From: Adam Bradley <firstname.lastname@example.org>
To: Patrick P. Castronovo <email@example.com>; snyler
<firstname.lastname@example.org>; Ryan, Richard <RRyan@frk.com>; 'datsunmike'
<email@example.com>; 'Datsun Roadsters'
Date: Friday, February 09, 2001 3:31 PM
Subject: Re: Gas Mileage
>What cruise control on a Datsun Roadster???
>--- "Patrick P. Castronovo" <firstname.lastname@example.org> wrote:
>> Well you could always engage the Cruise Control to maintain speed.
>> -----Original Message-----
>> From: snyler <email@example.com>
>> To: Ryan, Richard <RRyan@frk.com>; 'datsunmike'
>> 'Datsun Roadsters' <firstname.lastname@example.org>
>> 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
>> >>produce 30 hp most efficiently.
>> >>And the answer is: Beats the hell outta me. I don't have any
>> >>design info that I can use to get the answer. Some have commented
>> >>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
>> >say 35 miles out, and 35 miles back. Use a gas station as your base
>> >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.
>> >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
>> >spin the motor 56,000 more times on our 70 mile, 1 hour trip. Hard
>> >imagine that your foot would be lighter on the gas in 4th than 5th
>> >maintain 70 mph. I'm guessing you'd do better in 5th, but only
>> >experimentation will tell us for sure.
>> >Marc Tyler
>> >Animal Firm
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