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Old 06-19-2004, 09:16 PM   #1
SlidewaysSTi
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Default Got the STi dynoed today

I have a 2004 STi with Perrin Short Ram intake, Down pipe, and pulley, GT-Spec Header, ported wastegate, Esplier JTC 500 exhaust no cats. I got the car dynoed at Horsepower House in Lexington Kentucky, the dyno was a Mustang Dynamometer MD-AWD-500. I put down 232.2 Hp at 5750RPM and 241.6 Tq to the wheels at 4500 RPM.
What I was wanting to know is this a high or low number considering the type of dyno? I just figured with the modds I had that the numbers would be higher. The guys at the shop told me I really needed some sort of engine management that ther was anywhere from 20 to 40 more Hp hidden in the computer. If anyone could guide me on if this is true please feel free to post you thoughts and oppinions. I will post the dyno graphs, boost plots, and AFRs tomorrow evening.
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Old 06-19-2004, 09:26 PM   #2
turbo2nr
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dynos are not all alike. they are used for checking the effects of changes to car, playing around with electronics, trying different heat range plugs, trying different bolt on parts to see what works. if a drag strip is not avaliable to do "test and tune" some people use a dyno. real world results are what we are after, and what better place to test than the real world? dont let a number mean anything to you. if you were looking for a number, just send me $100 and i will send you the number you want.
i know you were looking for some improvement over a stock set-up, but a before and after drag run would be better. mph is a good indication of hp and et is 3/4 hp and 1/4 launch or traction
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Old 06-19-2004, 09:35 PM   #3
big_adventure
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Quote:
Originally posted by turbo2nr
dynos are not all alike. they are used for checking the effects of changes to car, playing around with electronics, trying different heat range plugs, trying different bolt on parts to see what works.
What he said, and:

Dynos are a wonderful tuning tool, and probably to only way to "safely" extract maximum power from your setup. That said, only comparing your car to your car on a dyno, on the same day, in the same hour will give you a truly accurate comparison. Sooooo many factors will determine the outcome of a dyno pull.

Try to find someone with the same car and similar mods who has dyno'd on THAT EXACT DYNO, not that type. Then you'll have a nice comparison.

Here's the thing: do you drive daily with your car strapped to a dyno? Me neither. Do you like the way your car feels? Does it feel faster than stock? Don't worry, then, and be happy.

After all that, no, those numbers suck and you should shoot your tuner.

Yes, my tongue was firmly planted in my cheek for that. No killing tuners. Bad.

-Sean
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Old 06-19-2004, 09:42 PM   #4
V6TurboTA
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Quote:
Originally posted by big_adventure


After all that, no, those numbers suck and you should shoot your tuner.

Yes, my tongue was firmly planted in my cheek for that. No killing tuners. Bad.

-Sean


~v6
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Old 06-21-2004, 12:49 AM   #5
beaudawg
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Default Re: Got the STi dynoed today

Quote:
Originally posted by SlidewaysSTi
The guys at the shop told me I really needed some sort of engine management that ther was anywhere from 20 to 40 more Hp hidden in the computer. If anyone could guide me on if this is true please feel free to post you thoughts and oppinions.
Yes, some EM will help you greatly. UTEC
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Old 06-21-2004, 12:53 AM   #6
kidatari
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That is a pretty decent on a Mustang dyno. You should go with a retune next, I'd say go for a reflash with ECUtek, or something like that. You are nowhere near the point of needing a UTEC, as beaudog says.
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Old 06-21-2004, 08:26 AM   #7
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Quote:
Originally posted by kidatari
That is a pretty decent on a Mustang dyno. You should go with a retune next, I'd say go for a reflash with ECUtek, or something like that. You are nowhere near the point of needing a UTEC, as beaudog says.

What is the difference between a reflash and a UTEC.









The UTEC is user tunable is about the only real difference. If you want EM they all do the same thing only in different ways.

TMS
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Old 06-21-2004, 09:43 AM   #8
modvp
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I think an important question would be...what do a stock STI put down on that dyno?
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Old 06-21-2004, 09:59 AM   #9
F22-Raptor
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That particular dyno reads low. AND for future reference....DO NOT TAKE YOUR CAR TO HORSEPOWER HOUSE TO BE TUNED. THEY CAN'T TUNE. IF YOU WANT MORE DETAILS PM ME.
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Old 06-21-2004, 10:04 AM   #10
big_adventure
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Quote:
Originally posted by big_adventure


After all that, no, those numbers suck and you should shoot your tuner.

Yes, my tongue was firmly planted in my cheek for that. No killing tuners. Bad.

So I guess I was right the first time?

-Sean
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Old 06-21-2004, 02:58 PM   #11
Silver-Bolt
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UTEC will make all the difference in the world if it is properly tuned. On a Mustange dyno I did 301hp/297tq. With a lot less mods. 30hp & 40tq are typical UTEC gains I have witnessed on several cars.
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Old 06-21-2004, 08:52 PM   #12
obsidianSTI
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I put down 273hp and 273 tq with a turboback. The numbers do look a little low for your setup. you definately need some engine management. I know my air/fuel was seriously out of whack on my run so I'm sure yours is too.
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Old 06-21-2004, 11:04 PM   #13
SlidewaysSTi
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I have the dyno sheets scanned in but I do not know how to post them to here for everyone. Any help would be appreciated?
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Old 06-22-2004, 02:23 AM   #14
kidatari
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The UTEC may be user tunable, but therein lies the issue. Most people have no idea where to start tuning, so it's much better for most people to get a reflash, so they don't have the option of fiddling with things that they shouldn't

If someone is running a more highly modded vehicle, and knows what they're doing, UTEC isn't a bad idea. See what I mean?
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Old 06-23-2004, 11:47 PM   #15
Black-X
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Quote:
Originally posted by F22-Raptor
That particular dyno reads low. AND for future reference....DO NOT TAKE YOUR CAR TO HORSEPOWER HOUSE TO BE TUNED. THEY CAN'T TUNE. IF YOU WANT MORE DETAILS PM ME.

i totally agree with this statement! you can pm me also if you need more details as well. and if you need even more details you can pm 02R6, BlckRabbt, and... well, i think you get the point.
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