Hi all,
This works great for me (sea level in So. Cal.):
1. W/B slip on with 8 discs and the quiet core insert at the rear.
2. Slip-on K&N filter #RU-1770, mounted directly to the carb, with an Outerwear cover.
3. Dynojet jet kit, with DJ needle in the 2nd slot from top.
4. DJ main jet, #175
5. Mixture screw out to 3.5 turns
6. 38 tooth rear sprocket
PS...for sand, use Skat Trak Haulers in 20x10x10 (8 paddles), AVOID the Sand GECKOS!!!
Set like this it hauls ass, all the way to the rev limiter (8500rpm on mine), wheelies easily, leaps from berm to berm in the mid-range, and is far better running than ANY other jetting combo I tried (and I am probably the Predator jetting king, at about 40 changes!!!) Be sure to read my past posts regarding changing the carb screws...you'll be glad if you do!!!
I have not yet run it against Tres' Predator to see how my setup compares to his AirForce kit, but we will get together at Glamis soon. I like the simplicity of the slip on, it's very easy maintenance, weight reduction, and the placement of the filter higher up out of the incoming sand!
Although Gary at Superbike Shop says it is an outdated way of doing it, I am very satisfied, and don't feel threatened by any similarly set up "AirForce" kit Predators. Cost is also a factor, since the Airforce kit is $100.00, plus $40.00 for the drop in K&N panel filter, plus more filter maintenance required.
My DJ kit and the slip-on K&N cost only about $90.00 total through places like Rocky Mountain ATV on the web.
My next real $$$ outlay will be the Vortex CDI, at about $350.00...that will be the real help fo this machine!!!! Several guys have them now, and reports should be coming in soon to tell about results....
Just my current opinion...hope it helps....
JJ