Why did you leave lund?

[Swtbabybilly]

ive been on this forum for alittle bit now and thru that time have seen alot of people going with other tuners then lund and a lot of them where once with lund. I was hoping i could hear from people that where once tuned by lund and what it was that made them decide to go someplace else, was it something they didnt offer, how the car ran, service, or anything else? Appreciate any feedback back thanks ahead of time

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[Zrussian13]

Technically I'm still tuned by Lund but have every intention of using a new tuner when I finally decide to throw a fuel system at my gt. My reason is I want a tuner that will work with the set up i want, not tell me what parts I have to use because it's easier on them.

 

[Swtbabybilly]

Technically I'm still tuned by Lund but have every intention of using a new tuner when I finally decide to throw a fuel system at my gt. My reason is I want a tuner that will work with the set up i want, not tell me what parts I have to use because it's easier on them.

Thanks I appreciate it, that is 1 of the issues I had in my head because e85 isn't really available by me the way I wish it was so I would love a flex tune but they dont offer it

 

[Zrussian13]

Thanks I appreciate it, that is 1 of the issues I had in my head because e85 isn't really available by me the way I wish it was so I would love a flex tune but they dont offer it

I have an old flex tune from lund from before they stopped offering it. Only used it for road trips mostly but it worked well. I dint really get why they stopped offering it? Ive never saw anyone coming on here saying their flex tune caused an engine issue.

 

[EchoFiveR3531]

I have an old flex tune from lund from before they stopped offering it. Only used it for road trips mostly but it worked well. I dint really get why they stopped offering it? Ive never saw anyone coming on here saying their flex tune caused an engine issue.

From the little bit I've read on Flex tuning it wasn't real time flex. It was based on reading the O2 sensor to determine E85 content which introduces more margin for error.

Real time flex has a sensor in your fuel rail that can can be used to adjust for E content in real time. I know PCMTEC supports this.

I'm sure someone with a much deeper knowledge base will be along shortly. After all I'm just an average knuckle dragging ape with a basic understanding!

Edit: I found the video for the PCMTEC solution.

 

[Swtbabybilly]

I have an old flex tune from lund from before they stopped offering it. Only used it for road trips mostly but it worked well. I dint really get why they stopped offering it? Ive never saw anyone coming on here saying their flex tune caused an engine issue.

Thats exactly why I wanted it just so I could still take the car on road trips and not worry about finding E

 

[robvas]

Didn't leave Lund

From the little bit I've read on Flex tuning it wasn't real time flex. It was based on reading the O2 sensor to determine E85 content which introduces more margin for error.

Real time flex has a sensor in your fuel rail that can can be used to adjust for E content in real time. I know PCMTEC supports this.

I'm sure someone with a much deeper knowledge base will be along shortly. After all I'm just an average knuckle dragging ape with a basic understanding!

Edit: I found the video for the PCMTEC solution.

Most tuners use inferred

 

[EchoFiveR3531]

Didn't leave Lund

Most tuners use inferred

Makes sense, it's simpler and more cost effective and I'm sure the margin for error is acceptable.

 

[wingnutt]

I had a three paragraph response, but can boil it down to one sentence…

…I got better service elsewhere

 

[JuniorN]

I have an old flex tune from lund from before they stopped offering it. Only used it for road trips mostly but it worked well. I dint really get why they stopped offering it? Ive never saw anyone coming on here saying their flex tune caused an engine issue.

 

[NGOT8R]

I was tuned with Lund from the very beginning with a FBO setup and nitrous, with 93, flex and E85. When I decided to go turbo, Lund wouldn’t support the fuel system components that I chose, so I’ll have to find a new tuner when the time comes. They did do a fantastic job for me on the aforementioned tunes though.

Not sure what mods you have, but as far as fuel systems, Lund prefers Fore Innovations and Injector Dynamics and some FIC injectors.

 

[engineermike]

For Gen3, I believe Lund didn't have access and/or didn't know how to make flex work right in the Mustangs due to missing parameters in hpt. The video above is a load of baloney. He seems to a) have lots of air leaks and b) doesn't understand how the OEM diagnostics and learning routine really works. Ford was pretty smart about it and air leaks can't cause ethanol learning problems in all but the most remote obscure situations.

 

[5.0_Lojos]

Along the lines of road trip, e85 fuel and tuning - typically a tuner will provide a pump tune and an e85 tune. Assuming you are going on a trip cant you just drive the e85 fuel as low as possible, fill with pump 93 and load the pump tune and try to keep the car out of boost till it relearns the new fuel, maybe after 1 or 2 pump fill ups? I would think as long as you are not getting on it you should be OK?

 

[engineermike]

Along the lines of road trip, e85 fuel and tuning - typically a tuner will provide a pump tune and an e85 tune. Assuming you are going on a trip cant you just drive the e85 fuel as low as possible, fill with pump 93 and load the pump tune and try to keep the car out of boost till it relearns the new fuel, maybe after 1 or 2 pump fill ups? I would think as long as you are not getting on it you should be OK?

A proper flex setup will learn the new fuel within the first 10 minutes of driving after a fuel switch. As a side note, my buddy reflashed his car which cleared the KAM. He was on my flex tune with E85 in the tank. He didn't realize the KAM had reset and the learned ethanol was sitting at 9.8%, and went WOT. We were both surprised to see that the STFTs kept lambda in a safe range and nothing bad happened. I wouldn't recommend doing this, and especially not the other way around.

 

[5.0_Lojos]

But assuming you have a road trip planned and you will be driving normal (hard to do im sure especially boosted) you keep everything tamed and switch to 93 one should be ok? I dont think I have a flex tune only a dedicated 93/ and an e85.

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