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  #1  
Old 09-25-2003, 05:39 PM
Mikelehmann's Avatar
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Default Who uses race gas

     

was wonder which gas you guys with the CRF450 run high test pump or race gas?
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  #2  
Old 09-25-2003, 06:18 PM
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Default Re: Who uses race gas

unless you have significantly upped the compression or are running lean jetting, you're wasting your $$.

ultimate 4 is the only fuel to show a HP gain.
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Old 09-25-2003, 07:39 PM
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Default Re: Who uses race gas

Three of my riding buddies have CRF 450's. Two run Amoco 93 exclusively and the third guy runs the Ultimate 4. The third guy put a big bore kit on the 450 or 480 as it is now. He also owns the local gas station that sells Ultimate 4 and is the only one of us that can afford it at $8 per gallon. He does say that he could tell a difference from the Ultimate 4 vs. 93 pump gas. I believe one of the old issues of Motorcross Action had the Ultimate 4 giving the CRF 450 a 4-6 HP gain over stock. Sorry so lengthy but hope it helps.
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Old 09-25-2003, 07:49 PM
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Default Re: Who uses race gas

only riders in the B and Money classes will need bikes moded out enough to use race gas. but if yo do have a porting job and higher comperssion you need to get it.
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  #5  
Old 09-25-2003, 09:13 PM
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Default Re: Who uses race gas

Chevron Pump 91 here. To be honest, I could never stomach the price of race gas.
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Old 09-25-2003, 09:47 PM
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Default Re: Who uses race gas

Quote:
Originally posted by Woody_CRF
Chevron Pump 91 here. To be honest, I could never stomach the price of race gas.
who says that pump gas is cheap??? ::

i remember when it was 85 cents a gallon. and my parents remember my grandfather complaining about the price going up to .25/gallon...


:

oh and i run pump 91-92 octane, depends on the station i go to.
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  #7  
Old 09-26-2003, 06:59 AM
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Default Re: Who uses race gas

Uh why don't you compare it to race gas prices and then lets talk again.
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  #8  
Old 09-26-2003, 10:38 AM
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Default Re: Who uses race gas

Just curious, has anyone tried using an octane booster that you can buy from an auto parts store. I use 91 octane in my truck and I added some of this last week to one tank just to see if there was a difference and there was a noticable difference. It was like $2 a can and the can treats up to 20 gallons of gas.
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  #9  
Old 09-26-2003, 11:08 AM
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Default Re: Who uses race gas

I use 93 octane pump gas
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  #10  
Old 09-26-2003, 11:11 AM
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Default Re: Who uses race gas

91 pump gas is the highest you can get in So Cal.
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