Does anyone have knowledge of the differences in the cams? I've been told they are different.

 

Are you thinking that the cams would be changed in a way that might benefit the F20C? If so, don't you think they would be used in the JDM '04-'05 as well?

 

I believe I read that the intake cams were changed with MY04+. If I recall correctly the MY00-03 was designed to create some swirling behavior and this was removed from the MY04. I don't know if it was only low lobes or high lobes. Anyone else remember? This has come up before.

 

What heppend to UL? I'm, sure he looked into this,......

 

on the majestic honda site years 2000-2003 product number is the same. on the 2004 s2k the part number changes. Best bet would be to call honda and double check with the actual honda part numbers. Even then its possible it could still be the same.

 

Intuitively, it seems like the cams would need a longer duration to compensate for the longer stroke. It is just a guess.

 

good point

 

They are different

Honda News 2004 S2000 Powertrain Part 1


VTEC Low speed Profile - Low-speed intake duration decreased and exhaust duration increased for more torque


VTEC High speed Profile - High-speed intake and exhaust duration slightly decreased for torque and top horsepower


-- Paul