Air/Oil Separator

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Jul 18, 2019 | 02:30 PM

flowrider

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From: Arizona

Air/Oil Separator

I had this on my ISF:

https://www.rr-racing.com/Lexus-Air-...isxaos0002.htm

Has anyone succeeded in either mounting this on their LC500 or doing something similar? Since the LC has dual intakes and the RRRacing unit mounts on the drivers side, I see no way to make it work. I would like to prevent that blowby from getting into the engine.

Lou

Jul 23, 2019 | 04:35 PM

timrudy

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From: Ohio

Soot in the pic and carbon valve deposits really shouldn't be an issue on the LC or RC since they have both direct and port injection. The port injection seems to wash the intake valves adequately. For me, its cheaper to change the oil every 5K to make sure any blow-by contaminates are evacuated and its cheaper and less bothersome than an oil catch can.

Jul 23, 2019 | 04:38 PM

flowrider

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From: Arizona

^^^^Not a big issue, but an issue nonetheless. My iSF had the same engine, and collected some oil in the catch can.

Lou

Jul 23, 2019 | 09:55 PM

timrudy

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Quote:

Originally Posted by flowrider

^^^^Not a big issue, but an issue nonetheless. My iSF had the same engine, and collected some oil in the catch can.

Lou

Yeah there are some driving modes where our motor is direct injection only. Im not sure which ones. I'll take a borescope and look inside to see how much carbon valve deposits there are with my driving style. But I don't expect it to be nearly as bad as those high hp per liter smaller engines that do direct injection only.

Jul 23, 2019 | 10:20 PM

flowrider

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^^^^It's not a carbon issue, it's blowby. I'd rather have the oil in a canister than going into the combustion chamber.

Lou

Nov 21, 2019 | 12:53 PM

ForzaF

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From: London,ONT

Correct it’s blow by if you take off your intake and look inside the throttle body it will show some oil deposits inside. Every once in a while it’s good to clean out the throttle body.

Lou, can’t you run a T connector and add another hose to the Rr AoS,