ah yes, that`s all nice & i`m sure he is going to love it & everything is quite dandy etc,,, just waaaaay tooooo heavy

sorry but we`re (Tricky & i) will not be building anything near as Titantic as that,,, this will be pure lighweight & Blisteringly quick,,, that toyota & our mini will be chalk & cheese

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

That looks like the answer to all the problems.

Never seen anything like it. Wonder where you procure one of those?

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But he's thriving and striving and hugging the turns.

So would that reverse box work where it could transfer drive one way, then with some movement inside the box would produce drive in the reverse direction?

How would that go with the a chain drive though?

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Simplify and add lightness

Not an option on chain drive.

He has done what I was suggesting way back on page one, but for the ingenious inclusion of a shortened toyota gearbox.

Really is quite simple and cheap to do.

Now, where is that gtir tail shaft and rear end......

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But he's thriving and striving and hugging the turns.

The Aussie racers just have teeth cut into the outside of the LR brake rotor. And a starter meshes with it.

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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.

That's ... ahem ... agricultural

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Simon

The adventures of an owner builder in the Tallarook Ranges

It is not there to be used. It is only there to meet a CAMS rule that defines a car as having a reverse gear.
If it does not have reverse it is not a car and therefore can't race.

I have been looking into this for a while (non mini project) and have got as far as getting the motor, but reverse still worries me.

http://www.edge.au.com/forum1/viewtopic ... dge#p43693

this is about the best electeric option I have seen, but there are companies inthe states (Jeffco) that make a reverse hub, which also seems nice, my motor was adapted to a VW box uing that as a diff and reverse.....

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I can only please one person per day,
Today is not your day,
Tomorrow is not looking good either.

I am a bit confused as to how this operates. The starter motor gear drives the motorcycle output sprocket??

So obviously we should need all the rest of it such as driven gear, diff, drive flanges etc etc

The engineer I am sure would be happy with this. for $2k is this pretty good.. even if you have to make up the rest of the drive train...

I am not sure about the spiel about output sprocket shaft business since all the kits in UK leave this shaft unsupported. I guess it can't hurt

I will email this link to the engineer and see what they say

Also, its very interesting about this Aussie race cars.. lol
[/quote]

Gee,

I wish I had said that........

Its the same setup that Matt and I have come up with. Except ours was inline with the drive sprocket not sitting above it.

That though, is a very professional answer to the 'reverse' problem and well engineered. Kudos to them!

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"Not Speeding Officer..........Qualifying"

These electric options look the business but I can't imagine them withstanding some robust application, say a motorkana event?

I wonder how the hayabusa powered clubmans have sorted the reverse? The ones registered in Australia I mean.

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But he's thriving and striving and hugging the turns.

for road use I think the starter motor would be fine.. I dont care if I have to reverse at 5km/h!

Tricky, with your inline option, are you going with a one way engaging gear of some sort or a cluth or something? how would the gear ratio's work out?

I was going to use a planetary gear system to keep ity all inline with the drive sprocket.

This should give us excellent reduction along with the final drive ratio.

Mechanical diesnegagement via on-way bearing or magnetic clutch.

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"Not Speeding Officer..........Qualifying"

any idea how much torque a magnetic clutch from a A/C pump can hold?

IT may be worth looking at what people building the bugges are using, anything that will hold up to a hayabusa engine and 33 inch tall dirt tyres with snatching loads, will be more than fine with any mini style application.

From this site
http://www.minibuggy.net/forum/drivelin ... ons-2.html

A List;
Spool: Homebuilt, no differential, chain driven, cheapest way to go.
Transworks: Has reverse, inboard brake option, direct drive. $2295
Sand Bullet: Has reverse, inboard brake option, direct drive. $3995
Quaife CD Axle: Chain driven, reverse. $3195
Quaife POWERtec: Has reverse, direct drive (not shown on website). $4795
JEFFco Reverse Diff: Has reverse, chain drive. $3500
JEFFco Reverse Hub: Has reverse, chain drive, no diff. $2500
Roberto Gearbox: Econo unit for under 50HP. $1250
Roberto Gearbox: Direct drive for CVT. Live axle. $2000 - depending on options
Jaxsports Reverse Gearbox: Has reverse, chain drive. Available straight or 90 degrees. $2800

Go to the link for further links.

Somewhere on the site there is a chap using a Honda FWD gearbox cut down with good results, but damend if I can find the page.

_________________
I can only please one person per day,
Today is not your day,
Tomorrow is not looking good either.