[Shotimes] Dyno charts

[D Potter]

I'd guess they'll be looking to build low-rpm torque motors for the CVT's.
No sense in putting up with rotational friction losses of higher rpm motors
when they can just run the motor in a range of 1000 rpm all the time. No
more maximizing the compromise between torque and range, you'll only need to
build for torque now. Truck motors for the lot of ya!

DP



----- Original Message -----
From: "Ron Porter" <ronporter@prodigy.net>
To: <shotimes@autox.team.net>
Sent: Friday, January 17, 2003 12:56 PM
Subject: RE: [Shotimes] Dyno charts


> In the situation of a CVT, running the engine at peak torque would be the
> best solution, I believe. Peak torque is where the engine is running most
> efficiently. Gearing can handle where the speeds should fall. Much like a
> diesel, they're geared for the lower operating rpm.
>
> Ron Porter
>
> -----Original Message-----
> From: shotimes-admin@autox.team.net
> [mailto:shotimes-admin@autox.team.net]On Behalf Of Ron Childs
> Sent: Thursday, January 16, 2003 11:16 AM
> To: shotimes@autox.team.net
> Subject: RE: [Shotimes] Dyno charts
>
>
> Several cars now, and more to come have CVTs, Continuously Variable
> Transmissions. Although their behaviour depends on programming, the ideal
> for performance is to let the engine rev to peak hp and the tranny will
> adjust and accelerate the car. Wide torque band no longer needed.
>
> -Ron Childs  '91
>
>
> >From: "Ron Porter" <ronporter@prodigy.net>
> >
> >I agree with your final conclusion, but I don't agree that the amount of
> >horsepower is "most important"
> >
> >In reality, horsepower doesn't exist. It is a math formula to show how
much
> >work is done over time. Torque is a real force, and the horsepower
> >calculation shows how much work that torque can do.
> >
> >Let's look at Ransom's example: a lawnmower producing 220 HP at 150K rpm,
> >or
> >a SHO motor producing 220 HP at 6K rpm. They technically producing the
same
> >amount of work at their peaks, but engines don't only run at their power
> >peaks.
>
>
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