Carb vs EFI
Oct 13, 2011 | 04:40 PM
#51
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WOW even Ski-doo's newest 2012 summit 800R mountain sled is still using carbs. http://www.atvreviewnetwork.com/enth...cleCode=231235
I guess carbs still have there place for power and the cold.
Strange, BBR will put carbs on a much more powerful (151hp) snowmobile, with a M.S.R.P. of $10,349.00 that rides in the cold ,but does not on a Renegade 1000 EFI ATV that rides in warmer weather and has half the power and cost the same price. http://www.atvreviewnetwork.com/enth...cleCode=195615
I guess carbs still have there place for power and the cold.
Strange, BBR will put carbs on a much more powerful (151hp) snowmobile, with a M.S.R.P. of $10,349.00 that rides in the cold ,but does not on a Renegade 1000 EFI ATV that rides in warmer weather and has half the power and cost the same price. http://www.atvreviewnetwork.com/enth...cleCode=195615
Oct 13, 2011 | 05:47 PM
#53
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From: rindge, nh
thinking that sleds are not held to the same emmision standards as atv's?
They are also not exposed to the terrain extreme's atv's are.
You don't even need an air filter on a sled- but you do on an atv. Really can't compare the two. If there were higher emission standards on sleds- you'd see less carbed sleds.
That's like comparing boat motors to car motors- 250 - 300hp might get you 60-70 mph on the water- totally different applications.
Have you ever owned an older muscle car? I've had a few with manual chokes- after pumping the pedal 8 times and waiting 10 minutes for the motor to heat up, you could start driving without it backfiring or bogging down and forget about cracking open the secondaries on a cold carbed motor!.... How long does my new jeep GC run before I start driving when it's -3* outside....? less than 30 seconds and it's purring perfect.
you can't say carbs run just as well in the cold as efi's- they just don't, otherwise every auto manufacturer that sells a vehicle in the northern states would use a carb- a perfectly tuned carb can run very efficient- so there's a reason (or many) why carbs are no longer used-
They are also not exposed to the terrain extreme's atv's are.
You don't even need an air filter on a sled- but you do on an atv. Really can't compare the two. If there were higher emission standards on sleds- you'd see less carbed sleds.
That's like comparing boat motors to car motors- 250 - 300hp might get you 60-70 mph on the water- totally different applications.
Have you ever owned an older muscle car? I've had a few with manual chokes- after pumping the pedal 8 times and waiting 10 minutes for the motor to heat up, you could start driving without it backfiring or bogging down and forget about cracking open the secondaries on a cold carbed motor!.... How long does my new jeep GC run before I start driving when it's -3* outside....? less than 30 seconds and it's purring perfect.
you can't say carbs run just as well in the cold as efi's- they just don't, otherwise every auto manufacturer that sells a vehicle in the northern states would use a carb- a perfectly tuned carb can run very efficient- so there's a reason (or many) why carbs are no longer used-
Oct 13, 2011 | 05:47 PM
#54
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From: rindge, nh
Oct 13, 2011 | 06:18 PM
#56
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From: rindge, nh
tlc- still thinking about the sled & carb over efi thing 
I'm also thinking carbs are cheaper- there's no software map to pay a programmer to write, no (or less) wiring involved, less hardware and less emmision regulations to worry about- the designing, programming and hardware on a a new big bore atv is probably worth a couple thousand.
just thinking...
I'm also thinking carbs are cheaper- there's no software map to pay a programmer to write, no (or less) wiring involved, less hardware and less emmision regulations to worry about- the designing, programming and hardware on a a new big bore atv is probably worth a couple thousand.
just thinking...
Oct 13, 2011 | 06:21 PM
#57
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i have a 2007 efi sportsman and my father has a carbed 2011 500. polaris' to me are warm blooded and ive never had trouble starting one, even in the winter. there is not a very noticeable difference in the way they run. i have no problems with carbs, but i dont change elevation drastically either
Oct 13, 2011 | 08:07 PM
#58
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The automotive industry switched to EFI to increase the efficiency of 3-way catalytic converters for emission reasons. The improved drivability and increase in fuel mileage was a bonus.
At -3 degrees F you are a fool to start an engine and put the trans in gear and drive away without allowing some heat to build up in the engine and oil first, regardless of what you are driving/riding.
How many of you ride your ATVs in sub-zero temperatures on a regular basis??
The biggest problem with carburetors is the lack of people who understand them let alone fix one properly.
Not being able to do a trail repair on a EFI ATV I think would be my biggest concern.
At -3 degrees F you are a fool to start an engine and put the trans in gear and drive away without allowing some heat to build up in the engine and oil first, regardless of what you are driving/riding.
How many of you ride your ATVs in sub-zero temperatures on a regular basis??
The biggest problem with carburetors is the lack of people who understand them let alone fix one properly.
Not being able to do a trail repair on a EFI ATV I think would be my biggest concern.
Oct 13, 2011 | 08:39 PM
#60
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Providing the enemies of the United States with the maximum opportunity to give their lives for their country since 1775.
Providing the enemies of the United States with the maximum opportunity to give their lives for their country since 1775.
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From: rindge, nh
The automotive industry switched to EFI to increase the efficiency of 3-way catalytic converters for emission reasons. The improved drivability and increase in fuel mileage was a bonus.
At -3 degrees F you are a fool to start an engine and put the trans in gear and drive away without allowing some heat to build up in the engine and oil first, regardless of what you are driving/riding.
How many of you ride your ATVs in sub-zero temperatures on a regular basis??
The biggest problem with carburetors is the lack of people who understand them let alone fix one properly.
Not being able to do a trail repair on a EFI ATV I think would be my biggest concern.
At -3 degrees F you are a fool to start an engine and put the trans in gear and drive away without allowing some heat to build up in the engine and oil first, regardless of what you are driving/riding.
How many of you ride your ATVs in sub-zero temperatures on a regular basis??
The biggest problem with carburetors is the lack of people who understand them let alone fix one properly.
Not being able to do a trail repair on a EFI ATV I think would be my biggest concern.
I worked for detroit for many years- while there I was able to read about the engineering, testing and talk with some of the R&D engineers designing automobile engines. One of the few things I remember- was how they would run motors in sub zero conditions with all kinds of different motor oils, putting them through a battery of tests, starting and jack starting them from the red line (7k+rpm) with a frozen block- in those sub temps- didn't effect the motors longevity and was even reported that warming up an engine was unnecessary.
Some people think carbs are complicated- they are not even close. They are very simple. Anyone with a good ear, basic hand tools and a little knowledge can tune a carb. Complicated = rebuilding an allison transmission with electronic shifting...
Here in new england- you'll hit the sub zero's through january & february. november, december & march will hover in the single digits.