Black04silverado

Whats up guys I own a Performance shop here in OKC
(shelby Killer Performance)
we have built countless ls car and are starting to see more and more LT cars. I have developed a plug and play flex fuel sensor for the C7Z's

(yes I know this is nothing new plenty of kits already out)
I mainly made it for me to Install on my own customers cars not really to try and sell online.

But anyways we have a shop car we tinker with for testing purposes.
bone stock on a dyno jet it made 531/550
We switched dynos to a new Mustang 1750 dyno
Today we strapped the shop car back down with the E85 Sensor.
Fearing wed run out of pump we mixed it to E40.
The Car on this dyno on this day made 500/550 on 91.
mixed some E into it E40 to be exact. Car made 551/601
only thing that changed from the 500 horse pull was we put E in it and were able to lean on it a little harder (timing fueling ect)
Mind you this is a bone stock car stock fuel system stock cats stock cold air stock everything.
Has anyone else had similar gains from just E40? next plan is to delete the cats and port the tb/snout.

for some perspective we tuned another C7z as well.

2016 car A8 IW 9% lower Texas speed headers and haltech cold air on 93 and it ended up making 577/677
both cars on a 18inch drag radial.

Dfwz06

I picked up 60 at the wheels by going to e85. I run 100% e85 with meth. But from what I understand, the benefits of running 100% vs 30-40% aren't much. So your findings sound about right.

etekberg

sent a pm

Scottcolem

60 RWHP form E85? I guess I need to order the kit ASAP!!

TRANS DAMM

Stock everything BUT tune right?

Taz Golf

I thought you would need a cam with larger fuel lobe in order to run 100% E85.

AZGASSER

I did mine with a CPR low side fuel pump and an Alky Control meth kit. I thought that was easier than doing a cam swap.

davepl

How do you separate the benefits of E85 from the benefits of the tune? Did you try running E10 with that same tune to get a baseline without the extra ethanol?

Higgs Boson

You can run E85 on a bone stock Z06 but once you start increasing airflow then you will need to add fuel system capability. Also, there is no need to run full E85 and max out the fuel system, even after modifications you can run E40 and get almost all of the benefits of E85.

That's the point of the flex fuel sensor. No tune changes for fuel changes, it adjusts for the ethanol automatically; stoich, spark, injection timing, PE fueling, etc etc all calculate and adjust automatically based on the measured E % once the tune is set up properly.

It's very common to see 30hp gains on the LT1 and 50hp on the LT4. Even more on other boosted applications. These results are not new or out of the ordinary.

0Terry@BMS

I make around 50whp more with E30 compared to 91 octane. But, 91 octane is pretty bad.... The gains over good 93 would not be nearly as dramatic.