LMM's Rally Mower!

Here is my build for the build-off!
I am making a rally mower!
It will be powered and driven by a 20hp Briggs Oppy and a 700 model peerless gearbox. The tires will (hopefully) be ITP hole-shots front and rear.

It will be based off Stretch and TRB's rally mowers.

Here's what I got so far!
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{EDIT IT DOES NOT HAVE SUSPENSION ANYMORE! SORRY FOR THE INCONVENIENCE}

great! good to see someone else is building one with suspension! good luck!

Should be interesting. Nice mower to start with.

Nice RMWS, Good luck and happy building!   

Sounds like a plan! Good luck to you, sir!

Thanks Doc!

All I need to do for the rear suspension is make a bracket for the shocks and for the front mount. Then it will be on to the driveline!

You dad has a lawn mower shop right? That some sweet equipment. I wander what he thinks about offroading them lol

I wish I had a mower shop lol

Is that a atv axle?

redlinemotorsportts wrote:

You dad has a lawn mower shop right? That some sweet equipment. I wander what he thinks about offroading them lol

LOL yeah after taking the rally for a joy-ride yesterday he wants to make one!

Craftsman1998 wrote:

Is that a atv axle?

The swing-arm?  Yeah it's out of a Japanese 110cc four-wheeler.

Ok it looked like it pretty cool

Would I have to "race prep" my 700 to run no governor with a stock pulley swap?

If I do I will just run a governor because I am trying to keep this a "low-buck" build.

I don't think deleting the governor is going to make any difference on whether the tranny should be race prepped. More important would be things like degree of overspeeding (pulley swap), size of tires, etc.

TheRainbowBoxer wrote:

I don't think deleting the governor is going to make any difference on whether the tranny should be race prepped.  More important would be things like degree of overspeeding (pulley swap), size of tires, etc.

It will have a 3-4'' front pulley and a 7'' rear pulley and the tires will be 18'' tall.

I was just wondering because the motor will be spinning it at higher RPMs.

Yeah, it's not so much speed that breaks the tranny. It's the pressure. Higher speed pulley swaps and larger tires increase leverage on the transaxle. Removing the governor does increase the top speed of the engine, but adds comparatively little stress.

Ok. After looking the throttle set-up on the oppy i can't seem to find a good place to run the cable to by-pass the governor.

TRB could you put up a picture on where you ran your throttle cable?

There might be a shot of it in one of our threads. I'm not planning to be at Stretch's, where the tractors are, anytime soon. I'll see if I can find a pic.

Smokierspy shows how he did his oppy Gover. bypass in this video at about 3 minutes.

https://www.youtube.com/watch?v=LCDjqynYJm8

Thunderdivine wrote:

Smokierspy shows how he did his oppy Gover. bypass in this video at about 3 minutes.

https://www.youtube.com/watch?v=LCDjqynYJm8

Ok, thanks Thunder!

Here's a timeline of it so far!
as I got it
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motor swap, deck removal
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got this from a friend, will later be a gokart for my other friend
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this is what I got, also how I will mount it
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starting the suspension mock-up!
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paint and rolling chassis!
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rear view
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front support (clamped in not permanent)
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PAINT!!
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More pictures to come!!

Man your rockin this thing pretty good! maybe cut out the frame so the axle can tuck in there good. Are you gunna use the original shock?

redlinemotorsportts wrote:

Man your rockin this thing pretty good! maybe cut out the frame so the axle can tuck in there good. Are you gunna use the original shock?

Yes, I am going to cut a hemisphere in the frame so it can have more travel.  No I didn't get the original shock with the swing-arm.

LAWN MOWER MUDDER wrote:

redlinemotorsportts wrote:

Man your rockin this thing pretty good! maybe cut out the frame so the axle can tuck in there good. Are you gunna use the original shock?

Yes, I am going to cut a hemisphere in the frame so it can have more travel.  No I didn't get the original shock with the swing-arm.

Oh i like the tires too, good tread, good for hill climbing and the such, should be good for speed and getting sideways.

I made the front mounts for the swing-arm permanently mounted yesterday.  Also found these in my barn from an old snow-mobile!

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These are for later.