[karleric]

Numbers

Dyno: Mustang Dyno
Tuner: Mike @ GST Motorsports
Wheel HP: 277.1
Wheel TQ: 296.9
Ambient Temp: ~61
Elevation: 112 ft.

Car Info

Year: 2007 STI
Mileage: ~27k
Engine Management: Protune by Mike Warfield / GST / Cobb AP for crappy CA 91 octane
Turbo: Stock
Intercooler: Stock
Meth Kit: None
Injectors: Stock
Intake: SPT
Headers: Stock
Uppipe: Stock
Downpipe: Generic catted
Exhaust: Greddy Evo2

Other Power Mods: Walbro GS342 255lph FP, GM 3 port solenoid

[cusco]

nice, was this a conservative tune? what is your boost levels?

[karleric]

Originally Posted by cusco

nice, was this a conservative tune? what is your boost levels?

19.5 PSI peak and tapering to 16 PSI at redline.

The tune that Mike Warfield put on there really does make the car seem like a totally new car. It's a LOT more responsive at every gear! Prior to the tune, I had to downshift if I wanted to speed up. Now it's just smooth power delivery!

[Roadracing]

Good numbers from Mikes dyno.

[karleric]

Originally Posted by Roadracing

Good numbers from Mikes dyno.

I hope so! Since I got the Walbro installed we weren't able to take a baseline first.

Either way, I'm quite pleased with the result thus far.

[speedindustry]

This is not a criticism, but a question. He used 3400/14.8 for the weight/load coefficient. According to my records, which unfortunately only go up to 2005, the weight should be at 3625/15.7 for Sti models. These coefficients determine how hard the dyno pushes back.

[karleric]

Originally Posted by speedindustry

This is not a criticism, but a question. He used 3400/14.8 for the weight/load coefficient. According to my records, which unfortunately only go up to 2005, the weight should be at 3625/15.7 for Sti models. These coefficients determine how hard the dyno pushes back.

Not sure. This is all kinda new to me. But good to know that's what those values do. Is there a particular algorithm or formula I can plug in to more closely determine the correct values?

[WRXBOOST10]

Nice numbers! hope i hit the same power when i get protuned.

[karleric]

Originally Posted by WRXBOOST10

Nice numbers! hope i hit the same power when i get protuned.

Thanks. I've been pretty happy (for now - especially with gas prices where they're at).

RE: the car's weight. I was looking at the '07 Imprezza brochure (while sitting in the thinking room ) and I saw the curb weight listed was 3351 lbs for the STI & STI Ltd.

[speedindustry]

Originally Posted by karleric

Thanks. I've been pretty happy (for now - especially with gas prices where they're at).

RE: the car's weight. I was looking at the '07 Imprezza brochure (while sitting in the thinking room ) and I saw the curb weight listed was 3351 lbs for the STI & STI Ltd.

The curb weight is different from the weight Mustang uses to simulate load.

[karleric]

Originally Posted by speedindustry

The curb weight is different from the weight Mustang uses to simulate load.

Ahhh...got it...as an aside - it seems there's a lot of "black magic" in dyno numbers based on different dyno models and other factors...it never seems like one can make an apples to apples comparison unless every car is tested on the same dyno? With some tuners claiming other's dynos read high or low, etc.