C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Some questions about Dyno numbers

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Old Aug 27, 2002 | 10:26 PM
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Default Some questions about Dyno numbers

Hi,

Dyno'ed the car at carlisle and was wondering how the numbers compared to other stock L98's. The batery was disconected for a while untill just before dyno time, could this be why the numbers bouncing around a bit. They seemed to be much smoother on the 2nd and 3rd runs. The car has a Marcho chip and K&N.

Here are the #'s





Thanks, sorry about the size, new at posting pics.. :cheers:


[Modified by 89BlackVette, 11:39 AM 8/28/2002]
Hmmm.... Lost the pics somewhere in space.. went over the 5meg limit on villagephotos.com... OOps! :(


[Modified by 89BlackVette, 11:52 AM 8/28/2002]
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Old Aug 28, 2002 | 01:39 AM
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Default Re: Some questions about Dyno numbers (89BlackVette)

thats almost identical to my 85.....i'm only lacking about 12rwhp to match yours. :)
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Old Aug 28, 2002 | 11:44 AM
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Default Re: Some questions about Dyno numbers (89BlackVette)

:cool: :cheers:

That's a little better than mine and I had more than a K&N and Marcho chip.
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Old Aug 28, 2002 | 11:48 AM
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Default Re: Some questions about Dyno numbers (89BlackVette)

221RWHP for pretty much stock L98..............sound good to me. :cheers:
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Old Aug 28, 2002 | 12:16 PM
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You are running a little rich, there are a handful of untapped ponies.
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Old Aug 28, 2002 | 11:23 PM
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Default Re: (scorp508)

Hi,

Is there a way to change the air/fuel on the chip? Craig Marcho and I were playing around with chips at CII and we changed a few things, Its been so long I forgot what we changed. I know we did some timing and fuel cutoff stuff too.....Is there a sensor in the main cat? How do I not damage it while gutting it?

Thanks a bunch :cheers:
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Old Aug 29, 2002 | 12:21 AM
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There is no sensor in the cat. Your oxygen sensor is located in the driver's side exhaust manifold. Well actually it is in the y-pipe, but is right under the manifold.

You probably want to get an hour of dyno time with somebody who can burn chips and either play with fuel pressure if you have an adjustable fuel pressure regulator, or (and the better choice) play with the %change air/ful ratio vs. RPM tables in your chip.
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Old Aug 29, 2002 | 12:31 AM
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Default Re: (scorp508)

You da man!!

Now I gotta find me a dyno.!! Where is one around the NY,MA,CT area?
What is software is needed to program chips? and where can I go to get it?

Thanks!!! :cheers:
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Old Aug 30, 2002 | 12:14 PM
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Default Re: (89BlackVette)

ttt
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Old Aug 30, 2002 | 02:07 PM
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Default Re: (89BlackVette)

I also dynoed mine at Carlisle and I ended up w/ very similar numbers, 234hp and 318 tq :cheers:
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Old Aug 31, 2002 | 12:41 AM
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Default Re: (TA)

when i look for a dyno...i look in my garage! :lol:
[Modified by 1985z51, 10:45 PM 8/30/2002
[Modified by 1985z51, 1:36 AM 8/31/2002]


[Modified by 1985z51, 1:38 AM 8/31/2002]
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Old Aug 31, 2002 | 01:28 AM
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Default Re: Some questions about Dyno numbers (89BlackVette)

Hey Everett! Good to see you around again!

I've still got your file on my hard drive and can make changes for you. I missed the dyno graph though. If you can email it to me, I can figure out how much to change the a/f ratio. cmarcho@swbell.net


Just looked at the bin file to double check, and it's dated May 24th 2001 @ 10:45pm! Brings back memories! I can remember being in the BWC parking lot with everyone.....





[Modified by Marcho Polo, 11:31 PM 8/30/2002]
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Old Aug 31, 2002 | 01:32 AM
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Default Re: Some questions about Dyno numbers (89BlackVette)

I see the numbers in your sig... very similar to mine! My car was stock at the time except for my chip and K&N as well. My car was running way lean though.
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Old Aug 31, 2002 | 11:13 AM
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Default Re: Some questions about Dyno numbers (Marcho Polo)

Just looked at the bin file to double check, and it's dated May 24th 2001 @ 10:45pm! Brings back memories! I can remember being in the BWC parking lot with everyone.....

;) :seeya

I was doing the final test on my chip around that time. I have been very pleased with the chip and it has never given me any problems. I can't wait to try out the re-burn! Thanks Craig!
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