17-10-2019, 06:31 PM
Hi All
I’m beginning to think of the engine build for the Brookfields special. I’ve started a new thread as it may be of use to others contemplating this kind of engine.
The car will be used for vintage trials but will also need to earn its keep as a tractable road car. Most of all I want reliability.
So far I have collected a 1930 coil crankcase, block and 1929 3 speed gate change gearbox. I have a good flywheel clutch etc although the ring gear will need replaced. I’ve also acquired a 1 1/2” billet crank and a set of Nippy rods which seem in good condition and fit together well. I intend to have these crack tested and balanced. I have a 1 1/4” SU and appropriate manifold and a bunch of bananas exhaust manifold.
So here are some questions
What cam should I use? Could anyone suggesting alternatives to a standard cam please explain why.
Should I have the flywheel lightened?
I’m leaning towards the standard gearbox and back axle ratios but is this sensible?
Finally I intend using a DS4 or DK4 manual advance dizzy. Again is this sensible?
I’ve built two road engines in the past but would welcome any advice on this build.
Cheers
Howard
I’m beginning to think of the engine build for the Brookfields special. I’ve started a new thread as it may be of use to others contemplating this kind of engine.
The car will be used for vintage trials but will also need to earn its keep as a tractable road car. Most of all I want reliability.
So far I have collected a 1930 coil crankcase, block and 1929 3 speed gate change gearbox. I have a good flywheel clutch etc although the ring gear will need replaced. I’ve also acquired a 1 1/2” billet crank and a set of Nippy rods which seem in good condition and fit together well. I intend to have these crack tested and balanced. I have a 1 1/4” SU and appropriate manifold and a bunch of bananas exhaust manifold.
So here are some questions
What cam should I use? Could anyone suggesting alternatives to a standard cam please explain why.
Should I have the flywheel lightened?
I’m leaning towards the standard gearbox and back axle ratios but is this sensible?
Finally I intend using a DS4 or DK4 manual advance dizzy. Again is this sensible?
I’ve built two road engines in the past but would welcome any advice on this build.
Cheers
Howard