10-04-2022, 10:15 PM | #1 |
Black lightning
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What's your E content
Curious what others are running with regular Rotofab, catless longtube headers, and presently at E29.. Will I be safe going up to E50 or jus keep it around saying E 35-40 for now atleast.
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[ 2021 Camaro ZLE 10 speed
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10-04-2022, 11:07 PM | #2 |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Let your tuner determine that. But with a low side like a JMS you can run 50-55%
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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 |
10-05-2022, 09:20 AM | #3 |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,623
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I can run 60-65% with an LT4 low side (same as yours) plus a JMS voltage booster. This is an LT1 with forged internals, so not the same engine, but the fuel system is the same LT4 you have.
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2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
10-05-2022, 10:21 AM | #4 | |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,800
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Quote:
Most stock internal LT4's with stock fuel system can run about E65-E70 @ .84 lambda. With headers, ported supercharger or pulley (whatever gets to 12-13psi), and 4" cai, E50 is about the limit @ .84. Some tuners lean them out to .85-.86 and that will allow more E. Some tuners run .81-.82 and that will limit the amount of E even further. Either way all cars are different. need to log both high and low fuel pressures along with injector pulsewidth. Anything above 6.0ms is out of fuel and going to start losing power. I run E60 @ .83 with XDI +30, LPE HPFP, and JMS low side with LT4 pump. Stock internal LT1 with about 10 psi of boost. Same fuel system on a ZL1 can run E60 @ 14psi. LT1 @ 10 psi makes similar power to a LT4 @ 13-14psi due to compression and cam difference.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
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10-05-2022, 12:10 PM | #5 | |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,623
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Quote:
At E60 and .83 lambda, my boost is around 10-10.5 psi, injector pw is 5.5-5.6 ms, so there is some reserve, which I like, being nearly a thousand miles from Ted's shop in case I blow the whole thing up, and of course I can't fix it
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2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
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10-05-2022, 12:23 PM | #6 |
Drives: 2018 Audi TT RS Join Date: Jan 2014
Location: Navarre, Florida
Posts: 1,915
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Yeah, I'd be real careful about your E content and ensure you have open dialog with your tuner on what they see through your datalogs. I'd say do what they think is best and even err on the side of caution and roll a little lower than that.
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2018 Audi TT ▊RS
2.4X 0-60, 1.6X 60', 120+mph 1/8th, 4.XX 60-130, 150+mph traps on 255/35/18 R888R tires on the street (unprepped). 2019 Audi RS3 About as fast as the TT RS 2019 Camaro ZL1 1LE Sold 2018 Camaro SS 1LE Sold 2019 Corvette Z06 Sold 2021 Charger Hellcat Redeye Widebody Sold |
10-05-2022, 12:40 PM | #7 |
Drives: 2017 Camaro SS 1LE (F1A-94 FBO H/C) Join Date: Jun 2017
Location: San Antonio Texas
Posts: 843
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not running a JMS but i'm at %50 e, %50 93 and meth
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Performance Mods: F1A-94, DSX Flex Fuel Kit, MSD Spark Plug Wires, KOOK 2" off road headers, MBRP Race catback exhaust, Pray Performance Custom Boost Cam, Rocker Arm Trunion Upgrade Kit, 7.850" Hardened Chromemoly Length Pushrods and Johnson Racing 2110R Lifters, TSP CNC'd Heads, Ported MSD intake manifold, 103mm Katech Throttle body, Forged Pistons/Rods, RPM Meth kit, DSX Aux Fuel system, AEM Failsafe and banks gauge, LT4 HPFP, LT4 injectors, BMR motor mounts, Hurst Short Throw, Manley SS exhaust valves
Videos of my car? Check here: https://www.youtube.com/channel/UCNi...Qy1OL4NVGlPogw |
10-05-2022, 01:05 PM | #8 | |
Black lightning
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Quote:
I'm only having second thoughts because a zl1 bogged out at the track and was on E41.I no it was probably his tune but it made me think. #paranoid lol I really appreciate yaws input
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[ 2021 Camaro ZLE 10 speed
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10-05-2022, 03:43 PM | #9 | |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,800
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Quote:
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
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10-05-2022, 03:51 PM | #10 | |
Drives: Chevrolet Camaro ZL1 Join Date: May 2022
Location: Concordia
Posts: 437
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Quote:
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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 |
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10-05-2022, 04:33 PM | #11 | |
Having FUN in the SUN...
Drives: 2022 M6 ZL1 1LE Join Date: Jan 2022
Location: San Diego CA
Posts: 1,052
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Quote:
Same here... with a JMS I am approved for E50 when hot and E40 when cold. We tried E60 and that was too much.
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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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10-05-2022, 04:56 PM | #12 |
Drives: 2017 Chevrolet Camaro ZL1 M6 Join Date: Jul 2020
Location: OR
Posts: 479
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e40 @ .83. Some smart people think .83 is more than just a tad rich. Thinking about .84 -.85 to see what she'll tolerate.
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JRE Terminator Rough Idle Cam
Magnuson 2650 - 15% lower, 90mm upper FIC+30% DSX Flex fuel/Low side NW 103mm TB/Roto-Fab CAI Monster S Series Elite E2-X 2" TSP LT's BMR:BK063, BK060,TCA061, UTCA060, UTCA063 Weld Beadlocks/17" NT5R2 |
10-05-2022, 05:29 PM | #13 | |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Quote:
You can run them leaner with ethanol. Ethanol has the ability to pull hot air out of the cylinder so you dont need as much fuel. Anywhere from 82-85 i think is acceptable. In this range makes the most power.
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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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10-05-2022, 05:47 PM | #14 |
Drives: 2022 Lt1 A10 Join Date: Nov 2015
Location: clark, mo
Posts: 8,860
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I'm running E65 to 70 and that's what comes out our pumps here in Mid Missouri so I don't have to do any mixing. Running 23 degrees including the flex fuel advance, Afr is right at 12.5 on 10.2 or so boost. I also have toohighpsi port injection and running a JMS booster for extra voltage. No issues with injector pulse or low side fueling on stock Lt1 High side and Lt1 injectors and stock in tank pump which appears to be Lt4 pump. Maybe.
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2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff
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