DFI, Batch Fire, and other myths

[Shannen Durphey]

Greg Hermann wrote:
> 
> >Tom Sharpe wrote:
> >>
> >> Greg Hermann wrote:
> >>
> >> > 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???)
> >>
> >> Switch pitches are good for heavy cars with long gears - help out of the hole
> >> and low rpm cruse. Adds about 1000 rpm - makes a 6 speed but most of the time
> >> it's not really effective with a wide torque curve. Use a 700R4 with the
> >>right
> >> converter, or for BIG motors, the T400 derivative, I forgot the number.
> >> Regarde  Tom
> >That be the 4l80e, very heavy, very hungry for horses, but very
> >tough.  Dual stator torque convertor + tcc, electronically controlled
> >shifts, and did I mention it was heavy?
> >Shannen
> 
> Hi Shannen--
> 
> What are some typical vehicle apps for the 4180e???
> 
> Regards, Greg
pickups and vans, motor homes, diesel trucks, all rated at 3/4 ton and
above, 1991 and newer.  They get much more common after 1994.  Really,
it is a THM400 with overdrive added.  
Shannen