my previous engine which originally came with the grey micra used with the janspeed system used no oil at all even after couple trackdays.
this forged engine only smokes abit from cold starts though most prob just condensation from cold exhaust and then once all warmed up there's not a hint of smoke at all, only rich black smoke when reving it WOT.
this morning i made a quick catch can with drinks bottle and SS scouring pads
i set off down motorway 60mph at 2.8k rpm keeping boost below 0psi for 25miles. checked catch can and oil levels, nothing in catch can but still consuming oil. topped up oil n returned back home using full boost 3-4k rpm at times but mostly it cruises at -10psi and still nothing captured.
not a sign of any oil leak anywhere. when i last took the downpipe off the insides are just dry n sooty with no wet oil. inside the turbo inlet housing looks clean n dry so turbo's not leaking. peeked through the TB and the bottom of the inlet manifold is a normal light smear of oil with no pools. i'm really baffled
ed and local garages are closed but will try leakdown test asap.
solarice what if i block off the pcv to inlet mani pipe and connect the engine cover breather to a catch can then into the IC piping?
i fine tuned the injector multiplier and now the mixtures are bang on.
i dont have an oil pressure gauge