FLEX FUEL TUNE - ETA?

[ChitownStang]

I couldn’t make money as a tuner. I take too long and not good with customers.

I have been assisting a tuner that I’m hoping we can work out a something to get these background parameters right for flex tunes.

Please keep me informed with your progress as I’d be a customer for sure!
I take it you can’t tell me the tuner?

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[ChitownStang]

If you have an hpt file for these I’d love to see if they’re actually correctly configured. Locked or not doesn’t matter; I’ll get in.



While I agree with the sentiment of “you shouldn’t have to reflash to switch fuels”, I’ve reflashed mine literally thousands of times. I’ll pull over on the way to work and reflash sometimes if I’m testing something.



I’m not a betting man but I’d bet *they didn’t*. They just haven’t done enough validation testing to confirm it always works in every situation. Like I said, it took a while for them to figure out there was a problem with the gen3 flex tunes. It took me several full-tank-switches before I found the problem. It’s possible the fuel trims cover the difference for the initial tank but this has its own problems, obviously.

Can I get you the flex tune to read this off my TDN app?
Sold the car but still have the tune files and RTD +3 that I need to sell since it won't be compatible with DH.

 

[engineermike]

Has to be in .hpt format.

Update on the flex tuning - a file has been sent to a reputable tuner with the background changes made. He’s supposed to be testing this week.

 

[ChitownStang]

Has to be in .hpt format.

Update on the flex tuning - a file has been sent to a reputable tuner with the background changes made. He’s supposed to be testing this week.

AWESOME!!

 

[BleuStallion]

This is good to hear,thanks for the update

Has to be in .hpt format.

Update on the flex tuning - a file has been sent to a reputable tuner with the background changes made. He’s supposed to be testing this week.

 

[engineermike]

 

[Joe_Stang]

Thats awesome, good to know their isn't much gains to be had by going full e85 vs like e45. I have e85 close to me but who knows the true ethanol content of it.

 

[ChitownStang]

So I have never heard of DRP, have they been around for a while?

 

[engineermike]

So I have never heard of DRP, have they been around for a while?

A few years. He was big on the diesel scene until the emissions crackdowns, then grew the gas side of his business.

 

[ChitownStang]

A few years. He was big on the diesel scene until the emissions crackdowns, then grew the gas side of his business.

Cool. And his flex tune is different than others like palm beach , etc?

 

[engineermike]

Cool. And his flex tune is different than others like palm beach , etc?

Did you catch what he said at 31:15?

 

[Zig]

Only question: “Out came the E90, in went the special mixture, and up went the dyno numbers once more. The peak increased to 440 whp, up 30 from the stock baseline pulls with nothing more than removing the intake restriction and a hotter fuel in the tank.”

https://www.hotrod.com/how-to/2650-mustang-jpc-racing-part-1-modifications

“Sep 08, 2023” - pretuning

 

[ben1]

Only question: “Out came the E90, in went the special mixture, and up went the dyno numbers once more. The peak increased to 440 whp, up 30 from the stock baseline pulls with nothing more than removing the intake restriction and a hotter fuel in the tank.”

https://www.hotrod.com/how-to/2650-mustang-jpc-racing-part-1-modifications

“Sep 08, 2023” - pretuning

I love reading articles that only focus on the positives. I'm sure leaving out the fact that the check engine light came on with codes P0171 & P0174 was just an oversight. And if it ran leaner because the ECU probably stopped adding extra fuel after the long term fuel trims hit 30% probably helped it make even more power!

 

[Zig]

I love reading articles that only focus on the positives. I'm sure leaving out the fact that the check engine light came on with codes P0171 & P0174 was just an oversight. And if it ran leaner because the ECU probably stopped adding extra fuel after the long term fuel trims hit 30% probably helped it make even more power!

By chance do you have the details of those runs?

 

[ChitownStang]

So far so good with the new flex tune!
Ray (DRP owner) is so great to work with. Super fast to respond and responses are not super vague like I’ve had with other tuners in past.
Had my RTD4 in couple days , sent him factory file last night and had the tune this morning in time for me to load it at lunch.
I had 1/4 tank of ~e20-25 in the tank. First test drive I noticed the A/F was at 12.5-13 when it normally is at ~14 on stock tune even with e30 in tank so the flex is working for sure.
Car definitely pulled harder, noticeable. So I can’t wait to try higher Ethenol soon.
One thing I noticed and talked with him about is that throttle response seemed similar to stock. He says he can change that in the tune if I want.
I already had a Soler performance throttle controller which I turned back up to remedy this.
I may just keep that in place and not have him mess with tune.
I like having full control on the fly with that device.
I data logged once and had response in an hour.
I’m very happy and highly recommend DRP Motorsports.
The Flex is super convenient and Ray has it figured out.
I will update once filled up on E70, maybe tonight.

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