Switch Pitch TH-400 (was something else)

[Shannen Durphey]

Gwyn Reedy wrote:
> 
> Coupla questions.
> 
> Does any aftermarket vendor provide custom stall ratios on the variable
> pitch converters?
> 
At one time Kenne Bell did.  Looks like rebuilt/strengthened factory
converters, two styles.  1800/2600 rpm, and 1600/2400 rpm stall
speeds.
Kenne Bell, 10743 Bell Court, Rancho Cucamonga, California 91730;
(909) 941-6646.

> What mechanism is used to control the pitch switch? Could that be adapted to
> allow control of the clutch in a locking converter?
> 
Old stuff, used in 65-67 Buick and Olds.  Mechanical switches close
circuit, switches to high stall at idle, and at 70%+ throttle
opening.  Electrically, it's opposite the TCC.  Original switches and
linkage are tough to locate, might as well use a manual switch.

> Gwyn Reedy
> Brandon, Florida
> mailto:mgr at mgrcorp.com
> 
> > -----Original Message-----
> > From: owner-diy_efi at efi332.eng.ohio-state.edu
> > [mailto:owner-diy_efi at efi332.eng.ohio-state.edu]On Behalf Of Greg
> > Hermann
> > Sent: Sunday, January 24, 1999 10:50 PM
> > To: diy_efi at efi332.eng.ohio-state.edu
> > Subject: Re: DFI, Batch Fire, and other myths
> >
> >
> >
> > >
> > >Was just thinking yesterday that the switch pitch converter should be
> > >connected to tcc control , and detent solenoid should remain manual
> > >control.  BTW, 350 Buick HEI works, but must use drive gear from 455
> > >points dizzy.
> >
> > Ahh--dangerous thoughts, and hardware that gets forgotten--Anybody know of
> > any experience racing with switch pitch TH-400's????  Or whether such an
> > idea ever got tried with turbo motors??? :-) (Like switching the pitch to
> > let it rev up into the boost QUICKLY???)
> >
> > Regards, Greg
> > >
> > >Shannen
> >
> >