Вот нашел чутку инфы на насиоке:

JDM Version 7 STI Cams
Intake: 274 -> 226-232 degrees duration
Exhaust: 274 -> 226-232 degrees duration

JDM Version 7 STI RA Spec CCams
Intake: 274 -> 226-232 degrees duration
Exhaust: 274 -> 226-232 degrees duration


JDM STI:
Intake ServiceManual=8.25mm, Measured=8.25
Exhaust ServiceManual=8.6mm, Measured=N/A

JDM STIRA Spec C
Intake ServiceManual=NA, Measured=8.9mm
Exhaust ServiceManual=NA, Measured=9.6mm

Stock WRX
Intake opens at 10 deg BTDC, closes at 50 deg ABDC. That equals 240 degrees total time.
Exhaust opens at 53 deg BBDC, closes at 7 deg ATDC. That equals 240 degrees total time.

US STI:
(AVCS Max)Intake opens at 15 deg BTDC, closes at 45 ABDC. That equals 240 degrees total time.
(AVCS Min)Intake opens at 5 deg ATDC, closes at 65 ABDC. That equals 240 degrees total time.
Exhaust opens at 55 deg BBDC, closes at 5 deg ATDC. That equals 240 degrees total time.

From this, you can derive that on the 2.5L STI, the CAM advance is variable by only 20 degrees. The JDM STIvaries by as much as 30, while the STI RAonly does up to about 15.

To convert this info to other quotes, you need to measure when the lift exceeds .050", and then start counting degrees. Either way, according the the manual the US WRX and US STI have the same duration cams.
Ссылко: http://forums.nasioc.com/forums/show...highlight=cams


PS Вот еще интересная инфа по совместимость запчастей с моторов: http://forums.nasioc.com/forums/show...6#post10671156 Перевел бы кто и к нам в вики запилил бы.