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Old 01-22-2022, 03:21 PM   #2
GTO_Gregory's Avatar
Drives: 2016 Camaro
Join Date: Oct 2017
Location: Texas & Uncle Sam's Choice
Posts: 103
I think the better catch cans use metal baffles, or a steel mesh for long life.
I doubt the catch cans reduce any crank case pressure as you are not creating additional vacuum.
I ran a GZMotorsports Sportsman Vacuum pump on my LS2-402 and there is a noticeable difference. With a vacuum in the crank case the engine revved must faster and easier. The system has its own vented catch can and twenty laps at Texas World Speedway with 0W-30 oil filled up the catch can.
2015 Chevrolet 2500HD Z71, LTZ, 4x4, 6.6 ltr. LML long-bed, Fass Titanium, Edge Tuner, K&N Air Filter & Air Bags.
2016 Camaro 2SS Six-speed, Hotchkis sway bars, Eibach .750" drop springs, Mamo throttle body, E85, BMR stuff.
2006 Quicksilver 6-speed GTO ERL LS3-430, All-Pro 285cc heads, 262/273 .758/.742 116+3 cam, Sheet-metal Intake, 70lb Siemens injectors, SLP, GMM Ripshifter, QA1 Coil-overs front and rear, nylon suspension bushings, Hotchkis, RPM Trans, SPEC twin clutch, SpinTech, Kooks 1 7/8 -2.0", BMR drive train, Kaaz 3.91, Lingenfelter CAI, Baer brakes, mini-tubs, E85.
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