OB_easyrider
Registered
This is a repost of a conversation that started on the ZX-12 site. However there seem to be more people on this site with technical information regarding engines. I hope I can get some information regarding engine performance with minimal flaming due to the bikes used for the example. Assume both bikes have the same stroke (which is true).
"Many people think the ZX-12 is maxed out performance wise due to the small displacement. If the ZX-9 is putting out 140HP to the wheel and the ZX-12 is rumoured to only put out 160HP to the wheel then assuming linear HP/CU the ZX-12 should be capable of 185+HP at the rear wheel with similar techniques (math: 140hp*1200cc/900cc = 187hp). Therefore perhaps the ZX-12 has some relatively serious after market potential after all, without over boring."
My question is: does HP go up linearly with displacement? If so, what has the ZX-9 done to get better HP efficiency vs. Displacement than the ZX-12. Politically we can say they capped it due to anti-HP lobbying. Or can we expect some simple ECU re-mapping to get us the big gains? One of the pre-release ZX-12 was dyno'ed at 161HP apparently so I think the numbers above are reasonably valid for arguements sake.
Does anyone have any comments on this?
[This message has been edited by easyrider (edited 12 October 1999).]
"Many people think the ZX-12 is maxed out performance wise due to the small displacement. If the ZX-9 is putting out 140HP to the wheel and the ZX-12 is rumoured to only put out 160HP to the wheel then assuming linear HP/CU the ZX-12 should be capable of 185+HP at the rear wheel with similar techniques (math: 140hp*1200cc/900cc = 187hp). Therefore perhaps the ZX-12 has some relatively serious after market potential after all, without over boring."
My question is: does HP go up linearly with displacement? If so, what has the ZX-9 done to get better HP efficiency vs. Displacement than the ZX-12. Politically we can say they capped it due to anti-HP lobbying. Or can we expect some simple ECU re-mapping to get us the big gains? One of the pre-release ZX-12 was dyno'ed at 161HP apparently so I think the numbers above are reasonably valid for arguements sake.
Does anyone have any comments on this?
[This message has been edited by easyrider (edited 12 October 1999).]