a series or a+ valves?standard metro actuator to 8psi?
Turbo Mini Forums

i have a austin 1300gt head. ported and polished it today, relapped the valves, refaced it, cleaned up the chambers, painted it red. im making an engine out of bits i already have for now. it will be turbocharged. low boost, 7-8psi. are the a series valves up to this?

also, can a standard metro turbo actuator be adjusted to 8 psi or do i have to look for one from another car. are there any that are a direct swap?

the head will be put on a non mg metro bottom end, with sw5 cam, possibly with a series rockers bushed to aprox 1.4. hopefully will make a decent 100 bhp

many thanks

I'd change the exhaust valves to A+, or uprated ones. The A ones are soft and rubbish really Inlets would survive OK.

Remember you'll need new retainers.

Hi,
You'll easily make 100 bananas with that
I'd adjust the actuator you've got, see how it goes. If you can't get it past six you can always fit a bleed valve under the bonnet to get that last couple of psi.
Cheers,
Gavin :)

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thanks for the help. are a+ valves a direct replacement for the a ones?

how about the rockers. the 1.4 a ones or standard a+ ones? cheers

You need to change the retainers and valve cotters.