Originally Posted by Older Guy
Stopped by Mach One in Costa Mesa, CA - they had a ZX-10R they were going to put on the dyno and map...they had the fuel injection all apart and had removed one set of butterflies...they said that is one of the things they do when they do a dyno tune and re-map..anyone heard of this?
Wow, you're talking about me and my bike! I just joined this forum 5 minutes ago and this is my first post.
I realize that I'm new and don't have any credibility in this forum yet, however, you asked for it - so here goes...
The secondary throttle valves and the exhaustpipe valve are polution controls that rob the engine of power and throttle response. They have no other purpose. In order to effectively remove them, you have to:
a) install a full exhaust (Arata in my case)
b) remove the secondary butterflys and shaft
c) do a custom map with a Powercommander
The result is more HP and torque at all throttle settings. Richard at Mach1 knows exactly what he is doing. He did all the engine work on my 04 R1. I trust him completely. When he is finished, I'll have the best running ZX10 around...