Z06 e-85
Thread Starter
Team Owner
Joined: Aug 2011
Posts: 21,592
Likes: 1,619
From: GREER SC
Safety Car
Joined: Nov 2011
Posts: 3,715
Likes: 343
From: Norman OK
If you knew it was going to cost around $2500 just on the tuning side before whatever the tuner charges to be able to tune for E85 on a C7 ZR1, would that change your mind...lol
Thats not including the ethanol sensor kit, plus having to remove the passenger side fender to be able to pin the ECU for the ethanol sensor.
Safety Car
Joined: Mar 2004
Posts: 4,048
Likes: 1,478
From: South Florida
Tuning the ZR1 for Flex Fuel is far more expensive than tuning a Z06 for Flex Fuel. Installing the sensor and pinning the ECU is actually pretty easy so don't let the fender part scare you.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Drifting
Joined: Jun 2013
Posts: 1,428
Likes: 478
From: Maryland, USA
yeah amazing what e-85 and a tune can do for a LT4.
I keep coming back to wanting to do this. I maybe just get a kit and install it but just run 93 till I can work on getting tuned somehow.
Im kinda worried about that its more prone to absorb moisture from the air and I tend to have gas in my gas thats months old sometimes.
I keep coming back to wanting to do this. I maybe just get a kit and install it but just run 93 till I can work on getting tuned somehow.
Im kinda worried about that its more prone to absorb moisture from the air and I tend to have gas in my gas thats months old sometimes.
Safety Car
Joined: Mar 2004
Posts: 4,048
Likes: 1,478
From: South Florida
Melting Slicks
Joined: Aug 2018
Posts: 2,172
Likes: 2,479
yeah amazing what e-85 and a tune can do for a LT4.
I keep coming back to wanting to do this. I maybe just get a kit and install it but just run 93 till I can work on getting tuned somehow.
Im kinda worried about that its more prone to absorb moisture from the air and I tend to have gas in my gas thats months old sometimes.
I keep coming back to wanting to do this. I maybe just get a kit and install it but just run 93 till I can work on getting tuned somehow.
Im kinda worried about that its more prone to absorb moisture from the air and I tend to have gas in my gas thats months old sometimes.
Safety Car
Joined: Mar 2004
Posts: 4,048
Likes: 1,478
From: South Florida
I run full e85 in my z and it’s fine as long as you don’t store the car Long term with it in the gas tank. Before I put the car away for the winter last November I tan two tank fills of regular 93 and parked it with just 93 and no e in the gas tank or lines what so ever. That e turns to straight water if you keep it stored that way long term so just do what I do if you’re going to let the car sit for a few months without driving it and your good.
Let me get this straight. You are saying that Ethanol pulls a Jesus move and turns into water?
Safety Car
Joined: Nov 2011
Posts: 3,715
Likes: 343
From: Norman OK
I run full e85 in my z and it’s fine as long as you don’t store the car Long term with it in the gas tank. Before I put the car away for the winter last November I tan two tank fills of regular 93 and parked it with just 93 and no e in the gas tank or lines what so ever. That e turns to straight water if you keep it stored that way long term so just do what I do if you’re going to let the car sit for a few months without driving it and your good.
I dont know who told you this or what internet folklore you read that said this, but it isnt accurate at all. I have stored vehicles for 3-4 months with E85 in them and they fired up just fine. My buddy has my old 17 SS 1LE that was on E85, it just sat for 14 months with an almost full tank of E85 in the tank while waiting on the engine rebuild and the E85 was fine it as well.
E85 doesnt absorb as much water as people try to lead everyone to belive.
Drifting
Joined: Jun 2013
Posts: 1,428
Likes: 478
From: Maryland, USA
cool thanks for the insight.
is this the recommended kit?
https://dsxtuning.com/products/dsx-f...vette-stingray
because there seems to be a few others i havent seen too much:
https://www.texas-speed.com/p-8615-s...-fuel-kit.aspx
I like the appearance of this one in the engine bay:
https://www.lethalgarage.com/product...39799169548359
is this the recommended kit?
https://dsxtuning.com/products/dsx-f...vette-stingray
because there seems to be a few others i havent seen too much:
https://www.texas-speed.com/p-8615-s...-fuel-kit.aspx
I like the appearance of this one in the engine bay:
https://www.lethalgarage.com/product...39799169548359
Melting Slicks
Joined: Aug 2018
Posts: 2,172
Likes: 2,479
I dont know who told you this or what internet folklore you read that said this, but it isnt accurate at all. I have stored vehicles for 3-4 months with E85 in them and they fired up just fine. My buddy has my old 17 SS 1LE that was on E85, it just sat for 14 months with an almost full tank of E85 in the tank while waiting on the engine rebuild and the E85 was fine it as well.
E85 doesnt absorb as much water as people try to lead everyone to belive.
E85 doesnt absorb as much water as people try to lead everyone to belive.
Safety Car
Joined: May 2000
Posts: 4,828
Likes: 355
From: Albuquerque NM
E-85 is a great fuel for the LT4. I gained over 65 SAE RWHP compared to 91 octane premium (best available here).
Safety Car
Joined: Mar 2004
Posts: 4,048
Likes: 1,478
From: South Florida
completely false
Exactly
Either they greatly exaggerated or you heard incorrectly. Your fuel tank is sealed. It would take quite a long long time for it to absorb moisture. In reality you can store it for months without an issue, but if you're worried, run it low on E and then put a 1/4 tank of 91/93 in the tank and store it for a few months. There will be NO issue. 91/93 already has 10-15% ethanol in it. Mixing with gas changes its composition and make it much less likely to absorb moisture from the air. Now I wouldn't store a car long term with Ignite 90 in the tank. That is 90% + ethanol. But storing a car for 3-6 months with E40-E60 isn't an issue.
exactly again
I dont know who told you this or what internet folklore you read that said this, but it isnt accurate at all. I have stored vehicles for 3-4 months with E85 in them and they fired up just fine. My buddy has my old 17 SS 1LE that was on E85, it just sat for 14 months with an almost full tank of E85 in the tank while waiting on the engine rebuild and the E85 was fine it as well.
E85 doesnt absorb as much water as people try to lead everyone to belive.
E85 doesnt absorb as much water as people try to lead everyone to belive.
I have been running E-85 continuously in my 2015 Z06 for 3+ years which includes sitting in the garage for weeks during inclement weather. I have never had an issue with my fuel absorbing too much water and causing starting or other problems. The fuel system is closed off with very little exposure to damp air. Sitting for long periods probably sucks in even less water because there is less movement of air exposing the fuel to water. I worry more about getting bad fuel from old corroding storage tanks at service stations.
E-85 is a great fuel for the LT4. I gained over 65 SAE RWHP compared to 91 octane premium (best available here).
E-85 is a great fuel for the LT4. I gained over 65 SAE RWHP compared to 91 octane premium (best available here).
