Does LT1 need fueling help with E85?

MatthewAMEL · 10-21-2021, 09:47 AM

Anyone hear of the LT1 needing some kind of supplemental fueling to run E85?

On a stock motor. I'm being told to run a fuel pump voltage booster. When I mentioned I hadn't heard of this being an issue, I was told every LT1 needs it when they start running E85.

MP3BOOSTED · 10-21-2021, 10:20 AM

i'm pushing almost 1000 wheel and don't have one, when NA H/C i was running full e85 without one.. just depends on who tunes / works on your car.

then again with my boosted setup now is 50/50 e85 and 93 as well as meth

s346k · 10-21-2021, 11:01 AM

i typically see an ethanol content between 75-80 and i have no issues. bolt on car.

laynlo15 · 10-21-2021, 02:09 PM

I'm on E85 with my C7 and have long tubes/offroad pipes, Mamo ported Msd, Lt5 TB and I have no issues with the low side and thats what you need to look at when going to E plus the injector pulse width. I run anywhere between E65 and E85 depending on the fuel I find.

Spaceme1117 · 10-21-2021, 02:33 PM

Quote:

Originally Posted by MatthewAMEL

Anyone hear of the LT1 needing some kind of supplemental fueling to run E85?

On a stock motor. I'm being told to run a fuel pump voltage booster. When I mentioned I hadn't heard of this being an issue, I was told every LT1 needs it when they start running E85.

Nope. I added an E85 sensor kit to my 2017 no problem.

KingLT1 · 10-21-2021, 09:07 PM

You don't need to touch the fuel system on E85 when NA until you get around 600whp. Upgrading to the LT4 fuel system high/low will get to about 730-750whp on full pump E.

This is based on Naturally Aspirated combos not Forced Induction.

MatthewAMEL · 10-21-2021, 09:28 PM

Thanks for the replies, folks.

I am already tuned for E85, but was looking at switching to another tuner who is very active on this board. He is the one that said all E85 builds need a voltage booster. Caught me off guard.

cjperformance · 10-22-2021, 06:23 AM

Quote:

Originally Posted by MatthewAMEL

Thanks for the replies, folks.

I am already tuned for E85, but was looking at switching to another tuner who is very active on this board. He is the one that said all E85 builds need a voltage booster. Caught me off guard.

Cant say for sure, but its prob being recommended for safety, not necessity.

wnta1ss · 10-22-2021, 06:48 AM

Agree with those other guys, using just bolt-ons NA, the stock Camaro SS Coupe fuel system can handle full E85, many people have done so. Plus, your 1LE model already has the ZL1 low side pump (stronger) from the factory, so I seriously doubt that you need a voltage booster on your low side. What is your fuel pressure doing in the logs now?

BlackbeastSS2 · 10-22-2021, 08:30 AM

Quote:

Originally Posted by wnta1ss

Agree with those other guys, using just bolt-ons NA, the stock Camaro SS Coupe fuel system can handle full E85, many people have done so. Plus, your 1LE model already has the ZL1 low side pump (stronger) from the factory, so I seriously doubt that you need a voltage booster on your low side. What is your fuel pressure doing in the logs now?

So glad I came across this thread, now with my 1LE I don't have to order the Weapon X's low side fuel kit. Didn't know it came with the low side ZL1 fuel pump. That saves me a lot, now just injectors and high side pump. G-force Halfshafts & Driveshaft. Then the big purchase, Pro-charger. April-May hopefully looks good for completion.

SnowWhiteSS · 10-23-2021, 06:29 PM

GPI remote tuned my camaro for E. Couldn’t have been easier. Responded in less than 24 hrs with each update file. Deff look into them if your looking for a new tuner.

10-21-2021, 09:47 AM	#1
MatthewAMEL Drives: 2023 CT5 Blackwing Join Date: Sep 2016 Location: Orlando Posts: 1,618	Does LT1 need fueling help with E85? Anyone hear of the LT1 needing some kind of supplemental fueling to run E85? On a stock motor. I'm being told to run a fuel pump voltage booster. When I mentioned I hadn't heard of this being an issue, I was told every LT1 needs it when they start running E85. __________________ 2017 HBM SS 1LE Sold 2023 Wave Metallic CT5-V Blackwing M6

10-21-2021, 10:20 AM	#2
MP3BOOSTED Drives: 2017 Camaro SS 1LE (F1A-94 FBO H/C) Join Date: Jun 2017 Location: San Antonio Texas Posts: 843	i'm pushing almost 1000 wheel and don't have one, when NA H/C i was running full e85 without one.. just depends on who tunes / works on your car. then again with my boosted setup now is 50/50 e85 and 93 as well as meth __________________ 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

10-21-2021, 11:01 AM	#3
s346k Drives: like an old lady Join Date: Jun 2012 Location: indiana Posts: 2,396	i typically see an ethanol content between 75-80 and i have no issues. bolt on car. __________________ 2016+ camaro: everyone’s first car

10-21-2021, 02:09 PM	#4
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	I'm on E85 with my C7 and have long tubes/offroad pipes, Mamo ported Msd, Lt5 TB and I have no issues with the low side and thats what you need to look at when going to E plus the injector pulse width. I run anywhere between E65 and E85 depending on the fuel I find. __________________ 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

10-21-2021, 09:07 PM	#6
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,799	You don't need to touch the fuel system on E85 when NA until you get around 600whp. Upgrading to the LT4 fuel system high/low will get to about 730-750whp on full pump E. This is based on Naturally Aspirated combos not Forced Induction. __________________ 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

10-21-2021, 09:28 PM	#7
MatthewAMEL Drives: 2023 CT5 Blackwing Join Date: Sep 2016 Location: Orlando Posts: 1,618	Thanks for the replies, folks. I am already tuned for E85, but was looking at switching to another tuner who is very active on this board. He is the one that said all E85 builds need a voltage booster. Caught me off guard. __________________ 2017 HBM SS 1LE Sold 2023 Wave Metallic CT5-V Blackwing M6

10-22-2021, 06:48 AM	#9
wnta1ss Drives: 2017 Camaro 1SS Join Date: Aug 2016 Location: NH Posts: 1,692	Agree with those other guys, using just bolt-ons NA, the stock Camaro SS Coupe fuel system can handle full E85, many people have done so. Plus, your 1LE model already has the ZL1 low side pump (stronger) from the factory, so I seriously doubt that you need a voltage booster on your low side. What is your fuel pressure doing in the logs now?

10-23-2021, 06:29 PM	#11
SnowWhiteSS Drives: 2017 Camaro SS Join Date: Jun 2021 Location: Waldorf, MD Posts: 36	GPI remote tuned my camaro for E. Couldn’t have been easier. Responded in less than 24 hrs with each update file. Deff look into them if your looking for a new tuner.

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