Homepage Garage Wiki Register Members List Social Groups Calendar Search Today's Posts Mark Forums Read
#Camaro6
Go Back   CAMARO6 > CAMARO6.com General Forums > 2016+ Camaro: 6th Gen Camaro general forum


JUICEDMOTORSPORTS


Post Reply
 
Thread Tools
Old 03-23-2017, 10:55 AM   #1
00 Trans Ram
 
00 Trans Ram's Avatar
 
Drives: 2017 2SS
Join Date: Jun 2014
Location: United States
Posts: 546
Question No E85 near me - but I have 112 . . .

So, there isn't a single E85 station in Louisiana. None that I can find, anyway. But, NOLA Motorsports has both a 106 and a 112 octane pump.

For track days, I'm thinking about putting in one of these. I'm pretty sure it'll need a tune (haven't asked around, but I'm certain it will). They question is:

If I get a tune like this, can I then go back to running regular 93 octane later in the day, or will I need to retune the car somehow (reflash with HP Tuners or some such thing)?

(Let's assume that, both when I put 112 in the car, and then switch back to 93, I'm running the tank almost dry, so I'm not mixing the fuels overly much.)
00 Trans Ram is offline   Reply With Quote
Old 03-23-2017, 11:08 AM   #2
Ryephile
Hot Dog
 
Ryephile's Avatar
 
Drives: '17 1SS 1LE
Join Date: Feb 2016
Location: Metro Detroit
Posts: 1,146
106 and 112....sounds like leaded. That would be bad.

If the track has unleaded, it's usually 100 or 104. No tune required, it's still gasoline. If you had a map switch in the ECU [for example], then you could have a more aggressive ignition map for the higher octane fuel, assuming the engine isn't already at MBT.

Given that PRAY has found that the stock ignition map is already quite aggressive with 93 octane, a tank of 100 would feel more consistent through the course of the day.
__________________
2017 "M1SS1LE" in Hyper Blue w/PDR
Ryephile is offline   Reply With Quote
Old 03-23-2017, 12:30 PM   #3
TJay74

 
Drives: 17 Camaro SS 1LE & 16 Sierra AT CC
Join Date: Nov 2016
Location: Norman, OK
Posts: 1,207
First as said, make sure it "unleaded" only fuel. Some of the higher octane stuff can be leaded aviation fuel.

Also you really don't need a full tank of 100/104. The can wont run any better from it and could actually run worse on it. The higher the octane the slower the fuel burns to combat detonation. We don't get 93 in Oklahoma anymore so I run 6 gallons of 100 octane and then the rest is 91 octane to bring me up to around 94 octane. That is plenty for what a stock car will need.
TJay74 is offline   Reply With Quote
Old 03-23-2017, 12:33 PM   #4
Chris's 00ss
 
Drives: 2000 camaro ss
Join Date: Mar 2017
Location: Louisiana
Posts: 3
Race trac in ponchatoula, la has e-85. If your in New Orleans that's the closest place.
Chris's 00ss is offline   Reply With Quote
Old 03-23-2017, 09:49 PM   #5
laynlo15
locrzn
 
laynlo15's Avatar
 
Drives: 2016 1ss A8, Npp
Join Date: Nov 2015
Location: clark, mo
Posts: 3,053
You would have to have your car tuned to run e85 plus have the flex fuel kit or the high octane fuel you are talking about and deff needs to be unleaded. Your car will not pick up any hp with the octane you have above. I would just stick with 93.
__________________
TEAM MAGNUSON laynlo@magnusonsuperchargers.com
Want a MAGNUSON/info about the HEARTBEAT. PM me
2300 HEARTBEAT (Magnuson tuned), RPM Bolt in Roll Bar, Rotofab, Pray TB, AEM, Lingenfelter Pump.(10.33@135.05 60' 1.46, 1/8 mile 6.68 best mph 106 bout 670 rwhp Race Star and Hoosiers F/R, Phastek 1.5 drop
laynlo15 is offline   Reply With Quote
Old 03-24-2017, 10:25 AM   #6
00 Trans Ram
 
00 Trans Ram's Avatar
 
Drives: 2017 2SS
Join Date: Jun 2014
Location: United States
Posts: 546
They're all unleaded fuels. It's Sunoco GT260 Plus.

Yeah, I know I'd need a tune and the flex fuel kit. I'm just wondering if, after you get a tune to run those, do you HAVE to run them all the time? Or, will the car still run fine on 93?

And, good to know about Ponchatoula! I know that Racetrack. Used to work at North Oaks, so I went there all the time. Unfortunately, I now work/live in New Orleans, so wouldn't make it up there a lot. But, I could definitely make the trip prior to a track day and fill up my tank.
00 Trans Ram is offline   Reply With Quote
Old 03-24-2017, 12:00 PM   #7
Ryephile
Hot Dog
 
Ryephile's Avatar
 
Drives: '17 1SS 1LE
Join Date: Feb 2016
Location: Metro Detroit
Posts: 1,146
Quote:
Originally Posted by 00 Trans Ram View Post
They're all unleaded fuels. It's Sunoco GT260 Plus.

Yeah, I know I'd need a tune and the flex fuel kit. I'm just wondering if, after you get a tune to run those, do you HAVE to run them all the time? Or, will the car still run fine on 93?
.....
Sunoco's highest octane unleaded is 104, just FYI. GT260 Plus is the highest and it's 104.

Just be careful you don't put leaded in the car. Leaded ruins cats and O2 sensors.
__________________
2017 "M1SS1LE" in Hyper Blue w/PDR
Ryephile is offline   Reply With Quote
Old 03-24-2017, 02:27 PM   #8
00 Trans Ram
 
00 Trans Ram's Avatar
 
Drives: 2017 2SS
Join Date: Jun 2014
Location: United States
Posts: 546
Here's a thread where Scott Foremaster (Director of Racing Operations, I think is his title) details the types of fuels.

He doesn't say what the 112 is. But, if I can get e85 an hour away, it's worth it to not pay the $12/gal that even the 104 costs.

https://nolamotor.com/NOLAforum/showthread.php?tid=143
00 Trans Ram is offline   Reply With Quote
Old 03-24-2017, 08:38 PM   #9
Ryephile
Hot Dog
 
Ryephile's Avatar
 
Drives: '17 1SS 1LE
Join Date: Feb 2016
Location: Metro Detroit
Posts: 1,146
Ah, that makes sense. Agreed on all counts.
__________________
2017 "M1SS1LE" in Hyper Blue w/PDR
Ryephile is offline   Reply With Quote
Old 03-25-2017, 10:30 AM   #10
wnta1ss
 
Drives: 2017 1SS A8
Join Date: Aug 2016
Location: NH
Posts: 477
The flex fuel kit only senses ethanol content. It can't tell what octane your gasoline has.
wnta1ss is offline   Reply With Quote
Old 03-25-2017, 07:40 PM   #11
00 Trans Ram
 
00 Trans Ram's Avatar
 
Drives: 2017 2SS
Join Date: Jun 2014
Location: United States
Posts: 546
OK, but if I get a tune for e85, can I still run 93?
00 Trans Ram is offline   Reply With Quote
Old 03-29-2017, 08:40 AM   #12
Martinjlm
Retired from GM
 
Martinjlm's Avatar
 
Drives: 2017 Camaro Fifty SS Convertible
Join Date: Mar 2017
Location: Detroit
Posts: 541
Steer Clear of E85

Folks, please be careful with E85. When I worked in GM Powertrain Service Engineering, we were working on the requirements for supporting E85. At that time, the only small block engines we were making E85 capable were truck engines. In order to make E85 capable, we had to have special hardening processes on the valves and valve seats for certain. We may have actually done the camshaft also, but in all honesty I can't recall that for certain.

Without the special hardening, valves and valve seats could become pitted due to the high ethanol content. Gasoline engines are engineered to be capable of managing E10, not E15, not E20 and DEFINITELY NOT E85 without the special hardening.

I will contact some folks on the Small Block Engineering Team and get detail on whether or not they still have concerns about E85 in LT1. I am almost 100% certain that they will say no way / no how.
Martinjlm is offline   Reply With Quote
Old 03-29-2017, 09:06 AM   #13
Martinjlm
Retired from GM
 
Martinjlm's Avatar
 
Drives: 2017 Camaro Fifty SS Convertible
Join Date: Mar 2017
Location: Detroit
Posts: 541
More on E85

Ok, I spoke to the Chief Engineer for Small Block. Some good news / bad news here....

GOOD NEWS:
When LT1 added Direct Injection, the hardening processes were added, so all small block V8s get the hardened valves, guides, and seats, so no risk of ethanol corrosion or pitting

BAD NEWS:
If you do not add the fuel sensor, you run a very high risk of mismatched air fuel calibration, leading to likely pre-detonation. I've noticed that most of you talking about using E85 are aware of the need to add the sensors.

MORE BAD NEWS:
The fuel pump in the LT1 does not have the capacity to manage the flow volume required to fully take advantage of E85. It requires more volume than gasoline or E10. His suggestion is to save the expense of the E85 sensor and just use octane boost. It will probably result in the same level of performance.

Hope that was helpful.
Martinjlm is offline   Reply With Quote
Old 03-29-2017, 02:09 PM   #14
JFM-jr

 
JFM-jr's Avatar
 
Drives: 2016 Camaro 2SS
Join Date: Mar 2016
Location: Suffolk Long Island
Posts: 763
Lots of folks running E85 here with full boltons.
__________________
2016 Hyper Blue 2SS A8
Moonroof,NPP
Pray ported factory intake manifold Ported TB
Rotofab
ARH 1 7/8 longtubes hi flow cats AFM deleted E85
11.0@124.9

11.65@118.8 pump gas,stock tune/exhaust


Sold:
1999 HOSS
9.87@135.8
Factory LS2 rotater, 5.3 GM head, N.A.
4L60E - Circle D converter
456RWHP
JFM-jr is offline   Reply With Quote
 
Post Reply

Tags
e85, octane, race, track, tune

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 06:31 PM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.