What plugs you running? It is best to be slightly rich for insurance sake
and have as much timing as possible without pinging. I had rich readings to
but got some ping. I went to a non projected tip one step colder plug and no
ping and runs great.
I don't have an FMU just a aux pump that I have kick on at 2 psi and builds
about 72 psi of pressure. I have 4 degrees pulled out of a custom flash when
I run 10 pounds. I through in two bottles of NOS race formula octane
booster. I get perfect 02 readings up to 10 psi and no ping.
Mike Williams
00 Blk R/T RC - ProCharged
10 psi pulley on for Woodward Dream Cruise :)
----- Original Message -----
From: "Tim Berry" <coolva1@home.com>
To: <dakota-truck@buffnet.net>
Sent: Thursday, August 17, 2000 11:02 PM
Subject: DML: Supercharger Guru's (or anyone else thats a guru with tuning
an engine)
> Okay...
> Long time ago (month?) I put 24# injectors in my truck, and all was good
> (supercharged)
> Stock FMU was 12:1 and i put the 11# pully on it... and now push 8# of
> boost.. It cause the air/fuel ratio to go wayy rich under alot of
boost...
> (almost off the scale)
>
> My question is... With the 12:1 FMU, i didnt need to retard the timing...
> but she ran realllllllly rich under boost..
> I've re-calibrated it to 8:1 (recomended for 24# injectors) and its
staying
> on the rich side, but now I ping with out retarding it..
> Which is better for power? the 12:1 running rich... or the 8:1 which is
> just on the rich side, with some retard (less than 1* per pound of boost)
>
> I'm lost... some times it feels stronger with the retard, other times it
> dosent... HELP!!! =)
> ___________________
> Tim Berry
> Chesapeake, VA
> 97 CC, 4x2, auto, 318
> Best 1/4: 14.10@96.8
> ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ
>
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