Hi All,
I have a few questions as I am trying to figure out what my next step is with my car. It is an 08 LS3 6 speed with A&A v3 T-trim kit as well as ETMC Ripper cam, all bolt ons etc. Car is making approx 8 lbs of boost

The car is currently tuned for the crap 91 octane gas thats available here in Oklahoma, however a local new gas station just opened up that is offering E85. So, here are a few questions..
1) Would I need to upgrade the injectors that came with the A&A kit, and if so what would you recommend?
2) Would I need to upgrade fuel system, and if so approx which level hp fuel system?
3) Would it be safe to have a handheld tuner with both e85 and regular tunes, that way I could switch back to regular tune if e85 wasn't accessible wherever I was?
4) Lastly, how much should I expect a retune to e85 cost? Is this something that is easily done or is it a significant tune?

Now onto meth
1) Would it just be smarter to run meth to increase octane and allow more timing to make more power?
2) Are there any special requirements to run meth and e85 at the same time?
3) How much should I expect a meth tune to run me?
4) Could I install the meth kit myself, drive the car to the tuner with it inactive, and then have them tune for the meth from there?

Thanks all, sorry for so many questions, just pretty inexperienced as to how all of this stuff works. All I know is I would like to make the power I know the car is capable of making, and to do that I will need better fuel or meth. Thanks!

 

I have mine tuned for both pump and e85 it seems to work great. Also with the meth mine is just there for safety

 

What's it making for power right now?

 

634/501 but was pulled back a little bit just to be extra safe...tuned for 91 octane.

Michael ZR1 - what is the process you use to switch between 93 and e85 tune? do you use a handheld such as intune or something? Thanks

 

Around 800 on e85 and 760 on pump I think

 

any other input on this? thanks!

 

http://www.hptuners.com/forum/showth...om-OS-Addition

 

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Ill try my best to help, I have more experience with meth then E85 but am planning to run E85 in the near future.

E85

1 and 2 go together and would be determined by your tuner and the power level you want. I believe the AA kit comes with 60cc injectors good to 700rwhp @ stock 60 fuel psi. E85 is less dense by about 30% so you would need to install injectors and fuel system 30% larger then your intended power level. So a 700rwhp E85 car needs a 900rwhp fuel system

3) I am not sure if this is possible with the hand held tuners but would be an awesome idea! Especially considering the loss of MPG you see with E85.

4) I am not a tuner but I don’t see why a tune for E85 should cost more then a pump tune. Figure standard FI tuning rates at your preferred shop.

Meth

1) Meth is great because it only injects when needed. In addition to providing more octane and fuel to the system it keeps everything cool to prevent detonation. I run meth in my car and take a lot of precautions to ensure it always works.

Meth can be used in three ways:
a. Sprayed on your current tune to prevent any power loss as ambient temps rise. This is regarded as the safest route because even if the system isn’t utilized your car provides enough fuel
b. Sprayed during tuning to allow more timing. This provides about a 10% bump over a maxed out pump gas tune. If the system is not utilized the engine pulls timing and you are still safe.
c. Sprayed while running more boost and timing into the motor. This can make as much power as you desire but special precautions must be taken and safeties placed in the tune to protect the motor in case the system is not run.


2) You could run both, if this is the case I would wait until both are installed and have a single tune performed to minimize tuning expenses

3) Likely the same as a normal tune for FI cars, $5-800

4) You bet, I did this and just the shop remove my restrictor plate (in your case install smaller pulley). The install is not very difficult. I used the ECS system and followed their picture instructions. I am good with auto electronics so the wiring went smoothly. I can definitely talk you through the process if you had questions.

I have some questions
1) What is your power goal
2) What is your intended use?
3) Do you ever plan to build a motor for even more power?
4) Do you have a tuner you can discuss this with

Im always around to help just shoot me a PM

 

Great post, I am interested in doing te same thing, my car is currently getting the blower and some other parts installed, might ask for a dual tune as well, it would be cool to have an e85 set-up for track events or mexico runs and the crappy 91 tune for daily driving.

 

The ultimate setup is a system that can sense E85. It allows the computer to adjust for any fuel from E85 to 93 on the fly. This is especially handy if you were to get a not so pure tank of E85 from the pump.

 

Dave, you never cease to impress me

 

That sounds great, any idea how to implement it?

 

You need a computer that has the capability to detect E85 levels at the fuel rail. I am only aware of the Haltech being able to do this but perhaps someone can chime in with other options.

If all else fails a 93 + meth tune could work just as well using the OEM computer.

 

Thanks for the in depth reply!
1) My goals aren't anything extreme as I want to stay safe, maximum 650 rwhp, I am looking to bump my rwtq number thought as I felt it was a bit low at 500 even.
2) My intended use is for the street, I drive the car almost every day with nice weather, so again reliability is always a priority.
3) Eventually I may build the motor, however I don't have plans of doing that anytime in the near future, unless something bad happens and it breaks, haha.
4) My A&A kit was installed and tuned by Stephen at ETMC as well as the cam, so I could certainly talk to him. Problem is, he is about a 5 hour drive from me so I am trying to gather as much info/decide on a plan beforehand.

Thanks again, I read through DSteck's link, and I grasped just a little bit of what was being discussed. I certainly don't have the knowledge of the guys in that thread, so if somebody could put the generalized idea into simpler terms that would be a huge help!

 

Boredom spawns a lot of innovation. Lol.



PM me for more info on using the flex fuel side. I can't publicly discuss it without fear of the moderators slapping my hand. Also, any E38 can do true flex fuel. No need for aftermarket engine management.

 

Its my pleasure to help out!

1) 650 is pretty safe on the stock LS motors, I think 91 + meth can get you there pretty easily actually with E85 being even safer. Thats a safe area on the LS motors and will be very fast on the roads while not being over-ally uncontrollable

2) For sure, lots of guys running around at 650-750 on the stock motor without issues, all you should have to orry about is oil and belt changes

3) Good thinking, at 650 your origional motor should give you a few years and many miles of service. By the time it shows signs of wear you will likely want more and be steeping up to something like a 408/ YSI combo

4) Its a great idea to get informed like you are doing, once you know what you like you can give Stephen a call and set up a retune