E85/Headers/Tune - VERY Surprised

marknagy13 · 12-10-2017, 01:00 PM

As the title says, finally got tuned for e85 and long tube headers. Running the EFI flex fuel kit and Kooks 1 7/8 in to MBRP catback exhaust. I am extremely surprised as how much faster the car feels now. I knew it would be 50-60 whp but it makes solid power all the way across the power band.

SSDanny · 12-10-2017, 06:11 PM

Who did your tune!? I only gained about 35-40WHP and have the exact same mods. Unless my E content is really bad lol.

oldman · 12-10-2017, 06:51 PM

Tim did mine and I had to get new tires. Michelin pilot sport plus PS4. I can't agree more with the OP, it is crazy all the way from low to top, and tip in.

jaysonstuart · 12-10-2017, 07:29 PM

So when you're tuned for E-85 and using the flex fuel sensor does that mean you can only use E-85 now?

Dubchitts · 12-10-2017, 07:41 PM

Quote:

Originally Posted by jaysonstuart

So when you're tuned for E-85 and using the flex fuel sensor does that mean you can only use E-85 now?

You can go back and forth. Just mix it right in

marknagy13 · 12-10-2017, 07:55 PM

Quote:

Originally Posted by SSDanny

Who did your tune!? I only gained about 35-40WHP and have the exact same mods. Unless my E content is really bad lol.

Cunningham Motorsports did. It really depends from dyno to dyno and place to place. It cant' be that because the way they tuned it, they told me that I will get full timing at 50% ethanol so that way it's safe and won't blow the motor lol

marknagy13 · 12-10-2017, 07:56 PM

Quote:

Originally Posted by jaysonstuart

So when you're tuned for E-85 and using the flex fuel sensor does that mean you can only use E-85 now?

Ya Dubchitts is correct. With a flex fuel sensor you can do any mixture of e85 and 91. HP will just go up and down depending on what's in the tank.

marknagy13 · 12-10-2017, 07:56 PM

Quote:

Originally Posted by oldman

Tim did mine and I had to get new tires. Michelin pilot sport plus PS4. I can't agree more with the OP, it is crazy all the way from low to top, and tip in.

Definitely! I noticed the traction control coming on in 3rd gear on my first pull!

SSDanny · 12-10-2017, 08:10 PM

Quote:

Originally Posted by marknagy13

Cunningham Motorsports did. It really depends from dyno to dyno and place to place. It cant' be that because the way they tuned it, they told me that I will get full timing at 50% ethanol so that way it's safe and won't blow the motor lol

Ahh I see! Glad you finally got your headers tuned! Do you feel a difference in the throttle response now from tuned and untuned headers?

marknagy13 · 12-10-2017, 11:28 PM

Quote:

Originally Posted by SSDanny

Ahh I see! Glad you finally got your headers tuned! Do you feel a difference in the throttle response now from tuned and untuned headers?

Not really. There's more power available down low so it may feel that way, but throttle response is about the same.

L78toLT1 · 12-11-2017, 08:17 AM

I've been running E85 exclusively since installing my flex fuel sensor kit - probably on tank 5 or 6 by now. The car has felt noticeably stronger from the beginning, the difference was not at all subtle and I was very pleased with the butt dyno increase. That being said, I filled up at a different station last week and the car really came alive, I am certain the increase from this tank vs my first several E85 fills was as much or more than when I switched from 93 octane to E85.
I wonder If the alcohol content is fairly consistent for a given station? It would be nice if this were the case but I expect it's just a crap shoot.

marknagy13 · 12-11-2017, 11:38 AM

Quote:

Originally Posted by L78toLT1

I've been running E85 exclusively since installing my flex fuel sensor kit - probably on tank 5 or 6 by now. The car has felt noticeably stronger from the beginning, the difference was not at all subtle and I was very pleased with the butt dyno increase. That being said, I filled up at a different station last week and the car really came alive, I am certain the increase from this tank vs my first several E85 fills was as much or more than when I switched from 93 octane to E85.
I wonder If the alcohol content is fairly consistent for a given station? It would be nice if this were the case but I expect it's just a crap shoot.

The ethanol content does vary from station to station yes. It will depend on your tune and how they did it. Also keep in mind it could be something simple like the temperature outside dropped and your car is just running harder. Tough to say.

JBones81 · 12-11-2017, 07:23 PM

Any downside to running e85 in our cars?? Like longevity wise, or damage to fuel system...anything?

marknagy13 · 12-11-2017, 08:06 PM

Quote:

Originally Posted by JBones81

Any downside to running e85 in our cars?? Like longevity wise, or damage to fuel system...anything?

None that anyone is aware of. Many Chevy cars can run flex fuel from the factory.

12-10-2017, 06:11 PM	#2
SSDanny Drives: 2017 Camaro SS M6 Join Date: Apr 2017 Location: LA Posts: 447	Who did your tune!? I only gained about 35-40WHP and have the exact same mods. Unless my E content is really bad lol. __________________ 2017 Camaro SS - Kooks Long Tube Headers 1-7/8th - EFI Flex Fuel Kit - Megan Racing Coilovers - FORGESTAR F14's 20x9.5 & 20x11

12-10-2017, 06:51 PM	#3
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,320	Tim did mine and I had to get new tires. Michelin pilot sport plus PS4. I can't agree more with the OP, it is crazy all the way from low to top, and tip in. __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.

12-11-2017, 08:17 AM	#11
L78toLT1 Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017 Location: North Ga Posts: 1,787	I've been running E85 exclusively since installing my flex fuel sensor kit - probably on tank 5 or 6 by now. The car has felt noticeably stronger from the beginning, the difference was not at all subtle and I was very pleased with the butt dyno increase. That being said, I filled up at a different station last week and the car really came alive, I am certain the increase from this tank vs my first several E85 fills was as much or more than when I switched from 93 octane to E85. I wonder If the alcohol content is fairly consistent for a given station? It would be nice if this were the case but I expect it's just a crap shoot. __________________ Baby Blue 2016 Hyper Blue 2SS/6m/MRC/NPP/Silver Rally stripes/ZL1 wheels & brakes/GForce DS and axles/ZLE Cradle Bushings/FE4 ARB front & rear/SEMA Grill/Rotofab dry/95mm TB/Magnuson 2300/Full LT4 fuel system/JMS boost-a-pump/E85 Sensor/Ported CID heads from LME/Cammotion PD cam/Thompson Motorsports forged shortblock/catted Kooks 1 7/8 headers /JRE remote tuned

12-11-2017, 07:23 PM	#13
JBones81 Drives: 22 ZL1, 18 RS3, 22 M3P Join Date: Oct 2016 Location: Walnut Creek, CA Posts: 936 View My Garage	Any downside to running e85 in our cars?? Like longevity wise, or damage to fuel system...anything? __________________ 2022 ZL1 - M6, Wrapped, Tinted, Rotofab intake, MBRP AxleBack, Lots of BMR rear suspension components 2022 Tesla Model 3 Performance 2018 Audi RS3 - Many mods & e85 Instagram - @JBsCars

12-10-2017, 07:29 PM	#4
jaysonstuart Drives: 2016 Camaro 2SS Join Date: Jun 2012 Location: Albany, OR Posts: 685 View My Garage	So when you're tuned for E-85 and using the flex fuel sensor does that mean you can only use E-85 now?

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