LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Got my car dynoed today

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Old Nov 27, 2004 | 04:06 PM
  #1  
jtk's Avatar
jtk
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Got my car dynoed today

Not bad but the AFR is way lean over 5,000 rpm I havent had time to check fuel presure but I beleve its the programing
by 5,800 the AFR is 14.5 and is 14.0 or higher from 4,600 on up

even with the 14.5 AFR the car dynoed at 312 at the wheels at around 5,500
on the graff you can see the HP curve start geting chopy once the AFR got leaner than 13.5. I was predicting 330 to the wheels so it came up a little short, but if the AFR was proper maybe it would have made more.
Old Nov 27, 2004 | 04:13 PM
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dmoor88's Avatar
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Re: Got my car dynoed today

Is that the newer Edelbrock h/c package? Did you retain the stock rockers like they suggested to keep lift @ .525"?
Old Nov 27, 2004 | 05:52 PM
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jtk
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Re: Got my car dynoed today

yea, I'm using 1.5 crane RR's, .525 was as far as I wanted to go on the lift side
this cam is to large to me also.
Old Nov 27, 2004 | 09:05 PM
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Alvin@pcmforless.com's Avatar
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Re: Got my car dynoed today

If you send it back to me I'll reflash it per your dyno sheet.

Thanks
Alvin
Old Nov 27, 2004 | 10:09 PM
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Re: Got my car dynoed today

dude what happened, my formula dyno'd 268RWHP stock, after pocket porting the heads and 58mm TB with CC306, heh, big dirrence, it was like i didn't even need my 175 shot anymore. wtf?
Old Nov 28, 2004 | 12:11 AM
  #6  
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Re: Got my car dynoed today

Dmoor88- As said in my sig most all parts on my car are edelbrock, I have the heads, cam, headers, and exhaust also a Cat from RK sport that is suposed to be high flow but dosent look it. I also have 24lb accell fuel injectors because the originals got stuck from sitting for over 4 years.
the first dyno pull the oporator shut the car down at only 4,900! were the car made 297 at the wheels! so it is making more power a stock LT1 at power peak.
I'm going to make sure the fuel pressure is not droping off before I go ahead and send the chip back.
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