GotGrip?
Conversation Ruiner
I get that e85 burns cooler, but e85 shouldn't effect IAT2 if its measuring air coming in. IAT2 doesn't account for fuel burning temp as far as I'm aware.
Good fuel or lack of it
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I get that e85 burns cooler, but e85 shouldn't effect IAT2 if its measuring air coming in. IAT2 doesn't account for fuel burning temp as far as I'm aware.
High on Ethanol
Just Ain't Care
Idk. It wasn't much higher with 93 but seems to average lower on e85. I'm thinking 93 was around 130ish idling and 20~ above ambient driving
GotGrip?
Conversation Ruiner
Btw, wasn't trying to start anything, was just genuinely curious!
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
Pretty sure Karen is trying to say the turbos don't get as hot and that brings down compressor outlet temp......
IAT2's on my ST run the same in regards to ambient air temp, regardless what fuel I run.
High on Ethanol
Just Ain't Care
All good. I bought an aftermarket intercooler because several tuners recommended it but im not sure how much gain I would actually see.
GotGrip?
Conversation Ruiner
>.>
High on Ethanol
Just Ain't Care
Is that with e54?
And with regards to ambient temp mine is usually between 70 and 100. Also very humid.
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
Also with E85. When I drive the ST to Ca they have E85. So 90% of the trip is on E85. I have a couple thousand miles worth of data in regards to fuel milage and IATs. There is no lower corrolation in ratio between cooler IATs at cruise speed (85 mph) on 91 octane and E85 in the ST. However, the stock IC is trash and not as effective as it should be.
I think the SHO would be a better candidate for this test. If I can run E54 with the new pump I will. Next CA run I will do some logging. I will drove out there on 91 and where IATs average. On the return trip I will run it back on E54 and see if they are lower. Since I will be there for a week, the trip out and return should see about the same ambient air temp and I usually average 88 to 90 mph all the way out there.
I also want to see data between the air temps and air density here in Phoenix and at sea level. That should be really interesting.
High on Ethanol
Just Ain't Care
I just realized something that I don't know how to monitor. I have grille shutters and intercooler shutters because of ford economy and condensation prevention. Would these possibly stay closed or open more with e85 vs 93? Would that maybe cause the changes?
GotGrip?
Conversation Ruiner
They shouldn't move based on fuel type but coolant/amb temp, they will open when needed, close when not based on previous mentioned parameters.
High on Ethanol
Just Ain't Care
SHO_Off420
SHO Member
Why not? If your turbos are cooler then the compressor outlet is going to be cooler which means the air going into your intercooler is colder, which means the air going into your intake is colder....
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
I would say that is your cause for your change. My shutters on my ST are disabled. They are open all the time.
With an educated guess, I would not think that running a different fuel will effect the turbine exhaust temp vs compressor outlet temp as much one would think in regards to IAT. Fuels do burn different, however in our case I think the change is nominal. I could be wrong.
Ambient air temp (ATA), water temp (ATW), or an obstruction would be the main factor for variances in IAT2.
Ecoboost_xsport
SHO Member
Damn, your so lucky you edited that to make more sense...I was in the middle of loading my meme canon....
SHO_Off420
SHO Member
Lol when I'm at work and don't have much time I tend to hit the send button a little to quickly, then I read it and im like oh shit I better fix that
High on Ethanol
Just Ain't Care
**** it. Send it
SHO_Off420
SHO Member
Lol i do sometimes. Again. E85 burns at like 700degrees and 91 burns at like 1500 degrees. Make your own decisions based of that
Ecoboost_xsport
SHO Member
This was me just loading that MF up....
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
I will be able to test this theory. Phoenix is stupid hot right now. I can see what the difference is between my IAT's on E54 and 91 octane in my ST.
Once this tank of E30 is gone (I filled up this morning) I will put a 1.5 gallons of 91 in the tank and run it down the freeway at 85 mph for 12 miles. Then I will go back and fill the tank with E54, and do the same thing.
IAT's should drop everything being equal in speed, atmospheric conditions, and ambient temp. Only thing that will be different is fuel.
GotGrip?
Conversation Ruiner
I see what your saying. But you exhaust temp will not drop to 700 degrees. Your exhaust temp will still be insanely high regardless of fuel used. You still have friction heat from turbines spinning and air still being compressed which will heat up, still have hot oil running though the turbo. You intake temp change would be negligable at best. But I would love to see sm do his thing and see real world results.
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