Hi guys .. i am planning to run turbo setup on 4af 7 rib and i am deciding which head I should run. I want run also high profile/duration cam so can anyone confirm if shims are 31mm on both heads?
I will port exhaust ports but dunno which intake ports are better .. if I get tvis one (2 ports) I would grind that separation and make it look like big port.
Witch smaller single port there is not much room to work with ..
I would also like try ceramic coating and some other stuff .. and I will run dizzy btw
Celica 7afe single port:
https://i.imgsafe.org/3f1f50c45a.jpg - billzilla said its best afe head out there .. hmm
https://i.imgsafe.org/3f1f323165.jpg
Avensis 7afe twinport
https://i.imgsafe.org/3f1f0c333c.jpg - i think intake got more potential
https://i.imgsafe.org/3f1f3b6818.jpg