What type of altitude changes can be ridden without having to rejet with the FCR's?

 

TTT

 

TTT

 

I also would love to know the answer to this question. It might help me think I can offord them![img]i/expressions/face-icon-small-sad.gif[/img]

 

Anyone have any input?

Basically what I want to know is am I going to have fart around with these carbs for variations in altitude? I'm not talking about extreme changes in altitude.

 

I'm headed up to the Cinders at the end of the month so I'll know more then. But I'm pretty sure that I'll have to atleast adjust the needles.

 

How does jetting compare with the stock carbs?
Easier
Harder?
Same

 

Harder, there are so many jets, slow, slow air, pilot, main, needle etc. However all I've done so far is move the needle and they seem fine.

 

anyone else?

 

I talked to a tech at Sudco and he tells me you should get about 2000' out of each main jet although I have yet to test this beyond seat of the pants, I'll dyno tuning after Memorial day, after that I expect to need only main jet or slight clip adjustments for different altitudes, the FCR's are highly tuneable, lots of jets and needles, the dyno is the only way to get it tuned properly IMHO