..or maybe not.
Gary McCormick
San Jose, CA
"Patrick P. Castronovo" wrote:
> Gotcha!!!!!
>
> -----Original Message-----
> From: Adam Bradley <ambradley@yahoo.com>
> To: Patrick P. Castronovo <slick1@mohaveaz.com>; snyler
> <marc@animalfirm.com>; Ryan, Richard <RRyan@frk.com>; 'datsunmike'
> <datsunmike@nyc.rr.com>; 'Datsun Roadsters'
> <datsun-roadsters@autox.team.net>
> Date: Friday, February 09, 2001 3:31 PM
> Subject: Re: Gas Mileage
>
> >What cruise control on a Datsun Roadster???
> >
> >
> >--- "Patrick P. Castronovo" <slick1@mohaveaz.com> wrote:
> >> Well you could always engage the Cruise Control to maintain speed.
> >>
> >> -----Original Message-----
> >> From: snyler <marc@animalfirm.com>
> >> To: Ryan, Richard <RRyan@frk.com>; 'datsunmike'
> >> <datsunmike@nyc.rr.com>;
> >> 'Datsun Roadsters' <datsun-roadsters@autox.team.net>
> >> Date: Friday, February 09, 2001 2:23 PM
> >> Subject: RE: Gas Mileage
> >>
> >>
> >> >Ryan, Richard wrote
> >> >
> >> >>So the real question is: At which rpm (3,200 or 4,000) does the
> >> engine
> >> >>produce 30 hp most efficiently.
> >> >>
> >> >>And the answer is: Beats the hell outta me. I don't have any
> >> engine
> >> >>design info that I can use to get the answer. Some have commented
> >> that
> >> >>changing axle ratios and/or tire sizes will change the equation.
> >> That is
> >> >>correct because changes the 2 rpm points and the efficiency will be
> >> >>different at those rpm.
> >> >Find out empirically. Plot out a flat level run on the interstate
> >> of,
> >> >say 35 miles out, and 35 miles back. Use a gas station as your base
> >> camp.
> >> >Fill the tank. Make your first run at 70 mph in 4th gear, 35 mi.
> >> out, 35
> >> >mi back. Fill the tank at the same pump and record how much fuel it
> >> >takes. Make run #2 :35 mi out, 35 mi back, at 70 mph in 5th gear.
> >> Fill
> >> >up at the same pump and record how much fuel it takes. The run that
> >> >takes less fuel is obviously the more efficient. The 4th gear run
> >> will
> >> >spin the motor 56,000 more times on our 70 mile, 1 hour trip. Hard
> >> to
> >> >imagine that your foot would be lighter on the gas in 4th than 5th
> >> to
> >> >maintain 70 mph. I'm guessing you'd do better in 5th, but only
> >> >experimentation will tell us for sure.
> >> >
> >> >-marc
> >> >
> >>
> >>==========================================================================
> >> >Marc Tyler
> >> >Designer,
> >> >Animal Firm
> >> >830-324-6578
> >> >www.animalfirm.com
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