Lloyd551 Posted April 10, 2017 Report Share Posted April 10, 2017 hi, I'm building a Spit 1500 and I'm running 2 twin DCOE 40's. I know the length of a Trumpet will effect how the engine preforms but I want to know how the length will effect it ? What sort of length would you guys recommend, any one got a similar carb set up ? All help appreciated, thanks !! Link to comment Share on other sites More sharing options...
Clive Posted April 10, 2017 Report Share Posted April 10, 2017 Longer the better, but you want (depending on who you ask) 25-40mm clearance space from trumpet end to filter. There is a very good article here (albeit with EFI, but the principles are the same) http://www.emeraldm3d.com/articles/emr-adj-length-intake/ On my spitfire, I have chopped the inner wing to provide a couple of inches of extra clearance to get as long an intake length as possible. Link to comment Share on other sites More sharing options...
Lloyd551 Posted April 10, 2017 Author Report Share Posted April 10, 2017 brilliant thanks ! good read. (i'm only 20 so have little experience with carbs) Link to comment Share on other sites More sharing options...
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