Scavenge pump?

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Scavenge pump?

Postby iOnic » Fri Mar 11, 2011 8:19 pm

Just wondering if anyone runs a scavenge pump on their turbo oil return. Need info on where to get one/pricing etc and anything else I need to know to run one.
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Postby DexGT » Sat Mar 12, 2011 12:06 am

I looked in to this a while back and I kept the site links , these will help I hope
http://www.rbracing-rsr.com/oilsystems.htm

Mmmmm it has been a while , the other links are broken.
Try doing a search on rear turboing as they need a pump to get the oil back to the front / motor :lol:
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Postby iOnic » Sat Mar 12, 2011 12:39 pm

Think I've gotten on top of it. I've put a restrictor in the turbo oil feed, changed the oil return as much as possible and redid the crank case venting so that vacuum helps suck the oil out of the turbo. Seems to be working alright for now so we'll see. Turbo is slightly on the big side so the oil return fittings on the turbo and sump are almost inline so can't really get a good downhill incline between them.
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2016 CFMoto 650NKs
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Postby nz_climber » Sat Mar 12, 2011 1:11 pm

Just a small point, you won't get vacuum in the crankcase unless you have a dry sump system with scavenge pumps sucking all the oil out creating a vacuum (one of the advantages of having a dry sump)
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Postby iOnic » Sat Mar 12, 2011 2:01 pm

Yeah sorry should have worded it better. The way it was, the sump was under pressure so the turbo wasn't draining very well/at all.
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