picking an engine help

[ben h]

well i need to pick a different engine for my project
i have a 1965 john deere 110 i am making it 4wd ( ill post pics in another build thread, but the problem is these were designed for a vertical cylinder engine not a slant it just takes up a ton of room is there a decent vertical cylinder engine to build to make say 15hp
if not i may just try and use a longer belt with 40 series clutch next winter but i want to get this moving for now ( i really want a FNR box but its not happening right now)

 

[mckutzy]

The motor bicycling crowd run clones at all different angles, they adjust the amount oil they put in so the crank gets the right amount, and make the carb angle level...
The cylinder is almost vertical
Might be an idea..

 

[itsid]

there's been a 13 horse Briggs flathead (300-320000),
which I'm sure has the potential to push two more horses.
Maybe you can even tickle four horses out of it's 11hp brother *shrugs* (uhm 280000?)
and you can still find a decent amount of modding stuff for old flatheads

There's a Honda G400 but IIRC it's rated for only 10 horses nowadays...
but for all I know there's little to know 'performance parts' available;
so I'd go with a Briggs instead.

And lastly there's the Tecumseh L-heads HM100 has 11 horses IIRC
IDK if there's an even bigger one or if there are any performance parts to get to 15... *shrugs*

In the end I bet I forgot to mention quite a vast amount of other engines alike
and most certainly just don't know any available model that is a viable option.

'sid

 

[ben h]

there's been a 13 horse Briggs flathead (300-320000),
which I'm sure has the potential to push two more horses.
Maybe you can even tickle four horses out of it's 11hp brother *shrugs* (uhm 280000?)
and you can still find a decent amount of modding stuff for old flatheads

There's a Honda G400 but IIRC it's rated for only 10 horses nowadays...
but for all I know there's little to know 'performance parts' available;
so I'd go with a Briggs instead.

And lastly there's the Tecumseh L-heads HM100 has 11 horses IIRC
IDK if there's an even bigger one or if there are any performance parts to get to 15... *shrugs*

In the end I bet I forgot to mention quite a vast amount of other engines alike
and most certainly just don't know any available model that is a viable option.

'sid

Yea I figured there is always performance parts to get it to that kinda power i just couldnt find much for the original k181 that came on this

 

[itsid]

well the 'usual' stuff applies to Kohlers as well..
least restrictive intake & exhaust with proper fuel delivery and a removed governor

I doubt there are performance parts for Kohler flatheads tbh.

But with homemade tinkering and some careful adaptation
of known techniques from tecumseh or briggs flatheads,
(say burn chamber improvement, thinner head gaskets, bigger valves...)
I bet you can make solid 12-13 horses from it

IDK, maybe you're lucky and some important parts for other models even fit
(like finding a matching con rod)
that'll be a ton of research though (comparing all dimensions to every performance part)
and thus you can increase rpm and even make it to the 15horses you are aiming for.

Frankly.. I'd go with the least amount of mods tbh..
chances are it'll pay as a longer lasting result in the end.
And since you need a metric ton of torque rather than actual horsepower for top speed I guess;
the best way of more torque is always more combustion volume...
thus a bigger engine gives you a benefit you can barely compensate with modifications.

'sid

 

[Flyinhillbilly]

The motor bicycling crowd run clones at all different angles, they adjust the amount oil they put in so the crank gets the right amount, and make the carb angle level...
The cylinder is almost vertical
Might be an idea..

This is exactly what I was going to suggest. You can mount the slant motor vertically as long as the rod hits the oil.

 

[mckutzy]

Im not sure how they keep the head oiled....
I think they modify or add a slinger...

 

[ben h]

well the 'usual' stuff applies to Kohlers as well..
least restrictive intake & exhaust with proper fuel delivery and a removed governor

I doubt there are performance parts for Kohler flatheads tbh.

But with homemade tinkering and some careful adaptation
of known techniques from tecumseh or briggs flatheads,
(say burn chamber improvement, thinner head gaskets, bigger valves...)
I bet you can make solid 12-13 horses from it

IDK, maybe you're lucky and some important parts for other models even fit
(like finding a matching con rod)
that'll be a ton of research though (comparing all dimensions to every performance part)
and thus you can increase rpm and even make it to the 15horses you are aiming for.

Frankly.. I'd go with the least amount of mods tbh..
chances are it'll pay as a longer lasting result in the end.
And since you need a metric ton of torque rather than actual horsepower for top speed I guess;
the best way of more torque is always more combustion volume...
thus a bigger engine gives you a benefit you can barely compensate with modifications.

'sid

Yea I tried to use a predator 420 at first was just no possible way to fit it

I may think about slanting it in the future then to gain some room