SpeedPro comments

[Bruce Plecan]

How did you, or did you isolate the CTS (and the other inputs) from the oem
ecm from the Speedpro?.
Bruce


> I use the bank to bank, so i don't have any personal experience with the
> SEFI version... i can tell you that the box has both crank and cam sensor
> inputs and the wiring harness has connectors for both. neither get used
for
> the bank to bank. The install manual says that these sensors are only
needed
> for SEFI inductive pickup applications. There is also a crank ref,
distrtn,
> and a couple other ignition related signals that get used for optispark,
> TFI, and DIS applications...  you'd probably be best talking to a dealer
or
> speedpro directly to get more detail. when i first started looking at the
> systems the shops asked me what kind of power i was looking to make. i
said
> around 800hp. they said not to bother with SEFI. they said if i was making
> 1400 and wanted to make 1420 then it would be worth it. The bank to bank
> really does a good job. It seems much more advanced than a batch fire
> system. The harness (aftermarket, not from felpro) to make the optispark
> work with SEFI was about $1500 plus the SEFI computer cost more. so i
> quickly canned that idea!
>
> >
> > 1) crank & cam angle inputs:  Does the Felpro sequential have both?  Can
> the
> > crank angle support multi-tooth wheel, or just a single crank trigger
like
> > MSD, etc setups?  Does the sefi have a cam sensor?  Can you even do
> > sequential fuel injection without it?
> >
>
> what kind of TPS is it? if it's a 0-5V, 3-wire TPS it should work fine.
For
> the 5.0 ford we did we just spliced on the ford TPS connector onto the
> felpro harness and it worked fine. But in general it seems that you have
to
> run GM compatible sensors - air temp, coolant temp, iac, map.
>
> > 2) TPS:  Does it expect to see 0-5v and that's it?  My current TPS sends
> > 0-5v, and I would like to not buy another.
> >
>
> i'm using 75lb/hr and the 5.0 is using 83lb/hr. the system works great
with
> both. My friend is using the 83's on a stock cammed/headed/intaked 302 and
> the thing still idles fine. i've heard that the bank to bank can actually
> improve the idle with huge injectors vs. the SEFI.
>
> > 3) Injectors: I assume the speedpro can use peak&hold injectors,
correct?
> I
> > have bosch 1000cc/min, any experience with big injectors?
> >
>
> on my car (LT1 Z28) i kept the factory computer for A/C, ABS, gauges, etc.
> The speedpro runs the core engine stuff like injectors, ignition, and iac.
> The factory computer actually still does the fuel pump and fans (so they
> kick on with the a/c, for example).
>
> > My goal is too keep the factory ECU around, thinking it's doing the
work,
> > when infact the speedpro is firing the injectors and coils.  There is
just
> > too much else the factory ecu does, so I don't want to give it up
> > completely.
> >
>
>
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