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is there an alternative carb for a mm 918 side valve
Posted: Wed Sep 21, 2016 2:35 pm
by minor918
Please does anyone know of an alternative carburettor to fit a 1952 mm side valve ?
Re: is there an alternative carb for a mm 918 side valve
Posted: Wed Sep 21, 2016 7:25 pm
by JOWETTJAVELIN
What's the issue? I don't think it'll take anything other than a standard fit H2.
Re: is there an alternative carb for a mm 918 side valve
Posted: Wed Sep 21, 2016 10:49 pm
by mike.perry
Th standard carb for a Series MM is SU H1 1 1/8in horizontal as opposed to an H1 semi downdraft as fitted to the Series II. You would need to modify the inlet manifold to fit an H2 1 1/4 carb
Re: is there an alternative carb for a mm 918 side valve
Posted: Thu Sep 22, 2016 7:48 am
by RobThomas
You can Dremel out the inlet and TIG weld a larger flange on (I've done this) but the exhaust is so restrictive that there isn't much benefit. After that you are looking at fabricating a complete new manifold to get a larger carb on. Reece Fish carb would be a good option.
Re: is there an alternative carb for a mm 918 side valve
Posted: Sat Sep 24, 2016 10:06 pm
by bmcecosse
Just stick with the H1. why would you want anything else ? It won't increase vthe power - the limitations are elsewhere in the engine ....