What does taking the butterflies out do for the bike?
bigrile
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Page: 1
Created on: 06/13/11 08:27 PM
Replies: 4
bigrile2009
Location: Stockton
Joined: 07/20/09
Posts: 53
Hub
Joined: 02/05/09
Posts: 13718
RE: flies out
06/13/11 9:00 PM
Increases the action or the event to happen sooner. Swish your hand thru a vat of molasses. Swish your hand thru water. See that fluid speed flow difference? Something like that as in a different speed event.
* Last updated by: Hub on 6/13/2011 @ 9:01 PM *
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trainedkilla
Location:
Fort Mitchell, AL
Joined: 05/15/11
Posts: 127
RE: flies out
06/14/11 6:23 AM
Increases air flowand makes bike more responsive as a result.
2010 Special Edition Black/Titanium. Muzzy M10 Full System, PCV, F.A.I.C Map, NGK 9EK plugs, Vortex Shorty Levers, Vortex Rearsets, Vortex Rear Sprocket (43T), SpeedoHealer, EK ZZZ Chain, K and N Air and Oil Filter, Fender Eliminator, Smoked Rear Turn Signals, Galfer SS Brake lines (front and rear), Carbon Fiber Ram Air Covers, Custom Airbrushed Front Cowl, Driven Grips, Secondary Flies removed , blocked PAIRs and LC frame plugs.
privateer
Location: [random forest]
Joined: 02/16/09
Posts: 3605
RE: flies out
06/14/11 6:48 AM
Actually, it removes an air flow restriction which exists at lower rpms and gears.
The purpose of slow opening secondary butterflies was to keep all the horsepower and torque from being available in the first part of the throttle at lower rpms and gears. Thus keeping the front end on the ground, for example.
Lots of complaints, pre-2008. Everyone pulled the flies and put piggies on.
From 2008 forward, the ECU opens the secondary butterflies earlier, to the point of making pulling the flies on a 2008+ ZX14 very close to being a waste of time.
If I raced, I'd pull the flies on my 2008, but I don't race, so it doesn't matter.
* Last updated by: privateer on 6/14/2011 @ 6:51 AM *
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privateer
Location: [random forest]
Joined: 02/16/09
Posts: 3605
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