26 replies to this topic

[mini-me91]

Out of curiosity how many of you would be interested in fitting a 750 bike engine in your minis? Thinking about making copies of my conversion kit

[Dusky]

Performance figures of it?

[Tamworthbay]

Which engine? FWD/ RWD?

[mini-me91]

Its got more power than 1275 but roughly the same torque just to give you an idea, without putting it on a rolling road I couldn't say exact. It will be front wheel drive and will mount to existing engine mounts, however some additional mounts will need to be added to the subframe to stabilise the engine. I'm currently looking at materials as it is currently over engineered and does not allow the frame to flex. The kit will be a bit like the busa kit from lynx AE when its finished

[mini-me91]

Sorry forgot to say, its designed to take a GSXR 750 engine

[Dusky]

I"d go for a bigger engine if doing the hassle off fitting a bike engine...

[mini-me91]

It will start with 750 then hopefully expand to larger engines, my focus was to keep costs to a minimum while providing decent performance and reliability. It will not be as quick or as powerful as a busa but to be honest quite a few people would like a busa conversion but simply cannot afford it

[Ro8bieg]

Good engine for a mini to be honest, I had one in a bandit and it went like stink and take well to mods

[jt19]

would your bandit be quick if you had 5 fat people on it with you though??

Edited by jt19, 07 June 2014 - 08:48 PM.

[Carlos W]

I was on both a Busa, and GSXR750 this week, and they're very different beasts!

 

The torque from a Busa engine is just amazing, in the bike it'll do between 50 and 180mph in top gear.

 

My concern about the GSXR engine would be, is the engine strong enough to propel the additional weight? but I don't know the weight difference between a mini without an engine, and a gsxr without an engine.

[Ro8bieg]

would your bandit be quick if you had 5 fat people on it with you though??

When you say it like that maybe it is a bit small lol!

[Tamworthbay]

I was on both a Busa, and GSXR750 this week, and they're very different beasts!
 
The torque from a Busa engine is just amazing, in the bike it'll do between 50 and 180mph in top gear.
 
My concern about the GSXR engine would be, is the engine strong enough to propel the additional weight? but I don't know the weight difference between a mini without an engine, and a gsxr without an engine.

Depends which model, the early slabside ones weigh a ton but it won't be one of them as them are expensive and collect able now, the later 750 frames weigh less than an old RD350 frame!

[Carlos W]

I was on both a Busa, and GSXR750 this week, and they're very different beasts!
 
The torque from a Busa engine is just amazing, in the bike it'll do between 50 and 180mph in top gear.
 
My concern about the GSXR engine would be, is the engine strong enough to propel the additional weight? but I don't know the weight difference between a mini without an engine, and a gsxr without an engine.

Depends which model, the early slabside ones weigh a ton but it won't be one of them as them are expensive and collect able now, the later 750 frames weigh less than an old RD350 frame!

There's a lot of other potential engines in that range, but I'm not sure of the physical size differences. My dad picked up a crash damaged GSXR 1000 for 600 quid. Then there's the 1200 bandit and the GSX 1300. The 1300 is bound to be the same engine as the Busa, just in a different state of tune.

[Tamworthbay]

I was on both a Busa, and GSXR750 this week, and they're very different beasts! The torque from a Busa engine is just amazing, in the bike it'll do between 50 and 180mph in top gear. My concern about the GSXR engine would be, is the engine strong enough to propel the additional weight? but I don't know the weight difference between a mini without an engine, and a gsxr without an engine.

Depends which model, the early slabside ones weigh a ton but it won't be one of them as them are expensive and collect able now, the later 750 frames weigh less than an old RD350 frame!

There's a lot of other potential engines in that range, but I'm not sure of the physical size differences. My dad picked up a crash damaged GSXR 1000 for 600 quid. Then there's the 1200 bandit and the GSX 1300. The 1300 is bound to be the same engine as the Busa, just in a different state of tune.

it's based on al older version and being jap a load of bits are different. It's an ok engine but I would look to some of the ZX1200 engines that are cheap at the moment. I also wonder about the VFR engine as it is very torquey (if that's a word) and very compact being a V.

[Carlos W]

 

 

 

I was on both a Busa, and GSXR750 this week, and they're very different beasts! The torque from a Busa engine is just amazing, in the bike it'll do between 50 and 180mph in top gear. My concern about the GSXR engine would be, is the engine strong enough to propel the additional weight? but I don't know the weight difference between a mini without an engine, and a gsxr without an engine.

Depends which model, the early slabside ones weigh a ton but it won't be one of them as them are expensive and collect able now, the later 750 frames weigh less than an old RD350 frame!

There's a lot of other potential engines in that range, but I'm not sure of the physical size differences. My dad picked up a crash damaged GSXR 1000 for 600 quid. Then there's the 1200 bandit and the GSX 1300. The 1300 is bound to be the same engine as the Busa, just in a different state of tune.

it's based on an older version and being jap a load of bits are different. It's an ok engine but I would look to some of the ZX1200 engines that are cheap at the moment. I also wonder about the VFR engine as it is very torquey (if that's a word) and very compact being a V.

 

Torquey is a word in my head!

 

I'm not sure about the torque figures of any of these engines.

 

Space is always going to be an issue under a standard front end, especially when you need to fit a diff, reverse gear, get all the gear linkages right, cooling etc

 

I don't know if the angle of fuel injected units are as crucial as carbs