[Shotimes] Dyno charts

[Ron Porter]

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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