I'm not sure what FMU stands for.. Fuel Measurement Unit?
Anyways the FMU raises the Fuel pressure a certain amount, per pound of
boost... for example, my FMU is a 12:1 which means for every pound of
boost I make, it raises the fuel pressure 12 pounds...
You can see pics at www.geocities.com/coolva/sc.html
The BTM is a Boost Timing Master (made my MSD)
It retards the timing 0-3 degrees (you set it with a knob, remotely mounted)
per pound of boost...
With the Hypertech and 19# injectors, I had to have it set about 1/2* per
pound of boost....
You can see it a little (behind the air hat area) in the pics on the page...
Tim Berry
Chesapeake, VA
> You use the Mopar Performance computer WITH a supercharger? 8^O
> I didn't think that was possible since the MP computer advances the
> timing. Obviously it works, though, since you are successful with it.
> What are the FMU and BTM?
>
> Thanks!
>
> Richard in San Antonio
>
>
>
>
> On Thu, 3 Aug 2000 14:55:55 -0400 "Tim Berry" <coolva1@home.com> writes:
> > Thats why I have 24# injectors, and a A/F meter, and a 12:1 FMU for
> > =)
> > trust me.. it wont lean out.. and I have a BTM fer detonation...
> > Currently I am using the MP Puter, and Hypertech, an have no pinging
> > (i did with the stock injectors).. only had to turn the BTM up to 1/2*
> per
> > pound of boost...
> >
> > I'll be ok on the fuel part... =)
> >
> > Tim Berry
> > Chesapeake, VA
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