Author Topic: Auto Transmission Starting in First Gear  (Read 6187 times)

rwmastel

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Auto Transmission Starting in First Gear
« on: March 14, 2006, 22:55:15 »
quote:
Originally posted by cth350

The way you bypass the "start in 2nd" feature is to manually shift down ...
I'm suprised there's no simple way to bypass this.  I don't know squat about transmissions, but I figure since it starts in "1" when the lever is in "2", then that "gear shift position sensor" must be electrical or mechanical.  Can't you just modify something so the transmission always thinks the sifter position is in "2", but doesn't limit you to just the first two gears?  Thay way you always use all 4 gears in your automatic!  Anyone do this?

Rodd
Powell, Ohio, USA
1966 230SL, Euro, Auto, Leather, both  tops
1994 E420
Rodd

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ja17

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Re: Auto Transmission Starting in First Gear
« Reply #1 on: March 14, 2006, 23:13:08 »
Hello rodd,
I think Tom Sargeant has already performed this modification. He has a switch in the car when he wants to start of in first gear.

Joe Alexander
Blacklick, Ohio
Joe Alexander
Blacklick, Ohio
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Tom

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Re: Auto Transmission Starting in First Gear
« Reply #2 on: March 15, 2006, 07:33:00 »
Joe,

Good memory.  I have a small button on the front of the console tray that activates the kickdown switch when I press the button.  The accelerator has to be slightly engaged for it to activate, but it works great.  Gernold installed this when he installed the 3.27 rear end so that if I needed a lower gear, I would not have to shift the lever.  

Best,

Tom

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« Last Edit: March 15, 2006, 19:25:58 by Tom »
1971 280sl Tunis Beige Metallic

Khurram Darugar

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Re: Auto Transmission Starting in First Gear
« Reply #3 on: March 15, 2006, 08:09:13 »
Wow thats very CooL!!

Kay
Euro 280sl LHD Auto.
« Last Edit: March 15, 2006, 09:18:40 by Khurram Darugar »

Cees Klumper

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Re: Auto Transmission Starting in First Gear
« Reply #4 on: March 15, 2006, 15:51:50 »
For those of us with a more conventional differential (3.69 - 4.08 for example) starting out in first gear is not really that great: it will shift into second almost immediately after the car gets in motion - first is very short. But if like Tom you have a 3.27 or similar, it is probably a very welcome feature. Of course, it should start out in first even with the lever in 2, if you floor it.

Cees ("Case") Klumper in Amsterdam
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TheEngineer

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Re: Auto Transmission Starting in First Gear
« Reply #5 on: March 15, 2006, 16:00:02 »
I installed a 3.27 rear axle and find that starting in 2nd gear is quite satisfactory most of the time. But I'm an old guy and drive easy. Sometimes, on rare occasions, if I really want to have a screaming start, I floor it. Don't do that when the road is wet! And consider that it is dertrimental to your fuel economy.
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