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MG Midget and Sprite Technical - Modifieing a 12g295 cylinder head for race

I'm racing an FIA 1098 1962 midget, and I do not have the power I want.

Does anyone know a good place to have your head modified to fit a race engine?


Ole Aaen

MED, Avonbar, Peter May or Slark to name a few all have good reputations.
B Richards

Keith Calver is 'the' man for the '295 heads I believe: http://www.calverst.com/
Nick

Hi Ole

The 295 has throats too wide to get good flow. Are you allowed the 206 casting which ( Vizard is wrong in his book before you all respond) has smaller inlet valves that the 295. The chambers are the same shape as 295. If the head is modified to accept 295 inlets the flow is really good.
If you are allowed larger valves the usual route is to use 1275 standard inlet valves and exhaust valve (not the 1.402" MG Metro Cooper S size) The valves are approz 3 mm longer so you would need to space the rockershaft.



Peter
peter burgess

This thread was discussed on 28/07/2008

MG Midget and Sprite Technical index

This thread is from the archive. The Live MG Midget and Sprite Technical BBS is active now.