help understanding VTEC in the s2000

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May 6, 2006 | 07:14 AM

#11

IcebergS2000

Joined: Mar 2006

Posts: 308

Likes: 1

Quote:

Originally Posted by Tsa1,May 5 2006, 06:48 PM

the main difference between your wifes civic si and your friends type-s is that the K20A2 found in the rsx has vtec on both the intake and exhaust cams, while the civic has it on the intake cam only. the s2000 engine has it on both the intake and exhaust cams as well but doesnt vary INTAKE valve timing constantly as on i-vtec engines. i think if honda added i-vtec they could further inprove torque on the car considerable in the lower rpms.

So the F20 is more like the VTEC on B-series motors, correct?

May 6, 2006 | 08:00 AM

#12

INDYMAC

Registered User

Joined: Nov 2003

Posts: 1,729

Likes: 4

From: Magnolia, TX

Quote:

Originally Posted by Saboten,May 6 2006, 08:10 AM

They don't need vtec because they are cammed for high rpm power, since they're never going to to below a certain rpm range when racing

If the speed limit is 60MPH in the pits; the pace car goes 80-100MPH, and the drivers have to come to a complete stop and start up again in the pits without stalling, it seems like a Honda built racing engine would benefit from VTEC technology.