Is it hard to convert a gas sled to a diesel? - Snowmobile Forum: Your #1 Snowmobile Forum

snowtrax00 · 10-10-2009, 10:52 PM

What has to be done to convert it to diesel. I like how they dont rev high at all and they're effortless. How much would it cost to convert a 2stroke to a diesel?

Ultrafrozen · 10-11-2009, 01:33 AM

I can do it for you for about $153,047. Let me know soon because the orders are piling up.

First I shave the heads to bring compression up from about 8:1 to 17:1. Then I build an oil sump to lubricate the crankshaft bearings, install my patented "two stroke diesel injectors", modify the spark ignition system and install the antigelling fuel heaters for those cold mornings. You have a choice of reclutching for the low engine speeds (included), or for an extra $63,000 I can install a two speed transmission. Reverse is an extra $13,000.

JUST KIDDING! I couldn't resist. The modern two stroke engine is not robust enough to handle the high compression ratio. Two cycle diesels are very heavy. I think model airplane engines run on a fuel similar to diesel. maybe you can look at that technology to make it work.

You would have better luck converting a four stoke sled.

flandersander · 10-11-2009, 03:52 AM

If I were you, I would go the other way. Go to a Higher reving fuel like ammonium nitrate or gun powder. Yeah, a 600cc gunpowder engine. You think 100 grains makes a big bang? Try 6000! BOOOOM!

snowtrax00 · 10-11-2009, 08:49 AM

polaris rider · 10-11-2009, 10:21 AM

how bout you buy a 4 stroke then? Dude, u got a 2 stroke.. leave it that way

**RJ Gleason** · 10-11-2009, 11:46 AM

Look up "clean sled challenge", University of Buffalo put a 3cyl turbo diesel in to a Poo frame.

xcelr800 · 10-11-2009, 12:16 PM

Quote:

Originally Posted by RJ Gleason

Look up "clean sled challenge", University of Buffalo put a 3cyl turbo diesel in to a Poo frame.

i know they make an electric sled ,but only goes 20 miles or so my .02

stickshift69 · 10-11-2009, 12:17 PM

Its impossible with the original engine.

SkiDoo86 · 10-11-2009, 12:18 PM

Converting a two stroke to a diesel would be about how GM converted the Chevy 350 to a diesel back in the day. And we all know how that worked out.

**BC_Dan** · 10-11-2009, 03:41 PM

Quote:

Originally Posted by SkiDoo86

Converting a two stroke to a diesel would be about how GM converted the Chevy 350 to a diesel back in the day. And we all know how that worked out.

ROFL, that's funny right there

Converting your sled to diesel is possible, using a different engine, gear ratio, and clutching setup. Converting your gas powered 2-stroke to diesel is not possible, the design just won't allow such a conversion. Like Ultra said, the gas engine just isn't strong enough. Neither was Chevy's 350

SkiDoo86 · 10-11-2009, 04:16 PM

I see where he might of gotten the idea of a two stroke diesel. Back in the day Detroit Diesel made a two stroke diesel. But it is no where near the concept of a snowmobile engine. Produced mad power, but also guzzled fuel and not very clean. Only way to make a Detroit Diesel like that to stop leaking oil, it to drain the oil.

You physically couldnt get enough compression out of the two stroke to ignite the diesel. First thing to go would be the crank... And imagine that its the same thing that went in the Chevy 350's, no wonder they went bankrupt.

phishook · 10-11-2009, 04:50 PM

what about LP?
Still pointless, IMO, but if you have the time...

**BC_Dan** · 10-11-2009, 06:51 PM

Even in the day, the Jimmy diesel was big and heavy, and had a crankcase, even though it was a 2-stroke. It did make a LOT of power compared to the other similarly sized diesels of the time.

First time someone said something about a diesel sled, I thought there was NO way.. the engines are way too heavy and diesel fuel is not really a great performer for cold weather... then they did one...

2005 Polaris Fusion - Diesel Engine - Diesel Power Magazine

Anything is possible, but is it marketable? And would I buy one? Would you?

**kccats** · 10-12-2009, 08:57 AM

The LP would be possible! I've often thought about the Cox engine! I don't think the fuel was a form of diesil, likely more the other way, Naptha!

jKsled · 10-12-2009, 06:54 PM

try electric! Clean sweep for UW-Madison snowmobile team (March 24, 2009) the uw's electric sled is faster than a lot of gas sleds! top speed of 75 but the acceleration is crazy, i've seen it in person. 100hp. won first place, and so did the IC sled they designed too....

upersleder · 10-12-2009, 08:26 PM

if it were possible i wouldnt want to be the one pulling on the rope!