08-04-2022, 11:16 AM | #1 |
Drives: 19' ZL1 A10, w/pdr Join Date: Sep 2014
Location: S.W. ohio
Posts: 1,550
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Porting blowers
Read this interesting article talking about porting blowers. Whether you agree or not it makes an interesting read. I came away with a question or two for those whizzes on physics and math.
If a blower can move more air after porting does the volume in increase in cfm or is it fixed at 1.7L? With both pulleys changed does the increased velocity equate to more volume? My new fact I learned was the boost is actually left over air. So if after porting and no other changes the boost goes down. How did getting better flow with larger intake and headers out to 3" long pipes create my boost of >14.5 psi? I am but a lifelong student of auto mechanics and still need to learn. https://synergymotorsports.com/blogs...gers-and-boost
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BTR Stg II cam w/ 38% fuel lobe, ARH 2" headers into 3" w/cats, AWE Touring, Kong X port, Weapon X triple ht exchangers, NW 103, Rotofab big gulp, DSX lowside, TCM tune, BMR Lockout, Mustang dyno 720 rwhp, 634 rwtq on 93 pump.
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08-04-2022, 12:14 PM | #2 |
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
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After porting, your boost will go UP. The engine has not gained any efficiency, but the blower is moving more air, therefore boost goes up.
Now if you add headers, ported heads, a cam, etc them you’ve improved the efficiency of the engine and boost will go down. That’s not a bad thing, the engine is now moving more air, which means more power. Oh, and the rotor pack volume is 1.7L on the OEM blower. Porting improves the ability of the blower to fill the rotors, that’s all.
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.48@150
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08-04-2022, 12:51 PM | #3 | |
Drives: Chevrolet Camaro ZL1 Join Date: May 2022
Location: Concordia
Posts: 437
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Quote:
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737 HP/ 779 TQ |
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08-04-2022, 03:04 PM | #4 | |
Having FUN in the SUN...
Drives: 2022 M6 ZL1 1LE Join Date: Jan 2022
Location: San Diego CA
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Quote:
Great read... thanks for sharing...
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2022 M6 ZLE: Katech CNC Ported Blower + Ported Heads + 103mm TB + Oil Pump + C5R Chain + Valve Covers + Coil Relocation
TSP VVT and DoD Delete Covers + LME Chain Guide + DSX Billet Lid + ATI Damper + 9.17" Lower + 2.4" Upper + MM Wild CC Coated ARH + AWE Touring + Magnaflow Center X + E85 + MSD Coils + Banks iDash + JMS Booster + Synergy Fender Tank ALL the RED Rear End BMR Goodies + JRE Terminator Cam Package + Remote Tuning and Moral Support from TED @ JRE BMR Motor Mounts + DMS Front HX + FIC 30's + APEX SM.10's + 305/345 R888R's = 770rwhp 785rwtq @E50 13.5psi |
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08-04-2022, 03:25 PM | #5 |
Not only do you move more air you also generate less heat in the process that is if you keep the same pulley.
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08-04-2022, 05:59 PM | #6 |
Drives: 2019 Chevy Camaro ZL1 M6 Join Date: Jul 2019
Location: Sea level
Posts: 1,252
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Stock pulleys FTW.
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Kong Stage X Port, NW103, LPE HPFP, XDI +30 Injectors, ARH Headers, Flex Fuel, JMS Booster, AWE Touring, Elite E2-X CC. Stock heads, stock cam, stock pulleys: Tuned by KingLT1. 740whp Uncorrected on e50
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08-04-2022, 06:30 PM | #7 |
Drives: 2008 Pontiac G8 GT, Shelby GT500 Join Date: Mar 2011
Location: Long Island, New York
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That's my plan. I want to port the stock blower and snout and eliminate TM in the stock tune. That's about it.
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08-04-2022, 06:34 PM | #8 |
Drives: Chevrolet Camaro ZL1 Join Date: May 2022
Location: Concordia
Posts: 437
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The only way to eliminate TM is in the TCM isn't it?
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2017 Red Hot ZL1 A10 - Apex ARC-8's, 305/ 325 PS4's, DSX 9.06 12% Pulley, NGK HR7 Ruthenium spark plugs, Katech Oil Pump, LME tensioner, DOD delete, Cam, MPI lid, Soler ported 87mm (91mm effective) TB, Granatelli SS plug wires, Cordes LTR reservoir, DMS T-stat housing, Borla X pipe, AFe NPP exhaust, Black Widow Angry Housewife/ Venom 250 mufflers, BMR engine mounts, Banks iDash, Lithium Battery, Course Motorsports phone mount, AEM X- Series, HP Tuners, JMS, E85, 13.6 psi
737 HP/ 779 TQ |
08-05-2022, 04:49 AM | #9 |
Drives: 2008 Pontiac G8 GT, Shelby GT500 Join Date: Mar 2011
Location: Long Island, New York
Posts: 1,376
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