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ecotec inlet manifold
blakep82 - 28/2/08 at 08:32 PM

can't remember if i asked this before and can't find anything on the search



whats the best way to shape the tubes for these flanges or do i just weld the tubes on round? and what length should i make the runners?

zzr1100 carbs on a 2.0 ecotec

MikeRJ - 28/2/08 at 08:47 PM

quote:
Originally posted by blakep82

whats the best way to shape the tubes for these flanges


A vice or careful application of the percussive spanner should do the trick. As long as the inside circumference of your port runners is the same as the ovalised port you should have a nice smooth transition to the throttle bodies.

blakep82 - 28/2/08 at 08:51 PM

for some reason the pic doesn't work... the ports aren't oval

here's another one

jacko - 28/2/08 at 09:11 PM

HI have a look in my photos under zx9r carbs you will see how i made my manifold + the jig i used to make it
Jacko