I am thinking about changes to my track only coupe and that includes installing a motorbikre engine in the back of it.
I think I have read on here somewhere that "motorbike engines do not suit these cars".

Any comments please?


David

Hi David

Motorbike engines and coupes don't really go hand in hand but can be done. There are two ways the cheap diy way or expensive kit and gearbox way. I have have tried the first way but found that although it would work, the lifetime of such a setup was questionable. I am opting for the more expensive but proven kit from promotive. http://www.pro-motive.co.uk/
There is another way that would require a custom subframe. A Quaife gearbox that replaces the motorbike gearbox,
http://www.quaife.co.uk/catalogue/products/qba11r-0 Also expensive. Hope this gives you a few ideas and would love to hear any of your own.

Cheers
Dermot

Suggest that you have a close look at the setup on Sylva R1ot as it's compact cheap and robust. It might even fit quite well in a Coupe as the dimensions of a R1ot are similar.

I have looked into these before. They run the same setup as the zcars mini. And believe it or not there is more room between the rear of the seats and the centre of the hubs in the R1OT than the coupe. If you look at a side view of each you can see the difference. There is very little room in the coupe due to the mini engines gearbox being under the engine.

How about (mad idea as usual from me )......

Two bike engines inline in the rear, with the outputs of the gearbox facing fowards, with a chain from each engine down to a reverse box (like the old westfield one) with chain pick ups for both engines then on the output of the reverse box connected to a sierra diff with .

anyone?

how about this.

Ahh ron patrick what a hero!


http://www.ronpatrickstuff.com/

The man's a nutjob. Must have balls of steel too.

No I'm serious .

Did anyone see the twin engine ultima?

Any bike engines with a shaft drive?

All joking aside, the promotive kit is the way to go. It uses the mini subframe and fits in a round nose mini so will fit in the coupe(with a little tweek). It also uses mini diff so no need to modify driveshafts.

Must have been a hell of a curry

How heavy is the coupe? I wouldn't really install a bike engine in anything over 600kg. Unless maybe a gsxr13 or zx14. Just bought an r1 fisher fury which is 460kg and totally mental.

Been there done that






Ok, Ok, It was an airfilter fire

Neil

Hi,

Been away for a couple of days.

I e mailed Promotive two or three days ago and I do intend to go to see them, have yet to get a reply. I am also going to see Z Cars on Monday 25th. Their stuff looks very good and they have worked on GTMs in the past. I have also asked them to think about making a frame for an 1800 Honda engine.

David