Hi Jason,
I don't know this for a fact but there should be minimal length of
any flexible hose in the intake runners. The pulse amplitude in the
runners is surprisingly high and the flexible tube may act as a damper as it
flexes and destroy tuning effects. You might try different length metal
runners and couple them with short pieces of hose.
Let us know the results!
Tracy
----- Original Message -----
Sent: Sunday, July 30, 2006 10:07
AM
Subject: [FlyRotary] Re: Back in the
saddle again!
Ed,
I am using 1 ¾
secondary and 1 ½ primary tubes. That is what matched the port size on the
engine (when deformed to the oval shape of the port). The lengths of the
runners are eight inches from the side of the engine. The runners terminate
into a 4" manifold log and a 65 or 70 mm T/B. My plan is to build a new
manifold log with velocity stacks and then experiment with different length
radiator hose for runners. I know this is not optimal for flow but it should
get me in the ballpark quickly. Any suggestions are appreciated.
Thanks,
Jason