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Old 05-23-2019, 07:57 PM   #26
Rexy18
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Quote:
Someone explain to me how Full Time Closed Loops is a safety measure?
Open loop value for afr is set and thats what it stays during wot. Wrong gas, bye bye engine.
Closed loop allows for input from cars sensors, like oxygen sensors chasing lambda and perfect burn, wrong fuel and oxygen sensor among others will pick up differnece and correct requested value. So thats that unless there is a closed loop that i dont know about.

Open loop no input from car. Closed loop allows for car input/adjustments, hence safety mechanism. What’s so confusing.
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Old 05-23-2019, 08:43 PM   #27
GlarryHoodDIT
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In regards to pump gas yes, but I'm asking about in regards to ethanol content (if you had quoted the whole post this would be obvious). How does forcing a car at a lower octane rating to run leaner AFR than it is meant to qualify as a safety feature?

An E30 tune targets (generally) about 12.5:1 or a lambda of .85.

An E15 tune targets (generally) about 11-11.5:1 or a lambda of .75-.78.

How does forcing a car that has E15 into a leaner AFR/Lambda qualify as a safety feature? Forcing an E15 tune to run 12.5:1 (.85 lmabda) will cause excessive knock and could potentially throw rods through blocks.

Theres a reason the guy selling the tunes makes it clear having the right e content is paramount or the car will blow up. FTCL isnt gonna save anything with this scenario.

Try again Stij.
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Old 05-23-2019, 08:49 PM   #28
Rexy18
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So does oxygen sensor work and have any input in this closed loop of yours? Is it a closed loop or not? Do sensors have input or not, cuz if they dont then you are in open loop by definition.

So which is it? It doesnt matter whether its e or gas, oxygen sensor doesnt know which fuel just how it burns.

There is no forcing in closes loop, you can request but being closed loop allows for adjusting of your request. Im tuned but my af corrections happen not cuz of my tuners request but because its in closed loop unlike open loop.

Last edited by Rexy18; 05-24-2019 at 07:09 PM. Reason: Fixed
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Old 05-23-2019, 09:00 PM   #29
GlarryHoodDIT
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Your responses are absolutely mind boggling. It's like arguing with a wall, a dumb one at that.
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Old 05-23-2019, 09:00 PM   #30
Rexy18
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Im not saying that one can freely run different blend than tuned for.

Just trying to explain why ftcl tuning has a small safety net due to built in automotive safeties/sensors making small adjustments. There is only so much wiggle room though.

Dumb as a wall yet able to differentiate between closed and open loop, freak of nature. Shouldnt ask dumb questions my man. Perhaps ask google first.
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Old 05-23-2019, 10:33 PM   #31
GlarryHoodDIT
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You think your engine is throwing AF correction in Open Loop, "Im tuned but my af corrections happen not cuz of my tuners request but because its open loop."

YOU are the one who doesn't understand the difference here.

But hey, I think forum-wide we can agree with you that you are "dumb as a wall."
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Old 05-23-2019, 10:57 PM   #32
Rexy18
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Lol.

Focus on an error when you got nothing else. Is my spelling good?
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Old 05-24-2019, 03:25 PM   #33
adam99
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Quote:
Originally Posted by Rexy18 View Post
Lol.

Focus on an error when you got nothing else. Is my spelling good?
Talking down to someone/ acting like you know everything and then getting one of the most basic tuning concepts wrong You need to shutup and listen to people and you may just learn something after all
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Old 05-24-2019, 05:43 PM   #34
Straight6
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Can we for once keep this civil and E30 related ? Please.
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Old 05-26-2019, 10:45 AM   #35
gn4rwhals
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Buy a flex fuel kit.

/thread
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Old 05-26-2019, 11:54 AM   #36
Straight6
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Originally Posted by gn4rwhals View Post
Buy a flex fuel kit.

/thread
Not that simple. A FF kit with a tune will run me 1,500 dollars plus. This tune...150 bucks. I don't plan on going farther than the E30 mix and it is about 45 minute drive to my nearest E85 station. I don't plan on running E30 mix more than few times a year. I already have a phenomenal 93 tune that I daily. I am just looking for an occasional fun tune.
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Old 05-26-2019, 12:08 PM   #37
Rexy18
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Bren tune flex fuel for 500 and clark for 400$. Flex kits can be had for 320-350$ on ebay or fb so thats half of what you quoted. Still expensive for minimal gains if you're stg2 93oct.

Otherwise for 150$ you can get an ots e30 tune and guess what your tank e level is, then monitor corrections to add 93 or e85 respectively. People do it all the time, but its just way easier to do it properly with a flex kit once.

Last edited by Rexy18; 05-26-2019 at 12:41 PM.
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