Occasionally ive noticed that after giving my car (1990, 1.6L) a bit of a squirt the boost doesnt seem to be as responsive until driving normally for a bit again ( ie a few hundred metres or so at least) and then it works fine...
Im suspecting that it could be the position of oil drain line from the turbo back into the sump... and also that it may be because it is too low in the sump. Is this possible?
If the oil is still being pumped into the housing by the engine and the oil drain line is backed up(ie not draining quick enough) the oil has nowhere to go and i suspect it could slow the turbo and effect its spooling rate???
the oil is supposed to drain out under gravity isnt it? and hence should have a free flowing unrestricted exit point.
I was just wondering if what i just wrote is at all possible and where and how other people with turbos on their NAs have successfully placed the oil drain point.. ive read and seen all the AVO and flying miata manuals which i used as a reference where i put mine.. just under the airconditioner compressor bracket. any other options?? i'd considered the dipstick but am concerned with the flow rate.
Preferably places that dont require the sump to come off...
another big job!
