1200 Goldwing garden tractor

[C5Performance]

The other day we were test pulling a Yamaha Seca turbo powered mini tractor. This was one of the guys we compete against.
We are in Wisconsin in case that matters.

It's got two GL1200 engines. The rear engine uses stock ignition and connects to the driveshaft via a chain.
The front engine has an automotive type distributor driven from the timing bolt of the right cylinder head.
It uses a car type coil and the engine is shaft driven to the gear box.

The hardest part for me was too keep working on our tractor and not talk with him about the setup.
Perhaps we'll cross paths another time!

 

[slabghost]

Holy mackeral! That little tractor has more motor than my truck!

 

[C5Performance]

What is the best way to load/share a video?

You must hear this thing run!

 

[dan filipi]

C5Performance » 39 minutes ago[/url]":3i339fns]
What is the best way to load/share a video?

You must hear this thing run!

Load it to YouTube is best.

Very interesting intake and carb setup.
Any more details of his build we can read about?

 

[joedrum]

nice build

 

[Terry]

Now that's pretty awesome. Taking it to the limit, as the old song goes.

 

[C5Performance]

[video]https://www.youtube.com/watch?v=JXcooDTFu_g[/video]

 

[joedrum]

ok that proves it ... you think oldwing motors dont have no bottom end ...LOL... im an expert on low end power being a farmer ....this yard tractor kick ass all the way to the end without spit and sputter and knock routine the bikes can do when under stress .....hooch kinda gives rides like this garden dragon can do...great vid opcorn:

 

[C5Performance]

joedrum » Sun Aug 16, 2015 6:00 pm[/url]":1skt0db0]
ok that proves it ... you think oldwing motors dont have no bottom end ...LOL... im an expert on low end power being a farmer ....this yard tractor kick ass all the way to the end without spit and sputter and knock routine the bikes can do when under stress .....hooch kinda gives rides like this garden dragon can do...great vid opcorn:

There were two concerns I had Joe that perhaps you guys can provide feedback about:

The intake plenum and runners are extremely long. I did like how he made them with a removable top though, but I think shorter intakes would work better?

One engine uses what appears to be stock ignition and coil packs while the front uses a distributor with automotive coil.


I would guess there is room for improvement, and during one run (I only recorded one pass) it sputtered a bit for the first 100 feet.
But when it took off down the dirt EVERYONE stopped walking to see what it was. If I get a chance the next time I see it I'll be sure to ask more questions. The day we pulled there were more important things on our schedule.

 

[joedrum]

the intake manifolds were interesting for sure ....it seems the work was at a high level ....all that power getting right to the track ...so trans is up to it good it seems ... hard to argue with outcome ... its got some pull

 

[backlander]

You sure that's not a 1200 engine on top and a 1100 or 1000 on bottom, different valve covers, could be part of reason for different ignition set up.

 

[dan filipi]

"it sputtered a bit for the first 100 feet"

That could be from drenched plugs with gas and took some time to clear. Looks like big carbs, Holley maybe which pump lots of gas from the accelerator pump (s) but either way, that's a kick ass machine!

 

[joedrum]

backlander » Mon Aug 17, 2015 3:40 pm[/url]":1dy069p1]
You sure that's not a 1200 engine on top and a 1100 or 1000 on bottom, different valve covers, could be part of reason for different ignition set up.

wow thats interesting mike opcorn:

 

[slabghost]

Bottom motor has cam driven magneto so probably no spark advance on it. Top does have the stock 1200 heads. Longer runners from the carbs could be most beneficial in this application as they may at a certain rpm act like a supercharger.

 

[backlander]

Could it be possible that bottom motor is running cam flipped 180 degrees to facilitate tapped end to drive magneto through front cover. This might be a semi-Hooched motor to some degree.

 

[C5Performance]

backlander » Mon Aug 17, 2015 2:40 pm[/url]":4xh4ywca]
You sure that's not a 1200 engine on top and a 1100 or 1000 on bottom, different valve covers, could be part of reason for different ignition set up.

One of the engines had the 1200 badge, but now I noticed the valve covers are not identical from one engine to the other.
I've got to ask this guy more questions.

 

[backlander]

I did a little google research and found out the owner is Jim Hull who also is the VP of the Wisconsin Garden Tractor Pullers, Inc. With phone number of 920-539-0055 and website of www.wgtpinc.org

 

[C5Performance]

backlander » Mon Aug 17, 2015 10:39 pm[/url]":3t0feg8k]
I did a little google research and found out the owner is Jim Hull who also is the VP of the Wisconsin Garden Tractor Pullers, Inc. With phone number of 920-539-0055 and website of https://www.wgtpinc.org

I know he lives near me because we have mutual friends. Since our pulling team competes against it, I was warned not to share ignition information that could help it run better. Gotta love competition, right?

The next time I get a chance to visit a pull I'm going to interview him and share more information. It sure is a ground pounding BEAST of a tractor.

 

[joedrum]

yep it appears these oldwing motors are a lot like the farm tractor i use to operate the mighty whitety ....a beast of torque that would break a load before torque would quit or loss of traction...just a perfect set up ....the tractor broke everything that ever hook up to it ...made a great welder out of me ...talk about weld testing ...

i used that tractor around many other tractors with better numbers as in hp and all ...that meant nothing .....mighty whitety would pull right pass them ....these oldwing motor units have big potentcal ...

 

[ianstaley]

That is so cool!