E-90 with stock tune

VORTEX1 · 10-05-2022, 12:34 PM

What problems would someone expect to see if E-90 was added to a stock ZL1 that has not been set up for it ? Don't worry , I have not done that but it is becoming available close by and I am considering some horsepower upgrades . I appreciate any constructive comments . :wave

DaveC113 · 10-05-2022, 12:37 PM

I'd expect it to run lean and melt pistons.

SOCAL.M6.ZLE · 10-05-2022, 01:12 PM

Quote:

Originally Posted by VORTEX1

What problems would someone expect to see if E-90 was added to a stock ZL1 that has not been set up for it ? Don't worry , I have not done that but it is becoming available close by and I am considering some horsepower upgrades . I appreciate any constructive comments . :wave

Bad things.... very bad things...

arpad_m · 10-05-2022, 01:27 PM

Mix it down, otherwise you'll be looking at a shiny new LT4 crate engine and your $20k lighter wallet soon.

SATINSTEEL1LE · 10-05-2022, 01:28 PM

Yeah your car is setup for e10. You do the math.

Vigilante375 · 10-05-2022, 01:52 PM

The stock tune is good up to ~95 octane. More than that, you're going to gain nothing in power.

Adding too much will cause damage, as stated.

KILLA BEE · 10-05-2022, 02:06 PM

Quote:

Originally Posted by VORTEX1

What problems would someone expect to see if E-90 was added to a stock ZL1 that has not been set up for it ? Don't worry , I have not done that but it is becoming available close by and I am considering some horsepower upgrades . I appreciate any constructive comments . :wave

It's a guy on FB does a mix with no tune and gets fast drag times!!!

Terry the Tramp · 10-05-2022, 02:31 PM

Your going to hear, BOMB!!!!

Idaho2018GTPremium · 10-05-2022, 04:03 PM

Ethanol has a much lower energy content per gallon than gasoline, so you need much more fuel flow with E. Without a tune your computer will think it’s burning gasoline, and won’t send nearly enough fuel, and that will ruin your day.

Octane and energy density of the fuel are two different things. You could mix 100 octane unleaded race gas with 91 or 93 octane gas and achieve higher overall octane gasoline.

SATINSTEEL1LE · 10-05-2022, 04:05 PM

Quote:

Originally Posted by KILLA BEE

It's a guy on FB does a mix with no tune and gets fast drag times!!!

Leaner is meaner - until it pops. There is no way you should be trying to lean out the stock tune by goin e30. You are asking for explosion. That dude has been lucky, very lucky.

Trochoidal · 10-05-2022, 08:41 PM

Someone is going to let the smoke out of that LT4.

Stephen12ZL1 · 10-05-2022, 09:39 PM

it will go into limp mode when the high side fuel pressure drops below threshold...there is a bit of self preservation built into the stock tune. Definitely don't run E without a tune to enable the ethanol % tables and the appropriate flex fuel sensor kit.

SATINSTEEL1LE · 10-05-2022, 10:13 PM

Quote:

Originally Posted by Stephen12ZL1

it will go into limp mode when the high side fuel pressure drops below threshold...there is a bit of self preservation built into the stock tune. Definitely don't run E without a tune to enable the ethanol % tables and the appropriate flex fuel sensor kit.

Assuming the ECM is going to be quicker to put the car into a "limp mode" vs detonation happening is a fools errand.

KingLT1 · 10-06-2022, 08:44 AM

The ECM is very quick and will enter RPM before bad things happen to the engine. It's still not a smart move either way.

10-05-2022, 12:34 PM	#1
VORTEX1 Drives: Camaro ZL1 , Corvette ZO6 Join Date: Mar 2019 Location: Newburgh , Indiana Posts: 13	E-90 with stock tune What problems would someone expect to see if E-90 was added to a stock ZL1 that has not been set up for it ? Don't worry , I have not done that but it is becoming available close by and I am considering some horsepower upgrades . I appreciate any constructive comments . :wave

10-05-2022, 12:37 PM	#2
DaveC113 Drives: 2018 Camaro 1SS 1LE Join Date: Sep 2018 Location: Front Range, CO Posts: 1,868	I'd expect it to run lean and melt pistons. __________________

10-05-2022, 01:27 PM	#4
arpad_m Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017 Location: East Tennessee Posts: 11,616 View My Garage	Mix it down, otherwise you'll be looking at a shiny new LT4 crate engine and your $20k lighter wallet soon. __________________ 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, 04:03 PM	#9
Idaho2018GTPremium Drives: 2021 Camaro ZL1 A10 Join Date: Nov 2018 Location: Idaho Posts: 1,211	Ethanol has a much lower energy content per gallon than gasoline, so you need much more fuel flow with E. Without a tune your computer will think it’s burning gasoline, and won’t send nearly enough fuel, and that will ruin your day. Octane and energy density of the fuel are two different things. You could mix 100 octane unleaded race gas with 91 or 93 octane gas and achieve higher overall octane gasoline. __________________ 2021 Camaro ZL1 A10 2022 GR Supra 3.0 Past: 2018 Mustang GT Premium w/ PP1, MR, and A10 2007 MazdaSpeed3 1995 Pontiac Trans Am 1987 Camaro Z28

10-05-2022, 08:41 PM	#11
Trochoidal Drives: 2017 Camaro 2SS A8 Join Date: May 2019 Location: USA Posts: 1,656	Someone is going to let the smoke out of that LT4. __________________ Roto-Fab w/sound tube delete, Katech ported TB, Pray IM, Velossa, DD side markers, DSX FF, UPR Catch can, Halo brace, My custom vent gauge pod Originally Posted by arpad_m - “Aww, yet another oil thread with almost the same question in the OP“

10-05-2022, 01:28 PM	#5
SATINSTEEL1LE Account Suspended Drives: 21 ZL1 Join Date: Feb 2022 Location: South East Posts: 662	Yeah your car is setup for e10. You do the math.

10-05-2022, 01:52 PM	#6
Vigilante375 Drives: 2018 Camaro ZL1 Join Date: Aug 2018 Location: Georgia Posts: 1,370	The stock tune is good up to ~95 octane. More than that, you're going to gain nothing in power. Adding too much will cause damage, as stated.

10-05-2022, 02:31 PM	#8
Terry the Tramp Drives: Camaro ZL1 Join Date: May 2020 Location: FL Posts: 30	Your going to hear, BOMB!!!!

10-05-2022, 09:39 PM	#12
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,808	it will go into limp mode when the high side fuel pressure drops below threshold...there is a bit of self preservation built into the stock tune. Definitely don't run E without a tune to enable the ethanol % tables and the appropriate flex fuel sensor kit. __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

10-06-2022, 08:44 AM	#14
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,800	The ECM is very quick and will enter RPM before bad things happen to the engine. It's still not a smart move either way. __________________ 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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