> -----Original Message-----
> From: owner-dakota-truck@bent.twistedbits.net
> [mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Shane
> Moseley
> Sent: Friday, May 30, 2003 6:45 AM
> To: dakota-truck@dakota-truck.net
> Subject: Re: DML: Re: RE: Superchips Dyno Results
>
>
>
> Time to chime in on this thread. I think everyone is in
> agreement that
> being able to alter the factory programming is the best
> route. Cost of
> doing so seems to deter most from this route. I'm not sure
> why nobody
> is talking about an even better (and much cheaper) alternative. I'm
> talking about a totally different computer to COMPLETELY control both
> fuel and spark delivery. I'm talking about a non-Mopar
> alternative. It
>
> simply boils down to spark advance/retard and controlling
> fuel injector
> pulsewidths for the appropriate conditions (be it twin
> cylinder, 3, 4,
> 5, 6, 8, or even 12 cylinders, boosted or NA, nitrous, water
> injection,
> cam, stroked, etc). Total control can only come from a fully
> programmable non-Mopar controller. While the aftermarket controllers
> can do all this - they are a bit costly over the short-term but not
> long-term when compared to multiple re-flashes of factory PCM or
> multiple piggy-back devices (that I agree are just band-aid
> fixes).
The Megasquirt thing is more appropriate for taking older vehicles and
bringing them current with the addition of fuel injection, much like the
FAST and Accel DFI were originally intended to do. None of those are really
appropriate for addition to a current OBD-II truck because 1)it will spit
codes like no tomorrow or 2)You will have to completely remove the PCM from
the equation and then you lose the diagnositic abilites of OBD-II, which is
a desirable feature. FAST and DFI both make attempts, with varying success,
at providing pass through codes, but then you're back to what controls the
tranny and if you want to play with torque converter lockup or shift point
stuff you're back to reflashing the PCM. If you're going to flash the PCM,
why not just address it all at one time and not have to cut a single wire.
The DIY thing is cool and something I would consider if I were still modding
my old Gen I Camaros, but it's not really suitable for new vehicles.
Bob
This archive was generated by hypermail 2b29 : Fri Feb 06 2004 - 11:46:22 EST