01-13-2023, 02:45 PM | #1 |
Drives: 2017 Camaro SS Join Date: Nov 2022
Location: Indiana
Posts: 54
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Horsepower gains from flex fuel kit
I was thinking about buying a flex fuel kit for my '17 SS but I was curious as to how much horse power I would see or if it would even make a difference. Also which brand of flex fuel kit I should purchase.
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01-13-2023, 03:13 PM | #2 |
Drives: '17 Camaro 2SS & '99 Camaro Z28 Join Date: Feb 2014
Location: Austin, TX
Posts: 1,848
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Any other mods? CAI? Headers? Exhaust?
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01-13-2023, 04:10 PM | #3 |
Drives: 2021 300 Join Date: Jan 2015
Location: New Jersey
Posts: 968
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No difference.
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01-13-2023, 04:11 PM | #4 |
Drives: 2020 LT1 M6 Join Date: Jan 2016
Location: South, the DEEP south
Posts: 1,114
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The flex fuel kit will require a tune. Bolt on LT1s see an additional 25-30 rwhp running E85. It is definitely a noticeable difference.
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[SBE] ECS NOVI 1500 supercharger, 2" Longtube headers, flex fuel, LT4 injectors, LT4 HPFP, baro breakout
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01-13-2023, 05:27 PM | #5 |
Drives: 2017 Camaro SS Join Date: Nov 2022
Location: Indiana
Posts: 54
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01-13-2023, 11:00 PM | #6 |
Drives: '17 Camaro 2SS & '99 Camaro Z28 Join Date: Feb 2014
Location: Austin, TX
Posts: 1,848
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I have similar mods and with everything installed (full exhaust and CAI + E85 tune) tuned at one time I picked up between 50 and 70 HP but there is skepticism that the dyno I used wasnt accurate so I would say 50 HP to be safe.
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01-14-2023, 06:04 AM | #7 |
Drives: 2022 Camaro 2SS A10 Join Date: Jul 2022
Location: FL
Posts: 524
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What he said on stock LT1 and especially well worth it if you are going boosted in the future
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2022 Camaro 2SS/ Whipple 3.0 / 2"Headers/ PRC LTX Heads/ Forged Internals/LT4 fueling/ DSX Aux/
DSX Flex Fuel/ Meth Injection/ Katech 112 TB/ RotoFab Big Gulp/ Corsa NPP/ Various exterior mods Last edited by adamjwilson; 01-14-2023 at 03:27 PM. |
01-14-2023, 07:25 AM | #8 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,843
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Well worth it even NA. LT1's pick up 20+ whp even bone stock with E85 and a tune.
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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 |
01-14-2023, 08:39 AM | #9 | ||
Retired from GM
Drives: 2017 Camaro Fifty SS Convertible Join Date: Mar 2017
Location: Detroit
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Quote:
Quote:
The other benefit, if you live in an area with good availability of E85, is cost savings on fuel. Since I added flex fuel I’ve been paying from $1.79 to $2.99 per gallon. Right now the stations near me that have E85 are at $2.49. 93 octane is $4.07 at gas stations, $3.79 at Costco. A buck thirty a gallon is a decent savings.
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2017 CAMARO FIFTY SS CONVERTIBLE
A8 | MRC | NPP | Nav | HUD | GM Performance CAI | Tony Mamo LT1 V2 Ported TB | Kooks 1-7/8” LT Headers | FlexFuel Tune | Thinkware Q800 Pro front and rear dash cam | Charcoal Tint for Taillights and 3rd Brakelight | Orange and Carbon Fiber Bowties | 1LE Wheels in Gunmetal Gray | Carbon Fiber Interior Overlays | Novistretch bra and mirror covers | Tow hitch for bicycle rack | |
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01-14-2023, 08:50 AM | #10 |
Drives: 2022 2 SS 1LE on order ....now a 23 Join Date: Jan 2022
Location: North TX
Posts: 285
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You have to figure in the fuel milage which drops with E.
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01-14-2023, 09:41 AM | #11 |
Drives: 2017 Camaro SS Join Date: Nov 2022
Location: Indiana
Posts: 54
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01-14-2023, 09:43 AM | #12 |
Drives: 2017 Camaro SS Join Date: Nov 2022
Location: Indiana
Posts: 54
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which flex fuel do you recommend I get?
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01-14-2023, 09:53 AM | #13 |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,725
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"Flex fuel" means an arbitrary composition of gasoline and ethanol, typically ranging from 15% to 85% ethanol (sometimes simply referred to as "alcohol"). "Flex fuel cars" are those that are equipped to use regular gasoline as well as a gasoline/ethanol mix. Gas stations that sell "E85" provide a mix that is up to 85% ethanol.
Since ethanol has a lower energy density, more volume of it is required to produce the same horsepower, so fuel systems need to be sized to be able to supply the additional fuel volume. Ethanol burns cleaner and cooler, which allows for more aggressive tuning and thus more power in the end, provided the fuel system can cope with the extra volume requirement. (Obviously, fuel economy will take a hit when using ethanol, but ethanol is typically much cheaper than octane 93 gas.) For this reason, not all modified Camaros (equipped with an aftermarket "flex fuel kit" and the associated tune, which is a prerequisite) are able to use full E85; depending on how capable their fuel system is, they need to use a mixture that is down to E70-60-50 etc. Fortunately, however, most of the achievable power gains are realized at E60-65, after that, the law of diminishing returns kicks in, so using straight E85 out of a pump is more a matter of convenience than necessity. From what I read here, stock and even FBO SS powertrains can use E85, the fuel system only needs to be upgraded when using forced induction.
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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 |
01-14-2023, 10:36 AM | #14 |
Retired from GM
Drives: 2017 Camaro Fifty SS Convertible Join Date: Mar 2017
Location: Detroit
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True. Typically about 20-25%. At 25% mileage penalty, $2.49 E85 equates to $3.11 93 octane. Way better than $3.79.
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2017 CAMARO FIFTY SS CONVERTIBLE
A8 | MRC | NPP | Nav | HUD | GM Performance CAI | Tony Mamo LT1 V2 Ported TB | Kooks 1-7/8” LT Headers | FlexFuel Tune | Thinkware Q800 Pro front and rear dash cam | Charcoal Tint for Taillights and 3rd Brakelight | Orange and Carbon Fiber Bowties | 1LE Wheels in Gunmetal Gray | Carbon Fiber Interior Overlays | Novistretch bra and mirror covers | Tow hitch for bicycle rack | |
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