Traildemon
Pro
ECP
Hold off on ECP ?? I have one on my 03 RX and love it. Some improvement in acceleration & GREAT improvment in throttle response !
Hold off on ECP ?? I have one on my 03 RX and love it. Some improvement in acceleration & GREAT improvment in throttle response !
04rxwarrior06
Veteran
see my sled has this dead spot off the line and thats where i lose that F1000.... he really didnt pull much after that. you guys his sled has 900 miles on it and that is supposed to be arctic cats finest.... and i think i did a good job only leting him get 3 sled lengths in front of me for having 155 horse to my stock 04 warrior. SO.........???? ECP? AIR BOX MOD? ULMER CLUTCH? HEEL CLICKER? GEARING?
LazyBastard
TY 4 Stroke God
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That may well be the case, but if something is wrong with the cat, SO BE IT. We're not dealing with an equal state of tune. We're looking to beat it in its CURRENT state of tune, and knowing that the competitor has a 20 hp advantage makes it very embarrassing to him, regardless of something being a little off about it. And it absolutely IS that embarrassment that we're going for -- there are not many other reasons for a recreational rider to worry about the last 3 lengths.Turk said:
LazyBastard
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Re: ECP
Acceleration improved by the amount of time that it takes for your thumb to push the lever from zero to full. Throttle response is one of the things that it HARMS -- stock throttle response is approximately linear (push lever half way for half power), yours is diminishing exponentially (push lever 1/3 way for 90% power, half way for 95%, second half gives you the remaining 5%.Traildemon said:Hold off on ECP ?? I have one on my 03 RX and love it. Some improvement in acceleration & GREAT improvment in throttle response !
LazyBastard
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04rxwarrior06 said:
Ulmer kit + 42T bottom gear (which you can also get from ulmer).
DoktorC
TY 4 Stroke Master
Re: ECP
If the sled responds better to throttle inputs it has better throttle response...linear or not. The ECP's work. My sled is quicker and faster with them on. It does not burn oil and I'm still getting better mileage then an Apex.
Warrior your dead spot can be easily clutched out...listen to turk's clutching advise or buy Ulmer's kit either way you'll be far better off.
LazyBastard said:Acceleration improved by the amount of time that it takes for your thumb to push the lever from zero to full. Throttle response is one of the things that it HARMS -- stock throttle response is approximately linear (push lever half way for half power), yours is diminishing exponentially (push lever 1/3 way for 90% power, half way for 95%, second half gives you the remaining 5%.Traildemon said:Hold off on ECP ?? I have one on my 03 RX and love it. Some improvement in acceleration & GREAT improvment in throttle response !
If the sled responds better to throttle inputs it has better throttle response...linear or not. The ECP's work. My sled is quicker and faster with them on. It does not burn oil and I'm still getting better mileage then an Apex.
Warrior your dead spot can be easily clutched out...listen to turk's clutching advise or buy Ulmer's kit either way you'll be far better off.
bigcountry
Pro
i have k&n filters an excell exhaust and a pioneer roller secondary and the jetting made a world of difference on my sled. it used to fall on its face in the mid range..... needless to say that is completly gone and just today i ran an 07 apex rtx in about 800 feet and had 3 sleds on him.... i'm not a big gear head nore do i have mountains of knowledge like most of the people on here but the jetting made my 04 warrior a completley different sled. havn't found an f1000 on the trail yet but it can't be to much more than an apex and i think that if i can keep the race to less than a 1000ft i'm gonna get him. good luck with whatever mods you choose!!
04rxwarrior06 said:
You are right "YOU DID A GOOD JOB" you have all the tools in the box you just have to take the wrapper off and plug them in. I am running Heel clicker II's in 2 RX's and my Attack. It is "THE" single biggest thing you can do to wake that sled up and tune out the flat spot. I have over 12,000 miles on them and I have 4 other buddies running them and just installed a set in an 05 RX last night.
I blew a set of weights on my 03 with the stroked 1100cc Apex motor last year because I was running the speed (overdrive) sheaves with a carlisle belt that delaminated and the strings got cought in the shoulders. I know of 2 other people that tore up weights and were both associated with belt failures. You are going to have to keep an eye on the belts and change them out more often.
With the Heel clicker kit you get new (much heavier) springs for both the primary and the secondary. the belt tension or squeeze is tons more than stock and eliminates belt slippage which takes a toll on the belt. With a 136 track and studs the hook up is transfered right to the belt and there is no slip to help aleviate the shock.
about 20 yrs ago top fuel and funny cars hit a wall with times and no matter what HP gains they got they could not go any faster. One of the top teams I can't remember who put sencors on the input and output sides of the clutch and found that with the clutch fully engaged there was slippage they never considered and thus the birth of the hydraulic tunable pressure clutch was born and sub 4 second runs became everyday occurance.
Same issue here the stock weights & Helix ramps have been upgraded for the RX & The Apex but the body & springs of the clutch and primary is the same as found on 1990's sleds with 80 to 100 hp.
My stock 05 RX became deadly to anything it ran against at mid 130's hp vs 150 hp yammis with instant throttle response of fuel injection out runs them at 500' by 3 to 4 lengths. Mach Z and AC 1000's leave me at the line but I run them down through the mid range and pass on top end.
My 03 with the stroker in it was insane running 90 mph and nail it would pull the skis out to over 120. & this was not because of loose limiter straps or control rod let out.
Rider style, hookup (chasis setup & studding), snow conditions and a multitude of other variables will always play into the mix especially when trying to race on snow & ice.
For $230 the clutch is the biggest bang for the $$$ any way any how. Installation is easy - about 1 hr but you need a clutch vise $80 and the secondary spring installation is the hardest part and requires 2 people the first time you do it.
Turk
Tech Advisor
I have used the stock secondary spring with no probs. That yellow cat secondary spring goes right in the trash.
Turk said:
I have an 05 set up with the yellow sppring and set one up last night with the stock one going to go test the 2 Thursday to see what we like the best.
hlmrx1
TY 4 Stroke Guru
I ran a HC setup in my 03 RX1 stock and then turbo'd with more weight added of course and didn't have a problem with clutch exploding in the 3 years or so that I ran that sled on both snow and asphalt. Of course I never ran anything but a Yamaha belt and I did make sure the weights cleared the clutch housing by filing off some material. HC instructions say it is not necessary, however I believe that they would have made contact when fully open and I did not want to take that chance. Never ran against an F1000 when mine was stock but I did run against a buddies 03 F7 and the race was determined by who got the jump at the starting line. If I was to go out and replace my stock weights with aftermarket I would go with the HC's and get Turk's advice on how to set them up.
Black 1000
TY 4 Stroke Junkie
I will say this and no offense to anyone else but TURK knows his sh*t down to the gram
Turk said:
I rode both secondary setups Thursday and I didn't feel much diff. we rode to far to do any real timed trials but I also found out that heel clicker people no longer send the yellow spring with the kit only the white primary and they also include the black high altitude primary for out west.
Yamadog said:
Feeling the seat of pants and testing are two different things.I use to have my own porta tree timing system well i made a few runs with it off and the sled felt a lot faster seat of the pants but was actually slower.Use another sled to race for testing purposes.
Yeah we were going to try that but the trails to enviting and no good lakes with hard pack to setup on.
