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hey all,,another classically dumb question,, from yours truly,,
when a car has electric overdrive,,does this mean,,that there is an electric motor driving the car???
thanks
ptpro |
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Hi there
I think it's just an electrical actuator to engage the mechanical overdrive.
Had an Austin-Healey 100/4 in the family a few lifetimes ago and that had a Laycock de Normanville electric overdrive, with a switch on the dash to turn it on, with a
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uumm? thanks for that madjack,,,but it seems strange to put some gismo in a gearbox to change gear?? why not just have another normal gear change??
ptpro |
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These were a bolt-on item that went behind the gearbox, and the tailshaft is shortened & goes into the back of it, as the factory didn't offer the extra gear within the gearbox.
They have been around for years - at least since the 30s with an additiona |
Cheers,
Mick
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So these things were probably not fitted at the factory, more like an after market product? So, I guess they could appear on any vehicle....did they get fitted to Holdens??
Actually there is a much more recent variation on this "electric" overdrive ide
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uuuummmm?? well does that mean someone can add on this overdrive to back of auto?? or is too hard?? cause i wanna have overdrive on 98 transit with 308 auto in it?? also i want to have extra low gear on same vehicle? for other idea of mine?
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Hi fallingbear
Don't know how achievable attaching an overdrive might be but there seems to be quite a lot of info about these units,and they seem to have been used by AMC and Chrysler as well as in Europe, even on Ford Transits.Have a search for Laycock
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I've seen an XJ6 Jaguar with a electronic overdrive. It had a four speed manual, with a slide switch on the top of the gear lever to activate the overdrive. Came out of the factory like that, I believe.
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Hairy-Dude.
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Some MG's had the electric overdrive as well - worked in 3rd & 4th for some odd reason. I don't know how much power they'll hold, as they're built for a pommie 4cyl. In the states theres a company that makes electric overdrives (can't think of the name) f
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Early Toyota Crowns had an electric overdrive as did MK4 Ford Zodiacs. It was optional on some Triumph models too.
The reason that Mitsubishi put an electric overdrive on the early Magnas is because the box was originally an 8 speeder similar to the |
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So the OD units might still be hanging around in the wreckers somewhere. An XJ6 unit would handle a fair bit of power I would have thought.
Another thought on what fallingbear was saying about also wanting a lower ratio..
I've a recollection that some
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well goodness gracious me,,my head is spinning with all the support from y,all,,,
see i am working on this 98 transit campervan,,and i am doin some interesting things to her,,
now her motor is 308,auto, got rid of garbage pommie diesal, but she is too l |
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I think the mob in the US who make these things is Gear Vendors,their products sound like the business but as Beige Hornet says they don't come cheap.
MJ
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thanks mj,,,will look,,,as far as cost goes, van only owes me about 10g,s and will keep it till i cark it anyway,,,so cost is not problem,,
fb
ptpro |
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Gear Vendors - that's it! I've been trying to remember that one for days. I've been a bit interested in this idea for a while too, but I never knew about the magna or jag boxes. Which do ya reckon would be better? My money would be on the jag one - I gue
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All the Magna boxs I know of the overdrive is internal in the box,So trying to use it would be very hard.Actually thinking about it I dont think I have seen a manual magna box with overdrive.(Is that 5th gear that is being talked about ??)It may have been Edited by user Thursday, 8 March 2007 8:00:02 AM(UTC)
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i looked at gear vendors,,very expensive,, now this maybe silly?? but could a 4wd transfer case be adapted?? for high low range? this is the bit that drives the front wheel drive part of a 4wd?? might be silly thought??
I really dont know enough about |
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Can you change the diff ratio |
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I had a 38 Hudson Terraplane with electric gear shift and overdrive. It was a bar sticking out from the steering column like a gear change but it was fixed. It had a little tiny gearlever about 3" long that you selected the gears with. A lot of buses had
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