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Old 05-06-2008, 04:12 PM   #41
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paul's 300 run is uncorrected. if he used SAE it would 97% CF factor. or 290rwhp.
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Old 05-06-2008, 04:43 PM   #42
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paul's 300 run is uncorrected. if he used SAE it would 97% CF factor. or 290rwhp.
Sounds like we need to start a Dyno Thread.. I thought SAE correction could only be figured if you knew the air density on the day of the pull.
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Old 05-06-2008, 05:11 PM   #43
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Edit: Y8s is smart I are dumb.

Last edited by johndoe; 05-06-2008 at 06:07 PM.
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Old 05-06-2008, 05:43 PM   #44
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dynojet records raw data and test conditions and you can pick whatever correction factor you want in the software.
i'm gonna quote myself here just because.
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Old 05-06-2008, 06:36 PM   #45
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Sounds like we need to start a Dyno Thread.. I thought SAE correction could only be figured if you knew the air density on the day of the pull.
there is a dyno section.

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dynojet records raw data and test conditions...
cant do much else to fudge the numbers...that's why they are actually best for power pulls. and especially since we've all used the same dyno for the last 5 years now.
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Old 05-07-2008, 01:10 AM   #46
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Edit: Y8s is smart I are dumb.
nice av btw.
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Old 05-07-2008, 01:35 AM   #47
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Thank you, I'm here to entertain
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Old 05-07-2008, 09:16 AM   #48
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Sounds like we need to start a Dyno Thread.. I thought SAE correction could only be figured if you knew the air density on the day of the pull.
we do know the air density that day. that data is recorded with the other dyno data. it was 29.96 in-Hg
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Old 05-07-2008, 09:42 AM   #49
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these are typical results from the BEGi kit using a 2860, this is a '99. I'd hit it.
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Old 05-07-2008, 11:12 AM   #50
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12psi at 3500rpm is ******* perfect. I don't see how anyone could ask anymore from a turbocharger. If you're expecting tire smoke at 2500rpm, you're a moron. My turbo on the corrado spooled at 4000rpm, and it drove just fine. I had no complaints.

What motor?
For not it's a stock 99 with a Begi S4 manifold.
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Old 05-07-2008, 11:40 AM   #51
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So what was the Air Temperature, Absolute Pressure and Vapor Pressure. That is the data you need for SAE Correction. The number you gave sounds like Absolute Pressure but what about the other 2 factors? Does the data show your correction factor in a %?

Like I said this needs to be in another thread because it seems most folks don't really know what you need to do proper corrections. There are dyno places that add in different corrections (like the guy that did mine). The factors above are what you need to know. The air temp you need is the temp of the air going into the intake side of the head. This is hard to messure on an FI car. This is why most correction factors are wrong with FI. They use the outside air temp or the temp of the air in the room with the dyno. Very few cars are set up to meter that temp. I don't have close to all the answer I have way more question than I have answer to this and I don't know the difference between dyno formats. I got very different number on a Dyno Dynamics dyno than I did on a Dynojet.

My car got 113.8 WHP on a Dynojet and 85 whp on a Dyno Dynamics bone stock. Those are very different numbers depending on how they were achived.

On the Dyno Dynamics after the turbo went on gave me a number of 180.2 the guy who ran the dyno told me he uses an 18% correction to imitate a dynojet. That would put your 300 WHP pull to about 246 WHP or your 246 pull to about 202 whp on a Dyno Dynamics. Why the hell are these different formats so different on the number and which ones are real world numbers?

I think itís great that you squeezed those numbers out of your car but are they real world? I guess you will have a better idea once you get it on the other dyno. You have nothing to prove to me although it seems like you feel like you do. What I think you should be concerned about is the dyno guys blowing smoke up your *** just to get you to come back with inflated numbers. If the guy running my dyno can just randomly add 18% then i'm guessing any place can add whatever the hell the want to make the customers happy.
Actually I don't feel I need to prove anything to you. I was simply answering your question about the air density. I am as curious as the next guy as to how the corrections are calculated. I know different dynos will show different hp/tq on the same car. I do feel that is it entirely fair to compare my results to the others that were there using the same dyno.
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Old 05-07-2008, 11:50 AM   #52
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For not it's a stock 99 with a Begi S4 manifold.
for not? It is or is not a stock motor?
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Old 05-07-2008, 12:04 PM   #53
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for not? It is or is not a stock motor?

Goddamn broken keyboard.

For now it's a stock 99 with a Begi S4 manifold.

I have a '94 block torn down getting ETD rods, Wisecos, and ARP treatment everywhere in the next few months. That should let me turn up the fun **** to 20+ psi if the 550cc injectors are up to it.
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Old 05-07-2008, 12:09 PM   #54
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my 550's see 70% duty cycle at my power level. granted i run a 190LPH with stock FPR so my max fuel pressure is like 55 i think.
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Old 05-07-2008, 12:12 PM   #55
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Goddamn broken keyboard.

For now it's a stock 99 with a Begi S4 manifold.

I have a '94 block torn down getting ETD rods, Wisecos, and ARP treatment everywhere in the next few months. That should let me turn up the fun **** to 20+ psi if the 550cc injectors are up to it.
what head in the original example?
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Old 05-07-2008, 12:38 PM   #56
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what head in the original example?
I would imagine a stock 99 head.
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Old 05-07-2008, 01:42 PM   #57
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I would imagine a stock 99 head.
Yeah, all stock '99 motor in a '99 chassis.
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