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Home built overdrive trans

PostPosted:Tue Dec 25, 2018 12:11 pm
by jonmental
Long shot here

With the current craze for nostalgia most people think of Chevys and Hemis, but in Blighty it was Jags and other small engines.

Can anyone help with info on home built overdrive transmission.........best type to use.....best clutch to use etc etc.....to be used behind Ford crossflow/pre crossflow.....I know quite a few were built back in the day by various racers, so any info would be appreciated.

Cheers
Johnny Hall

Re: Home built overdrive trans

PostPosted:Tue Dec 25, 2018 10:46 pm
by wayne
Hi Jon, I used to have a box that was made by John Whitmore, it used a jag overdrive unit, so 2 speed, no reverse and a 3mm thick clutch can, had a Ford Thames van clutch modified so it was similar to a Hayes slider clutch, russ carpenter knows loads about these! It came with an old r. e. d I bought called express delivery which Martin babb and Stephen Collins owned at various times. The spirit car runs a modified bw35 so maybe Maurice takoor could help! Cheers wayne

Re: Home built overdrive trans

PostPosted:Sun Dec 30, 2018 5:26 pm
by jonmental
Thanks Wayne

I posted 4 years ago with the same request and you replied then......was kinda hoping someone would put me onto what was in someones shed. What happened to your old car?

Re: Home built overdrive trans

PostPosted:Mon Feb 17, 2020 10:11 pm
by Neilbass
My dad, along with race partner Pete Miller built many 2-speeds for drag bikes, Pete also went on to build a three speed version with great success. The two speed versions used in internals of a D type Laycock overdrive, and three speed used the bigger A type overdrive units. On the 2-speed an over centre device was used to brake the sun gear, but on the early version and a Pete’s 3-speeds, band brakes were used to stop the sun gear. None of them had a neutral (or reverse for obvious reasons)

Re: Home built overdrive trans

PostPosted:Tue Apr 21, 2020 6:39 pm
by jonmental
Thanks for the info.....sorry its taken so long

Re: Home built overdrive trans

PostPosted:Sun May 17, 2020 10:33 am
by wayne
Hi jon, sorry for taking so long!
I sold my rolling chassis to a chap called keith miles, he is currently putting a sbc in it but don't know when he will be ready to run!
Wayne

Re: Home built overdrive trans

PostPosted:Tue Apr 13, 2021 12:55 am
by Archie King
Hey Jon, how did this build go? Have you found the parts that you need?

Re: Home built overdrive trans

PostPosted:Thu Apr 15, 2021 6:21 pm
by jonmental
Hi Archie, have had no luck with this, which is a shame.
I am sure something will turn up eventually. I really would like to build a classic British small engined car, even just for display purposes.....and I think fans would love to see a vintage nitro fueled giant killer.

Keep your minces peeled and your shell likes open

Re: Home built overdrive trans

PostPosted:Fri Apr 16, 2021 3:31 am
by Archie King
I hope you find one in the future, I'm sure it will be a great addition to your vintage collection.
You can visit 4wheelonline in case you need automotive parts and accessories going forward.