Manifold required

[bob_9447]

I have just purchased a 13/60, which has had quite a lot of mods.

Among those are twin H4 SU Carbs.

I consider these to be much too big for the engine and would like to get a/some carburettors more suited to the size of the engine.

I see my options as (a) twin 1.25 HS2s, (b) a single H4, or (c) put on my Reece Fish carburettor.

a) would seem to be fairly easy to source from a Spitfire. Does it matter what year/model. Any one any idea about needles. Apart from 0.030" off the head, I believe the rest of the engine to be standard.

b) where would I get a manifold from to do this?

c) this might be my preferred option, the Fish is a fantastic carburettor, but would require a manifold that would take a single 1.25" HS2 (Fish has same flange dimensions).

I should probably mention that the Exhaust manifold is a 4 into 2 into 1 tubular type.

 

 

Edited May 2 by bob_9447
spelling mistake

[Colin Lindsay]

The Reece Fish is a superb carb; (is it a Minnow?) I love the way the float chamber can be rotated to suit any angle. Can you adapt the 13/60 manifold to take it, or can a single-carb Dolomite manifold be adapted? 

 

[bob_9447]

No it's a Reece Fish, the Minnow is a different version of the Fish.

A great carb, but because it was so efficient at Vaporising the fuel it had a tendency to freeze if it was a cold damp day.

One solution was to use Cleveland Discol fuel which had Alcohol in it, thereby stopping the freezing.

The solution I came up with when using a carb input trumpet was to wrap resistance wire round the outside of the trumpet and wire to the battery via a switch.

It was only necessary to use it whilst the engine warmed up. Once warmed up the was enough heat to stop the fuel freezing.

The other alternative as just to stop and wait for a while until a little bit of heat percolated through to the carb.