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#15 | |
![]() ![]() ![]() ![]() ![]() Drives: 2010 Camaro Join Date: Nov 2009
Location: Denver
Posts: 1,383
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That's the point. NO form of Professional racing or OEM performance does this any longer unless the class of competition rules specifically prohibit it (Stock and SuperStock classes in NHRA & IHRA and oil changes are required after each race because of it). That has NOT been done in decades as it has so many negatives associated with it. That leaves most ALL contaminants in the crankcase to accumulate, and you ALWAYS want suction pulled so pressure can never build to begin with. This is a common mistake made by tuner shops as it has not been taught in decades. This is bad to do no matter what.
Watch this video. And this is a NA small block Chevy. First dyno pull is "venting" as your tuner claims is best, and the second pull is with suction pulled on the crankcase: So, here are the issues that occur if you "breathe" instead of pulling vacuum/suction: Breathers most all contaminants that cause the wear and damage to engines remains in the crankcase accumulating and adding to wear. Evacuating removes this. Breathers allow pressure to build to the point it seeks to equalize with outside air so some pressure is always present. It requires pressure to equalize. This results in piston ring flutter as this white paper explains. Today's low tension piston rings require suction below and pressure above to retain stability and proper seal. When pressure is allowed in the crankcase : https://www.highpowermedia.com/Archi...n-ring-flutter Providing the crankcase with full time suction prevents this pressure differential that causes most flutter issues. Allowing pressure below the ring compounds the issue. We are one of the ONLY systems aside from a belt driven vacuum pump that accomplishes this. Less blow-by and more power as the video had shown. More blow-by means more combustion byproducts entering and more wear over time. The biggest misunderstanding is from people over simplifying a critical part of today's engines by just making basic assumptions. Most don't consider anything but the most obvious, and that is blow-by creates pressure in the crankcase, so they simply add tanks and breathers and don't think any deeper about how that negatively affects all aspects of the engine from power, oil consumption, to long term wear and damage. The best solution by far is an actual vacuum pump system like in the video above, but they wear rapidly when used on the street so not practical. Our dual valve systems emulate this by providing two separate evacuation suction sources. Intake manifold vacuum for suction at idle and deceleration, and vacuum generated by the Venturi Effect for in boost suction. The special checkvalves we developed automatically open and close to always default to the strongest suction available no matter the mode of operation. So when a PCV system is deleted and defeated, your engines life and performance suffer. |
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#16 | |
![]() ![]() ![]() Drives: 2019 ZL1 Riverside Join Date: Apr 2020
Location: Charlotte, NC
Posts: 1,139
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#17 | |
![]() Drives: CTV5 V Blackwing on order Join Date: Feb 2020
Location: East TN
Posts: 431
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Quote:
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2022 CT5 V Blackwing with A10
2021 GMC Denali pickup with 6.2 and A10 2017 Ford Expedition |
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#18 | |
![]() ![]() ![]() Drives: 2019 ZL1 Riverside Join Date: Apr 2020
Location: Charlotte, NC
Posts: 1,139
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Re-read the post
Quote:
Fuel dilution is a major problem with boosted engines. Another reason catch cans are a "must do" mod |
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#19 | |
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Oh Oh it's Friday Night!
Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018
Location: Walton Woods
Posts: 1,075
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Quote:
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2018 Camaro ZL1 1LE NFG; ARH 2” headers, catless mids, ARH full exhaust, Lingenfelter 18% lower pulley, ATI Harmonic Balancer, Roto-fab CAI, EE-catch can, TM ported TB, NX Lid, BMR strut tower brace. Aeroforce dual pod interceptor gauges. Tuned by Vengeance Racing!!! 644 HP @ 6250 rpm / 689 trq @ 3660 rpm
Four that wanna own me Two that wanna stone me One says she's a friend of mine... |
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#20 |
![]() ![]() ![]() ![]() Drives: 19 Z06 Join Date: Nov 2011
Location: Oakville Ont.
Posts: 1,427
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Just got my E2-X and can't wait to install it. I must say its very good quality.
__________________
Gone but not forgotten:
1974 Corvette Stingray 454 1986 Z28 2009 Mustang GT convertible 2012 45th 2SS Vert 2013 ZL1 M6 2014 Zl1 M6 2014 GT500 2016 Challenger Hellcat M6 www.youtube.com/c/garageking |
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#21 |
![]() ![]() ![]() ![]() ![]() Drives: 2010 Camaro Join Date: Nov 2009
Location: Denver
Posts: 1,383
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#22 |
![]() ![]() ![]() Drives: 2019 ZL1 Riverside Join Date: Apr 2020
Location: Charlotte, NC
Posts: 1,139
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One improvement I might recommend is updating the nozzle under the blower. Currently the barbed fitting needs to be ground off to fit, making the hose connection less secure. The MM design is better because you can thread the fitting in first (it's designed to get a wrench on it, and the outlet is at an angle) then you can thread in the barbed fitting
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#23 | |
![]() ![]() ![]() Drives: 2020 Zl1 A10 Riverside Blue Join Date: Mar 2020
Location: NJ
Posts: 1,238
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#24 |
![]() ![]() ![]() Drives: 2019 ZL1 Riverside Join Date: Apr 2020
Location: Charlotte, NC
Posts: 1,139
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That's the main difference, yes
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