Ram pipe
 

Anyone fitted a short ram pipe inside a air filter housing and at the opening of a cold air intake on a Stromberg or SU? Any benefits in doing so to report?

Velocity stacks / ram pipes have been fitted (if you can get them to 'fit' in the filter housing). Can't advise on the quantifiable benefits.

https://mgaguru.com/mgtech/power/pp104.htm

B;

Naaah...never done that...
https://www.sw-em.com/IMG_5841.JPG
Source: https://www.sw-em.com/SU_Carb_Adding...ir_Cleaner.htm

Cheers

Any noticeable improvements Ron? I’m looking at doing similar in the single carb filter enclosure, adding a K&N air filter and as I already have a cold air intake add a flanged intake as well. Basically following David Vizard’s setup for a single SU.

The mouth of that stack is looking awfully close to the end plate on the air filter unless the end plate has a really large dome on it.

The one I have is 36mm deep and filter is 81mm deep. The alternative is a spacer between carb and filter housing with a internal taper.

Or I could cut it down and Tig weld the flange back on.

B; I can't say anything definite about that setup, because so far it is only on my "Training Carb" (an HS6 mounted on a wooden pedestal and used for demonstrations)...but it seems to me to be a nice configuration (actually not optimal, see response to 142Gs comment below!), and it is functionally quite similar to the Air Filter over VStacks arrangement in my 1800, which I have never felt was wanting for breathing!
https://www.sw-em.com/1800enginecomp.jpg

142G; I totally agree, and when I did a quick calculation of cross-sectional area comparing stack orifice to the band between end of stack and cover, I found the area to be less than orifice area...that wont do at all!! I have another configuration in the works...stay tuned!

Cheers

Some additional reading and info: http://barneymg.chicagolandmgclub.co...ower/pp104.htm

I have read the minimum recommended gap is 1 1/2”.