07-25-2023, 01:50 PM | #15 |
Drives: 2020 Chevy Camaro ZL1 1LE Join Date: Nov 2017
Location: Earth
Posts: 108
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07-25-2023, 02:01 PM | #16 |
Petro-sexual
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Ah. If you take away air pressure in psi, from that, then you have your boost
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'20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs |
07-25-2023, 02:12 PM | #17 | |
Drives: 2020 Chevy Camaro ZL1 1LE Join Date: Nov 2017
Location: Earth
Posts: 108
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Quote:
Barometric Pressure : 13.9 PSI Manifold Absolute Pressure: 30.7 PSI Supercharge inlet vacuum: 0.7 PSI Supercharge inlet pressure: 13.1 PSI Boost/Vacuum : 16.3 PSI Intake Manifold Absolute Pressure: 30 PSI |
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07-25-2023, 03:20 PM | #18 |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,562
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The 2650 supercharged 6.2L V8 LT4 in the Corvette C7 Z06 makes 15# boost and that's basically what you have, so... I didn't know that.
So, back to your first question on pullies. Mine has a 9.18 lower which is popular, and 2.625, 2.75, and 3.00 upper pullies. You could try 3.00 or 3.25 upper, but I would and did ask KaTech or LPE or Vengeance or some reputable shop about pullies
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'20 ZL1 1LE A10,
OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next. Last edited by JSH; 07-25-2023 at 03:30 PM. |
07-25-2023, 03:54 PM | #19 | |
Drives: 2020 Chevy Camaro ZL1 1LE Join Date: Nov 2017
Location: Earth
Posts: 108
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Quote:
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07-25-2023, 04:46 PM | #20 | |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,562
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Quote:
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'20 ZL1 1LE A10,
OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next. |
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07-25-2023, 05:20 PM | #21 | |
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 4,758
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Quote:
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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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07-25-2023, 06:04 PM | #22 | |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Quote:
Subtract max MAP from baro and use the calc in windows for pressure and it will convert kpa to psi. In my case: 220 kpa MAP, 98 kpa baro 220-98 = 122kpa = 17.69 psi When my car was stock with just boltons and a 2650 with a 90mm pulley I was hitting 16 psi easily in cooler weather.
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928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
LME 377 LT4 Short Block | Magnuson 2650 80mm upper w/13% lower (9.06) | DSX Lid & Valve Covers | CSP Custom Cam w/32% fuel lobe | CID Heads | NW 103mm TB | Roto Fab Big Gulp | CSP 2" Headers w/Green GESI Gen 2 Cats | Borla 3" Full Cat Back w/ S-Type| Mighty Mouse Wild Catch Can| Custom Holley Low side Fuel system| TooHigh PSI Port Injection w/Holley Controller | Forced Inductions Interchiller w/2 gallon fender tank | TK Performance built 10L90 |
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07-25-2023, 06:12 PM | #23 | |
Drives: 2020 Chevy Camaro ZL1 1LE Join Date: Nov 2017
Location: Earth
Posts: 108
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Quote:
Fuel pressure requested : 73 psi Fuel pressure (sae): 73-77psi Fuel rail pressure: 3285 - fluctuate but always above 3k Injector pulse width bank 1: 4.2ms Injector pulse width bank 2 : 4.2ms Alcohol percent: 67% No knocks as you said. |
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07-25-2023, 07:00 PM | #24 | |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Quote:
With a good low side you can make over 1300whp on port injection. I’m At 1000 with the triple fore system on 70% E and still plenty of fuel left.
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928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
LME 377 LT4 Short Block | Magnuson 2650 80mm upper w/13% lower (9.06) | DSX Lid & Valve Covers | CSP Custom Cam w/32% fuel lobe | CID Heads | NW 103mm TB | Roto Fab Big Gulp | CSP 2" Headers w/Green GESI Gen 2 Cats | Borla 3" Full Cat Back w/ S-Type| Mighty Mouse Wild Catch Can| Custom Holley Low side Fuel system| TooHigh PSI Port Injection w/Holley Controller | Forced Inductions Interchiller w/2 gallon fender tank | TK Performance built 10L90 |
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07-25-2023, 07:08 PM | #25 |
Drives: 2020 Chevy Camaro ZL1 1LE Join Date: Nov 2017
Location: Earth
Posts: 108
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Currently just a DSX aux pump for the low side. If I plan to push into the 1kwhp I will do a bigger intank pump.
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07-25-2023, 07:12 PM | #26 | ||
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 4,758
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Quote:
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I’m with you on the Fore Triple my man! Tough to beat. We pretty much make identical power and the Fore Triple is rock solid. I need to add port…
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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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