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- Newsgroups: rec.autos.tech
- Path: sparky!uunet!cis.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!cbnews!cbnewsl!dpl
- From: dpl@cbnewsl.cb.att.com (douglas.p.linden)
- Subject: Re: GM pro's out there?
- Organization: AT&T Bell Laboratories
- Date: Fri, 21 Aug 1992 19:30:38 GMT
- Message-ID: <1992Aug21.193038.3093@cbnewsl.cb.att.com>
- References: <1992Aug18.134736.25119@wdl.loral.com> <1992Aug20.145156.14154@dg-rtp.dg.com>
- Lines: 28
-
- In article <1992Aug20.145156.14154@dg-rtp.dg.com>, brownr@hydra.rtp.dg.com (Tall Randy Brown) writes:
- > In article <1992Aug18@loral.com> dss@wdl1.wdl.loral.com (Daryl S Spano) writes:
- > >
- > >My speedometer gear to my turbo 350 tranny has 26 teeth. Because I have
- > >smaller tires, at 60 MPH my speedo reads 82. Is there another speedo gear
- > >with a couple more teeth that I could use. The dealer is not very helpful.
- > >
- > >Just in case you are wondering, there is no problem with my speedo-I went
- > >to very low profile tires, hence a change in my rolling circumference.
- >
- > Doesn't take a GM pro. Go to any speedo shop (look in yellow pages) and
- > they will put your car on a roller and calibrate your speed. Then, for
- > a small additional fee, they will pop in the correct speedo gear. Worked
- > for me, I went to a little taller tire, speedo read about 5-6 mph slow,
- > switched the gear, works fine.
- >
- > At a 60 mph correct, 82 mph indicated, you're going to have to go to a speedo
- > gear with a *lot* more teeth. They may not be able to put in a gear that will
- > adjust ~35% by itself, but I'm not sure how much range there is to work with.
- >
- > Randy
-
- I was recently looking at one of the streetrod supplier catalogs which
- had a listing for and adaptor the was simply inserted between the tranny
- and the speedo. the unit could then be adjusted to match ANY drive ratio to
- get an accurate speedo reading. sorry, but i couldn't find info on the unit.
-
- Doug
-