I'm building a N/A, 1360, A+ series, BMW K100, 8 valve donk and I'm trying to decide what comp ratio I should be going for and what pistons I should buy Any ideas or suggestions will be appreciated.
Currently I'm planing on wedging the crank and re-using the standard rods. I'm also looking at getting a steel lightweight f-wheel which I might end up getting from the UK if I can't find anything locally that will be as good and as cheap.

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Respect mine and I'll respect yours.

11:1 comp ratio will be fine on these things in N/A form

& Hypertechs or our own design JP piston will get you there quite handsomely
but the hypertechs are far cheaper than the JPs
so hypertechss are probly the go

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

Hey Miniman do the JP's already have the valve cut outs ?

is there any benifit over the hypatecs ?

Beanie

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I am the son of the STIG

HOTBRICKS
http://hotbricks.org.au/

'65 NCF MINI.....
'69 MINIMATIC.... 9 year resto still on the go

no, the JP`s come with just a dish,,, you`d need to fly-cut them to suit your application,,, 8V or 16V dependant

& they have a thicker crown, top ring is slightly lower on the piston than the hypertechs, so if you were chasing lower compression (Eg: turbo or supercharging) then there is Plenty of meat to rip off the top , still leaving a very strong crown

thin rings too so they flex rather than just break

_________________
No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.