bulldawg4469

I have a 19lb and 24lb c&L mass air tube, the 19 measured 1mm larger than 24, is this right or did they send wrong tube?

AdderMk2

sounds about right to me... we need dudeboy (jason) to chime in with this one. He's got the measurments tucked away somewhere

dudeboy

Measure the inlet and outlet of the sample tube. Let us know...

bulldawg4469

the inlet and outlet is 15mm on 19, the inlet on 24 is 14mm but the outlet is about 17 or 18mm. didnt see that till you said measure both ends, thanks for input.

luckythirteen13

it makes sense that the tube for larger injectors is smaller. the c&l maf basically tricks the computer so you can run larger injectors.

the smaller the tube is, the less air that can flow through there. the lower volume of air is measured by the computer so it then shortens the injector pulse width. the shorter pulse width is what keeps your car from running rich when running a larger injector. the larger injector flows more but because its open for less time, the two cancel each other out and afr stays stoich

dudeboy

It's on my site at freewebs.com
Freewebs seems to be undergoing some major changes, and attention to detail isn't what it used to be. You may get a 'security warning' or 'virus alert' when you go to this page. It seems to be a false alarm... Freewebs has assured me several times that there is NO security threat on my site. Still, I can't make any gaurantees. I'm sorry for any inconvenience, and I am working on getting the site on somewhere else.
Freewebs has proven unreliable.

Here is the link...
http://www.freewebs.com/vristang/clsampletubes.htm
I have most common tube sizes listed there. Sizes are approximate, as I have seen some variation in the C&L parts.

good luck,
jason