C6 ZO6 e85 conversion.
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Joined: Jul 2015
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C6 ZO6 e85 conversion.
So I have been thinking about doing an e85 conversion on my z06 just wonder what kind of power ganes to expect and also what all I would need to do the conversion. I have done a little research on the forum and looks like all I really need is a fuel pump, injectors, sensor. Would appreciate some feed back from all of you guys that have done this, I really would like to do it right the first time. So far the car has a cam, AR headers, ported heads, ported intake manifold and ported throttle body.
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Joined: Jul 2015
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E85 has a higher octane rating so you can run more timing with out knocking witch equals to more power. I believe it's somewhere around 110 octane but you will also get worse gas milage. Kind of a trade off.
Melting Slicks
Joined: Dec 2004
Posts: 2,656
Likes: 635
From: Dallas TX
you wont make much if any power simply by switching to E85 on an otherwise stock motor.
Most guys build their cars to be able to take advantage of what E85 can give you via higher compression, cam profiles, supercharging without the need for meth, etc...
But E85 in and of itself is not some magic power adder thats not worth the expense to do it correctly.
Most guys build their cars to be able to take advantage of what E85 can give you via higher compression, cam profiles, supercharging without the need for meth, etc...
But E85 in and of itself is not some magic power adder thats not worth the expense to do it correctly.
Melting Slicks
Joined: Jun 2006
Posts: 2,499
Likes: 261
From: Miami Florida
Not here to tell what to do but to say what I did others will add more but imo unnecessary stuff.
I changed the fuel pump to one that seems bigger than necessary but I'm glad I got it is 450 lph e85 Walbro which replaced the factory one changed to 72 lbs hr injectors and filled the tank with e85 had it tuned.
http://walbrofuelpumps.com/walbro-f9...-fuel-pump-e85
As for injectors here too you can go out and spend a lot of money but for half the price I got a set of fuel injector connection bosh #72
Never touched the rest of the fuel system except for the hose from fire wall to rails I got a -an line there. I hope this helps. xbx.
I changed the fuel pump to one that seems bigger than necessary but I'm glad I got it is 450 lph e85 Walbro which replaced the factory one changed to 72 lbs hr injectors and filled the tank with e85 had it tuned.
http://walbrofuelpumps.com/walbro-f9...-fuel-pump-e85
As for injectors here too you can go out and spend a lot of money but for half the price I got a set of fuel injector connection bosh #72
Never touched the rest of the fuel system except for the hose from fire wall to rails I got a -an line there. I hope this helps. xbx.
Racer
Joined: Jul 2015
Posts: 323
Likes: 15
From: Clayton NC
DSX makes a great kit for going the E85/Flex Fuel route. Easy to install and works great. Hopefully he will chime in, being one of the leading experts on E85 on the Vette 
You will need about 30% more fuel, and on an otherwise stock motor, with proper tuning, you can pick up about 15-25 hp or so.
Actually the 100-110 rating you see listed sometimes is incorrect. In Canada, the United States, Brazil, and some other countries, the headline number is the average of the RON and the MON, called the Anti-Knock Index (AKI), and often written on pumps as (R+M)/2).
Ethanol AKI ((R+M)/2) = 99.15 - https://en.wikipedia.org/wiki/Octane_rating
So if we blend 85% Ethanol with 15% 87 octane regular fuel, we get the following:
(.85 * 99.15) + (.15 * 87) = 97.33 octane
If we blend 85% Ethanol with 15% 93 octane premium fuel, we get the following:
(.85 * 99.15) + (.15 * 93) = 98.23 octane
So therefore, E85 is actually 97 to 99 octane. But with E85 you get the added benefit of it burning cooler and cleaner, which helps bring down the cylinder temperatures and therefore allows you advance the timing more and up the compression.
You will need about 30% more fuel, and on an otherwise stock motor, with proper tuning, you can pick up about 15-25 hp or so.
Actually the 100-110 rating you see listed sometimes is incorrect. In Canada, the United States, Brazil, and some other countries, the headline number is the average of the RON and the MON, called the Anti-Knock Index (AKI), and often written on pumps as (R+M)/2).
Ethanol AKI ((R+M)/2) = 99.15 - https://en.wikipedia.org/wiki/Octane_rating
So if we blend 85% Ethanol with 15% 87 octane regular fuel, we get the following:
(.85 * 99.15) + (.15 * 87) = 97.33 octane
If we blend 85% Ethanol with 15% 93 octane premium fuel, we get the following:
(.85 * 99.15) + (.15 * 93) = 98.23 octane
So therefore, E85 is actually 97 to 99 octane. But with E85 you get the added benefit of it burning cooler and cleaner, which helps bring down the cylinder temperatures and therefore allows you advance the timing more and up the compression.
