2.66 x 3.42 x 345 = "only" 3,139. Of course, that's peak torque. Now go look
at the torque curves...
KeS
> -----Original Message-----
> From: owner-ba-autox@autox.team.net
> [mailto:owner-ba-autox@autox.team.net]On Behalf Of Michael R. Clements
> Sent: Friday, May 05, 2000 16:24
> To: lollipop@ricochet.net
> Cc: ba-autox@autox.team.net
> Subject: Re: best line
>
>
> Sure, the rear end ratio would be included if one is measuring
> the total gear ratio from the crankshaft to the wheel. That would
> be the transmission ratio multiplied by the differential ratio.
> For example, in my RX-7 1st gear is 3.483 and 4.1, which amounts
> to 14.2803, which means 225 ft. lbs. at the crank is converted to
> 3,213 ft. lbs. at the wheel. Incidentally, divide that torque by
> the wheel radius, divide by the mass of the car and you have more
> than 1 g of acceleration in 1st gear which thanks to lofty rotary
> redlines goes to just over 40 mph.
>
> Too bad I can't get it into 1st when it's rolling anything faster
> than 10 miles per hour.
>
> Pat Kelly wrote:
> >
> > Then you toss in the rearend ratios. For instance, for years we ran a
> > 4:55 rear. When we rebuilt the car, we went to a shorter (4:88) and
> > found we had to shift too often, losing time. So we went to a 4:11
> > because the new engine pulls so well, and heaven has arrived, at least
> > as long as this Rebello engine survives.
> > --Pat K
> > "Michael R. Clements" wrote:
> >
> > > Scot Zediker wrote:
> > >
> > > > Guess they're geared a
> > > > lot higher than my car,
> > >
> > > Which gave me a major epiphany (thank you Scot).
> > >
> > > This touches on a confusion I've always had about gearing
> > > terminology. From an engineer's point of view, the total gear
> > > ratio is measured as the rate of rotation of the crankshaft
> > > divided by the rate of rotation of the wheel of the car. That
> > > means 1st is higher than 2nd, etc.
> > >
> > > But often times, the colloquial terminology is the opposite. As
> > > an engineer, one would say that a Vette (for example) is geared
> > > lower than a Miata (for example). However, I've heard people
> > > (Scot, for example) say the opposite while meaning the same
> > > thing. That means the layman's meaning, and the engineer's
> > > meaning, of the same word, may be opposites.
> > >
> > > So in layman's terms,
> > >
> > > 1. Is 1st gear higher or lower than 2nd gear?
> > >
> > > 2. Is 1st gear taller or shorter than 2nd gear?
> > >
> > > 3. Is 1st gear "bigger" or "smaller" than 2nd gear?
> > >
> > > P.S.
> > >
> > > I think I'm finally understanding why people argue about power
> > > and torque so much -- they actually agree, but they attach
> > > opposite meanings to the same words!
> > >
> > > --
> > > Michael R. Clements
> > > mrc01@flash.net
> > > We must make clear that communism and the governments it now
> > > controls are enemies of every man on Earth who is or wants to be
> > > free.
> > > -- Barry Goldwater
>
> --
> Michael R. Clements
> mrc01@flash.net
> We must make clear that communism and the governments it now
> controls are enemies of every man on Earth who is or wants to be
> free.
> -- Barry Goldwater
>
>
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