Anybody compare top end speeds between airbox and K&N's?

[Mighty]

What's the verdict? My Warrior gets to 100 pretty quick but seems to hit a wall. I did hit 111 on a very short burst on a hard packed road, but top end seemed much higher on my RX-1. Could it be the 136 skid, Freddies K&N's or did Yamaha possibly make the 04 speddo's more accurate?

I also have the secondary set at 80.

 

[1xr]

I have a 136 kit on my rx1 top end last year at best was 121 with stock air box and stock ramps, and the same with ramp changes. Ecp filters this year I got it up to 123 once and 121 yesterday. But before the snow came this year I used a 121 track shaved with picks and the top end was alot more 130 and still climbing. I'm still toying with the jetting with these filters I think for me I need a little more than 165 jets. To what exactally I'm not shure yet.

 

[Fullback]

Mighty, I believe that your gearing has something to do with it as well as the deeper/longer track. My 136 converted shorty with the 23 tooth top gear is slower on top than last year. The trade-off with traction was worth it. I don't have to shy away from shorter races in loose snow anymore. The best I saw on the lake last year was 122, this year 114. Pretty much the same conditions. I've rode this year with and without the filter kit and I'm leaving it on. More mid range pull... Bob

 

[monker]

Mighty, take a look here

http://www.rx1.info/viewtopic.php?t=2922

Neither one of the warriors had the filters, but it does still give some comparisons.

 

[Silver]

Mighty 125 mph stock Warrior .On my sled very big difference when sled got over 700 miles on it.Just ask my buddy this weekend.I must say once sled is broken in have 1000 miles now stock clutching is pretty good.I have a very good gauge in my bubbies zrt 800 about as even as 2 sled can get.I will see what the HH's can do.