race gas

[dittrich]

hello i'm running a 08 kfx 450 with k&n intake 13.8-1 high comp piston, full sparks exhaust and stage two hotcams and is wondering what the best race gas for a decent price is. i ran u-4 last weekend racing on the ice but got real expensive being my bike is a thirsty whale. thank you

[Jeff B]

QUOTE (ditt08 @ Jan 5 2009, 07:56 PM)

hello i'm running a 08 kfx 450 with k&n intake 13.8-1 high comp piston, full sparks exhaust and stage two hotcams and is wondering what the best race gas for a decent price is. i ran u-4 last weekend racing on the ice but got real expensive being my bike is a thirsty whale. thank you

You should be able to run Torco or Cam2 without any problems.... You don't need more than 110

[Extent Racing 21]

C-12 would be a great all around fuel for you!

[thomasdjames1]

QUOTE (ditt08 @ Jan 5 2009, 07:56 PM)

hello i'm running a 08 kfx 450 with k&n intake 13.8-1 high comp piston, full sparks exhaust and stage two hotcams and is wondering what the best race gas for a decent price is. i ran u-4 last weekend racing on the ice but got real expensive being my bike is a thirsty whale. thank you

How do you like that set up. I have trinity power kit(full pipe, FI controller, alumn. intake piece with K&N filter) right now. I am thinking about building mine with the 13.8-1 piston the small set of Hot Cams(I think that is stage 2) and mabe a Kids on Quads intake. I mostly ride in woods with lots of large hills. Is the low end power still there with the cams? Does the extra more than make up for the low end loss of the cams if any? Are you running a stock intake with K&N filter? What is the relibility like?

Thanks

[dittrich]

the only two fuels i have available to me around here is sunoco or vp. so i'm limited to the two choices i guess.

Thomas i like the set up so far i just put it in a few weeks ago and am running it studded on the ice. the bike is amazing for power. i was running with someone with tons or money in their bike and was able to beat them either out of luck or just a good bike. i have the k&n high velocity intake which eliminates the air box completely but i only run that on the ice. power seems strong out of the hole i pull everone on the holeshot.

[Jeff B]

QUOTE (ditt08 @ Jan 5 2009, 11:07 PM)

the only two fuels i have available to me around here is sunoco or vp. so i'm limited to the two choices i guess.

Thomas i like the set up so far i just put it in a few weeks ago and am running it studded on the ice. the bike is amazing for power. i was running with someone with tons or money in their bike and was able to beat them either out of luck or just a good bike. i have the k&n high velocity intake which eliminates the air box completely but i only run that on the ice. power seems strong out of the hole i pull everone on the holeshot.

By me they have sunoco race gas at the pump...100 or 106.... you got that?

[dittrich]

QUOTE (Jeff B @ Jan 6 2009, 12:01 AM)

By me they have sunoco race gas at the pump...100 or 106.... you got that?

we don't have it at the pump but we do have someone that sells it just out of a 55 gallon drum. is that stuff good and reliable or will it hurt my motor?

[Extent Racing 21]

i used to run the sunoco race fuel, i was running the 110 octane stuff though, works just like C-12.

Thomas as for your question to ditt08, the power would still be there, and would also make great power but since you ride in mostly woods i would skip the piston, leave the stock piston in it and go with the hot cams and intake. My last years race bike had stock piston with hot cams, intake, pipe and jetted perfectly and she was an absolute screamer. I even ran it in A and Pro Am open classes taking 5th, of course you would make a few extra HP with the piston but for woods i personally wouldnt change it, the stock piston is a 12.5 as it is.

[masterp0606]

QUOTE (Extent Racing 21 @ Jan 6 2009, 04:24 PM)

i used to run the sunoco race fuel, i was running the 110 octane stuff though, works just like C-12.

Thomas as for your question to ditt08, the power would still be there, and would also make great power but since you ride in mostly woods i would skip the piston, leave the stock piston in it and go with the hot cams and intake. My last years race bike had stock piston with hot cams, intake, pipe and jetted perfectly and she was an absolute screamer. I even ran it in A and Pro Am open classes taking 5th, of course you would make a few extra HP with the piston but for woods i personally wouldnt change it, the stock piston is a 12.5 as it is.

Stock compression is 12.1 i believe . I went with the Je 12.8:1 if you go to 13.1 you have to run race gas if its lower than 13 you can use high octane pump gas. The stock dirt bike piston for 2009 is 12.5 so maybe you could do that if it works with the atv