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Flex Fuel for Global B

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Old Jul 15, 2023 | 12:11 AM
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Default Flex Fuel for Global B

DSX announced their Flex Fuel kit for the E99 ECM’s.
But it’s only available through authorized resellers.

https://fb.watch/lNRetHr0uB/?mibextid=cr9u03
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Old Jul 17, 2023 | 08:39 AM
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I have a feeling nobody really understands what it took. 😂
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Old Jul 17, 2023 | 11:20 AM
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Originally Posted by DSteck
I have a feeling nobody really understands what it took. 😂
Is it a plug and play setup like the C7? Is it tunable using HPT?
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Old Jul 20, 2023 | 08:50 AM
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Originally Posted by 7LitreC5
Is it a plug and play setup like the C7? Is it tunable using HPT?
Yes, it is plug and play (requires a tune to activate, and I have to edit the file).
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Old Jul 20, 2023 | 08:58 AM
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Originally Posted by DSteck
Yes, it is plug and play (requires a tune to activate, and I have to edit the file).
Great. Thanks for the additional info.
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Old Jul 28, 2023 | 07:54 AM
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Originally Posted by DSteck
Yes, it is plug and play (requires a tune to activate, and I have to edit the file).
Flex Fuel is going to be expensive by itself. $1500 to unlock the ECM. $400 for credits. $400 for the MPV13. Most owners will likely have tuning and dyno time costs. Plus the cost of the flex fuel sensor and installation. Certainly makes more sense to add in flex fuel as part of a bigger build than just by itself.

Do we know if the stock Stingray fuel system can handle full e85? If it can't, then fuel upgrade is going to be another expense.
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Old Jul 29, 2023 | 11:11 AM
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Originally Posted by hawk02
Flex Fuel is going to be expensive by itself. $1500 to unlock the ECM. $400 for credits. $400 for the MPV13. Most owners will likely have tuning and dyno time costs. Plus the cost of the flex fuel sensor and installation. Certainly makes more sense to add in flex fuel as part of a bigger build than just by itself.

Do we know if the stock Stingray fuel system can handle full e85? If it can't, then fuel upgrade is going to be another expense.
My Stingray, albeit stock, is running full pump E without issue.
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Old Jul 29, 2023 | 11:28 AM
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Originally Posted by DSteck
My Stingray, albeit stock, is running full pump E without issue.
Just to clarify, you're referring to the fuel system is stock.
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Old Jul 29, 2023 | 11:30 AM
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Originally Posted by hawk02
Just to clarify, you're referring to the fuel system is stock.
The car is stock other than me converting it to run with a flex sensor.
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Old Jul 29, 2023 | 12:01 PM
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Originally Posted by DSteck
The car is stock other than me converting it to run with a flex sensor.
So you did have to send your ECU to HP Tuners to unlock and also purchase credits and the MPV13 unit.

I know you do tuning professionally so I assume your out-of-pocket expense was way less than that for most C8 owners.
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Old Jul 29, 2023 | 12:06 PM
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Originally Posted by hawk02
So you did have to send your ECU to HP Tuners to unlock and also purchase credits and the MPV13 unit.

I know you do tuning professionally so I assume your out-of-pocket expense was way less than that for most C8 owners.
Correct on all accounts except I already own a MPVI3. Retail is $1500 for unlock and $400 for credits. I don’t sell my flex stuff to end users, so anyone wanting the functionality has to go through an authorized reseller.

Unfortunately this is the way it is now. The industry got a taste with the C7 ZR1 unlocks and E90 trucks.
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Old Jul 30, 2023 | 03:59 PM
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Originally Posted by DSteck
Correct on all accounts except I already own a MPVI3. Retail is $1500 for unlock and $400 for credits. I don’t sell my flex stuff to end users, so anyone wanting the functionality has to go through an authorized reseller.

Unfortunately this is the way it is now. The industry got a taste with the C7 ZR1 unlocks and E90 trucks.
Have you had an opportunity to make a pass at the dragstrip? I'm curious as to what improvements it had on et's and mph.
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Old Jul 30, 2023 | 10:37 PM
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Originally Posted by NonZ51Mark
Have you had an opportunity to make a pass at the dragstrip? I'm curious as to what improvements it had on et's and mph.
No, and I won’t. I’ll dyno the car on my Mainline once I tune it and show the difference between 93 and pump ethanol on the same tune, but I’ve got zero interest in taking this car to a drag strip.
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Old Nov 28, 2023 | 03:52 PM
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It's too bad that that none of the big, reputable shops in my area are "authorized resellers" and DSX won't make it available to them even though they have been around 20+ years and are Global B authorized by HP Tuners.
DSX shows one shop in the town I live in on their list, but I have never heard of them and I'm not going to take my car there since one of the other shops is doing the engine swap/tuning.

Hopefully someone else will come out with a solution in the future and actually make it available to those who want it.
Who cares if they have a solution if you can't get it or have to ship your car off somewhere just to get a flex setup.
Pretty lame.......

Last edited by MCK_Z06; Nov 28, 2023 at 05:33 PM.
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Old Nov 28, 2023 | 04:00 PM
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Originally Posted by MCK_Z06
It's too bad that that none of the big, reputable shops in my area are "authorized resellers" and DSX won't make it available to them even though they have been around 20+ years and are Global B authorized by HP Tunners.
DSX shows one shop in the town I live in on their list, but I have never heard of them and I'm not going to take my car there since one of the other shops is doing the engine swap/tunning.

Hopefully someone else will come out with a solution in the future and actually make it available to those who want it.
Who cares if they have a solution if you can't get it or have to ship your car off somewhere just to get a flex setup.
Pretty lame.......
https://dsxtuning.com/pages/global-b

Looks like there's two in the DFW-area. I'm not sure if AMP is doing anything C8-related yet, but I know a few members that have gone up to ARS recently for C8 intake/exhaust work. I'll be curious to hear if/when 21st and/or LG start the C8 E85 tuning.
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Old Nov 28, 2023 | 05:22 PM
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Originally Posted by Kracka
https://dsxtuning.com/pages/global-b

Looks like there's two in the DFW-area. I'm not sure if AMP is doing anything C8-related yet, but I know a few members that have gone up to ARS recently for C8 intake/exhaust work. I'll be curious to hear if/when 21st and/or LG start the C8 E85 tuning.
21st CMC and LG are both of the shops I alluded to. I have used both over the past 20 years and they both stated that DSX will not sell to them for Global B flex fuel stuff for some reason.

I'm doing a high compression LME LT2 N/A stroker engine that 21st CMC is installing and tuning but I'm not going to take my car to another shop afterwards and have it tuned again just to run E85. Thats just stupid.
I know AMP is well respected, but they are far away from me and there is a shop listed in McKinney where I live but I have never heard of them or heard of anyone in the area ever mention them.

Last edited by MCK_Z06; Nov 28, 2023 at 05:33 PM.
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Old Nov 29, 2023 | 08:13 AM
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Originally Posted by MCK_Z06
It's too bad that that none of the big, reputable shops in my area are "authorized resellers" and DSX won't make it available to them even though they have been around 20+ years and are Global B authorized by HP Tuners.
DSX shows one shop in the town I live in on their list, but I have never heard of them and I'm not going to take my car there since one of the other shops is doing the engine swap/tuning.

Hopefully someone else will come out with a solution in the future and actually make it available to those who want it.
Who cares if they have a solution if you can't get it or have to ship your car off somewhere just to get a flex setup.
Pretty lame.......
Originally Posted by MCK_Z06
21st CMC and LG are both of the shops I alluded to. I have used both over the past 20 years and they both stated that DSX will not sell to them for Global B flex fuel stuff for some reason.

I'm doing a high compression LME LT2 N/A stroker engine that 21st CMC is installing and tuning but I'm not going to take my car to another shop afterwards and have it tuned again just to run E85. Thats just stupid.
I know AMP is well respected, but they are far away from me and there is a shop listed in McKinney where I live but I have never heard of them or heard of anyone in the area ever mention them.
Well, maybe you can put in the work and then distribute it as you see fit.

Anybody who wants to sell it has to sign a NDA and then also complete a buy in. Every shop has to apply. I don't have any record of correspondence from LG about participating, and I don't believe they are even HPT resellers let alone on HPT's Global B list. 21st CMC did contact me, but they are not actually on HPT's list and go through Alex Peitz for unlocks and tuning (who hasn't opted to participate in the NDA). I've spent the last 15 years watching anything and everything I do get copied and resold out from under me at a lower price, so yea, I'm protecting this one given what was required to figure it out.

Last edited by DSteck; Nov 29, 2023 at 08:22 AM.
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Old Nov 29, 2023 | 01:22 PM
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Makes sense with the additional context.
I would not expect you (or anyone else) to give away your R&D work for free. I'm all for people getting paid for their time and effort, that's how it's supposed to work.
As an engineering consultant we make everyone sign an NDA as soon as they sign off on the SOW even before the final contracts are signed, so I totally understand this as well.

If I wanted to put in the work to figure it out myself, I would not be here complaining that a solution is not readily available to everyone who wanted it.
I just want to pay someone I trust to do it for me and not jump through too many hoops to do so.
Though it does seem weird that with the popularity of this platform that only one person has bothered to figure it out.
There must not be the demand that I thought there was for this option after all.

Thanks for the response/clarification.
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Old Nov 29, 2023 | 04:47 PM
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@DSteck Is is possible to buy the hardware part and get the tune done by an authorized vendor later? I am doing a bunch of mods at once including changes to some of the fuel lines so I would like to have the car 100 percent ready to go for the tuner.
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Old Nov 29, 2023 | 06:56 PM
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Originally Posted by Mikeki7
@DSteck Is is possible to buy the hardware part and get the tune done by an authorized vendor later? I am doing a bunch of mods at once including changes to some of the fuel lines so I would like to have the car 100 percent ready to go for the tuner.
You can put a sensor in your system somewhere, and then deal with the rest later. You'll just need to go through an authorized reseller. There's nothing special about the sensors we use; they're GM sensors.
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