Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Designing a header for fuel economy (for a Metro G10 1.0L)

freebeard · 02-09-2016, 08:36 PM

From Permalink #90

Did we decide you'd get better scavenging with a radius between the pipes? Instead of V-notching and circularizing the three pipes, maybe cut them with a V-tab and bend it out to for 1/3 of the transition. The cut the collector with three V-tabs and bend them in to close.

Edit: I think there would be less moving metal around, unless you triangularize the collector piece. Or maybe even if...

02-09-2016, 08:36 PM	#101 (permalink)
freebeard Master EcoModder Join Date: Aug 2012 Location: northwest of normal Posts: 27,692 Thanks: 7,774 Thanked 8,584 Times in 7,068 Posts	From Permalink #90 Did we decide you'd get better scavenging with a radius between the pipes? Instead of V-notching and circularizing the three pipes, maybe cut them with a V-tab and bend it out to for 1/3 of the transition. The cut the collector with three V-tabs and bend them in to close. Edit: I think there would be less moving metal around, unless you triangularize the collector piece. Or maybe even if... Last edited by freebeard; 02-09-2016 at 08:42 PM..