Thanks Hamish. I'm a little puzzled as all the information I have read including Garett's web site says the turbo oil return should be above the oil line and as high as possible in the sump. I do agree with yuor logic and explanation; the opposite logic seems to be that the return is unimpeded and no wash up the return. Although I would have thought it made little difference since p = h x density etc. Having done some more research since my first post, my favoured route is to make a plate to cover the breather hole and weld two oil unions to it. One higher for the crankase breather and the second lower for the turbo oil return, will also angle then in oppostie driections. Will then take the higher one to an oil ctach tank. As the breather hole is about 45mm diameter (haven't measured it exactly) I can't imagine there being a problem, but would appreciate any input please. Nigel
-- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to quantumowners@googlegroups.com To unsubscribe from this group, send email to quantumowners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s).