what type fuel you running in the yfz 450

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#626731 - 06/13/07 05:46 AM what type fuel you running in the yfz 450
TTMRACING New Comer Registered: 06/13/07 Posts: 53 Loc: new york	i am running c-44 and u4.2 Edited by yfz06yell (06/13/07 05:47 AM)
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#626748 - 06/13/07 05:59 AM Re: what type fuel you running in the yfz 450 [Re: TTMRACING]
BBIII Cool Sum Bitch Registered: 09/14/05 Posts: 4944 Loc: Kansas city, Kansas	I run late model plus and C-14 _________________________ Bobby
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#626941 - 06/13/07 09:00 AM Re: what type fuel you running in the yfz 450 [Re: BBIII]
00Chevy Enthusiast Registered: 04/11/06 Posts: 553 Loc: Oklahoma City, Ok	how do you like U4.2? has it caused any damage to your cylinder head? _________________________ 558 Predator.
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#626960 - 06/13/07 09:05 AM Re: what type fuel you running in the yfz 450 [Re: 00Chevy]
TTMRACING New Comer Registered: 06/13/07 Posts: 53 Loc: new york	so far so good. i know that u4 gums up your valves. i was running mr-9 but its just to hard to get in my area. trying to get feed back from other racers to see about different fuels.
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#626966 - 06/13/07 09:06 AM Re: what type fuel you running in the yfz 450 [Re: TTMRACING]
dunejumper Cool Sum Bitch Registered: 05/05/06 Posts: 2005 Loc: Kansas City, Mo.	I run TT111
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#627155 - 06/13/07 10:30 AM Re: what type fuel you running in the yfz 450 [Re: TTMRACING]
Brady080 Cool Sum Bitch Registered: 08/20/05 Posts: 2105 Loc: Michigan, Shelby Boyz	Originally Posted By: yfz06yell so far so good. i know that u4 gums up your valves. i was running mr-9 but its just to hard to get in my area. trying to get feed back from other racers to see about different fuels. isn't the gains from the MR9 and MR10 close to the gains from alky?.....up to 10% gains i have heard how do u like running it? i read that its 87 octane so i assume it doesn't like compression? i am trying to find an alternate fuel to alky for the winter 30 degrees and below
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#627200 - 06/13/07 11:55 AM Re: what type fuel you running in the yfz 450 [Re: Brady080]
newtz Member Registered: 01/08/04 Posts: 344 Loc: romulus, mi	brady, i have a couple gals of u4 if you want to try it, your use to purging anyway. 75$ for 5 gallons is a little much for me _________________________ tyson racing
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#627212 - 06/13/07 12:09 PM Re: what type fuel you running in the yfz 450 [Re: newtz]
00Chevy Enthusiast Registered: 04/11/06 Posts: 553 Loc: Oklahoma City, Ok	does u4.2? gum up your head like the regular u4? _________________________ 558 Predator.
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#627214 - 06/13/07 12:10 PM Re: what type fuel you running in the yfz 450 [Re: 00Chevy]
00Chevy Enthusiast Registered: 04/11/06 Posts: 553 Loc: Oklahoma City, Ok	It would help alot if you would tell us your compression ratio, so we can suggest a fuel. _________________________ 558 Predator.
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#627274 - 06/13/07 12:29 PM Re: what type fuel you running in the yfz 450 [Re: 00Chevy]
TTMRACING New Comer Registered: 06/13/07 Posts: 53 Loc: new york	i am just trying to get feed back on other fuels so i can compare them to mine. u4.2 DOES NOT GUM UP OR HEAD AT ALL. mr-9 is a bitter fuel but in new york state you cant have mtbe. i run a 12:5 stock bore with 56 rear wheel hp. i know people on this site will say it cant be done with a stock bore(56hp) but its true.
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#627315 - 06/13/07 12:45 PM Re: what type fuel you running in the yfz 450 [Re: TTMRACING]
dunejumper Cool Sum Bitch Registered: 05/05/06 Posts: 2005 Loc: Kansas City, Mo.	It can be done for sure thats were I am with a 12.5:1
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#627327 - 06/13/07 01:08 PM Re: what type fuel you running in the yfz 450 [Re: dunejumper]
BBIII Cool Sum Bitch Registered: 09/14/05 Posts: 4944 Loc: Kansas city, Kansas	Mine is @ 56hp with a stock bore as well on c-14 _________________________ Bobby
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#627337 - 06/13/07 01:44 PM Re: what type fuel you running in the yfz 450 [Re: BBIII]
madracing Cool Sum Bitch Registered: 10/21/03 Posts: 3906 Loc: TAFT,CA	60ish on mr9 ,stock bore. i run mr9 with a 13:5-1 but i use Maxiuma OCTANe booster _________________________ "SLOWER THAN SOME FASTER THAN MOST"
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#627345 - 06/13/07 01:57 PM Re: what type fuel you running in the yfz 450 [Re: TTMRACING]
chuckiecheese Old Hand Registered: 07/22/06 Posts: 720 Loc: bluegrass	i ran the VP u4 and it was costing me 65 bucks a gallon. when kenz built my motor they opened it up and it sucked the fuel. so now i am running alky. _________________________ RIP Geno T Forcefed NICK
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#628158 - 06/13/07 08:46 PM Re: what type fuel you running in the yfz 450 [Re: chuckiecheese]
rednbluerider Rookie Registered: 01/04/06 Posts: 251 Loc: Tucson, Az	c12 or vp110 _________________________ When you're winning fight like you're losing!
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#628239 - 06/13/07 09:45 PM Re: what type fuel you running in the yfz 450 [Re: madracing]
BBIII Cool Sum Bitch Registered: 09/14/05 Posts: 4944 Loc: Kansas city, Kansas	Do you need the octane booster for the mr9? I am thinking about trying the mr9 but i got a 15-1 stock bore... what you think? _________________________ Bobby
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#628298 - 06/13/07 11:23 PM Re: what type fuel you running in the yfz 450 [Re: BBIII]
MTX36 Journeyman Registered: 04/24/04 Posts: 478 Loc: Glendale, AZ	C12 at 14:1
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#628439 - 06/14/07 07:29 AM Re: what type fuel you running in the yfz 450 [Re: BBIII]
madracing Cool Sum Bitch Registered: 10/21/03 Posts: 3906 Loc: TAFT,CA	yes its not even 90 octane _________________________ "SLOWER THAN SOME FASTER THAN MOST"
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#628589 - 06/14/07 08:51 AM Re: what type fuel you running in the yfz 450 [Re: madracing]
BBIII Cool Sum Bitch Registered: 09/14/05 Posts: 4944 Loc: Kansas city, Kansas	Well i asked because i know there are alot of guy's running u-2 on a 14-1 if not a 14-5-1 comp setup with no problem's. _________________________ Bobby
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#628591 - 06/14/07 08:57 AM Re: what type fuel you running in the yfz 450 [Re: BBIII]
00Chevy Enthusiast Registered: 04/11/06 Posts: 553 Loc: Oklahoma City, Ok	I ran U-2 with 12.5:1, I liked the power but it gummed up my intake ports bad! The oxy fuels have something more in them besides octane that resist detonation. \ If you really want to know what fuel is best for your setup call VP's main Tech guy: Jay Farnsworth 812-878-2025 _________________________ 558 Predator.
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