Lean Cruise

[Bruce Plecan]

Modern Musclecar is now part of Ramchargers and very much alive.  Guess it
is point of view thou, they are still operating under MM as of a week or so
ago.  Least I hope so LOL (waiting on a backordered part)...
Will be reopening under the new banner real soon.   Seems like the
transistion is awkward from what I've seen at the moment.  Mr Bailey is
still very much doing chips for MM, and Bailey Eng., is the designer
manufacturer of the Translator and Translator Plus, MAF converters.

I've gotten 25+ just using the 14.7 AFR in my GN.  That also, included some
spirited driving.  Just to hard to give into temptation. <g>.....

Hmm, makes the 46 alot more beliveable.
Like I've think I've said before really hard for any car to be fully
optimized without a certain amount of tinkering.
My goal is hitting 30s (MPG), and 12 sec ETs.
Bruce



> The El Nacional was in the Dec. 1994 issue of Car Craft. Jan. 1996 Car
Craft
> is the issue for the '95 RSE. Heath Elmer's '87 T Type got 46.17 mph  on
the
> fuel economy part of the test. We figured the guys from Car Craft got
> hoodooed by Heath, no offense to him but being from NASCAR country we are
> very familar with the idea that it's not illegal if you don't get caught.
> Later that year at Bowling Green, Ky. for the Gran Sport club national
meet,
> got to talk to Bob Bailey,
> the chip guru then associated with now defunct Modern Musclecar from the
> Detroit area about this particular gas milage event. Having seen stone
stock
> GN's knock down 25/27 mpg at 55-75 mph cruise speeds, 46 mpg is pretty far
> out of line. Tom Chou of Thrasher Performance stopped at our discussion
> group having overheard the subject matter and incredulous comments. He
said
> that he was responsible for the chip in Heath's car and it was for real.
He
> also said it took a tremendous amount of time and "tinkering" to get the
car
> to do that kind of milage in a very narrow speed window. He said that he
> originally did this lean burn on his car but that he had found that the
> differences between one auto and the next made this type of tuning
virtually
> impossible for a "one size fits all" senario. Each car had to be tuned
> indiviually to the Hiway mode for max benefit and it was just too time
> comsuming to do commercially. He did not give up any hints as to exactly
> what he did but he is the fellow responsible for the "Thrasher" line of
> chips.
>     Sorry for the length. I think this is an extremely interesting thread
of
> information. My 2 pesos worth.
> Later, Mark Riley
> ----- Original Message -----
> From: "Bruce Plecan" <nacelp at bright.net>
> To: <gmecm at diy-efi.org>
> Sent: Saturday, January 13, 2001 5:39 PM
> Subject: Re: Lean Cruise>
> >
> > For the lack of anything better to do I burnt a few different AFR cruise
> > chips, just need some decent weather.
> > At 14.7:1, I got 25.6 MPG.
> > So 16.2 and going leaner might get some relly good mileage.
> > Just luv em 12 sec family sedans, that get about 30 MPG
> > Bruce
> >    Lil guys like it too LOL
> >
> >
> > > Bruce:  I don't remember where but somewhere I read that
> > > a guy was running a GN engine in an El Camino and to get
> > > fuel economy he was supposedly running 18.0 to 1!?
> > > Might be interesting to see what that waste spark ign will light!
> > > Mark
> >
> > > From: "Bruce Plecan" nacelp at bright.net
> > > > I'd thought 16.2 would be about the limit, but alias wrong again.
> > > > I'm to that, and motor is happy as a lark. (ie real happy)
> > > > With a low CR engine already running a bunch of timing.
> > > > What are folks running for lean cruise ratios?.
> > > > Bruce
>
>
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