I've aquired a pair of DHLA 40's which I have slung on the side of my engine. I know that many people will say I should have put 45s on, but these were really cheap and my engine is fairly standard except for a head skim and cam.
It seems to start and drive fairly well already, but I can't imagine I have been that lucky!
Reading up online with regards to the jetting gives some seemingly varied suggestions so I was wondering if someone might be able to suggest what changes, if any, I should make to the existing jetting. There seems to be loads of info for Weber, but just the same piece re-posted everywhere for Dellorto.
Here is what I have at the moment:
- 2 litre pinto, Newman PH3 camshaft and 1.5mm (I think) head skim. Standard mechanical pump, No regulator ( I know from my previous post that ideally I need one, but I wanted to hear them first :-) )
- The carb bodies just say DHLA40, no suffix letter. They are currently fitted with the following:
36mm chokes
140 Main jet
160 Air correctors
7772.5 Emulsion tubes
52 Idle jets
7850.1 Idle jet holders
33 Accelerator pump jets
7848.1 Auxiliary vents
I know a rolling road tune is the ideal answer, but I'd like to get them close-ish and see if I want to keep them before spending too much.
Thank you in advance
Richard
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