Howdy fellow Ausminiérs

Here is my question I have a rod change gearbox in our Nota Fang and I am wondering if it is at all possible to modify it so I can run the gear selection rod out the front of the case instead of out the back ?

If anyone has done this before any advise or pics would be fantastic and a big help.

Over the past 7 years of running this car in different events the gear change has let us down on more than the odd occasion so you can understand why i want to try and fix it.

Thanking you for your thoughts, pics and input.

Cheers Jon

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120bhp with 450kg just fun waiting to happen

We were prob. drunk when we set it up last and thought this will be a good idea

Yes with mods to the case it has been done, but unfortunately you give up reverse gear (as it's in the road of the rod)...
May not be too big a prob on a race car?

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Take out reverse gear and extend the shaft in the box.
Works a treat, and use the front donk for reversing.
Have not missed a gear yet - touch wood

Every time I think about your car Dave, my mind boggles slightly more each time.

So cool!

thanks indigo, that looks like what i need to do, we shall have no reverse as we only run 1 power unit


Off to the shed to tinker after work again

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120bhp with 450kg just fun waiting to happen

We were prob. drunk when we set it up last and thought this will be a good idea

Why not sequential shift it... http://www.youtube.com/watch?v=Xjmf9TMJZG0

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Respect mine and I'll respect yours.

When I was tinkering in the shed, I found the reverse selector and gear controlled the amount of overthrow on both syncro hubs in one direction. Took reverse out and I had more overthrow. I controlled this by putting a “stop” on the rear of the shaft running through the box.

I also removed the pin from the shaft so that I could get it into the box. The selectros hold the pin in place once assembled.

clever man...

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did I tell you that I won a trophy?

well after a few weeks of stuffing around in the shed this is what we came up with. The shift "feels " fantastic



and here it is on the dyno { from early November last year }

skip to about 1:15 for the noise

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120bhp with 450kg just fun waiting to happen

We were prob. drunk when we set it up last and thought this will be a good idea

Hi Justfanginaround,
Did you remove the pin from the selector shaft?
If so, do you resecure it in the shaft, or is it just resting there, held in by the selector sleeve?

the extension is stepped in to the end of the original shaft, the shaft is bored to be a press fit, the pin is a tap fit { medium bfh } and then it has a 1/8 hole through the lot with some tie wire just to make sure it won't fall out

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120bhp with 450kg just fun waiting to happen

We were prob. drunk when we set it up last and thought this will be a good idea

Nice!

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SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

Sounds/looks good.
I like the idea of the bolt on flang rather than the weld job on mine.
I guess you could make the hole for the bolt on flange large enough to accept the pin so that you don't need to remove the pin or use the medium BFH.

We welded a 1/4 alloy plate @ 90 deg to the shift rod onto the front of the gearbox and made a bolt in slug that uses a rod box std rear seal if we undo the 2 bolts @ the front we can slide all of the shift rail out through the nose.

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120bhp with 450kg just fun waiting to happen

We were prob. drunk when we set it up last and thought this will be a good idea

You could run an electric reverse if you get tired of pushing it around :p