Thinking out of the box c60 turbo charged?

[BigBill]

I seen a turbo kit on a willys jeep 134f head producing 300hp. Sounds odd that much but it sounds great it has that turbo whistle. I been wondering what if we installed one on a c60 engine in our tractors? I little more power sounds good?

[John *.?-!.* cub owner]

Therr was a post a few days ago about a company that has a prototype one running and is considering manufacturing them, but I suspect the price would be enought ot buy a couple of cubs, or couple of Super As that would have about the same power. I question how much improvement you would get with an engine that is governed at 1800rpm, and how long everything would last if you ran it much faster.oops, I blieve aoround 200 rpm in your case, but still same answer

[Landreo]

There is nothing special about a cub engine. You can add a turbo to a flathead engine so I assume it could be done to a cub. I have a small turbo sitting in my barn for such an application. Worth it or not? That is up to the person doing the work and spending the money.

[Slim140]

Here’s the link

viewtopic.php?f=1&t=98928&hilit=New+turbo+kits

[Mike H]

There is nothing special about a cub engine. You can add a turbo to a flathead engine so I assume it could be done to a cub. I have a small turbo sitting in my barn for such an application. Worth it or not? That is up to the person doing the work and spending the money.

the big queston is ,,what can handle the extra Hp. the turbo will add to the C60
I am having a hard time keeping PTO clutch packs now with the snow blower

Mike

[John *.?-!.* cub owner]

I would worry about the drive line on a numbered series, it has a smaller clutch, and if I remember correctly there is just a Woodruff key that keeps the transmission shaft from spinning in the clutch connector. As to the pto clutches I have never messed with them, but I do know they are pretty touchy from listening to others.

[SONNY]

The pto clutches are a bear!!--- Trust me, I have them, and they are VERY picky!! LOL!!! thanks; sonny

[Landreo]

I wish my numbered series had a keyway on the driveshaft, that would have been a better design than what IHC came up with. I have a 22 hp V twin sitting next to one of my barns waiting to go into a 185. I have no doubts the drivetrain will handle the extra hp.

The pto clutch is actually very simple and reliable. It is still being made by TBWoods as their model c4. Rated at close to twice the torque a cub engine can develop. I would be interested in seeing photos of Mike H's exploded clutch. The clutch capacity is certainly able to handle a snowblower so I expect there were other issues.

[John *.?-!.* cub owner]

Remember, those VTwins developed their HP by turning up in the 3600 range. If you are building a show rig that will be ok, but if you are wanting a working rig you will need a 2 to 1 gear reducer on the input shaft to get much done.

[Mike H]

The pto clutch is actually very simple and reliable. It is still being made by TBWoods as their model c4. Rated at close to twice the torque a cub engine can develop. I would be interested in seeing photos of Mike H's exploded clutch. The clutch capacity is certainly able to handle a snowblower so I expect there were other issues.[/quote]

its on the list for this springs tear down[with pic's]

The pony motor is working out well, I need to slow down the auger or go with a smaller shive on the motor to get the ratio down

Mike

[outdoors4evr]

A 2:1 ratio is very easy to get on a numbered series. It's called a creeper. The road gear would be quite a ride though if you put the creeper in 1:1.

[Landreo]

My original plan was a v-twin coupled to a cub cadet hydro but the gearing on the hydro and the cub final drives makes the top speed around 2.5 mph. I want something slightly faster than the current speed in second gear. I may still do the hydro conversion but would require some some new gearing for the hydro to transmission input shaft. The option I likely will go with is just to use the original drive train with the v-twin. If I slow the engine to 3000 rpm it will still give around 19 hp but with a reasonable speed in second gear.

Years ago I mounted a 3 cyl Kubota diesel in the same tractor but to get enough hp I had to run the engine too fast for my desired ground speed. The V-twin may be the answer.

This also could be an effective way to get a higher mowing speed although the claim of 50 mph is BS : https://www.farmshow.com/a_article.php?aid=26297

[BigBill]

I wish my numbered series had a keyway on the driveshaft, that would have been a better design than what IHC came up with. I have a 22 hp V twin sitting next to one of my barns waiting to go into a 185. I have no doubts the drivetrain will handle the extra hp.

The pto clutch is actually very simple and reliable. It is still being made by TBWoods as their model c4. Rated at close to twice the torque a cub engine can develop. I would be interested in seeing photos of Mike H's exploded clutch. The clutch capacity is certainly able to handle a snowblower so I expect there were other issues.

Take apart the drive shaft and install keys in it. If you look up in the machinists hand book there is a way to figure the shear strength with pins. We figured this out once with hammer lock rigging. We picked up 25 ton parts with four hammer lock loops. I questioned the pin strength. We were well within the limits. A high strength steel pin made from drill rod or case hardened shaft, maybe Thompson shaft it’s hardened on the outside might work.

When my fcub drive shaft cracked at the tranny input bearing it was the second crack. The first crack put a dark grey line around the outside of the drive shaft. The second and final crack was 3/4 of the way to the middle. It’s a flaw in the design of the driveshaft. This tells me the drive shaft is bending in side the tube housing. It needs a sleeve wrapped around it with a pillow block bearing support inside the tube past the throwout bearing.

Now the numbered cubs must be inspected and probably redesigned too.

[Slim140]

Bill, I would think with a crack in the shaft at the front of the tranny you may have a bad tranny bearing. There's 1/2 a million of these out there and you don't hear of many problems with the shaft breaking. 99 out of 100 times the rear tires will spin or the engine will stall before something breaks on these low HP tractors. Flaw design, nah I don't think so.

[John *.?-!.* cub owner]

I have heard of the input shafts on standard cubs breaking before, though it is uncommon. All the ones I have heard of broke just inside the bearing so the shaft stayed in place, but nothing in the tranny moved.