Quote:
Originally Posted by Kingtal0n
Ill bet you never put a gauge on the inlet tube for a turbocharger. There is nothing happening there, and barely anything during wide open throttle.
All engines need a vacuum source for pcv. There no good reason not to have one. It keeps the oil cleaner, and improves engine efficiency by lowering blow-by during off boost situations.
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No, I didn't put a gauge on it because I can do basic math. The pressure there under boost is far lower than the pressure in the crankcase. If you're smart you also put the fitting at an angle so that the dynamic pressure helps create a lower total pressure in the crankcase evac.
Quote:
Originally Posted by EsChassisLove
Still needs it. You will still spend a lot of time in vacuum if you track it.
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You don't need vacuum in the crankcase when you're making 5 HP putting down the road or in the pits. It just dumps oil in the intake manifold and makes you knock on track due to the octane reduction. I'm telling you, SRs will be just fine running a decent sized line through a catch can and to the intake tube. Put it 60 degrees angled towards the compressor wheel - lots of suction.