[Diy_efi] 4L80E into 6.2 diesel application
grey thorn
greythorn3 at hotmail.com
Tue Jul 15 05:27:07 GMT 2003
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<P>i would be interested in a manual switch setup for a 4l80e if anyone has one designed yet, somthing to play with anyhow. let me know i would like a pick of the layout emailed if possable</P>
<P> </P>
<P>thanks</P>
<P>ray<BR><BR></P></DIV>
<DIV></DIV>>From: bcroe at juno.com
<DIV></DIV>>Reply-To: List for general do-it-yourself EFI talk <DIY_EFI at DIY-EFI.ORG>
<DIV></DIV>>To: diy_efi at diy-efi.org
<DIV></DIV>>Subject: [Diy_efi] 4L80E into 6.2 diesel application
<DIV></DIV>>Date: Tue, 15 Jul 2003 00:08:03 -0500
<DIV></DIV>>
<DIV></DIV>>Thats the general idea. But a lot more precise info is needed
<DIV></DIV>>on actual numbers, and how the trans is wired. Once all that
<DIV></DIV>>is pinned down, circuits can be designed easily enough.
<DIV></DIV>>
<DIV></DIV>>Bruce Roe
<DIV></DIV>>
<DIV></DIV>>14 Jul 03 "Ray" <RAYLISTS at QUIXNET.NET>writes:
<DIV></DIV>> > Start by using a comparator to compare the engine speed
<DIV></DIV>> > with some reference. When the engine is going too fast,
<DIV></DIV>> > shift up. When it's going too slow, shift down.
<DIV></DIV>> >
<DIV></DIV>> > The comparison speeds will be based on engine load,
<DIV></DIV>> > but there will be a hard-defined maximum speed (a little
<DIV></DIV>> > below redline) and minimum speed (around idle). A
<DIV></DIV>> > greater load (vacuum in a gasoline engine, probably
<DIV></DIV>> > throttle position in a diesel engine) will cause the desired
<DIV></DIV>> > shift speed to go up. Reduced engine temperature can
<DIV></DIV>> > do the same.
<DIV></DIV>> >
<DIV></DIV>> > The "shift up" and "shift down" signals can be fed into
<DIV></DIV>> > some simple (probably TTL) logic and, if necessary,
<DIV></DIV>> > some driver transistors (2n2222 or 2n3055 -- we're
<DIV></DIV>> > talking low budget here).
<DIV></DIV>>
<DIV></DIV>>
<DIV></DIV>> > Ray Drouillard
<DIV></DIV>>
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