Help me understand flex fuel tunes

[sms2022]

Thanks. It's actually the stock setup with 20mm spacers on all 4 wheels with Michelin pilot sport 4s tires. The spacers seem to push the tire out enough that it fills in the wheel wells more.

did you have the change out the studs? If not I’ll order some spacers right now, looks great and much cheaper than springs and wheels and tires.

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[Magnetic Stang]

did you have the change out the studs? If not I’ll order some spacers right now, looks great and much cheaper than springs and wheels and tires.

Now that you say that, I do remember I had to go with 25mm in the front and 20mm in the rear because of the front studs. 20mm wouldn't work. The front studs are longer on magneride cars I believe. This is the style I bought.

 

[sms2022]

Now that you say that, I do remember I had to go with 25mm in the front and 20mm in the rear because of the front studs. 20mm wouldn't work. The front studs are longer on magneride cars I believe. This is the style I bought.

Got it. I don’t have magneride so I’m going to roll the dice on the 20mm

 

[shogun32]

did you have the change out the studs?

of course he did.
Otherwise we would ride him/you mercilessly for "doing it wrong(tm)".

The extra long studs are god's gift to Mustang'dom. Slip-n spacers on the front. Dial https://www.opmustang.com/store/c6/2015-2023_Ford_Mustang_Products_S550.html#/ stat.

 

[ChitownStang]

He's talking about cars with boost. Not N/A cars.
How are you not running E all the time?? 93 just makes me sad now.

I wish I could, it’s so much faster!
For one, it’s starts like shit in the cold Chicago winter and 2 , it’s too torquey for the cold pavement., 3 I like to clean out the ethanol in the fuel lines so it doesn’t gum shit up.

 

[ChitownStang]

You have a blower car?

Sorry, didn’t realize that.
No blower for me, I’d be in jail. Lol

 

[sms2022]

Wengerd sounds like they will be able to help do a true sensor based flex tune for 93/e85. Will keep this thread updated.

 

[Rolls]

So how is Livernois doing the Flex tune with no issues. They say completely safe and 50 state legal.
I’ve run it for 1.5 years now with 0 issues and I change fuel from summer to winter and winter to summer .
Per their instructions, When I fill up, I just drive the car nicely for first 15 min and don’t sit at idle.
Do they have the secret sauce?
I know they work closely with Ford

It's doable the issues are usually user/driver error.

Lund tune a lot of cars and don't want the negativity when someone fills up there 800hp car, ignores the instructions, flogs it immediately out the gas station and it locks on the wrong content making things go bang.

User adjustable flex is much simpler, set and forget, no worrying about it locking on the wrong content.

 

[sms2022]

Well apparently wengerd doesn’t do sensor based flex and lund offers user adjustable flex but not automatic sensor based flex.

if anyone knows a tuner who offers true automatic sensor based flex let me know.

 

[engineermike]

Seems self-tuners are ahead of the big names on this one. Won’t be the first time…

 

[Cordero1]

So PCMtec offers the sensor for a true flex tune but you'd have to tune it yourself?

 

[engineermike]

So PCMtec offers the sensor for a true flex tune but you'd have to tune it yourself?

Pcmtec offers software only. You source the sensor and even the dongle elsewhere.

 

[mejohn50]

So PCMtec offers the sensor for a true flex tune but you'd have to tune it yourself?

That’s not necessarily the case. Like @engineermike said, PCMTEC supplies the tuning software and the end user needs to supply the flex fuel hardware (I would expect to see plug and play kits hit the market soon).

To find a tuner that offers tuning for it you need to contact the tuner(s) of your choice to see if they are offering it yet. It appears that right now the big name tuners aren’t publicly offering it yet, which is why Mike said what he said about self-tuners. Though I do know some of the big name tuners are working on it.

I’ve been working on the PCMTEC sensor-based flex fuel on my car since last fall and I’ve been helping a couple others get it set up and tuned.

If anyone is interested in what components are required and how I set the hardware up, just shoot me a DM.

 

[sms2022]

That’s not necessarily the case. Like @engineermike said, PCMTEC supplies the tuning software and the end user needs to supply the flex fuel hardware (I would expect to see plug and play kits hit the market soon).

To find a tuner that offers tuning for it you need to contact the tuner(s) of your choice to see if they are offering it yet. It appears that right now the big name tuners aren’t publicly offering it yet, which is why Mike said what he said about self-tuners. Though I do know some of the big name tuners are working on it.

I’ve been working on the PCMTEC sensor-based flex fuel on my car since last fall and I’ve been helping a couple others get it set up and tuned.

If anyone is interested in what components are required and how I set the hardware up, just shoot me a DM.

shoemaker is apparently developing a system using pcm tec.

how do you like the sensor based flex as opposed to user set or wideband flex? Seems like a much better concept to me.

 

[mejohn50]

shoemaker is apparently developing a system using pcm tec.

how do you like the sensor based flex as opposed to user set or wideband flex? Seems like a much better concept to me.

I’ve done all of the methods at one point or another. I’m all in on the sensor-based flex fuel at this point. It’s been working well so far, but I’m not even close to done setting it up how I want.

With that said, I had no issues with the OEM inferred flex fuel on a boosted gen 3. I just felt like that required a lot more attention to make sure it works right and more opportunities for something to go wrong than the sensor system.

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