RE: speedos & L vs S gearing

["Denis, Jean" <Jean_Denis@domain.elided>]

re: Brian's comments:

"not entirely true - the late gtv6 and milano sending units are the same,
but
the early gtv6 and late gtv6 senders are most definitely different.  one is
gear driven and one is sealed."

>i have to agree with Brian, but only in part.
i should have qualified my comments to exclude the gear driven, early model,
speed sensors with which I have no experience (but then i couldn't because i
didn't know!)

"the sending units are also marked with this number, and it differs between
the early and late gtv6's (and presumably the milano as well)."

>However, the late model sensors are magnetic "Hall effect" pulse
generators, mine does not have any numbering and yeah, the gear driven units
would have to have different matching amplifiers.

"the pulse rate indicator on the new speedo matched what was on the sender.
i would guess that the difference in final drive between the 3.41 gtv6's and
the 4.10 gtv6's (and between the 3.55 milano's and the 4.10 milano's and
late 4.10 gtv6's) is accounted for somewhere prior to the sending unit."

>Nope. Geared and Magnetic sensors systems ARE different everywhere. BUT,
within different Magnetic systems the difference is in the speedo, period -
I'm not speculating here.

"now, the million dollar question - i'm almost ready to install my gear
lightened platinum transaxle.  i believe i have two options - (1), wire the
milano sender into the gtv6 wiring harness and use the 140 mph gtv6 speedo
that didn't work before, or (2) open the tranny and rework the internals to
allow use of the original gtv6 sender (if that's even possible)."

Never seen the inside of an early X-axle, the later (magnetic pulse) units
have a toothed sintered metal bit pressed onto the end of the main shaft
that could presumably be removed and replaced with whatever. Otherwise, to
figure out what parts to use for a non-factory combination might be
anybody's guess.

BTW, speaking of gear lightening, has anybody noticed that the clutch disc
is a huge part of the inertial system? A low-inertia clutch disc would help
in the same way that the gear lightening does (maybe more so). I did not
have my gears lightened.

J. Denis

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