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Don't know about fuel pressure but would target 10.5 or 11:1. You may be giving up 2 or 3 HP but it will help with detonation and keeping cylinder temps cooler. Engine temps do actually run cooler when on the spray. The N2O is so cold going in it cools your engine down!!!

On the spray I would say to target 10.5:1 to be safe.

Yep, I have one. I also have a 2lb and and a 2.5 lb for sale. $100 shipped for the 10lb and $75 each for the others. You need a hose or anything? I have an extra hose or two? e-mail me: wayne@ecsexpress.com

About time It's about time Yamaha did something to this sled. I went away from Yamaha simply because they refused to address the crappy steering and darting of the Apex. Also, I felt it was crappy that they refused to get more HP out of their motor when most of the competition has. FINALLY...

Be careful going to a 90 shot. You may be getting very close to fuel pump capacity. Also...a 90 shot will empty your bottles pretty quick :) Put on an A/F guage and see what it reads. If Air / Fuel looks good you should be o.k.

I liked the Boondockers kit on my Apex. It worked great. If anyone is looking for nitrous kit for Apex...mine is for sale...no longer have the Apex. http://www.ty4stroke.com/viewtopic.php?p=807864#807864

Man, sorry to hear that. I hate to kick a man when he's down but I did say that you can't add 50% hp to you sled while only adding 27% fuel. The math does not work. A Yamaha Apex motor operates at or near a BSFC of .50 If you add HP, you need to add the equivalant amount of gas to maintain...

IT'S CRAZY HUH? EASY TO INSTALL AND MASSIVE POWER GAINS. CAN'T BEAT IT BANG FOR THE BUCK.

The nice thing about it is you have a wideband a/f and will know really quickly if you run short of fuel. I may be wrong but it was explained to me that your engine consumes X lbs per hour per horsepower. A stock Apex consumes around .50 pounds per hp per hour of fuel at wide open throttle...

If you are gaining about 2.5-3 Hp per gram you would be trying to add about 200HP worth of nitrous??? When Dynotech tested some apexes with Turbos the stock fuel pump and injectors ran out of capacity around 240-250 HP Total. Anything bigger than a 100 Hp shot you'll need to up the "fuel" if...

Are you running the Holman nozzles? If not, How does your system adjust for changes in bottle pressure? Can you buy just the holtzman nozzles? I'm running a Polaris now and thinking of installing my old (Boondocker) Nitrous kit from my Apex on it. On my Polaris I am running a PCIII. What...

Just thought I'd update you guys on this crazy race. I showed up on my sled to spectate and drink a coors light or two with my buddies. Everything was going as planned. Looked like about 100 sleds signed up for the various classes. They did an abreviated trail ride around circles on the lake...

AJ, 5 to 6 hours???? Actually only about 1.5 hours at the most from Oneida to Old Forge. Hell, you can ride sled from Oneida to Big moose in about 3 hours if you don't screw around too much. It's probably only about 120 miles by sled. Sorry I missed you guys at the race 2 weeks ago. I'm...

That is just nasty!

Looks like the Lake Effect machine is kicking in and Oneida Lake is getting hit right now. Don't know how much...depends on what the winds do. It won't be glare ice for sure. here is a pic about 60 miles north of Oneida Lake.

No problem. Your air box will be fine. Like I said, start thinking about installing an additional bottle in your trunk. That happy gas is really addicting :)

O.K. I just read the last 10 pages and now I'm fired up!!! I am going to make it one way or another. Girlfriend is going to be pissed! I may need to find a new one up at the Glenmore. Think one of those young hot bartenders will take me :) 42 year old man with XXl Shirt size...lol Yea, I...

Maury, I'm all too familiar with the blog. That is some old info. I spent two 2 full days at DTR with my sled testing pipes, fuel maps etc about 3 weeks ago. I see you are going. Tell Jim I said hello and ask him about our weekend long dyno session. --------------- AJ, I love the Dragon...

Hey AJ, Speed and all, I have been out of the loop since I have been running the stock Dragon this year. I'm going to try to make it at least as a spectator...lol It'll be good to see all of you and I'll help out if you need it. Wayne P.S. i saw the S/C or Turbo Apex with the...

Guys, Stopped by my dealer today in Central NY and they are blowing out their last two sleds. '09 XTX for $7250 plus sales tax and NY registration. '08 FX Nytro for about $7000. Kinda wish I had waited and maybe I would have bought that new XTX. Why the hell does Yamaha always give...