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
Get personalized email addresses from Yahoo! Mail - only $35
a year! http://personal.mail.yahoo.com/
|