Re: Why don't need their clutch to shift?

On Jun 24, 8:14 pm, John McCoy <igop...@xxxxxxxxxxxxx> wrote:
"Kennith" <K.Lech...@xxxxxxxxx> wrote innews:9UDfi.43$oS1.27@xxxxxxxxxxxx:

They showed TS's in car camera and he was just throwing the shifter
around without shifting. Is the clutch electronic in these cars?

No, it's manual. The gears in the transmission are cut differently
from a production car transmission, tho - production gears are cut
helically, which minimizes noise from the transmission but makes it
hard to unload the gears by matching revs. Racing transmission are
straight cut, which are noisy, but if you match revs the gears will
unload (so the engine isn't putting any load on the driven gear,
and the rear wheels aren't causing any load on the input gear) and
then everything will slide freely when you shift.

Most motorcycle transmissions are the same way - I don't use the
clutch to upshift, altho I do to downshift.

John


Its known as the Jericho transmission and has been around for
sometime. It's a shame in a way. Prior to that, it was really
something to watch one of the few decent road racers in the field.
They usually stuck a camera near the pedals so you could see the heel
toe work. Usually it was in say Ricky Rudd or Terry Labonte's car.
The Jericho made shift so much easier it took much of the skill out of
shifting. It also added a great deal of reliabilty. It was common to
have clutch problems prior to that.

.

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