Thoughts: Aftermarket Turbo Kit or New Doo Turbo!?

acesup800

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The world's largest diesel engine is 2-stroke, it has a maximum speed of 120 rpm making 107,000 hp and 5.6 million ft lbs of torque, and injects 5.6 ounces of fuel per stroke.

https://en.wikipedia.org/wiki/Wärtsilä-Sulzer_RTA96-C
Ya I know, but the 99% of the modern diesels that anyone is able to purchase is a 4-stroke. If you want to take all the one off's like loco's and steamships, well....
 

oler1234

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Do you know what frame size your turbo is? Are you running like a 3000 series garrett? Just wondering if there is much to be gained by running something larger than the GT2860RS I have.

normally uses a 2871. He was experimenting with a 3000 series. Mostly likely you are correct. The bigger exhaust wheel makes boost later but it’s more fluid transition and doesn’t give up anything at elevation.
 

kingcat162

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8lbs+ of "boost" over and above the 14.7 in the manifold is what you want - there is no comparison - 3lbs is only for limping it down the trail - speaking from real world experience
 

ABMax24

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normally uses a 2871. He was experimenting with a 3000 series. Mostly likely you are correct. The bigger exhaust wheel makes boost later but it’s more fluid transition and doesn’t give up anything at elevation.

That's what I was wondering, the 2860 has pretty good spoolup, but I'm thinking it comes along with higher drive pressure which would loose power. Might have to throw a drive pressure gauge on it one day.
 

06 Dragon

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Is an interesting read for most parts. What is the verdict now that the 20-21 season is over and we are heading into the 21-22 season. I know that some folks opinions may have changed.
A friend of mine has owned turbo prolaris, Yamaha sidewinder with a tune added and now owns a T 850 Doo, stock other then some clutching and really likes it.
 

scotts

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I think it all depends on personal preference, I'm getting pretty old have have zero interest in any sort of wrenching but still want a good performing sled with warranty. Stock is the only way I would go but I can understand why lots would want the better performance of after market, especially if your a tuner at heart.
 

Caper11

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There are lots of smart builders of turbos sleds, and make them run very well and reliable. There is just something about a factory turbo as well that’s more appealing to myself, that’s why I now own a turbo.
 
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