I have spare bigport cams and thinking of installing them this weekend. The bigport has a higher lift and duration? so it should give a few more kw advantage? What are your thoughts? give it a go or dont bother?
Stock 4AG(Z)EU used on 90~91 Hi-comp. AE92 and supercharged AW11. P/N Intake 13501-16030. Ex. 13502-16020, Good turbo cam. Keeps exhaust pressures high without blowing back though intake manifold.
Bigport 4AG
240°
7.56mm
9°BTDC
(Stock -max lift @ 111°)
51°BBDC
(Stock -max lift @ 111°)
Stock 4AGEU used on AE86 and AW11. P/N Intake 13501-16010. Ex. 13502-16010. Some have found good power setting the maximum lobe lift for the exhaust at 100°BTDC and intake at 100°ATDC. For more bottom end power retard the exhaust 4° and advance the intake 3°. For more top end, advance intake 4°and exhaust 3° from stock settings.
Also will this change the sound characteristics? I really love the roar of the tvis motor over the small port.. is that with the intake? or cams?
Tue, 13 January 2004 10:48
