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Discussion Starter · #1 ·
At the end of this month there having sand drags at the Canadian River and I plan on entering. Was wondering what you guys would suggest...better with 13 t or 14t front sprocket?just got a set of sand star paddles to put on it also!and was also wondering if I should run the VP u4.2 racing fuel in it??any info on this would be very helpful....this will be my first time I've entered in anything like this.
 

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I've dont have much experience on sand, but just regular hare scramble races that I have been doing, I find the 13t a lot better, however flat out straight dragging I'd have to say my 14t is better. I have to agree with xx700xx on this one. And for racing fuel, IMO it doesn't do much for you. When I had my chevelle I tried all different things, and I was running 105 and 93, and was getting the same results. The only difference I found in my crotch rocket with the fuel, was the exhaust smelled prettier. I dont know what others think, but I think you'd be spending too much for gas when you dont need to. But as I said, it is my opinion. But I would def run the 14t, unless the drag is only 20 yards, lol.
 

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I run the U4.2, The reason being I have a 12:1 piston. There can be advantages to running this fuel over other high octanes because it is oxygenated. On quads with limited or choked intakes it can actually make more power compared to other non oxygenated fuels.
As the others said, I would run the 14t since you have the Big3
 

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you need to do some experimenting to find out the correct gearing you generally want to cross the line in the end of your power curve in fourth gear. But you need to factor in the luanch as well if you cant keep the front end down with the smaller front then you need to go up a size or come out the hole different.

U42 being that its oxygenated you will pick up some power over 93 its not a lot being your still running low comp we find on our drag builds we will pick up 2-3 hp with u42 over basic 110 or most of the other exoctic blends non oxy. DO NOT leave it in your quad though or you will be sorry it will plug stuff up it needs to be flushed after useage and yes i know they say its safe to leave but we use it a lot and know better. just using it will degrade your injector flow as well (1 gallon wont hurt but a lot will)
 

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Forgot to mention it's a low lead fuel, I hadn't noticed any problems as EHS mentioned but I always turned the fuel off and let it run till it died.
 

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Discussion Starter · #8 ·
So it looks like I'll be going back to the 14t.I found a five gallon can of u4.2 from local dealer and he did say it would be fine leaving it in the tank but think I'll flush the system to be on the safe side.they also said to run it straight....do I need to do this or mix it ?we have 88, 89 and 90 octane only in my area.thanks guys!
 

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You could mix if you want to save money as you really don't need it. You cannot leave the vent tube on the gas cap either, The U4.2 will evaporate easily. I simply but one if the little rubber carb line caps on mine when I put it up and take it off when I ride.
 

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Discussion Starter · #10 ·
thanks for all the info guys.can't wait for the sand drags and hopfully ill do good!was just trying to get the most out of it without going beyond the big 3. I never even considered drag racing it until I raced my cousin on is Suzuki 400 and smoked him twice.the first time I blew him away...well he said he wanted to try it again because he couldn't hear to shift gears on his because of the noise mine making.so we tried it again but he still didn't have a chance.I let him ride it and he couldn't believe how fast it was and said I should enter it in the sand drags.this is my first 4-wheeler and just flat ass love riding this thing!
 

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Discussion Starter · #12 ·
It depends on the paddles, if you have good ones then you'll find you want the 13 tooth, even with the big three. Crumby paddles won't really matter as they slip sop much anyway.

I have a buddy with a cammed, 727, 12:1 filtered and programmed raptor and he bogs with his new super tall paddles. It's Danny, from the skimming videos.
Well I don't know what paddles are good or not .I have a full set of itp sand stars that I haven't had the chance to try out yet.
 

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Discussion Starter · #14 ·
I have the 13t on right now...just haven't had the chance to try the paddles out yet.wish I was close to some dunes though!
 

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I'd agree with XX700XX, Just get a 13t and try it out. You could try them both in the same day. Having the complete exhaust you may not bog as scuzz mentioned, The only way to find out is try it. Let us know which one works better with your setup.
 

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For what it's worth, I recommend a straight paddle for sand drags. The Sand Stars are a good all around duning tire but you will be better off with a straight paddle. The Skat-Trak Extreme or Ripper is a good sand drag tire.
 

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For what it's worth, I recommend a straight paddle for sand drags. The Sand Stars are a good all around duning tire but you will be better off with a straight paddle. The Skat-Trak Extreme or Ripper is a good sand drag tire.
I 2nd this. If you get straight paddles you'll want the 13 tooth. The angled paddles will just spin compared to the aforementioned straight paddles.

I've ran 'em all.



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good luck, i would recommend removing your front fenders, lights, and anything you don't need. the bike is heavy and the fenders will create alot of drag. lighten it up!
 

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Discussion Starter · #20 ·
Well now I'm wishing I had some straight paddles but seems like alot of money to spend on them just to use one time a year.Think I would rather get some razors!should be fun anyways.Looks like ill be taking my front fenders off this weekend and testing the 13t and 14t with the sand stars.
 
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