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2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Smog pump conversion for PCV evacuation
Im considering using a smog pump hooked up to my valve cover to use a a PCV pump. I dont need to draw a vacuum like a racing engine uses for negative pressure, just evacuate the gases. Has anyone done this. I found referneces in other forum,s, just seeing if anyone has done it here. Probably going to post a WTB as well.
Im considering using a smog pump hooked up to my valve cover to use a a PCV pump. I dont need to draw a vacuum like a racing engine uses for negative pressure, just evacuate the gases. Has anyone done this. I found referneces in other forum,s, just seeing if anyone has done it here. Probably going to post a WTB as well.
Why not connect PCV to intake and use an oil catch can if that's your concern?
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Ahhh, hello. Its me. THIS intake.
Its individual runner. All the stainless lines that go to the red and blue manifolds are vacuum lines connected to each cylinders runner to concentrate the combined vacuum. Its only 10 inHg at my gauge because I believe the PCV might be too big of a leak. Im hoping to remove the PCV system from them and use the pump thus creating more vacuum for my advance and headlights. Ive got 580 hp so i can spare a few for a pump.
I see you have an alternator. Where would a smog pump go?
It would go where it was from the factory .
The gases would go to a catch can with a filter on top. Plenty of the crankcase vent setups out there for racing. They are about $1500 to start and are only good for a seasons worth of racing, so maybe 100 miles
Apparantly Thunder Racing is closed. If they had an electric vacuum pump for sustained use I would have gone that route. Electric is better, no one eles has one
Last edited by Rescue Rogers; Sep 12, 2025 at 05:31 AM.
It would go where it was from the factory .
The gases would go to a catch can with a filter on top. Plenty of the crankcase vent setups out there for racing. They are about $1500 to start and are only good for a seasons worth of racing, so maybe 100 miles
Apparantly Thunder Racing is closed. If they had an electric vacuum pump for sustained use I would have gone that route. Electric is better, no one eles has one
Here's one at Speedway (with a catch can, though you might want to spec your own).
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
It would have to be rated for a constant duty cycle and oil proof since its drawing possible engine combustion gases and oil vapors. What ever may squeak by the rings and any oil mist whipped up from the crank spinning 6000+ rpm
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Thanks........theres all sorts of expensive routes, Im hoping this works, it only needs to draw enough to get the vapors, Im not trying to seal the seals with high vacuum. ANd those pumps are rated for one season of use
Smog pump conversion for PCV evacuation
