I just got off the phone with Sean and here's the low-down:
Timing Retard/Advance Capability: +/- 11 Degrees (They haven't had a call for
retard on the Viper...but it is capable of it)
Injector Pulse Width: +/- 20% "Yes it will...not a problem."
And it just hooks into the MAP port and they have not seen the factory
PCM's "relearn" the modifications...unlike the MSD boxes that the PCM does
relearn.
I'll be ordering the kit from him within the next few days for testing.
I also found out that a few other DML'ers have already ordered them for
testing. Hehehe.... ;)
- Bernd
> Bernd,
> Nice contact! He didnt say how many degrees or % pulback for the inj pw on
> in his reply... Id like to see +/- 10 deg and +/- 20% (greedy)... If you
> call him ask him! Im definitely interested in checking out one of these
> things!
> Bruce
> ----- Original Message -----
> From: <bernd@texas.net>
> To: <dakota-truck@buffnet.net>
> Sent: Wednesday, November 15, 2000 1:22 AM
> Subject: DML: Fwd: Re: Viper A/F Controller - Info
>
>
> >
> > And the testing/investigation begins...
> >
> > - Bernd
> >
> > Forwarded Message:
> > > To: bernd@texas.net
> > > From: Sean L Roe <seanroe@juno.com>
> > > Subject: Re: Viper A/F Controller
> > > Date: Wed, 15 Nov 2000 09:45:54 -0500
> > > -----
> > > Hi Bernd,
> > > On the Viper, the VEC1 specifically corrects the low and high load, what
> > > I will call "factory calibration errors" to give improved throttle
> > > response and power. Our VEC1 can work on any speed density pre-OBD to
> > > current OBD2 system. We were happy to see the results when working on
> the
> > > Dodge Ram last Friday. The only issue that would have to be tested on
> > > your actual vehicle(s) is whether it would give the desired benefit.
> What
> > > our calibrator does is give you the ability to modify the load
> > > calibration of the PCM at low loads and high loads individually. As you
> > > increase fuel (injector duty cycle), you are decreasing spark advance
> > > some. As you are decreasing fuel, you are increasing spark advance some.
> > > On the Viper, this works perfectly for correcting the 18 degrees spark
> > > advance and 11.0 :1 air/fuel ratio factory setting at WOT, especially
> > > when you have no distributor to mechanically adjust timing. We've had
> > > great success with stock, modified normally aspirated and supercharged
> > > Vipers. If you'd like to try one or have any further questions please
> > > feel free to call me at the shop.
> > > Best Regards,
> > > Sean Roe
> > >
> > > On Wed, 15 Nov 2000 07:39:37 -0600 "Bernd D. Ratsch" <bernd@texas.net>
> > > writes:
> > > > Sean,
> > > > I am interested in mating the VEC1 to a 1997+ Dodge Dakota
> > > > (3.9/5.2/5.9L) to
> > > > attempt to control the A/F mixture. The current "project truck" is
> > > > a 1997
> > > > 3.9L with Supercharger and Nitrous, the other is a 1999 Dakota R/T
> > > > with the
> > > > 5.9L and a Supercharger.
> > > >
> > > > Would this system adapt to the Dakota PCM's?
> > > >
> > > > Thanks,
> > > >
> > > > Bernd D. Ratsch
> > > > Pflugerville, TX
> > > > http://lonestar.texas.net/~bernd/Dakota.htm
> > > >
> > > >
> > >
> >
> >
>
>
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