Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Disabling intake and exhaust valves (going to 8 valves in a 16-v head)

Christ · 05-15-2012, 10:57 PM

Why not just swap the HF head on? It doesn't take long, and you get the proper intake manifold to deal with the required higher air velocity at lower speeds, as well as slightly larger valves than the 16V heads have, which allow better flow at low RPM.

And you can use the HF cam. You can also use your stock electronics to run that head, as long as you only use the head, and don't try to incorporate the recirc valve on the intake manifold.

I also have a complete HF swap I'm selling, if that's something you're interested in. It's currently in Johnson City at a buddy's house.

05-15-2012, 10:57 PM	#6 (permalink)
Christ Moderate your Moderation. Join Date: Nov 2008 Location: Troy, Pa. Posts: 8,919 Pasta - '96 Volkswagen Passat TDi 90 day: 45.22 mpg (US) Thanks: 1,369 Thanked 430 Times in 353 Posts	Why not just swap the HF head on? It doesn't take long, and you get the proper intake manifold to deal with the required higher air velocity at lower speeds, as well as slightly larger valves than the 16V heads have, which allow better flow at low RPM. And you can use the HF cam. You can also use your stock electronics to run that head, as long as you only use the head, and don't try to incorporate the recirc valve on the intake manifold. I also have a complete HF swap I'm selling, if that's something you're interested in. It's currently in Johnson City at a buddy's house. __________________ "¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"