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| Joined: | 12-11-2012 |
| Location: | Stone. Staffordshire, United Kingdom |
| Posts: | 80 |
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I was advised to do this by a reptutable engine builder in the UK. Apparently the original design allows to much oil into the head and starves to bottom end of oil pressure.
The other mod advised is to drill a very small hole in the oil pump housing to enable the pump to prime much quicker reduce the delay in oil pressure on start up.
I've just done this to an early engine rebuilt around a later lotus block. Not got to run it as yet though.