Re:intresting and simple manifold on ebay... questions about it.
 

Î'm gonna start making charge pipes out of rolled up aluminum foil and sell then on Ebay....they "reject" heat...LOL

Re:intresting and simple manifold on ebay... questions about it.
 

I take shits that look similar to that log ;)

Re:intresting and simple manifold on ebay... questions about it.
 

Hehehe, as ugly as it was that mani got the job done.
Made with what was around the garage w/ a Jiggsaw, grinder, drill, and rental welder. 100% of the fab credit goes to my brother. I just made dumb jokes and blew smoke in his face ;)


Circa 99' pics....

A V8 buddy didnt think it would work. Left his mark...
http://a0.cpimg.com/image/14/74/9296...-028001E0-.jpg

Turbo/mani test fit:
http://a5.cpimg.com/image/83/98/9297...-028001E0-.jpg

Getting....ummm....broke-in
http://a6.cpimg.com/image/1A/74/9296...-028001E0-.jpg

I love digging up old pics.
Heres the finished homebrew victory beer on the mani shot.
http://a5.cpimg.com/image/8D/99/9297...-028001E0-.jpg

One more...my Thunderbird IC before it hatched into the two core bastard it is now.
http://a1.cpimg.com/image/1F/74/9296...-028001E0-.jpg

Yeah, the square log manifolds blow...duhhhh, but it worked, for 2 years of daily panty tearing. God I wish I knew what the HF mani looked like then. We tried to find a VX? mani the day before cause' we knew it terminated up high, but whatever. Good times.

Re:intresting and simple manifold on ebay... questions about it.
 

Im getting some miles outa this pic... :)

How I felt about my A6 before going Bseries.
http://a2.cpimg.com/image/7C/88/1021...-010A00C3-.jpg

Re:intresting and simple manifold on ebay... questions about it.
 

leed... what size square piping was that you used? how thick was it? what material was it? about how much did that bit cost?

thanks
mark

Re:intresting and simple manifold on ebay... questions about it.
 

hahaha

leed did you use the lincoln weldpak 100 from home depot? how thick are your pieces? mustve taken a lot of weld/grind/weld/grind?

at least yours has chamfered sides.. that ebay one looks like a winner, and for 330$ lol

Re:intresting and simple manifold on ebay... questions about it.
 

Log manifolds are constant pressure designs.

Tubular manifolds are constant flow designs.

Square/box or tubular weld el log style... neither one flows. They aren't designed to, they are designed to be a plenum for building pressure. The ubiquitous constant pressure (log) manifold is why traditional turbo theory goes for wide LSA and no overlap in camshaft design. Exhaust reversion is a bitch.

If you use a tubular manifold and peaky turbo like Todd/HiTech/FFGeoff/Kooks/Tinker/blahblahblah where flow is promoted and TIP (turbine inlet pressure) from the restriction that the turbine wheel represents is minimized, then a turbo engine starts acting strangely like a NA engine, and likes some overlap and a narrower LSA.

The next log manifold I make, I'm not playing around with a bunch of stupid expensive schedule 40 els. I'm reaching right for the 14 gauge 1"X2" RHS mild steel and not even worrying about runners.

Re:intresting and simple manifold on ebay... questions about it.
 

Good points. Nice way to word it.

Re:intresting and simple manifold on ebay... questions about it.
 

lol... okay you spend way too much time around your car if your shitting turbo manifolds.

Re:intresting and simple manifold on ebay... questions about it.
 

RHS?