Simon_A
Member
- Local time
- 9:41 PM
- Joined
- May 2, 2008
- Messages
- 224
Hey all, with the happy completion of my last motored bike, I have decided to kick off "project Polini"
I have mentioned it a couple of times before, but it has always been on the back burner.
This will be the motoredbike equivalent of a drag bike.
I had a stint a few years ago with pocket bikes (CAGs, etc.). Built a air cooled bike as far as you could go, and then stepped up to a watercooled 911 dreambike. In standard guise it was bloody quick. But me being me I couldnt leave it standard.
So I got from Italy a top end racing package. This was the head, cylinder, piston with rings, gaskets etc. Also got all the suggested upgrades to match, polini race exhaust. 19mm Dell ' Orto Carb (black version, factory set up for racing) , 2 shoe BZM race clutch, Polini carbon fibre reeds, etc..
Its a watercooled setup as I said as an air cooled motor cant put out the power of this thing without cooking itself.
To give you an idea, with the 3 port top end and everything stock these things put out 7.2hp. With the setup I have its rated to 13Hp+. On a pocketbike that means a top speed of in excess of 60mph, and brutal acceleration ( you have to lean all the way over the handlebars to take off unless you want to suddenly be on your back with a bike on top of you). Trust me that hurts, mine flipped me once, rather embarassing really.
So the pocketbikes are long gone, kids, curiosity and those things arent something I wanted to think about, but I kept the polini and its running gear.
This setup with Haggard's excellent rackmount conversion in my mind I had a excellent but truely scary idea.
And we all know what that is, but once its finished am I crazy enough to ride it?
Everything on the setup will be built with thick angle steel. I have a length of 40x40x5mm angleiron. All the bolts for the sprockets will be of M8 high tensile bolts. Motor mount bolts are M10.
Anyway, I have added some piccies so all can see what I have to play with.
Laying everything out, the rear rack will have to be about 18 inches long, so its gonna hang out the back a fair bit, but it should be okay.
I havent a clue as to what speed it is capable of, but its gonna be a lot more than I am comfortable with. But hey, I have the motor, what else would a mad motoredbike mechanic do???????????
I will keep you lot informed of its progress. Its not gonna be a overnight build, but I will add to this thread as I get to stages of the build.
I have mentioned it a couple of times before, but it has always been on the back burner.
This will be the motoredbike equivalent of a drag bike.
I had a stint a few years ago with pocket bikes (CAGs, etc.). Built a air cooled bike as far as you could go, and then stepped up to a watercooled 911 dreambike. In standard guise it was bloody quick. But me being me I couldnt leave it standard.
So I got from Italy a top end racing package. This was the head, cylinder, piston with rings, gaskets etc. Also got all the suggested upgrades to match, polini race exhaust. 19mm Dell ' Orto Carb (black version, factory set up for racing) , 2 shoe BZM race clutch, Polini carbon fibre reeds, etc..
Its a watercooled setup as I said as an air cooled motor cant put out the power of this thing without cooking itself.
To give you an idea, with the 3 port top end and everything stock these things put out 7.2hp. With the setup I have its rated to 13Hp+. On a pocketbike that means a top speed of in excess of 60mph, and brutal acceleration ( you have to lean all the way over the handlebars to take off unless you want to suddenly be on your back with a bike on top of you). Trust me that hurts, mine flipped me once, rather embarassing really.
So the pocketbikes are long gone, kids, curiosity and those things arent something I wanted to think about, but I kept the polini and its running gear.
This setup with Haggard's excellent rackmount conversion in my mind I had a excellent but truely scary idea.
And we all know what that is, but once its finished am I crazy enough to ride it?
Everything on the setup will be built with thick angle steel. I have a length of 40x40x5mm angleiron. All the bolts for the sprockets will be of M8 high tensile bolts. Motor mount bolts are M10.
Anyway, I have added some piccies so all can see what I have to play with.
Laying everything out, the rear rack will have to be about 18 inches long, so its gonna hang out the back a fair bit, but it should be okay.
I havent a clue as to what speed it is capable of, but its gonna be a lot more than I am comfortable with. But hey, I have the motor, what else would a mad motoredbike mechanic do???????????
I will keep you lot informed of its progress. Its not gonna be a overnight build, but I will add to this thread as I get to stages of the build.