I agree, EGT and HeadStuds would be way overkill on NoN-Turbo 12mm engine. An 11mm engine - i'd want the headstuds.
I'd do the triple gauge set - but you need another oil press sending unit for the gauge to work (or the one from that car).
I would put it on the butt end of the head - where lowest pressure reading would occur. Might need a T - if keeping stock cluster warnings intact - and use both senders.
Oil temp - idunno how or where they set up for that sender.
I would guess to put it on the oil filter housing where the high press oil sender is. Maybe T it in with existing sender also ?
Just throwing it all out there in case it helps.
You could also use the oil temp gauge as a water temp gauge.
It won't know the difference.
12mm on CR code 82 engine is a roll of the dice.
Like you mention, check headbolt pattern. But its not definitive due to alternatives that could have taken place in past. 12 point - triplesquare is what you'll hope for.
Also check crank bolt, whether 17mm fits - or 19mm fits.
If it's 19mm - its almost definitely 12mm.
If it's 17mm - its still possible a 12mm.
(Cranks will interchange - and it happens)
Also check on backside (firewall side) of block.
If it says 16D - more than likely 11mm
If it says 1.6D - more than likely 12mm
As you can see, its not 100% known until a headbolt comes out and is measured on these CR's. They were a running change during production.
I have an 82 CR 12mm engine.
Tripsquare headbolts / 19mm crankbolt / 1.6D on backside
It was cast in Brazil (?).
Giles musta went up 100 in the past year or so.
It was bound to happen sooner or later.
And exchange rate is almost even money right now too.
Or it was last week, anyhow.
