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New dyno pull, how are my numbers?

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Old 06-28-2007 | 01:22 AM
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Default New dyno pull, how are my numbers?

The boost line fell off half way through, so thats why it all of a sudden goes to 0 boost The other run went up to 17 pounds and fell off a little bit but not to badly. I would assume its because of the stock wastegate.

Ok, Here are the engine mods:
951max chips
LBE
3 bar FPR
2 wastegate shims
Forge DV
3" exhaust
test pipe
~17 lbs

Mustang Dyno
RWHP: 235.4 @ 4640RPM
RWTQ: 307.7 @ 3570RPM

AFRS went from 13.4 steadily to 12.0

Hows that sound? About right? The hp number seemed a touch low. It was really hot today, may have had something to do with it

Jeff



Last edited by jmporsche944; 06-28-2007 at 02:29 PM.
Old 06-28-2007 | 11:12 AM
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Jeff,

Is that the stage III max chips?
Old 06-28-2007 | 11:14 AM
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Shouldn't max HP come in much later? Like 800 rpm's up in the range?
Old 06-28-2007 | 12:28 PM
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Alex - Im not sure, maybe russell will chime into this thread.
Old 06-28-2007 | 02:17 PM
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Jeff:

Post the chart pal! Then everyone can help you analyze it.

Old 06-28-2007 | 02:24 PM
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HP seems more than a touch low, and more than a touch early. Are you holding boost in the upper RPMs? Is your torque doing a serious nose dive around 4000 RPM?
Old 06-28-2007 | 02:31 PM
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I didnt get an actual chart this time, I posted up what Ive got in the original post.
Old 06-28-2007 | 02:33 PM
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Yo Jeff i got a scanner @ home come over and we can scan it!
Old 06-28-2007 | 02:38 PM
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Is that far right column your boost pressure? Maybe you blew their boost gauge line off your car and started leaking boost at 3652RPM.

Edit--- Upon rereading of your first post I guess that's exactly what happened.
Old 06-28-2007 | 02:41 PM
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It is, but we did a run after that, with the boost line reconnected, and the numbers were slightly lower (although it did hit 17-18 pounds). He said since everything was heating up it would effect the numbers.
Old 06-28-2007 | 02:47 PM
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what kind of fans where they useing? where was it aimed @? how was your temp guage? today was actually a bad day to dyno
Old 06-28-2007 | 02:50 PM
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Also on a side note, if you were blowing charge air out of the manifold after you metered it, those a/f ratios will be artificially rich.
Old 06-28-2007 | 02:52 PM
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They were using a big *** fan pointed at the front of the car, temp guage was fine.
Old 06-28-2007 | 03:04 PM
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Originally Posted by jmporsche944
Alex - Im not sure, maybe russell will chime into this thread.
Yep, DME III. The boost AFR are screwy because the line blew off. Considering that, looks pretty darn good.

Old 06-28-2007 | 03:08 PM
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Good, are the numbers on par with what you have seen in the past Russell?

To be completly honest, I dont care about numbers that much unless there is a PROBLEM causing it to be not running right. The car pulls damn hard IMO, which is good enough for me


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