toecutter Posted June 3, 2007 Share Posted June 3, 2007 Hi Guys, I've just bought some DHLA 40mm triple Dellorto's carbs. I bought them from the Italian fella many have delt with on e-bay. I've asked him to hold off on shipping until I tell him what size chokes I want. The plan is to set these up on a spare N42/N42 L28 I have sitting in the garage. At the moment I have not selected the cam or any other parts so information re motor set up is vague...I hope to instal a mild cam and want some general info on what set up this carbs would work with, just a rough idea to minimise the amount of money I'll have to spend when it comes time to tune these carbs. I'm thinking about requesting one of the following two set ups for the 40's I just bought based on some of the info found on the many threads I have read through here; 30mm chokes 7548.3 aux venturi 7772.11 emulsion tubes 130 mains 180 air correctors 57 idles 42 pumps or 32mm chokes 7772.3 emulsion tubes 135 mains 210 air correctors 45 idles 55 pumps Opinions? Would 30mm chokes be too small? Quote Link to comment Share on other sites More sharing options...
Administrators SuperDan Posted June 3, 2007 Administrators Share Posted June 3, 2007 I bought my DHLA's from the same guy, very nice person. Here is a little DOS based application that I used to calculate what chokes, jets etc I needed for my setup. This program is for 4 cyl engines so you need to recalculate engine size in cc's using. Size in cc's divided 6 then times that by 4 So for your 2.8 it would be. 2800 divided by 6 = 467 times 4 = 1867cc It worked out very well for me. jetting.zip Quote Link to comment Share on other sites More sharing options...
toecutter Posted June 3, 2007 Author Share Posted June 3, 2007 Thanks Dan, very useful. So what did you end uyp going with set up wise? Quote Link to comment Share on other sites More sharing options...
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