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Bike Engine And Gearbox To Wheel Coupling


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#1 WestMidlandsMinis

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Posted 16 November 2015 - 01:31 AM

Sorry if this has already been covered or in the wrong section, we need a bit of guidnace.

 

Whats the best way to couple the gearbox to the rear wheels.  We are doing this on a Hillman Imp and I know this is a Mini forum but thought Zcars would be our best option.

 

If anyone knows, do you have any diagrams?

 

Thanks in advance.

 

Matt

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#2 LukeH

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Posted 16 November 2015 - 10:34 AM

Hi

 

Although I am not building a Z-cars mini I am building a front mounted R1 mini and the principle is the same. Space is a bit of premium in the mini so the engines are mounted sideways as they would be in a bike and linked to the wheels via chain-drive differential. I purchased my chain drive kit from Westgarage. It uses a mini differential, output shafts and output covers with a custom machined oil can and sprocket. You need to fabricate a mount that allows you to tension the chain whilst maintaining the correct position for the drive shafts. (have a look at my project in my signature)

 

I'm sure there will be loads of pictures in the build sections.

 

Some kit cars mount the engine front-to-back and use a gearbox adapter so that the engine drives a shaft connected to a rear wheel drive differential. Check out locostbuilders for more details of that approach.



#3 WestMidlandsMinis

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Posted 16 November 2015 - 03:09 PM

Superb, thanks for that.

ill have a look through your build.

Matt

#4 mini13

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Posted 16 November 2015 - 03:18 PM

I'm sure Ive seen a CBR 900 engine driving through an Imp gearbox before.



#5 cptkirk

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Posted 18 November 2015 - 10:04 AM

Sorry if this has already been covered or in the wrong section, we need a bit of guidnace.

 

Whats the best way to couple the gearbox to the rear wheels.  We are doing this on a Hillman Imp and I know this is a Mini forum but thought Zcars would be our best option.

 

If anyone knows, do you have any diagrams?

 

Thanks in advance.

 

Matt

WMMinis

 

 

Have you considered Quaife?

 

https://shop.quaife....ncludes-reverse

 

Not cheap but it does the job....



#6 Chris allanson

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Posted 18 November 2015 - 11:43 AM

There are several ways to do it
Basically you are going to use the output shaft from the bike gearbox to either turn a chain and sprockets like it does in the bike
That way the engine fits transversely in the car
It's quite a simple way of doing it
The next option is to spin the engine through 90 degrees and put the output shaft to a diff mounted in the car either directly or through a prop shaft
Finally the other option is a QBA drive box from quaife
Quite expensive but has reverse in there and no chains to mess with
We fitted a standard z cars mini kit into an imp a while ago and it slotted pretty much straight in no issues
Had hayabusa power and went very well
If z cars starts up again it's an easy thing for them to sort as it's technology they have been amongst for years

#7 WestMidlandsMinis

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Posted 19 November 2015 - 09:01 AM

Cheers guys for the replies.

 

Just had a quick look at the Quaife system and yes, wow, it i a tab expensive.

 

Think we may kinda have it sorted with the plans....more to follow






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