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08-31-2019, 07:54 AM | #21 |
Senior Member
Join Date: May 2017
Posts: 566
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Re: Mitchell Overdrive
Anyone have a tach along with their 4.11 and Mitchell? I was in a friend's '36 with a 411 and his Columbia, it still sounded like it needed another gear at 60 mph and was running around 3000 rpm. I have a 3.54 in my '36 and even with that run around 2800 rpm at 60 and it sounds like it needs another gear. A Columbia would be nice but everyone tells me it will lug the engine.
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08-31-2019, 01:21 PM | #22 |
Junior Member
Join Date: Feb 2019
Location: Little Silver, New Jersey
Posts: 28
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Re: Mitchell Overdrive
Thank You Kevin I'll keep that in mind.
A columbia my first choice, is hard to find and then it has to what they call "bullet proofed" If my floors weren't original and replaced at one time,then I would't mined cutting. I drove a 51 with O/D in high school so I know what Sam means,and it was 12 yrs old. Maybe I'll just stay the coarse,I'm 74 and we senior citizens are always accused of driving to slow anyway. |
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08-31-2019, 03:17 PM | #23 |
Senior Member
Join Date: Sep 2014
Location: Wiscasset, Maine
Posts: 1,981
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Re: Mitchell Overdrive
Hi Jim,
I'm with you on this but I do know that Columbia 2-Speeds get pricey. T5's, Mitchell's, etc. kind of go away from keeping things mostly stock Unless mods have already been done to the car. |
08-31-2019, 04:12 PM | #24 |
Senior Member
Join Date: Jan 2018
Posts: 413
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Re: Mitchell Overdrive
I have a Columbia in my 3-W coupe and a Mitchell in my 1/2 ton P/U.
I actually like the Mitchell better. Both are great but I prefer the Mitchell. They both do the same thing. |
09-01-2019, 12:56 PM | #25 |
Senior Member
Join Date: Jul 2014
Location: Iowa
Posts: 1,634
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Re: Mitchell Overdrive
Using a cable to shift an overdrive is fairly simple. The only adaptation is making a clamp for the cable sheath at the overdrive. I push the knob to shift into OD, and pull it to go back. My OD is mounted directly to the rear axle, and since it moves with the springs, a cable avoids moving a lever mounted to the body
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09-01-2019, 01:36 PM | #26 |
Senior Member
Join Date: Jun 2014
Location: Williamsburg, VA
Posts: 1,627
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Re: Mitchell Overdrive
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09-15-2019, 02:00 AM | #27 |
Junior Member
Join Date: Sep 2019
Location: Hamburg, Germany
Posts: 13
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Re: Mitchell Overdrive
Hello from Germany,
this is my first post here… I have a 36 Cabriolet with 4.11 rear, 39 gear box and a french flathead. Without the Mitchell I was not able to drive more than 50 miles an hour. Now 65 miles are fine, although I do not have a tach connected. I bought it from Macs, and they said that we did not have to cut the floor. But it had to. By the way, I did not do it on my own, it was a shop here in Germany. Greeting Conrad |
09-15-2019, 04:36 AM | #28 |
Senior Member
Join Date: Dec 2013
Location: Minnesota, Florida Keys
Posts: 10,312
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Re: Mitchell Overdrive
That is a professional looking installation. I'm kind of surprised about the 50 mph maximum with the 4.11's; they are low, but I had a '36 3-window with a 276" Merc, a '39 box, and 4.11's, and it would do a lot more than that.
Glad you like the Mitchell, though. Welcome to the "Barn". |
09-15-2019, 06:45 AM | #29 |
Junior Member
Join Date: Sep 2019
Location: Hamburg, Germany
Posts: 13
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Re: Mitchell Overdrive
Hey Tubman,
the engine could go more, but i was too afraid to try ;-) |
09-15-2019, 07:45 AM | #30 |
Senior Member
Join Date: May 2010
Posts: 642
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Re: Mitchell Overdrive
I was going to go with a Coumbia and have the parts but at this point I do not think I will get to it. Age & health changes things ! kx
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09-15-2019, 11:30 AM | #31 |
Senior Member
Join Date: Dec 2013
Location: Minnesota, Florida Keys
Posts: 10,312
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Re: Mitchell Overdrive
Hey Conrad, If the reason you do not have a tachometer connected is because your car is still 6 volt positive ground, I make a solution : https://www.ebay.com/itm/6-volt-to-1...r/233307790645.
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09-15-2019, 11:39 AM | #32 |
Senior Member
Join Date: May 2010
Location: pittsfield, MA
Posts: 2,086
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Re: Mitchell Overdrive
Westach makes a 6 volt tach. Very reasonable and a cinch to hook up.
John |
09-15-2019, 02:18 PM | #33 |
Senior Member
Join Date: May 2010
Location: san antonio, texas
Posts: 461
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Re: Mitchell Overdrive
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09-15-2019, 05:00 PM | #34 |
Senior Member
Join Date: Dec 2013
Location: Minnesota, Florida Keys
Posts: 10,312
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Re: Mitchell Overdrive
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09-16-2019, 12:52 AM | #35 |
Junior Member
Join Date: Sep 2019
Location: Hamburg, Germany
Posts: 13
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Re: Mitchell Overdrive
Thank you guys, I already converted to 12Volt.
I think I will buy a cheap tach just to check the rpm and then disconnect it. |
09-16-2019, 01:35 AM | #36 |
Senior Member
Join Date: May 2010
Location: Qld, Australia
Posts: 4,215
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Re: Mitchell Overdrive
Our 33, when it had the 4.11 gears and the stock 33 babbit engine would run up to 75 mph as smooth as silk
Lawrie |
09-16-2019, 06:26 AM | #37 |
Member
Join Date: May 2010
Location: allison park pa
Posts: 89
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Re: Mitchell Overdrive
I have 411 rear in my 40 coupe with a Columbia 2 speed, in direct drive the tach is reading 2950 rpm at 60 mph. In overdrive it reads 2000 rpm if that helps anyone.
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09-16-2019, 07:55 PM | #38 |
Senior Member
Join Date: Feb 2013
Location: Pittsford NY. USA
Posts: 1,096
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Re: Mitchell Overdrive
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09-18-2019, 04:21 PM | #39 |
Senior Member
Join Date: May 2010
Posts: 642
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Re: Mitchell Overdrive
Someone from Middle of the country sent me an email and I am not able to reply ! Computer problem or ME Sent him a reply and told him I am from ma and National V 8 Club member and in the roster .. He can try again if he wants. Not going to Hershey for the first time in Many many years. but maybe someome could arrange transportation if it is the problem. kerk i
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09-18-2019, 11:39 PM | #40 |
Member
Join Date: May 2010
Location: allison park pa
Posts: 89
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Re: Mitchell Overdrive
Ford Freak, I'm running 235/75/15 American Classic 28.80 inches.
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