We use the stock Mikuni carb on the 540(this carb must stay on there to be legal)...our engines are Bone Stock, And they will yank you out of the seat,.... ask John Grubdigger Herring. He drove my brothers last Sunday while I chased him on the wife's CPR. We mixed the Sportsmans(SP) and the Mod-X-R's(CP-R) in the same heat, after 15 laps, they only had 1/2 a track on me(770ft track that was smooth as silk) Mardela Springs Kart Track (MD)....by far, Hands down, the best track I have ever raced on in the US.
Philadelphia Eagles Stadium Monster Jam race went well last Saturday.......we did not get as many laps as we would have liked but, the whole event rocked. Literally!....there were some huge boulders on the track, Old Goat Launched one at me in turn two......luckily it missed my fat head. The driver of Grave Digger was Awesome, super nice guy(Was not Dennis Anderson)and we talked for quite a while, I rolled the BP in front of the GD truck and got some pictures.......The meet and greet in the was insane.....we were told 33,000 people attended.
Now we get to another Monster Jam right here in Baltimore In July at the Raven Stadium!!!!!!!...and in September we have the Formula 1 Grand Prix in Baltimore....I am still working on getting mowers in that one.
Flywheel ia the first thing we are working on. It'll be late fall prolly. For now im running mod xr/cp r
Drew, keep me posted on the Billet Flywheel for the FC540. In have interest in the first that rolls out.
Will we be using the stock Coils or the Briggs Raptor Coils? (Or Other?)
The stock rod is quite strong, not sure if a Billet is needed yet, but that huge counterbalance(size of a cinder block) has to go.....
That means Tommy Daniels will be doing some Major balancing and George doing some major porting too. Probably a Custom grind cam from Precision.
Having a chassis that can handle the power is more important than having more motor in the case of mower racing.
There are a few people that run Kawasaki's but they are custom pieces. Check out the build section on strengthening
the chassis, improving brakes and steering before going after the motor performance goodies.
Amen...could not have said it better Birdman.......Mod-X-R(CPR) is all about handling(that comes first)...then the stock engine.
...and here's another tid-bit, a couple guys engines went nuclear over the weekend(BP & SP)......no reason to sit idle, while they are waiting for new engines to come it or rebuild.....drop a stock engine in and race MOD-X-R (CPR).........no reason to sit idle and watch.