APEX GAS MILAGE!!

[Mighty]

To answer the question I got 15 mpg's in the first 250 miles of pretty hard riding.
The octane question is simple, the compression isn't high enough to warrant higher octane. Higher octane does not produce more power (actually less) it's simply more stable under compression and keeps the fuel from igniting before the spark plug fires.

 

[y_guy]

Been using regular 87 octane in mine. Runs perfect. I don't see a need to dump high octane in this sled. Dealer told me to just use 87 as well.

 

[accobra66]

I have been running both 93 and 87. Just trying to find the middle point. Milage has been anywhere from 12 to 16 mpg. on my Attack.

 

[X-APE]

I get about $2 less per fill up than the 2 -strokes. or, about 2/3 of one gallon less per tank. Not as much as I expected from all the talk.

 

[B2SO]

octane

higher the octane the cooler it burns , thats why the modded sleds need the high octane , less chance of detonation , with the apex the motor was set up to run the low octane and get a hotter burn , i was forced to put in 93 octane in the u.p. (one pump ) and i could tell it was not as strong running on that tank of gas ....just my .02

 

[yamaouch08]

I got around 16-17 miles a gallon first 500 miles now it gets 20-22 miles a gallon. Apex Gt has 1,100 miles on it know. It gets better with mileage

 

[dirkdiggler]

High performance means all the part internally are Heavy duty.. (forged rods/pistons etc)


Im not saying the usage of fuel is the reason for a loss of gas milage on that the engine makes the most HP on 87 octain because the compression isnt high enough for 92 or 93 octain..

Higher octain fuel burns slower so that it doesnt cause the engine to ping or predetonate!

Lower octain fuel burns faster (which is needed on a lower comrpession engine)

The faster you can burn fuel while not pinging or causing pre detonaion will give the most horsepower!

The only reason you would run Higher Octane fuel is if you had Higher Compression or you advanced your Timing.

If the 07 sled require higher octane they must have more compression or more timing.

The reason you run more octane with a high compression motor is it makes the fuel less volatile,It burns slower. You also need the higher compression to ignite the fuel ends to start he burn. If you don't have the compression to ignite the fuel you will actually lose power.

Cylinder pressure is Horse Power. The more Cylinder pressure you have the more power you will make. Increasing compression can do that for you as well forced air induction "Turbo or supercharger". The more Fuel, Air and compression you have the HP you will make.

 

[nigwolff]

fuel economy

I think they will all get better fuel economy if there were actually snow to ride on!

 

[welterracer]

High performance means all the part internally are Heavy duty.. (forged rods/pistons etc)


Im not saying the usage of fuel is the reason for a loss of gas milage on that the engine makes the most HP on 87 octain because the compression isnt high enough for 92 or 93 octain..

Higher octain fuel burns slower so that it doesnt cause the engine to ping or predetonate!

Lower octain fuel burns faster (which is needed on a lower comrpession engine)

The faster you can burn fuel while not pinging or causing pre detonaion will give the most horsepower!

The only reason you would run Higher Octane fuel is if you had Higher Compression or you advanced your Timing.

If the 07 sled require higher octane they must have more compression or more timing.

The reason you run more octane with a high compression motor is it makes the fuel less volatile,It burns slower. You also need the higher compression to ignite the fuel ends to start he burn. If you don't have the compression to ignite the fuel you will actually lose power.

Cylinder pressure is Horse Power. The more Cylinder pressure you have the more power you will make. Increasing compression can do that for you as well forced air induction "Turbo or supercharger". The more Fuel, Air and compression you have the HP you will make.

Thanks for repeating what i already said..

My point was that the TEST sleds are either modded or higher in horse power!! (its called a hint)

 

[APEX 21]

I got around 16-17 miles a gallon first 500 miles now it gets 20-22 miles a gallon. Apex Gt has 1,100 miles on it know. It gets better with mileage

I sure hope its like wine GETTING BETTER WITH AGE. we'll find out I'm going on a 2,500 mile run in Canada next week. I have 530 miles and get about 15.7 MPG. It has been improving since new

 

[welterracer]

Only way your getting 20mpg.. is if you are going a constant 40mph and are on hard groomed trails with no turns..

Ive had 3 4strokes and never got better than 18 (and that was only once)

 

[APEX 21]

I know the Vector GT is getting 20 with 500 miles. 1 less cylinder to feed, alittle too much of a pooch for me

 

[welterracer]

I know the Vector GT is getting 20 with 500 miles. 1 less cylinder to feed, alittle too much of a pooch for me

Most vectors get 15-16mpg.. with some in the 18-20mpg range...

 

[03viperguy]

To answer the question I got 15 mpg's in the first 250 miles of pretty hard riding.
The octane question is simple, the compression isn't high enough to warrant higher octane. Higher octane does not produce more power (actually less) it's simply more stable under compression and keeps the fuel from igniting before the spark plug fires.

spoken like a man that is in the know. this is 100% correct!

 

[SledderSteve]

Only way your getting 20mpg.. is if you are going a constant 40mph...<snip>

We passed a bunch of those folks last weekend. Even got to hear about ourselves at the bar when we put the sleds away.

"Then, there were these two cowboys on black sleds that came screaming by us..."

Interestingly enough, when the story teller found out that we were in fact the two "cowboys" on black sleds it came out that we were very polite in our passing etiquette and we did not go screaming by.

We kind of liked the cowboy part though.