twin su carbs on my morris?!?!?

[puchmaxikid]

hi, does anyone no if a pair of twin su carbs from a mini, with an A series engine would fit my morris minor 948?
manythanks.

[callyspoy]

hello! i think the general idea would be yes, they definitely will fit, but i believe they would over fuel a 948...that said, when they work well, you would notice the difference! then they would go out of tune, and not work so well, then you will buy a big single SU like everyone should! speaking from experience here! still persisting with the dellorto though!

[Packedup]

Nothing wrong with twins on a 948, or at least no more wrong than twins on any A series IMO

You'd be better off with a single HIF38, or HS4 (HIF is better, HS is easier to source) though. If you want to retain the Minor exhaust then the easy way is a Mini inlet/ exhaust manifold (complete with power sapping hot spot though), otherwise there's plenty of aftermarket alloy inlets but then you need to either chop the exhaust manifold off a combined one or look at an LCB and aftermarket system (far better flowing, but also far more expensive).

[bmcecosse]

The main advantage of the twin SUs when fitted by BMC on the 948 Sprite - was the elimination of that exhaust hot spot - but of course to be a Sports Car it HAD to have twin carbs in these days! . You can get virtually the same power increase just by fitting a good alloy inlet manifold with even the original single SU. But as already said by others - going up to a larger 1.5" SU would be better. However - the 948 engine's main problem is the miserable camshaft lift and timing, and the poor flowing cylinder head which has small inlet valves. If you really want it to GO - then these should be changed along with some improved carburation.