fl350 with industrial engine

[boostinjdm]

I know a guy with a 29hp kawasaki out of a zero turn mower. I could inquire about it for you if you're interested.

[plkracer]

A motorcycle carb does wonders for an industrial engine. Get one off of a bike with a similar displacement, and the tuning will be close enough to run, usually a little rich. A 400ex carb on my 11hp briggs (it claims 399cc, so that is darned close) made it really wake up. Hooking it up is a little more difficult. I didn't use it long, so I used part of the stock intake and hooked a hose to the carb. Some porting and a better exhaust system would also help.

[LiveWire]

A significant amount of flywheel weight can be removed as well.

[jonzer12]

If you are going to use an industrial engine for a recreational machine you should not consider anything other than a briggs vanguard. For every aftermarket part you will find for a honda/robin/kholer there are 20 for a briggs motor. What you want is the 18 or 23 hp briggs vanguard horizontal shaft. Run it stock and then you can cheaply add a rev kit to get you 6k redline, and a new camshaft. with the 23hp motor (627cc) you will get over 30hp and still have tons of torque.
The only advantage the honda motors have is that bone stock the valves won't float until around 5k rpm where as the briggs die out at around 4200-4400 stock. The GX honda's are great engines but not the best choice for a buggy.
If you look at all the mower racers/ modified golf cart vendors/ etc they are all running briggs.

If you want a turn key engine check out http://www.minibuggy.net/forum/pilot...tpartsplus.com.
If you have tons of cash you can try www.alphacarts.com they sell briggs v-twins up to 60hp but they are expensive.

[plkracer]

Nice thing about my older 11hp is that floating the valves wasn't too harmful being that the valves weren't above the head. I don't know what rpm it got to, but it would just sto[p revving, so I suspected it was the valves. It still had plenty of power before that, it just died off. I never messed with flywheel weight, but I bored out the holes on the coil and advanced it a couple of degrees which helped top end. Without any type of ignition advance, these motors die off rapidly as rpm increases beyond their rated 3600 rpm.

[jonzer12]

The problem with higher rmps and valve float is that you will actually wear the push rods (if not overhead cam) very rapidly as in most cases they are fairly soft metal. Rev kits that allow 6000+ rpms typically don't include much more than new pushrods.