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View Full Version : 440 kit what next?



440ex2001
11-19-2004, 01:00 PM
I have a ross 11.2:1 440 kit and its almost broke in. I also have hotcam stage 1 p&p'd head and a R-4 slip on. Whats the next upgrade I should do to get full potential out of this engine? 39mm FCR? Curtis sparx X-6? Another cam? I will try to get all these upgrades eventually. Which one would you guys go wiith first? I'm thinking Full exhaust or Carb.

EXDUNER127
11-19-2004, 01:11 PM
full exhaust of course, you have a bigger motor with a ported head who wants to breath better but has a restrictive stock head pipe that wont give him this extra breathing room! Your bike is running like a chain smoker until you put a that full exhaust on. my did the same set up as you for the most part, and when he added a full exhaust over just the silencer, it made quite a diference, hope that helps?

440ex2001
11-19-2004, 01:14 PM
thanks man, i was the samething (full exhaust) Right now I cant tell huge difference between my previous set up (stock bore 11:1)
So i guess I need to start saving for a x-6

EXDUNER127
11-19-2004, 01:17 PM
and then since you already have a 440 start thinking of your valves getting work, then carb!;)