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Absolutely run e85 it can only help. It will help your engine run cooler and more efficient and above all will give you insurance against a bad tune or too agressive of ignition curve/timing. Even on only 7psi basic turbo setup run e85 it will only help especially to cool off oem exhaust valves
Agree there really is no downside to running E85 at any boost level, other then poorer fuel mileage and station availability. If those two things don't bug you then have at it.
And make sure and size the injectors properly for E85. They need to be at least 20% larger then required for pump gas tuning.
Last edited by s2000Junky; Dec 4, 2019 at 10:49 AM.
Why do you say it’s pointless with my lower power goal? I thought e85 was safer than pump and gives more power. Based off that it seems like a logical choice regardless of any power goals. Why use pump gas for my high end goals when it is riskier? Maybe I’m reading too much into it but I don’t see a downside to running e85 with my goals
E85 doesn't make more power. It makes less. It just allows for aggressive ignition timing. You will use about 1/3rd more fuel. If I were building another 500hp s2k, there is no way in hell I would run e85. I say that as someone who lives in Atlanta..with quite a lot E85 stations and has been on e85 for awhile because of my power level. Getting fuel mileage in the low teens is incredibly annoying. Add to that, you'll need a flex fuel sensor unless you plan to run strictly on E85, which will add substantially to the bill you are going to be paying your tuner for dual VE and IG maps.
I just look at it as the same as someone getting a 62mm turbo or id2000s or whatever else that isnt necessary for the power level they want.
Yes E85 is safer, but get a tuner that has half a clue and it wont matter anyway. At any rate, get on e85 and you'll understand.
My mpgs don’t really matter. I’m building the car knowing that fuel efficiency is going to go way down. It’s not gonna be daily. I just wanna have fun with it and learn something’s along the way
Stick with e85 especially if your unfamiliar. Get an aem Infinity, walbro 450, ID1300, and flex fuel sensor and be done with it. I made a thread about this it should be the standard.
Stick with e85 especially if your unfamiliar. Get an aem Infinity, walbro 450, ID1300, and flex fuel sensor and be done with it. I made a thread about this it should be the standard.
I have an AEM v2 instead of Infinity. Will this pose an issue?
If you have an aem v2 that works too however the infinity is much more user friendly and easier to set up a flex fuel system. My theory most tuners 'prefer' the V2 because from a business perspective: Setting up/tuning the same car will take longer and be more confusing for the client so a tuner can charge more and the end user will be so confused he wont bother wanting to learn or mess with the tune after its done with on an aem V2 vs Infinity. The truth hurts and im sure some people that charge for tuning will chime im to defend the V2. To me i want something that is very simple and easy to learn/set up and its why i highly reccomend the infinity. The V2 works but its worth the money for the infinitys simplicity/ease of use. Personally id keep an eye out for an infinity and sell the V2 unless your already very familiar with the V2. In either case dont forget you can install sensors and ecu and make sure the car starts idles and drives before even installing the turbo system. This way you know everything is good before installing the turbo
-BOV
-Wastegate
-Clutch
-Gaugeart CAN gauge
-Wheels and tires
-Headstuds
I started the build finally though, put the car on jack stands and removed the air box to clear up the front. Started removing the header but the o2 sensor before the cat is not coming out so I blasted it with some penetrating oil and will try again whenever my schedule allows it. Once the header is off I plan to install the new ARP exhaust studs.
After the exhaust studs I plan to move to the head and do the valve stem seals, AP2 keepers and retainers, and then the headstuds.
I am not the most experienced mechanic, I’m more comfortable with wiring than the mechanical parts, however with this forum, YouTube, and Facebook groups I’m pretty confident I can do most, if not all, that is needed to make the car a solid machine. The only thing I will not even attempt to do and leave it to someone with way more experience is tuning the car. I understand my lack of knowledge and experience could damage the car, but seeing as how I’m never selling the car I accept that risk.
I hope you all will join me on this journey and share your experience and knowledge with me.
