I am looking for some advice on the best racing engine application for a mini bike, I am hoping to be able to improve performance and keep maintenance to a minimum. Any suggestions on one of the B&S racing engines that would be good High performance engine for a general purpose mini bike? Any input would be appreciated. Also do the racing engines bolt right in with any mods?
Best Briggs Racing Engine ?
- Thread starter Jeffs
- Start date
KB2 is dead on with the briggs WF. But the clutch that comes with them is for #219 chain. You might need to buy a new #35 chain clutch gear. Also be aware that this motor is making 13hp with the rev limiter on, and 15hp with the rev limiter off. You will also need to run at least 91 octane pump gas with it because of the 9.7:1 static compression.
Another reminder and this is for your own safety. You can't run 12/60 gearing with this motor. It has to much power and will toss you on the ground. The only way to keep it down is if you weight 350 lbs, or if you changed your gearing to a 4.0 ratio (12/48, or 15/60)
This is a factory modified race motor.
Another reminder and this is for your own safety. You can't run 12/60 gearing with this motor. It has to much power and will toss you on the ground. The only way to keep it down is if you weight 350 lbs, or if you changed your gearing to a 4.0 ratio (12/48, or 15/60)
This is a factory modified race motor.
The only problem with the 5hp flathead briggs is the extra maintenance, and it's harder to start with the timing advanced. The OHV's have a easy start built into the cam.
He could always buy a briggs Animal, at 8hp
Or a real GX200 Honda, at 6.5hp
You can build either one of these motors to make the same, or more power if needed. Things have goten pricey for the newest models of the briggs. The new WF is about $1100, and the Animal is $600. The real 6.5hp hondas are about $400. The world formula seems to cost a lot, but for what your getting it's a deal. (Heavy duty race block, PVL igintion, electric starter, billet rod, racing cam and valve train, racing 26mm carb and intake, racing clutch, racing exhaust, and factory blueprinted)
He could always buy a briggs Animal, at 8hp
Or a real GX200 Honda, at 6.5hp
You can build either one of these motors to make the same, or more power if needed. Things have goten pricey for the newest models of the briggs. The new WF is about $1100, and the Animal is $600. The real 6.5hp hondas are about $400. The world formula seems to cost a lot, but for what your getting it's a deal. (Heavy duty race block, PVL igintion, electric starter, billet rod, racing cam and valve train, racing 26mm carb and intake, racing clutch, racing exhaust, and factory blueprinted)
