- Joined
- Apr 22, 2020
- Messages
- 3,054
Madness
This will be my second last hoorah with the P11 motor. LOL
I ordered a Molnar 750 crank and barrels bored for 73mm pistons. Plan is to hot up the P11 motor a little more next year. On the fence about getting the Molnar 750 cases. Andy says that my P11 cases can probably take a good beating on the street and not crack and fall apart with his crank and my other parts in it.
Point of the project is to build a mild compression pump gas motor that I can ride the way I want to ride it and not worry much about winding it up. Kind of whacky considering I could have bought a modern bike that does all that easily for what I have into it.
Will be reusing my Fred Barlow ported P11 head with the JSM springs and valves in it. Also sticking with the JS2 cam and BSA lifters. Will be using 73mm 8.5:1 pistons, a thin base gasket, and a .021 copper head gasket to get up in the 9's range. Head was surfaced long ago, so it should be possible.
Anywho, I will update this thread with pics and babble once in a while. Get me on your ignore list, or stay tuned.
This will be my second last hoorah with the P11 motor. LOL
I ordered a Molnar 750 crank and barrels bored for 73mm pistons. Plan is to hot up the P11 motor a little more next year. On the fence about getting the Molnar 750 cases. Andy says that my P11 cases can probably take a good beating on the street and not crack and fall apart with his crank and my other parts in it.
Point of the project is to build a mild compression pump gas motor that I can ride the way I want to ride it and not worry much about winding it up. Kind of whacky considering I could have bought a modern bike that does all that easily for what I have into it.
Will be reusing my Fred Barlow ported P11 head with the JSM springs and valves in it. Also sticking with the JS2 cam and BSA lifters. Will be using 73mm 8.5:1 pistons, a thin base gasket, and a .021 copper head gasket to get up in the 9's range. Head was surfaced long ago, so it should be possible.
Anywho, I will update this thread with pics and babble once in a while. Get me on your ignore list, or stay tuned.