[Diy_efi] 4L80E into 6.2 diesel application

[Ray]

Why are you using such a low rear-end ratio?  You're going to end up with
something that'll pull stumps (assuming you can get the traction), but burn
out or blow up on the freeway.

If you want to check your gearing, punch the numbers into this program:
http://home.quixnet.net/~cosmic/GearCalc.htm


Ray Drouillard



----- Original Message -----
From: "Eric Deslauriers" <eric.deslauriers at oracle.com>
To: "List for general do-it-yourself EFI talk" <diy_efi at diy-efi.org>
Sent: Monday, July 14, 2003 10:09 PM
Subject: RE: [Diy_efi] 4L80E into 6.2 diesel application


> The 6.2 revs to the high 3K.  With Banks turbo, it puts out just under 400
> ft/lbs. With a few more mods, it'll be in the 450-480 range.
>
> The tranny gear ratios are the same in GM applications.
>
> With low rear gears (4.56 I believe), 80 is about ready to have a rod come
> out the side of the block.
>
> In my case, all I need to make the engine run is a hot wire to the pump.
> That means if I need anything else for the tranny, I've some work ahead of
> me since I don't have it.
>
> Eric D
>
> > -----Original Message-----
> > From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org]On
> > Behalf Of Perry Harrington
> > Sent: Monday, July 14, 2003 6:31 PM
> > To: List for general do-it-yourself EFI talk
> > Subject: Re: [Diy_efi] 4L80E into 6.2 diesel application
> >
> >
> > Jet makes a "Transconversion kit" for 4L80-E trannies.  It is an
> > external computer
> > that controls the transmission.  From what I know of Fords, the
> > diesel trannies have
> > significantly different gear ratios than gasoline.  The reason
> > being that the diesel's
> > don't rev very high.
> >
> > --Perry
> >
> > On Mon, Jul 14, 2003 at 09:04:47PM -0400, Ray wrote:
> > > If you have the pinout of all the connectors, you can probably
> > put together an analog shift computer that uses a few op-amps and
> > some driver transistors.  You will need to send the engine speed
> > and load into the computer.  If you want to have something a
> > little better, adding inputs for things like engine temperature
> > and road speed will help.
> > >
> > > In the mean time, you can always hook the harness up to a few
> > switches and shift it manually.
> > >
> > >
> > > Ray Drouillard
> > >
> > >   ----- Original Message -----
> > >   From: Eric Deslauriers
> > >   To: diy_efi at diy-efi.org
> > >   Sent: Monday, July 14, 2003 7:54 PM
> > >   Subject: [Diy_efi] 4L80E into 6.2 diesel application
> > >
> > >
> > >   I have an 83 6.2 diesel I want to put a 4L80E behind.
> > >
> > >   Am I stuck buying the piggback computers, or is there
> > something I can DIY myself? :)
> > >
> > >   Also, beyond torque converter and SW, is there anything
> > different between diesel and gas 4L80Es?
> > >
> > >   Thanks!
> > >   Eric D
> >
> >
> > --
> > Perry Harrington Data Acquisition &
> > Instrumentation, Inc
> > perry at dainst dot com
> http://www.dainst.com/
>
> Those who would give up essential liberty to purchase a little temporary
> safety
> deserve neither liberty or safety. Nor, are they likely to end up with
> either.
>                              -- Benjamin Franklin
>
> _______________________________________________
> Diy_efi mailing list
> Diy_efi at diy-efi.org
> http://www.diy-efi.org/mailman/listinfo/diy_efi
>
>
> _______________________________________________
> Diy_efi mailing list
> Diy_efi at diy-efi.org
> http://www.diy-efi.org/mailman/listinfo/diy_efi
>
>



_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi