K&N Air filter question

[voglit]

Don't want to step on anyones toes.... But... K-n has a tappered filter (2570 ?) That works very nice.

K-n. # sn-2570 , breathers un-125

 

[GT03235]

Can these be fitted without a fuel controller?

 

[bottlerocket]

Adding more air without adding more fuel wont make more power right?

 

[Blu2U2]

I was told by Allen Ulmer that a fuel programmer was not needed if the stock muffler was used.

 

[bottlerocket]

But what gains will you get?

 

[Blu2U2]

This is off of Ulmer's Web Site...
Improve low end & midrange 5-6 hp!
2-3 HP gain on top end!

I think these numbers are without any type of fuel programer??? Maybe someone who knows for sure (Allen U.) will reply?

 

[Nikolai]

My sled ran like garbage without the PC5. It was popping bad enough the sled was almost unrideable. Added the PC5 and it was a whole new animal.

 

[bottlerocket]

This is off of Ulmer's Web Site...
Improve low end & midrange 5-6 hp!
2-3 HP gain on top end!

I think these numbers are without any type of fuel programer??? Maybe someone who knows for sure (Allen U.) will reply?

With programmer...

 

[voglit]

My sled ran like garbage without the PC5. It was popping bad enough the sled was almost unrideable. Added the PC5 and it was a whole new animal.

. What RPM was the popping occuring? Not sure if that is what I'm hearing also. And was it under a load when it occurred or when you were in and out of the throttle at a steady pace?

 

[Nikolai]

Any time I was off the throttle and got back on it. It would continuously pop, it sounded horrible. The PC5 made a night and day difference. My sled did have the lean pop before the filter kit from my exhaust, the filters just made it a lot worse. A K&N kit by itself might be fine.

 

[Blu2U2]

This is off of Ulmer's Web Site...
Improve low end & midrange 5-6 hp!
2-3 HP gain on top end!

I think these numbers are without any type of fuel programer??? Maybe someone who knows for sure (Allen U.) will reply?

With programmer...

Are you certain of this???

 

[canoehead]

Allowing more air in with same total amount of fuel?.
Has anyone ever heard of Hoyle's or Bernoulli's principle?

 

[Blu2U2]

Who is getting upset here??? I am only human and do make mistakes. Thanks! ;-)

 

[NsNyTro]

I ran the filters last year and got a Small popping Noise just after engagement,i think there is a lean spot right there..but the Sled worked ok otherwise.I also have a Buddy who runs filters and a slip-on with no Programmer and his runs great.
I now have a PCV and ignition modual and it does run better for sure..but i do think some sleds don't need the Programmer for just Filters.

 

[canoehead]

Nikolai Would you consider it worth it all in all?