RPE Racing
CB750 Member
Hi everyone,
Just wanted to share some information about our latest creation. We believe this is the second biggest CB engine made (biggest is also ours with 1340cc (78x70mm strocker). What is special about this one is it uses the stock crank - 63mm stroke.
Fed methanol through 33mm CRs fired by Dyna 2000 ignition this is a further evolution of our 1200cc engines but with 81mm pistons.
The top end is fully ported, big valves, cams, the works. This puts out around 135whp at 8000rpm with a LOT of torque.
This was the first outing of the sidecar and went flawless, spinning the wheels all the time and topping out 5th gear with 2/3 of the main straight still available.
If you have a CB Barrel available have a look to see how hard and labour intensive it is to fit 81mm pistons. All this was done in house.
Enjoy and I would be grateful if someone could make the video available to view directly here:
https://www.youtube.com/watch?v=GrNQJRB4Rsw
Let us know what you think.
Paulo @ RPE Racing
Just wanted to share some information about our latest creation. We believe this is the second biggest CB engine made (biggest is also ours with 1340cc (78x70mm strocker). What is special about this one is it uses the stock crank - 63mm stroke.
Fed methanol through 33mm CRs fired by Dyna 2000 ignition this is a further evolution of our 1200cc engines but with 81mm pistons.
The top end is fully ported, big valves, cams, the works. This puts out around 135whp at 8000rpm with a LOT of torque.
This was the first outing of the sidecar and went flawless, spinning the wheels all the time and topping out 5th gear with 2/3 of the main straight still available.
If you have a CB Barrel available have a look to see how hard and labour intensive it is to fit 81mm pistons. All this was done in house.
Enjoy and I would be grateful if someone could make the video available to view directly here:
https://www.youtube.com/watch?v=GrNQJRB4Rsw
Let us know what you think.
Paulo @ RPE Racing
