E85 question - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

2010_camaro · 11-09-2017, 04:14 AM

Ok so my car is tuned on 93 only. It's on the rich side during a pull. Roughly high 10s afr. Would I be safe running a couple gallons of E85 in my tank?

fif_gen_powa · 11-09-2017, 08:38 AM

well yeah you could sure, it should work in theory yes, if you can monitor/datalog afr/kr ect. but not something I'd just want to go "wing it" every time and hope its right. Flex fuel sensors are cheap and easy to install. The gains switching to e85 on high boost setups are huge its well worth it as long as you have decent tuner

dreksnot · 11-09-2017, 08:45 AM

What’s taking you so long? You should have already been converted over to E85 long ago. Very good gains there.

2010_camaro · 11-09-2017, 02:35 PM

E85 is only sold at two stations locally and both are a 20-25 min drive away. I'm going to a street outlaws event in Bowling Green and was going to put some in the tank for just a added octane boost. My car was tuned on a 90* day. Well the temps at night are dropping in the 40s. I've been noticing my car gets boost spikes sometimes so in was hoping at just a couple gallons of corn to get just a slight better octane and some cooling on the piston.

But im just wondering since it requires more fuel for e85 will my car lean out some with running a couple gallons?

blake-b · 11-09-2017, 02:43 PM

Do you have a flexfuel sensor?

fif_gen_powa · 11-09-2017, 05:43 PM

Yes it will lean out if you add enough e85, maybe throw a couple gallons of race fuel in would be safer. Do you have a wideband o2 gauge?

Dirtdog · 11-09-2017, 08:16 PM

I cant see that working. without the sensor I can only see problems.

2010_camaro · 11-09-2017, 08:21 PM

I don't have the sensor. I'm not looking at add timing. Just octane and some cooling on the pistons.
Yes I have a wideband. During a pull it's around 10.8 afr. Im only on 14* of timing and on the rich side. It running a little lean probably would help some but I'm just after the cooling and octane.
Only race gas I have is 116 leaded

fif_gen_powa · 11-09-2017, 08:43 PM

No one is gonna tell you to do it, but it'll work. My car picked up a ton of power when I did my first flex fuel tune and was running only a 50/50 mix of pump gas and e85 which would be around 45-50% ethanol total. Just keep the a/f ratio in the 11's, monitor knock if possible or read plugs after pull

11-09-2017, 04:14 AM	#1
2010_camaro Drives: 2014 Camaro SS Join Date: May 2011 Location: Florence, KY Posts: 2,238 View My Garage	E85 question Ok so my car is tuned on 93 only. It's on the rich side during a pull. Roughly high 10s afr. Would I be safe running a couple gallons of E85 in my tank? __________________ MODS 6.0 forged iron block, TH400, B&M shifter, DSS axles & driveshaft, Viking / BMR suspension, Full custom fuel system with cell, Twin 76mm teriyaki tornados on 24lbs. https://www.instagram.com/whoopa_ss/

11-09-2017, 08:38 AM	#2
fif_gen_powa Drives: 2013 Camaro SS Turbo Join Date: Apr 2014 Location: South Florida Posts: 1,525	well yeah you could sure, it should work in theory yes, if you can monitor/datalog afr/kr ect. but not something I'd just want to go "wing it" every time and hope its right. Flex fuel sensors are cheap and easy to install. The gains switching to e85 on high boost setups are huge its well worth it as long as you have decent tuner __________________ 388ci 91/104 Turbo TH400 8.3@164 https://instagram.com/turbo_ls3/

11-09-2017, 08:45 AM	#3
dreksnot Served USN - Atomic Chimp Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012 Location: Fort Collins, CO Posts: 1,603 View My Garage	What’s taking you so long? You should have already been converted over to E85 long ago. Very good gains there. __________________ In excess of 1,000WHP LSX434 \| AGP 65/65 TT \| BTR Equalizer Intake \| Trickflow 245cc cathedral \| BTR custom cam \| Cortex EBC \| n2mb WOT \| ID-1700x \| Brisk GR12S \| RPM Lv 7 TR6060 \| AGP's Triple 525LPH Fore Fuel \| Monster LT1-S Triple \| 4.11 DSS Proform 9", CF driveshaft, 1400hp axles \| Hurst Line Lock \| MGW Retro Short Throw w/old skool Hurst T-handle \| ADM solid subframe mounts \| Prothane Motor Mounts \| Revshift Poly Trans insert \| Moreno camber/caster plates

11-09-2017, 02:35 PM	#4
2010_camaro Drives: 2014 Camaro SS Join Date: May 2011 Location: Florence, KY Posts: 2,238 View My Garage	E85 is only sold at two stations locally and both are a 20-25 min drive away. I'm going to a street outlaws event in Bowling Green and was going to put some in the tank for just a added octane boost. My car was tuned on a 90* day. Well the temps at night are dropping in the 40s. I've been noticing my car gets boost spikes sometimes so in was hoping at just a couple gallons of corn to get just a slight better octane and some cooling on the piston. But im just wondering since it requires more fuel for e85 will my car lean out some with running a couple gallons? __________________ MODS 6.0 forged iron block, TH400, B&M shifter, DSS axles & driveshaft, Viking / BMR suspension, Full custom fuel system with cell, Twin 76mm teriyaki tornados on 24lbs. https://www.instagram.com/whoopa_ss/

11-09-2017, 05:43 PM	#6
fif_gen_powa Drives: 2013 Camaro SS Turbo Join Date: Apr 2014 Location: South Florida Posts: 1,525	Yes it will lean out if you add enough e85, maybe throw a couple gallons of race fuel in would be safer. Do you have a wideband o2 gauge? __________________ 388ci 91/104 Turbo TH400 8.3@164 https://instagram.com/turbo_ls3/

11-09-2017, 02:43 PM	#5
blake-b Drives: 2009 ZR1 Join Date: May 2010 Location: KCMO Posts: 3,205	Do you have a flexfuel sensor?

11-09-2017, 08:16 PM	#7
Dirtdog Pro Hide n Seek Player Drives: 2010 SS LS3/LSA 620whp/630tq Join Date: May 2009 Location: Tucson, AZ Posts: 921 View My Garage	I cant see that working. without the sensor I can only see problems. __________________ 620whp/630wtq. ADM LSA Conversion, E85, PFADT Tri-Y Headers into Borla S, PFADT Swaybars, Springs, Links, 20x10 20x11 Forgestar F14s, Lots of AAC

11-09-2017, 08:21 PM	#8
2010_camaro Drives: 2014 Camaro SS Join Date: May 2011 Location: Florence, KY Posts: 2,238 View My Garage	I don't have the sensor. I'm not looking at add timing. Just octane and some cooling on the pistons. Yes I have a wideband. During a pull it's around 10.8 afr. Im only on 14* of timing and on the rich side. It running a little lean probably would help some but I'm just after the cooling and octane. Only race gas I have is 116 leaded __________________ MODS 6.0 forged iron block, TH400, B&M shifter, DSS axles & driveshaft, Viking / BMR suspension, Full custom fuel system with cell, Twin 76mm teriyaki tornados on 24lbs. https://www.instagram.com/whoopa_ss/

11-09-2017, 08:43 PM	#9
fif_gen_powa Drives: 2013 Camaro SS Turbo Join Date: Apr 2014 Location: South Florida Posts: 1,525	No one is gonna tell you to do it, but it'll work. My car picked up a ton of power when I did my first flex fuel tune and was running only a 50/50 mix of pump gas and e85 which would be around 45-50% ethanol total. Just keep the a/f ratio in the 11's, monitor knock if possible or read plugs after pull __________________ 388ci 91/104 Turbo TH400 8.3@164 https://instagram.com/turbo_ls3/