Indexing the distributor sets the injector timing...not ignition timing.
You are correct in the fact that the PCM controls timing...you can turn
the distributor all you want, it won't affect ignition timing.
http://www.speedtweaks.net/Tips_Tricks.htm#DistIndex
FMU = Fuel Metering Unit. A device that, when under boost, helps richen
the fuel mixture by allowing the auxilliary fuel pump to increase fuel
pressure...therefore adding more fuel according to boost (monitored via
a vacuum signal).
- Bernd
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net] On Behalf Of Chad Evans
Sent: Monday, October 08, 2001 11:08 PM
To: dakota-truck@buffnet.net
Subject: Re: DML: RE: it was a sad day at the track friday nite
excuse me for being a stupid on this question. i thought computer set
timing
and all that. how do you index our distributor.last dumb question for
the
night, what the heck is an fmu plate.
>From: "Bernd D. Ratsch" <bernd@texas.net>
>Reply-To: dakota-truck@buffnet.net
>To: dakota-truck@buffnet.net
>Subject: DML: RE: it was a sad day at the track friday nite
>Date: Mon, 08 Oct 2001 22:08:54 -0500
>
>
>Chuong...I ran a 15.2 with all my stuff. My distributor index is set
>at 6. As for the rich condition, what injectors, mods, boost level
>(pulley), etc. On the V6, you can run with the factory injectors with
>a 10:1 FMU plate (factory is a 12:1).
>
>- Bernd
>
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