KX Riders
Maintenance & Technical => KX500 Original => Topic started by: stewart on April 14, 2008, 04:10:23 PM
-
q 16 fuel by vp racing fuel hauls butt.....but needs a richer jetting ,,just about flipped my bike over bakwards tonight in 4 th gear with q16 ..wow
-
Is that with 15:1 compression? The only stuff locally I've found is at the KTM dealer and the guy calls it 114 and doesn't even know what brand it is. He buys it in 55 gallon drums. I'll keep looking, hopefully for that q16 then.
-
Is that with 15:1 compression? The only stuff locally I've found is at the KTM dealer and the guy calls it 114 and doesn't even know what brand it is. He buys it in 55 gallon drums. I'll keep looking, hopefully for that q16 then.
yes 15 to 1,,,,you will only find the q 16 at vp
-
stewart will you still see big gains with a compression of 12:1 or 13:1? with out CCing every thing im thinking thats about where my compression is. with 10% oxygen content its got to be like a small turbo.
-
i would us vps ...u2 fuel...
-
my bike don't like u2 it pings under full load (i really need to cc this girl and find out where im at, i was getting 220lbs with my snap on gage and i just had the head cut again). and i don't think VP offers u2 any more. i think it was replace by u4.2. i might give u4.2 a chance it looks to have a little more motor octane. i have had good luck with c12 but like the extra power you get with oxygenated fuel.
-
i run U2E in my kart with a KX500 and it runs great for me. i just picked up some U2 because there was no more U2E left. i hope i works well.
-
the new Q16 in stewarts bike made a BIG diff. and it was running lean . the low end torq. was hard on the launch . with the new maxxis tire it wanted to hook and stand straight up . the other bikes ( running on trake tech 114 )would get the jump sometimes but the second you got it under you and was wide open it would run the other 2 bikes down and leave them by 20 yards . we were running about 90 yards before sliding another 60 yards.
-
stewart mixed u2 and track tech 114 (50/50) it worked good on the 2000 and 2003
-
NAMEING STEWARTS 3 BIKES . / 2003 MEAN / 2000 NASTY / 2001 GET THE HELL OFF ME NOW! :evil: :evil: :|
-
had to go from 178 mian to 185 mian with q 16 that worked great
-
So have you tried the q16 in the bike with the Lectron?
-
didn't put the lectron on yet but soon . stewart wanted to try to get the most out of it with the pwk . runs gr8t . low end is so controlable MID AND TOP WOOOW. easyer to launch and hill climb. i took off one last time as we were leaving our test grounds and took off in 2nd and was in fifth with in 40 yards with out letting off the gas at all . the Q16 and new maxxis tires are the best we have run yet . the bike is like a new bike . ribeable but meaner than before . you have to run next to someone else you have raced before to see the difference.WOW :-o :-o :-o maybe a 190 jet heee heee
-
have to say that q16 does run like a raped ape with the lectron
-
:-( just got 15 gallons of q16 $207 out the door. i hope it works good in my bike too.
-
Whats the reccomendation for jetting increase on a k5,stock, from Premium pump gas/Cam2, to the VP U2(or equivalent)? I have a 168 in it now. Same for a 250? Any other set-up issues? I race against plenty of VP-fueled bikes, but it seems like they are all jetted funny. REAL FAT on idle jet(in the hole in neutral). They sound loaded up. Then they sound lean on top end. They even pop some when at top rpm's. Is that normal VP traits? I play ride the same bikes, so is there any issues other than jetting to think about when switching back and forth between fuels? What about a 50/50 mix of Pump gas and VP? A waste of effort and cash?
-
thats not bad i paid maybe $130 for 5 gallons shipped
-
If you Paying that kind of money for race gas why not just run alcohol?On banshees their would be almost 20 % increase in power from race gas to alcohol.And its cheaper.Especialy if your running a hillclimber.Just my thought.
-
If you Paying that kind of money for race gas why not just run alcohol?On banshees their would be almost 20 % increase in power from race gas to alcohol.And its cheaper.Especialy if your running a hillclimber.Just my thought.
with alcohol you have to run it out of the bike with gas or it kills internals. you have to drill out the breather on the gas tank cap. get a bigger petcock and there is no jets available you have to get a good indexed dill set and drill your own jets. you also need a lot more timing advance more than the plate on my bike will turn even with slotting it. the idea has ran through my mind but i would just put NOS on it if i need that much more.
-
I heard something about crystalization on the exhaust side when running oxygenated fuels. You guys heard anything about that?
-G
-
dubb
you are right on that. my 450 was bad at that. it depends on what you have for jetting and the riding style. plus it eats aluminum too. you what to run the stuff that doesn't have msbte in it.
-
Whats the reccomendation for jetting increase on a k5,stock, from Premium pump gas/Cam2, to the VP U2(or equivalent)? I have a 168 in it now. Same for a 250? Any other set-up issues? I race against plenty of VP-fueled bikes, but it seems like they are all jetted funny. REAL FAT on idle jet(in the hole in neutral). They sound loaded up. Then they sound lean on top end. They even pop some when at top rpm's. Is that normal VP traits? I play ride the same bikes, so is there any issues other than jetting to think about when switching back and forth between fuels? What about a 50/50 mix of Pump gas and VP? A waste of effort and cash?
52 pilot ..175 mian on u2 stock moter at 1000 feet elavtion..70 degrees
-
i love Q16 awesome fuel. my bike was jetted for dumont 1,000 footish. put in the q16 @ 5,000 foot and the jetting was spot on. the bike screamed and was very crisp. and that smell, man i could go brain dead smelling that stuff.
-
I ran Q 16 for the first time this weekend at dumont. I'm hooked like a crack head hooked on crack rock, that stuff is great.
-
yeahhhhh . stewart hooked his Q16 barrle up to the air freshener i think glade makes it . just don't run your vent tube to your helmet . :roll: :?
-
Any thoughts / experiences on VP's C10 fuel? I know it's not their most potent stuff, but I'm looking for a milder race fuel that's lighter on the wallet.
-
I ran Q 16 for the first time this weekend at dumont. I'm hooked like a crack head hooked on crack rock, that stuff is great.
cool
-
Any thoughts / experiences on VP's C10 fuel? I know it's not their most potent stuff, but I'm looking for a milder race fuel that's lighter on the wallet.
all vps prouducts have there place would think cost and compersion ratio would be the factors
-
thats not bad i paid maybe $130 for 5 gallons shipped
Sweet, my wife would love to see the checkbook now :-o. I can burn 5 gallons aday on the ice, so $260 for the weekend I'll have too pass on this hp.
-
newp500 just tell her that you get what you pay for and that is why you married her . :wink:
-
Hey Mick, I am using VP c111 in mine and it works good. Way better than pump, I have no worries anymore.
-
I don't have a problem running pump right now, but in another year or so I'm going to have Eric Gorr do some motor work. I'm just trying to find a good cost effective raceing fuel. Doesn't have to be the best stuff...I'm thinking somewhere between 95-105 MON. I'll check out that C111 stuff.
Thanks, Mick
-
I don't have a problem running pump right now, but in another year or so I'm going to have Eric Gorr do some motor work. I'm just trying to find a good cost effective raceing fuel. Doesn't have to be the best stuff...I'm thinking somewhere between 95-105 MON. I'll check out that C111 stuff.
Thanks, Mick
you could try
VP RED
A great standard grade of racing fuel. Used in higher compression race engines up to 13:1, for any application where cost is a factor.
Color: Red
Motor Octane 105
Specific Gravity: .730-.745 @ 60? F
or
VP-110
Not your "standard" 110! Highest rated MON of any 110 fuel on the market. Formulated for use in naturally aspirated engines with CRs up to approximately 12:1-13:1. Works well in 2-strokes. Good lower cost alternative.
Color: Purple
Motor Octane 107
Research Octane: 113
R+M/2: 110
Specific Gravity: .720-.735 @ 60? F
i have never ran vp-red but i did run the 110 in my 250 and it worked good.
-
My problem is finding the stuff. I've been to all the dealers here in town and no-one carries it. I went to both dealers in Globe, AZ (76 miles away) and they don't carry it and can't get it. Next stop is Tucson (120 miles give or take) but things aren't looking good.
Here locally I can get Torco 110 though... :oops: