Dont hate me for asking...

[bobsmith]

Good luck! sounds like a fun idea!

I would love to build a go-kart with a cbr250r engine sometime.... now that thing would move....

[Kickaha]

"Star Cars" (NZ version of Legend race car) are done with shaft drive and bike motor. Not sure about reverse with these although they are technically required to have one. Lotus 7 replicas in England that are being built with Busa motors use a starter motor for reverse.

They run a GSXR1100 motor and the drive shaft is bolted to where the sprocket normally would be

Star car runs the same reverse system as the Busa Lotus

Good luck! sounds like a fun idea!

I would love to build a go-kart with a cbr250r engine sometime.... now that thing would move....

250 motorcross engine in a Kart will piss all over it

[Guitana]

You really are a guitarist ain't you?

People have been bike engines in cars and car engines in bikes (look at Guzzi's Vtwin - that was designed for a FIAT 500 originally) since, well internal combustion engines in vehicles. Load isn't an issue. You just X HP to get Y weight moving at Z velocity.

The biggest problem with putting a bike engine and transmission in a car body is the box has no reverse, and it is of course a sequential box. Setting up a foot clutch is not drama. It's just linkages after all, or even a cable if you want.

Seems like alot of fucken drama to me when you can just buy a proper engine ex japan for fuck all these days!

[Ixion]

Harleys , Gold Wings and some BMWs come with reverse gear. The latter two also have shaft drive.

[marty]

how about buying a flat 6 porsche engine (probably cheaper than a busa engine anyway) and put that in the back of the rolla? that'd be a bit different

[Disco Dan]

Harleys , Gold Wings and some BMWs come with reverse gear. The latter two also have shaft drive.

goldwing motor... inline 4, reverse gear... in a car? ...ummm ya may as well buy a car

[HRT]

Heh, Porsche motor would be a tad heavy and I dont think the 1970s Japanese handling would do it justice.

Am wanting something a bit more revvy, and bike engines have the bonus of a bit of extra power. Cant imagine how much work and how peaky it would be to get 150hp from a 3K

Cheers for the info though, tis very helpful

[cheese]

Hey HRT, I know you from CANZE!

anyway, I've been thinking about similar things adn I saw this thing on topgear about radical racers

http://www.radicalextremesportscars.com/

now this is the fastest car to ever go around there track (at the time) and it has a 1300cc Suzi engine in it!!

I think that they use the cylinder and make there own housing for the crankshaft. I think that they have made a new one that mates two inline 4 engines to make some stooopid V8 that will red line and some even more stoooopid revs!!!

I think that your one major problem would be time between rebuilds. If you had a single 1300 bike engine, the extra pressure would be difficult and I think it would be better with two engines to share the load.

But I'd have to say it would be fucking mean!! and how cool would it sound!!!!!!

[crazybigal]

id say your corolla will be to fat for a bike motor! mabe a mini or a fiat would be better.
bussa motor will be expensive, could use a blackbird or a gsxr1100 motor.
id try a shaft drive motor first maybe a honda ST or a bmw or even a yamaha fj? wouldnt worry about reverse until you know its going to even work! i like the idea of an electric motor for that.
keep an eye out at the damaged auctions for a trashed bike with a good motor or try someone like bikebusters.
hope you get your idea off the ground, would be cool to see it on youtube!!!

[HRT]

Hey Cheese, didn't know you were around this place too. The plan to start with wasn't going to be anything radical like you're talking about. Want to get something going and see what its like and develop from there. Just get it going and then start playing with induction stuff...

Yeah the Corolla may be a little heavy, but thats something I'd like to find out. 800kg with full interior, factory engine etc etc so hopefully a bit lighter than that. Still makes for a heavy go-kart.

Busa engine would be way over the top for what I can afford, I'm not going for ll out power or anything, but the likes of a GSXR1100 would be nice place to start. Couple I've seen use a starter motor onto a ring gear for the reverse via a switch on the dash. Pretty simple idea really for that side of it.

Will keep an eye on auctions, sounds like a strange idea but I'd like to give it a go.

[The Pastor]

Why don't you buy a huge big v 8 and put that into a bike?

[RantyDave]

(look at Guzzi's Vtwin - that was designed for a FIAT 500 originally)

No kidding, I had a Fiat 500. Complete piece of shit. Ludicrously unreliable, gutless beyond belief, rusted as if I had been keeping it on a beach ... below the high tide line.

Our family had a string of the little f*ckers - my Dad was into keeping them going as some sort of masochistic pastime. He always told me the engine was basically two motorbike engines glued together - turns out he was wrong and it's actually only one motorbike engine. Crap one too.

Mind you, it does give rise to the possibility of a Fiat 500 with an R1 engine. Death trap, personified.

Edit: speaking of which - http://www.sylva.co.uk/riot.htm

Dave

[James Deuce]

No kidding, I had a Fiat 500. Complete piece of shit. Ludicrously unreliable, gutless beyond belief, rusted as if I had been keeping it on a beach ... below the high tide line.

Our family had a string of the little f*ckers - my Dad was into keeping them going as some sort of masochistic pastime. He always told me the engine was basically two motorbike engines glued together - turns out he was wrong and it's actually only one motorbike engine. Crap one too.

Mind you, it does give rise to the possibility of a Fiat 500 with an R1 engine. Death trap, personified.

Edit: speaking of which - http://www.sylva.co.uk/riot.htm

Dave

Serves you right for having an outrageous accent.

The Guzzi engine never actually made it into a FIAT. It went in a V7 instead.

[James Deuce]

Seems like alot of fucken drama to me when you can just buy a proper engine ex japan for fuck all these days!

Ah yes, but one isn't supposed to put the boot into someone else's dream without good cause.

This suggestion is only mildly mental, so it deserves some support.

[Deviant Esq]

IMHO, better to biff a RWD Nissan motor at it than a bike motor, if you can shoehorn it in. Gallons more torque. You can get a CA18DET (1.8 DOHC inline 4 turbo motor out of a Silvia) with gearbox reasonably cheap, pretty readily available, and in the 'rolla it would go like buggery. Or if you want something non turbo, an SR20DE (2.0 DOHC inline 4) would be the bizzo. The RB series Skyline motors probably wouldn't go in (Inline 6, too long, too heavy) without silly amounts of work.

Just make sure you upgrade the diff or it'll go bang! Get a decent rear axle and Limited Slip Diff (LSD)... and spend the rest of your days going sideways.