| Length of
Pressure Line How does the pressure
line length effect performance:
A longer line "can" lean out the midrange
when the throttle is applied rapidly! Keep in
mind pressure is self equalizing [the tank and
pipe pressure will be the same] The only
consideration is if the pressure feed line is
restrictive, [i.e. long length or small
diameter] it can delay the time it takes the
tank to reach maximum pipe pressure. Pressure
dictates fuel flow at any given needle setting,
therefore a leaner midrange can result!
There is no ideal length, this is something
you can experiment with, In most cases 8" to
14" is common. This is something I would not
concern my self with until you have completely
mastered the art of tuning the standard low and
high-end needles.
Line length has a very small effect by
comparison and should be considered "fine"
tuning. |