Tuning advice sought -

[ECMnut at aol.com]

In a message dated 5/25/00 7:28:23 PM Eastern Daylight Time, 
btisdale at cybersol.com writes:
 
>  Trying to develop a good 40# chip for my modded Syclone, 749 ECU.  Mods =
>  heads, cam, turbo and all the hardware needed to monitor stuff and to
>  assure adequate fuel flow.
  
We should be swapping notes.  
Funny, I put 40s in last night and I worked with 
1.  (F30) Base Pulse VE vs RPM
2.  (F29) Base Pulse VE vs RPM And MAP 
getting similar results.  Not rich like I'd hoped, and I'm seeing
12+ degrees of knock retard   I have something else happening that
I haven't nailed down just yet..  I took my 30# injectors out because
they could no longer give me diacom O2 readings in the upper 900's.
Repalcing the O2 sensor gave me the exact same low 900 readings,
so I replaced the 30# injectors with 40's and the O2 numbers haven't gone up.
I have a fresh fuel filter and a fairly recent 255 liter Walbro fuel pump.
I'll do a compression test and have a look at the plugs in the AM.
I think it may have ingested part of a TB air foil (ouch) in the last year..
I found the top half of the air foil laying in front of one of the TB 
butterflies.
I'll let you know what he morning brings.
 Mike V

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