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Re: Help please getting a new engine to start

Posted: Thu Oct 17, 2013 9:46 am
by bmcecosse
Yes - but it's not a neat fit to the carb inlet - and it's not clear if there are maybe screws in the holes?? Hope not!

Re: Help please getting a new engine to start

Posted: Sat Oct 19, 2013 12:54 pm
by Boris64
George

I spent far too long recently trying to understand the what and why of carbs and came across this piece of research on ram pipes.

I can't speak for the validity of the testing but there is a logic in the section profiles.

The soft radius seems to be key.

Pete[frame]Image[/frame]

Re: Help please getting a new engine to start

Posted: Sat Oct 19, 2013 12:57 pm
by bmcecosse
Of course it is - to eliminate the vena contracta..... Best done on the carb inlet I reckon - but yours will be fine as long as it's not blocking the vents.....