head collector ?

[Lorna c]

what is this and what does it do ,etc . pls .

[redroadster]

Header collector
a new piece of the headers that the 4 individual pipes turn into 1 pipe
Its welded in. Mine kinda needs one too

[cole455]

Hmmm. I thought it was gonna be a post about a guy hoarding u20 heads.

[keith0alan]

Somebody talking about me? I don't have that many and I can stop any time.

[mtresillian]

The collector where the individual primary header pipes join. Cam be numerous combinations such as 4-into1 as per the pics below. Or 4into 2 which can then go into 1 or tri-y design. Search that term on google.

They play an important role in facilitating the scavenging effect of headers among other things.

These ones were made by Alastair Sutton-Davies in Brisbane, Australia (where i live too). They will be going on my car soon.

IMG_20170923_153548.jpg

IMG_20170923_154656.jpg

IMG_20170923_154643.jpg

[Lorna c]

awah I get this . I went 4-2-1 on my header and the pipes must match the correct path of the firing order . like ours is 1-5/2&3 for the air push pull thing helps out the other one corresponding one .or something like that . now is it like a smog thing in exhaust systems inside this area or is it this area period . ?

[Lorna c]

lol 1&4

[dbrick]

Header design is a black art, there is alot of science involved, but still an art. Generally people want a merge collector for smooth flow, alot comes down to what fits under the car and won't get destroyed first speed bump

[Lorna c]

Header design is a black art, there is alot of science involved, but still an art. Generally people want a merge collector for smooth flow, alot comes down to what fits under the car and won't get destroyed first speed bump

and theirs just barely room for a 4/2/1 . I think I cracked mine bending it into place . it's a bit rumbly .but I kinda like it But , it's hurting performance and eventually valves so I'm going to dig in there again ,sooner than later.. better than gear oil that's for sure I read up on it for two or three weeks with mine I put together and I still barely have a concept. like each thing that's apart of this motor , each thing is it's own specialty . like goes intricate . so I respect the depth of all ,and know I don't know