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Old 07-25-2016, 11:51 PM   #376
WhatTurboLag?
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What do you guys do for the flex fuel sensor for big fuel system guys? Since it Seems the biggest sensor is -6, are you limited to a -6 it could I say run a -8 Y to 2 -6 lines and Y to a -8
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Old 07-26-2016, 12:00 PM   #377
STiSomeday
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Originally Posted by WhatTurboLag? View Post
What do you guys do for the flex fuel sensor for big fuel system guys? Since it Seems the biggest sensor is -6, are you limited to a -6 it could I say run a -8 Y to 2 -6 lines and Y to a -8
Since it's on the return side, I don't see any reason you couldn't branch off with a -6 fitting, go to the sensor, then tie it back in if you're running a -8 or -10 return.
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Old 08-12-2016, 10:04 PM   #378
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Any updates?
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Old 08-13-2016, 12:04 PM   #379
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Any updates?
+1
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Old 08-15-2016, 07:09 PM   #380
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Originally Posted by schwag wagon View Post
Wellllllll, looks like Delicious just dropped their Flex kit for AccessPort for 2015+ WRX's. Looks like I won't be waiting for Cobb after all.
You might want to talk to a tuner to see how they feel about that. A while back my tuner mentioned something about this kit leaving out some important parameters that he would not recommend.
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Old 09-15-2016, 12:53 PM   #381
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You might want to talk to a tuner to see how they feel about that. A while back my tuner mentioned something about this kit leaving out some important parameters that he would not recommend.
Yeah, not to bad mouth them, but they can't offer the same level of integration that Cobb does, if for no other reason, because Cobb created the AccessPort. Additionally, in order to get a tune from them, you have to use a 'Delicious authorized' tuner, which basically means your tuning options are going to be limited, and most likely expensive. If you notice, most of their monitoring stuff is done via Android; this is because the AP is a proprietary, closed source system, which does not allow them to add monitors to it. This being the case, do you really feel like adding yet another proprietary black box to your car, which can't even interact with the first one entirely, is a good idea? Oh, and you may want to call Cobb and verify that it's actually confirmed by them as being compatible with the AccessPort (pretty sure I heard from a little birdie that it is not).
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Old 09-15-2016, 01:32 PM   #382
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Quote:
Originally Posted by Trae32566 View Post
Yeah, not to bad mouth them, but they can't offer the same level of integration that Cobb does, if for no other reason, because Cobb created the AccessPort. Additionally, in order to get a tune from them, you have to use a 'Delicious authorized' tuner, which basically means your tuning options are going to be limited, and most likely expensive. If you notice, most of their monitoring stuff is done via Android; this is because the AP is a proprietary, closed source system, which does not allow them to add monitors to it. This being the case, do you really feel like adding yet another proprietary black box to your car, which can't even interact with the first one entirely, is a good idea? Oh, and you may want to call Cobb and verify that it's actually confirmed by them as being compatible with the AccessPort (pretty sure I heard from a little birdie that it is not).
finally someone said it.. i agree ^^^
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Old 09-15-2016, 03:22 PM   #383
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Originally Posted by psyclobe View Post
A birdy told me today that cobb flex fuel for the FA20 is out in some manner to select dealers.
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Originally Posted by ColtonEckert View Post
"1. (Dec 2015) 08-16 STi and 08-14 WRX (manual transmission only)
2. (Early 2016) 15-16 WRX (6MT and likely CVT)
3. (1st quarter 2016) 04-07 STi and 06-07 WRX (manual transmission only)"

So is there a new ETA on the GD?
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Originally Posted by ColtonEckert View Post
Any updates?
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Originally Posted by boostingwrx12 View Post
+1
Phew, it's been a while. My bad for not updating this thread!

Our DIT Flex Fuel implementation is currently being tested on internal vehicles only. Yes, it's real and it works - we are on the home stretch. The updated timeline puts DIT Flex Fuel out within the next month followed shortly by GD Flex Fuel.

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Old 09-15-2016, 04:00 PM   #384
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How's the hpfp holding up in your testing? Are you going to recommend fuel treatment additives to combat any issues?
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Old 09-15-2016, 04:16 PM   #385
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How's the hpfp holding up in your testing? Are you going to recommend fuel treatment additives to combat any issues?
Not well. We have had two pumps fail with less than a full tank of straight E85 run through them. That said, we also have one car that has taken up to 5 straight tanks of E85 without issue.

Upon release, we will strongly encourage a blend with normal pump fuel in order to give the HPFP a fighting chance. The problem with some additives is they can affect how ethanol content is determined. Depending on how they are composed, additives may cause the ethanol content sensor to go into an error state as some include components with a relative permittivity well beyond that of Ethanol.

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Old 09-15-2016, 04:22 PM   #386
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Originally Posted by Cobb Tuning View Post
Not well. We have had two pumps fail with less than a full tank of straight E85 run through them. That said, we also have one car that has taken up to 5 straight tanks of E85 without issue.

Upon release, we will strongly encourage a blend with normal pump fuel in order to give the HPFP a fighting chance. The problem with some additives is they can affect how ethanol content is determined. Depending on how they are composed, additives may cause the ethanol content sensor to go into an error state as some include components with a relative permittivity well beyond that of Ethanol.

Marshall@COBB
I planned on running a blend anyway so that works out fine. Can't wait for it to actually be out.

Any idea of the max e % we should stay below? Somebody on here was running e85 and was having the hpfp issues. switched to e70 and said the problems completely disappeared.
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Old 09-15-2016, 04:47 PM   #387
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Let's just forget about the woes of DIT HPFP's failing and move to something we know will work - GD FF support
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Old 09-16-2016, 04:58 AM   #388
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Out of curiosity, do you believe that there is a significant chance of a manufacturer releasing an upgraded pump? From the reading I've done, it looks like the precision required is prohibitively expensive, and given that (at least from what I saw) the Subaru pump is different than others, I can understand how the R&D costs would outweigh the benefits. Is there any chance that the manufacturer for Subaru (anyone know who, I can't seem to find info, but I would guess Bosch or Carter) would be amenable to such a thing, given that they've already designed and tested the part? Obviously there would be changes required (duh), but I would think they would have a huge upper hand, since the majority of the R&D work is already done. Has anyone actually tried contacting them? Maybe I'm crazy, but I don't think contacting them is going to hurt anything, at the worst, they'll tell you to go forth and multiply.
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Old 09-16-2016, 11:31 AM   #389
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Quote:
Originally Posted by STiSomeday View Post
Let's just forget about the woes of DIT HPFP's failing and move to something we know will work - GD FF support
I'm with this guy!

Quote:
Originally Posted by Trae32566 View Post
Out of curiosity, do you believe that there is a significant chance of a manufacturer releasing an upgraded pump? From the reading I've done, it looks like the precision required is prohibitively expensive, and given that (at least from what I saw) the Subaru pump is different than others, I can understand how the R&D costs would outweigh the benefits. Is there any chance that the manufacturer for Subaru (anyone know who, I can't seem to find info, but I would guess Bosch or Carter) would be amenable to such a thing, given that they've already designed and tested the part? Obviously there would be changes required (duh), but I would think they would have a huge upper hand, since the majority of the R&D work is already done. Has anyone actually tried contacting them? Maybe I'm crazy, but I don't think contacting them is going to hurt anything, at the worst, they'll tell you to go forth and multiply.
I know the BMW guys are still trying to figure out a solid way to run 100% ethanol and are still limited by their HPFP and they've had direct port fuel injection since 2007. They also run a blend with pump gas. I did speak with a guy I bumped into at a carshow a from a shop (a few years ago, can't remember which) who had a 335i that was making big power and he had an additional set of injectors installed in the intake manifold allowing him to run a more typical fuel set-up.
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Old 09-16-2016, 06:48 PM   #390
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Hi Cobb, could we a sneak peak picture of the setup?
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Old 09-20-2016, 09:42 AM   #391
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Hi Cobb, could we a sneak peak picture of the setup?
I don't see any issues with that! The below pictures were taking of our shop 2015 WRX. While this isn't a true 'production kit', the end result should be very close.


As you can see, the brain/module will likely mount in a very similar area to the already released STI kit.


The ethanol sensor itself is located underneath the fuse box, just behind the battery.

Marshall@COBB
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Old 09-20-2016, 10:23 AM   #392
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Hey Cobb - can you say anything about what specific GD models will be getting FlexFuel love? I heard the 04 STi ECU is a bit limited.... also, what about 06-07 WRX? THANKS!!!
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Old 09-20-2016, 02:08 PM   #393
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Hey Cobb - can you say anything about what specific GD models will be getting FlexFuel love? I heard the 04 STi ECU is a bit limited.... also, what about 06-07 WRX? THANKS!!!

05-07 sti 06-07 wrx
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Old 09-20-2016, 04:11 PM   #394
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Thanks for the photos Cobb, I like how it still makes the car look stock. Def cant wait for this to come out...
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Old 09-21-2016, 02:05 PM   #395
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So ready for GD flex fuel!!

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Old 09-21-2016, 03:45 PM   #396
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Last edited by STiSomeday; 09-21-2016 at 03:59 PM.
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Old 09-21-2016, 06:47 PM   #397
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Quote:
Originally Posted by Cobb Tuning View Post
I don't see any issues with that! The below pictures were taking of our shop 2015 WRX. While this isn't a true 'production kit', the end result should be very close.


As you can see, the brain/module will likely mount in a very similar area to the already released STI kit.


The ethanol sensor itself is located underneath the fuse box, just behind the battery.

Marshall@COBB
Awesome Marshall!

I actually wouldn't mind mounting it exactly like the way you have in the pictures to avoid hitting my front mount intercooler piping.

Can't wait to be able to run a blend of ethanol and also have the safety DTCs I've heard about that you guys incorporated!

Dave
PRL Motorsports

Last edited by baseballdbk1; 09-22-2016 at 12:24 AM.
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Old 09-22-2016, 03:33 AM   #398
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I'm dying to hear more about this GD FF Kit as well. Us 32Bit bastards are waiting!!!

Peace
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Old 09-25-2016, 03:33 PM   #399
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Hey Cobb, if we already have a zeitronix ethanol content analyzer, can it be wired into the cobb flex fuel setup?
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Old 09-26-2016, 02:14 PM   #400
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Originally Posted by psyclobe View Post
Hey Cobb, if we already have a zeitronix ethanol content analyzer, can it be wired into the cobb flex fuel setup?

Yes, the zeitronix sensor uses the entire 0-5v range though so it will not work with the diagnostics/error reporting that the Cobb sensor allows for.

Once it's released I'll consider changing out my zeitronix setup for the Cobb total package depending on what it seems like I could sell the zeitronix for.
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