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 Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER

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Cr8zyB0b
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PostSubject: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Wed Apr 17, 2013 4:43 pm

I want to make a swamp mower as were I live in the uk every were is wet and the land we own is water logged and I want something to cruise though it.. This Is the start of the build but the seat has been lowered as a mock up..


start of the build.

The stock steering setup.

Perless transmission don't no the exact details its a 3 speed




Any suggestions on this build would be a great help as I am new to the off road lawn tractor builds I will keep you all updated on the progress of a engine and the whole build will be posted to this post.. Thank you.
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Maine Mud Mower
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Sun Apr 21, 2013 12:13 pm

well you got a few things to over come. The first being the unibody frame. You will need to weld in some form of bracing or it will never last. Second those rear rims will have little in the way for options for atv tires you will need to get into 6 or 8 inch rims. Your going to need to mount the rims and mesure what with tire will fit. Third that stock stearing may or may not hold up it was one of the first things to go to hell in my mud mower.
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Thunderdivine
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Sun Apr 21, 2013 1:12 pm

Man that would make a perfect trailer bed pirat

Looks good, try weld or bolt in some angle irons lenght wise.

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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 9:14 am

Thanks for your reply's and suggestions.. I am now thinking of making a rectangle out of angle iron then welding to the chassis of it.. with the rear end I have got some ATV tyres and rims and have some hubs from a small trailer so I can bolt them on with some bushings to meet the size of the the axle..
And for the front end I want to set up a sort of direct steering I don't think I would have to change much..
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 9:41 am

Or weld 90 degree brackets every 6 inches to cut down on weight. If its heavy like a tank, it'll drive like one. What a Face

I use steel for my Enduro mower personally, not iron. Twisted Evil
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 10:00 am

I want this thing to be strong so I can drop it in to a 2FT mud pit and it will still be in one piece afterwards. I could use box steel as I have a few lengths of it but every time I work with box steel it seems to give way and bend.. as for the engine I have choices a 16hp flathead industrial briggs or a 22hp briggs opposed twin.. don't no the best option as obviously I don't want it to weigh a tonne but I want some power so when I step on the gas it moves.. Haha
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 12:56 pm

I'd choose the Opposed Twin just for coolness alone and torque Very Happy

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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 1:04 pm

Thunderdivine wrote:
I'd choose the Opposed Twin just for coolness alone and torque Very Happy
In my opinion i would go with a v-twin.
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 1:10 pm

truckin42 wrote:
Thunderdivine wrote:
I'd choose the Opposed Twin just for coolness alone and torque Very Happy
In my opinion i would go with a v-twin.

Shh, go re-build your carb. bounce

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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 1:11 pm

Thunderdivine wrote:
truckin42 wrote:
Thunderdivine wrote:
I'd choose the Opposed Twin just for coolness alone and torque Very Happy
In my opinion i would go with a v-twin.

Shh, go re-build your carb. bounce
Lol i already did.
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 1:50 pm

truckin42 wrote:
Thunderdivine wrote:
truckin42 wrote:
Thunderdivine wrote:
I'd choose the Opposed Twin just for coolness alone and torque Very Happy
In my opinion i would go with a v-twin.

Shh, go re-build your carb. bounce
Lol i already did.

I know, V-twins are sweet too, but I didn't see him mentioning one. That would kinda leave that out...

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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 1:51 pm

Yeha he said somthing like a 22hp oppozzed.
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 4:01 pm

id go with the opposed to, just cause they're cool. or weld the cranks of a v-twin and a opposed together and make a v-opposed as a horizontal shaft.
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 4:06 pm

crafsmankiller wrote:
id go with the opposed to, just cause they're cool. or weld the cranks of a v-twin and a opposed together and make a v-opposed as a horizontal shaft.
A V-oppozed that be sweet.
Iv never seen that done.
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 4:08 pm

truckin42 wrote:
Yeha he said somthing like a 22hp oppozzed.

An opposed has opposing cylinders aka the boxer engine. A V-twin have the cylinder in a V hence the V-Twin name. So it's not the same. You have a V-twin, mudking an Opposing Twin.

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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 4:27 pm

Thunderdivine wrote:
truckin42 wrote:
Yeha he said somthing like a 22hp oppozzed.

An opposed has opposing cylinders aka the boxer engine. A V-twin have the cylinder in a V hence the V-Twin name. So it's not the same. You have a V-twin, mudking an Opposing Twin.
I think he mean to do a entirely new engine...hence *four* Cylinders
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 4:29 pm

Murray modder wrote:
Thunderdivine wrote:
truckin42 wrote:
Yeha he said somthing like a 22hp oppozzed.

An opposed has opposing cylinders aka the boxer engine. A V-twin have the cylinder in a V hence the V-Twin name. So it's not the same. You have a V-twin, mudking an Opposing Twin.
I think he mean to do a entirely new engine...hence *four* Cylinders

I know, but I quoted truckin.

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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 4:54 pm

Thunderdivine wrote:
Murray modder wrote:
Thunderdivine wrote:
truckin42 wrote:
Yeha he said somthing like a 22hp oppozzed.

An opposed has opposing cylinders aka the boxer engine. A V-twin have the cylinder in a V hence the V-Twin name. So it's not the same. You have a V-twin, mudking an Opposing Twin.
I think he mean to do a entirely new engine...hence *four* Cylinders

I know, but I quoted truckin.
Yeah i thought he mented like half of a oppozed and half of a v-twin.
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 6:40 pm

truckin42 wrote:
Yeha he said somthing like a 22hp oppozzed.
There's a small diff between a v twin and appossed LOL
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 6:43 pm

redlinemotorsportts wrote:
truckin42 wrote:
Yeha he said somthing like a 22hp oppozzed.
There's a small diff between a v twin and appossed LOL

Quite a lot indeed, tho I see many mistake em and mix em up.

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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 6:46 pm

Thunderdivine wrote:
redlinemotorsportts wrote:
truckin42 wrote:
Yeha he said somthing like a 22hp oppozzed.
There's a small diff between a v twin and appossed LOL

Quite a lot indeed, tho I see many mistake em and mix em up.
I want one so I can have dual stacks and act like a motorcycle haha
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 6:49 pm

redlinemotorsportts wrote:
Thunderdivine wrote:
redlinemotorsportts wrote:
truckin42 wrote:
Yeha he said somthing like a 22hp oppozzed.
There's a small diff between a v twin and appossed LOL

Quite a lot indeed, tho I see many mistake em and mix em up.
I want one so I can have dual stacks and act like a motorcycle haha

Dual stacks with a bridge, what I've read about twins it seems they like to share exhaust, like the two | | are joined like |-| they like to "talk" to each other. Lol

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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 7:10 pm

Thunderdivine wrote:
redlinemotorsportts wrote:
Thunderdivine wrote:
redlinemotorsportts wrote:
truckin42 wrote:
Yeha he said somthing like a 22hp oppozzed.
There's a small diff between a v twin and appossed LOL

Quite a lot indeed, tho I see many mistake em and mix em up.
I want one so I can have dual stacks and act like a motorcycle haha

Dual stacks with a bridge, what I've read about twins it seems they like to share exhaust, like the two | | are joined like |-| they like to "talk" to each other. Lol

Yes. A crossover pipe helps keep just a little backpressure in the system. Always need just a little anyway. Want to make it 'cackle' like a Harley? Use glass-pack mufflers for a Volkswagen Beetle. Trust me Smile
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 10:04 pm

prometheusEDI wrote:
Thunderdivine wrote:
redlinemotorsportts wrote:
Thunderdivine wrote:
redlinemotorsportts wrote:
truckin42 wrote:
Yeha he said somthing like a 22hp oppozzed.
There's a small diff between a v twin and appossed LOL

Quite a lot indeed, tho I see many mistake em and mix em up.
I want one so I can have dual stacks and act like a motorcycle haha

Dual stacks with a bridge, what I've read about twins it seems they like to share exhaust, like the two | | are joined like |-| they like to "talk" to each other. Lol

Yes. A crossover pipe helps keep just a little backpressure in the system. Always need just a little anyway. Want to make it 'cackle' like a Harley? Use glass-pack mufflers for a Volkswagen Beetle. Trust me Smile
Like a x-pipe in a car. Sounds better too. To many quotes too lol is there a record/limit?
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PostSubject: Re: Mc CULLOCH SPYDER REAR ENGINE SWAMP/MUD MOWER   Mon Apr 22, 2013 10:30 pm

A crossover pipe helps with bottom end torque.

RUnning without one maximizes top end horsepower.

Most twin and multi cylinder bikes run one, some run a resonance chamber.

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