RE: Re: shifting on Auto

From: Bernd D. Ratsch (bernd@texas.net)
Date: Wed Jun 25 2003 - 15:15:51 EDT


Remember, the 1-2 shift (manually) will slow you down unless you shift
before 15mph. When in 1st (L) gear, the reverse band is also applied
and when you shift manually from L to 2, the reverse band releases
rather slowly causing a slight bog on the 1-2 shift.

- Bernd

-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Dave
Downing
Sent: Wednesday, June 25, 2003 11:06 AM
To: dakota-truck-moderator@bent.twistedbits.net
Subject: DML: Re: shifting on Auto

> Someone else just mentioned shifting their auto manually, and when
> they
didn't, the experienced about a .4 loss on their 1/4 mile time. Just
wondering how much of a difference does it really make at the track?
When I run (Automatic, no trans-go, O/D off), truck usually shifts close
to 5000 RPM out of 1st, probably around 4800 out of second, and 3rd is
pretty weak at that point. Wondering if the 1-2-3 shifts manually would
make much of a difference. I've currently run a best of 15.65 in the
1/4, and would be nice to be able to run a low 15. Think I just opened
up a big can of worms here :-)
>
> Ken Allgood

Your 1-2 shift sounds pretty good. If your rev limiters have been moved
up, I'd try the 2-3 manually, maybe 5400, some guys are going higher,
depends on your setup. But with your truck shifting at 4800 I'd think
that there's some time to be had there.

-Dave
'02 FR RC R/T



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