Update for those that has or will try the carbs Mikuni TMR32-D7 with filter adaptors and KN oval podsJetting verified on dyno with 2 types of 4-4 exhausts without any diffusers when measure A/F ratio. No numbers (HM300) and the more open Lotus Root (earlier Sandcast model)
Pilot 30
Fuel screws about 1 1/4 turn out. I guess the range is between 1- 1 1/2
Needles 2:6 too rich earlier and can explain the graphs here and sooty plugs
Main 135
KN oval podsEngine updated too since this post was started
Now JMR billet block 1005cc 10.5:1 JE pistons 71.25mm (machined 12.5:1 to match the 24.4cc chambers for old RC 65mm), head slightly more ported when Kibblewhite 5mm valves went in (34/28)
Cam DP315.
- 4-4 restrict the rpm and upper power to around 8000 rpm
- Lotus root give less power than No numbers
But broader torque curve with better response at WOT when passing cars on a country road. Also better with modified diffusers than No numbers that will be too restricted with any kind of diffusers. Note! Torque is the same on all measurements. Lotus Root w diffusers got 85,34 Nm, all other 87,2-88,7 Nm
I guess that a 4-2-1 will help to extend the power curves and open up for playing around with my other cams. 4-4 might be enough on 1 bike, my ongoing K2 with 736cc and no power mods.
- Hindle 4-2-1
http://www.ripplerockracers.com/product/cb750-hindle-vintage-racing-exhaust-system-fits-1969-78/This is the way since bike will be able to use rear std footpegs, right?
Update: A system is waiting in my garage to be mounted, I ordered both mufflers, long and short just for sure. (Order one later on will be too costly with shipping customs etc)
Kemp at Ripple Rock Racers is really helpful and nice doing business with!Below more race style were a passenger is not welcome except in the winning room afterwards sharing the champagne....
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http://www.schuele-maschinenbau.de/pages/klassik.htm- motogpwerks
Other canididates of max power within reasonable sound levels?