VP racing fuel

[Blakec9]

Hey guys, I have been told some people are running VP 4.4 in some slightly modified CRF450r's. I am looking around at my options that are local and wanted to know if VP113 regular would be ok to run in the same application. I don't have access to VP 4.4 at the moment and need something that will work in its place. Any suggestions on what VP would be best?

 

[sundog]

It will be ok if your compression ratio is 14:1 or less and you might have to re- jet the carb because it's an oxygenated fuel if that's even allowed in your class.

VP C12 would be an option.

 

[Blakec9]

Ok, I run RWYB so no rules. I am currently set with stock jetting in my carb. I am running 93 octane pump gas now but wanted to try VP. Is there another VP fuel you would recommend?

 

[MO Predator Racer]

I dont know anything about these motors but how would alcohol work as fuel?

 

[Blakec9]

I was on alcohol with a different carburetor setup. Fuel works great but consumption and blow by issues became a problem Hints why I switched over to a gas setup.

 

[Blakec9]

Decided to try C12.

 

[OVALTECH1]

try good ol AV GAS

 

[OVALTECH1]

Decided to try C12.

I run c12 in the race car… good Lord it smells good

 

[Sjg22]

Run E85

 

[MO Predator Racer]

I run c12 in the race car… good Lord it smells good

Yep we have ran C12 and C16 and then C25 I think it and they all smell amazing. If you buy VP pre mixed 2 stroke fuel for weed eaters and stuff when it’s burned it has a hint of the C12 smell in my opinion

 

[twostroketoowoke]

Just run 110. The performance between that, 4.4, C12 are negligible in smaller engines. Especially since you’re currently getting away with running 93 with no detonation.

 

[Hoppy]

Just run 110. The performance between that, 4.4, C12 are negligible in smaller engines. Especially since you’re currently getting away with running 93 with no detonation.

After you get 70 hp its tires, tires, tires. says an old man who still puts a kart on the track.

 

[twostroketoowoke]

After you get 70 hp its tires, tires, tires. says an old man who still puts a kart on the track.

Exactly. Run pump gas or methanol. Everything else is a waste of money

 

[MO Predator Racer]

If I remeber right C12 is over 100 bucks a pail. I think methanol is around 45-65.

 

[ECkarter]

Hey guys, I have been told some people are running VP 4.4 in some slightly modified CRF450r's. I am looking around at my options that are local and wanted to know if VP113 regular would be ok to run in the same application. I don't have access to VP 4.4 at the moment and need something that will work in its place. Any suggestions on what VP would be best?

91 non ethanol.

 

[sundog]

We use to get 100 octane at certain Sunoco stations right out of the pump, if you can find one of those.

 

[tecbigdog]

EC is right on. More octane DOES NOT mean your engine will go faster.............................................

 

[MO Predator Racer]

EC is right on. More octane DOES NOT mean your engine will go faster.............................................

More octane means you will go faster if you have the compression for it. But a motor made for gas will not pick up when extra ethanol is thrown at it. Infact I believe your motor will ever run a little hotter. They don't have the compression to burn that extra octane so it isn't needed.

 

[Blakec9]

I wasn't asking if the fuel would make me any faster. I was just asking what VP would be suggested. Having a better controlled fuel like VP has to be better then pump gas. You never know exactly what your going to get from the pump. I understand people have much success using pump gas but I personally wanted to try a VP fuel.

 

[sundog]

If you go to the VP web site, they have good descriptions of what the fuel is and what it's used for.