View Full Version : how may discs?

03-01-2008, 08:15 AM
I have a supertrapp supermeg on this build:
'08 screamin' eagle dyna
r&r cycles stage 4 cnc ported heads, valves are 1.94 intake and 1.63 exhaust
se257 cams
10.8 compression
se air cleaner
power commander
closed end cap with 20-3/8" holes drilled

Is 20 discs enough?

03-03-2008, 07:29 AM
No clue, we have no idea what 20-3/8" holes in a closed end cap due to the flow characteristics of the exhaust. How does it run? What does your tuner think?

03-03-2008, 04:22 PM
it runs good, dyno shows power falling off at 4500, should pull further...I'll attach dyno sheet...guess I could buy another end cap...can you recommend a number of discs with open or closed cap?


03-04-2008, 08:33 AM
Adding discs should give you more top end.