OVS 14LB TURBO NO RACE GAS NEEDED!!!!!!!!!

[backcountryislife]

Travis, as there are some of us that would rather spend our money on a turbo setup for next years sled than spend it on the forum, it would be really cool if you could start a new thread on this. I'm putting some type of FI on my short sled this summer, this seems like a viable option to me.

One thing I'd like to hear about, how is tuning in comparison to gas? Easier, harder, different in other ways that we're not thinking about?

I'm curious about some type of comparison, pros/cons to what you feel works better with each system.

I've got a cutler RG setup on 1 sled now & finally had a problem, I cut a wire when I put the steering hoop back in. If I can get that kind of reliability out of a propane setup... sold.

 

[ridgeclimber]

lpg conversion

I have a 08 800 Polaris dragon with a BD pg turbo kit. It works good. But at times there is a little tinkering needed, or having to get some race fuel to be safe. This sounds very interesting to me. Just waiting for a kit to come available for my sled. Just for some extra info, check this direct injected lpg system that I found.http://www.icomnorthamerica.com/aftermarket.html. I phoned them, they said there system is a direct replacement for the gas injectors and it will work with the stock vehicle oem ecm. I then asked them if it would work on a two stroke sled. They would not give me any details, but they did say they are working with someone on that. So it will be interesting to see what comes of this new technology.

 

[Pure Logic Tuning]

Icom North America is under contract with OVS and direct injection is being tested as we speak. The problem is that the injection still be dependent on the factory ecu and not as easy to tune but will be available if the project functions properly.

 

[Trashy]

I have a 08 800 Polaris dragon with a BD pg turbo kit. It works good. But at times there is a little tinkering needed, or having to get some race fuel to be safe. This sounds very interesting to me. Just waiting for a kit to come available for my sled. Just for some extra info, check this direct injected lpg system that I found.http://www.icomnorthamerica.com/aftermarket.html. I phoned them, they said there system is a direct replacement for the gas injectors and it will work with the stock vehicle oem ecm. I then asked them if it would work on a two stroke sled. They would not give me any details, but they did say they are working with someone on that. So it will be interesting to see what comes of this new technology.

It will work, but you have to inject the oil into the LP. This requires a high pressure pump. Pre-mixing fixes this issue but poses other problems. That said, liquid injection is the only way to go (versus vapor injection).

 

[Tonysnoo]

It will work, but you have to inject the oil into the LP. This requires a high pressure pump. Pre-mixing fixes this issue but poses other problems. That said, liquid injection is the only way to go (versus vapor injection).

I guess I missed something? Why would you have to inject the oil any where but where it goes in the boots, just like other NA or boosted systems. It just gets pushed into the airstream and flops around the inside of the motor wetting down everything it can.....doesn't it???

 

[Pure Logic Tuning]

There are alot more challenges in injecting liquid propane. Snowmobiles are not cars and it is a real trick to get the high pressure pump to always have a 100% liquid to pull from, cars do not get upside down or straight up and down. This is the problem being worked through with ICOM as we speak. The other problem is sizing of the injectors snowmobile injectors in the Cats and Polaris are extremly large. Auto injectors are not even close in size. The list of challenges goes on and on. This kit will take some major time this summer and fall to see if it can be perfected and be cost efficient.

 

[Trashy]

The budget would definitely be higher, unfortunately.... but the potential of the system would go up hugely as well. I run a highly modified prototype injected (vapor) system on my race car and even with eight injectors we are at the outer limits of what the largest available injectors will flow. Now when you have a 2 (or 3) cylinder engine, you can pretty much count on running multiple injectors per cylinder to get the job done. Liquid injection, however, does not pose these limits and also eliminates some complexity with the loss of the vaporizer(s).
I don't want anyone here to take me the wrong way; I'm not a Yamaha guy in a Cat forum stirring it up- I'm a hard core sledder who happens to be in the propane business and would love nothing more than to see LP sleds out there kicking butt and doing it clean. I would buy a Cat in a second if it can prove to be reliable and (unlike my beloved yammys) lightweight.

There are alot more challenges in injecting liquid propane. Snowmobiles are not cars and it is a real trick to get the high pressure pump to always have a 100% liquid to pull from, cars do not get upside down or straight up and down. This is the problem being worked through with ICOM as we speak. The other problem is sizing of the injectors snowmobile injectors in the Cats and Polaris are extremly large. Auto injectors are not even close in size. The list of challenges goes on and on. This kit will take some major time this summer and fall to see if it can be perfected and be cost efficient.

We covered the injector sizing issue earlier... some of the liquid injectors have huge flow potential.
The upside down issue is a very good point however. And one advantage to a vapor system as it will run just fine inverted.

Any and all of this injection stuff still has a loooong ways to go to find perfection on a sled.
Hopefully your system works out, I would love to have one even if it means switching brands.

 

[Pure Logic Tuning]

Thanks for the support.