28-2008 at 03:25 PM..
Old 03-28-2008, 03:03 PM
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