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Thinking of buying a new sled and was wondering if there was a lot of difference (. esp. in fuel mileage) from a sdi to a regular hi-output carb engine?
 

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600 SDI will average around 17-18 mpg after 1000 miles or so.
That's my brothers 2004.
A friend rode one weekend with us with his 2003 600 HO and he got about what my sled gets, 12 mpg.
 

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high-output is just that, a high-output engine....wasn't made for fuel mileage

whereas an SDI engine, the only reason it has SDI is for better fuel mileage...
 

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The SDI is also built to be less polluting than the HO, so there are probably some restrictions the SDI has that the other doesn't.
 

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smallengineguy said:
The SDI is also built to be less polluting than the HO, so there are probably some restrictions the SDI has that the other doesn't.
Don't know what you mean by restrictions?
Starts like efi, good power, real strong motor.
Only restiction I can see is it requires premium fuel.
 

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I guess I shouldn't have said restrictions. With the SDI, they're trying to get a cleaner burn by using an injection system instead of a carb system. I guess I meant less tuneable than a carb, etc. I assume there wil be a slew of aftermarket stuff available for it though.
 
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