Got The Car Tuned On E85

2L8IWIN

2L8IWIN

Club Member
Finally back on the road.

Manny @ HPP in Dallas tuned the car. Really cant say enough about him and the shop/staff there. Obviously not a close shop for anyone here but it's cool to spread the word about great shops.

Here are the 13lb and 15lbs pulls. E85 with 17 degrees timing. I removed the 4R70W and put the T56 back in.

Stuff is amazing. I'll enjoy the car for now and maybe turn it up down the road.

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Great numbers. I'm switching over soon as well. I plan on driving my car a lot more with the corn and am anxious to see what kind of numbers we settle on. My combo is not as stout as yours but it's a high 9 second car.

That gonna be fun with a t-56! Woohoo!
 
Pat (Rodriguez) on the board did the turbo kit. It's a PTE88 turbo with an in intake intercooler (Shelby GT500). Engine was built by MMR (MMR1500). 5.4 modular engine.

Rev440 said:
Details on your setup? What turbo is on the car? That thing is stout.
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i think i just saw this on svtp yesterday, that's intense! great looking engine/power. how about a nice vid of the car?
 
Are you using pump e85 or e85 by a racing fuel mfg? My friend was all about running it until he found out the consistency in Michigan is not reliable at all. He spent a lot of time researching it and eventually found out that true e85 is only carried locally for about one month of the year. Of course I'm sure there are some local stations that have it longer. For me the consistency is too much to risk on a high dollar engine. I know there are tests you can do to determine the blend but that’s a lot of time to spend driving around finding/hunting for the best mix.

Warmer states have less variance in the blend so it’s not as much of a problem. But in the spring and fall it is not uncommon to find as low as e70 at our pumps.

I saw somewhere else that if you use e85 for the octane rating vs price that its usually self-defeating due to the inconsistent blends. So most people who want consistency buy their e85 from a race fuel mfg which ends up costing almost as much as racing fuel with the same or similar properties.
 
What octane would E70 even be? Any idea? Wouldnt it still be more octane than 93?? Would it richen the tune dramatically vs. E85 because it has more gasoline in it??
 
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ItsJustAHonda said:
Are you using pump e85 or e85 by a racing fuel mfg? My friend was all about running it until he found out the consistency in Michigan is not reliable at all. He spent a lot of time researching it and eventually found out that true e85 is only carried locally for about one month of the year. Of course I'm sure there are some local stations that have it longer. For me the consistency is too much to risk on a high dollar engine. I know there are tests you can do to determine the blend but that’s a lot of time to spend driving around finding/hunting for the best mix.

Warmer states have less variance in the blend so it’s not as much of a problem. But in the spring and fall it is not uncommon to find as low as e70 at our pumps.

I saw somewhere else that if you use e85 for the octane rating vs price that its usually self-defeating due to the inconsistent blends. So most people who want consistency buy their e85 from a race fuel mfg which ends up costing almost as much as racing fuel with the same or similar properties.
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Please don't take this the wrong way, but research and real world are totally different.

I have been running pump e85 for three years with no issues. The key is to tune richer than gas to benefit from the cold nature of the fuel....by doing this u will have no issues with ethanol percentages. I have been running 20psi on a non intercooler set up for a while. Afr is 9.7-10.0.
 
98 Camaro said:
Please don't take this the wrong way, but research and real world are totally different.

I have been running pump e85 for three years with no issues. The key is to tune richer than gas to benefit from the cold nature of the fuel....by doing this u will have no issues with ethanol percentages. I have been running 20psi on a non intercooler set up for a while. Afr is 9.7-10.0.
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Meijer is always around 85%, just FYI

So whats the fuel system consist of?
 
98 Camaro said:
Please don't take this the wrong way, but research and real world are totally different.

I have been running pump e85 for three years with no issues. The key is to tune richer than gas to benefit from the cold nature of the fuel....by doing this u will have no issues with ethanol percentages. I have been running 20psi on a non intercooler set up for a while. Afr is 9.7-10.0.
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I'm not saying it can't or won't work. I just wouldn't risk it on a high dollar engine build. If the blend was consistent would you be able to tune leaner? If so then your trading power for knock prevention by tuning richer. Which brings up the argument of ever using pump e85 in the first place as a race gas replacement. If your tuning richer then your burning/using more of it; this means you'll need to buy it more often. I haven't crunched the numbers because the fuel consumption of every setup will vary but to me it doesn't make a lot of sense if the savings/benefit isn’t significant over a fuel that is specifically formulated for high horsepower.

My tuning experience is entirely with 4 cylinder engines so my perspective might be a little skewed. If horsepower output is kept constant ie a 4 cylinder that makes 800 hp and a v8 that makes 800 the 4 cylinder is making more power per cylinder and is under a lot more stress. Most of the time the 4 cylinder of equal hp will be more sensitive to knock/fuel quality.

Of course we could argue about all of the factors that play into a tune/setup but I'm trying to keep it general. My major point is that at this time I am not convinced that running pump e85 has a practical cost savings/advantage over running a similar type racing fuel.


@cjmatt. I have heard that Meijer is rather consistent. I remember reading a post on e85 that someone tested various stations and Meijer came out as being the most consistant. I believe the testing was done somehwere in the Great Lakes region where the weather varies by season.

There is also a digital meter (forgot who makes it) that uses a GM factory flex fuel sensor to monitor ethanol % realtime
 
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