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FJR Motorcycle Forums
Technical & Mechanical Problems
Ported Head
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<blockquote data-quote="LAF" data-source="post: 924585" data-attributes="member: 20868"><p>If I had the head off and had someone close I would let them flow it for sure. The issue comes with cams. You would probably need to go bigger on the valve seats and valves and new springs to handle the lift of the new cam. Then you have to get it fuel and not sure what the max flow of the throttle bodies are. You could overcome that a bit with bigger injectors, but then you may need more fuel pressure, and then a good dyno to dial in a Power Commander.</p><p></p><p>If I had a friend and it was off I would have it flowed. Cant hurt. And I have no idea what kind of valves, seats, and springs are in there but there are some very good valve sets out there that could improve on things.</p><p></p><p>Effort verses the gain would be the big question but to flow a head is a good thing and may help equalizing the throttle bodies on a sync.</p></blockquote><p></p>
[QUOTE="LAF, post: 924585, member: 20868"] If I had the head off and had someone close I would let them flow it for sure. The issue comes with cams. You would probably need to go bigger on the valve seats and valves and new springs to handle the lift of the new cam. Then you have to get it fuel and not sure what the max flow of the throttle bodies are. You could overcome that a bit with bigger injectors, but then you may need more fuel pressure, and then a good dyno to dial in a Power Commander. If I had a friend and it was off I would have it flowed. Cant hurt. And I have no idea what kind of valves, seats, and springs are in there but there are some very good valve sets out there that could improve on things. Effort verses the gain would be the big question but to flow a head is a good thing and may help equalizing the throttle bodies on a sync. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Ported Head
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