FlexFuel for Everyone! Eurocharged ATX E85 Kits NOW AVAILABLE :)
Thread Starter
Former Vendor of MBWorld
Joined: Jan 2008
Posts: 541
Likes: 130
From: Georgetown, TX
93' 500E, 95' Corolla
*****************NEWS FLASH***************** Just for yucks I looked into the injectors today and they seem to be available for a somewhat reasonable price again. I will do $470/shipped for a set. Brand new genuine Bosch 550's. Lemme know if you need them 
Thanks!
Dave
P.S. Gonna copy and paste this on the other GB as well.
Thanks!
Dave
P.S. Gonna copy and paste this on the other GB as well.
Junior Member
Joined: Oct 2014
Posts: 32
Likes: 2
From: Charleston SC
2015 C63 AMG 507 2001 BMW 740IL 2004 E55 AMG
How much are you trying to let the kit go for?
Senior Member
Joined: Jul 2017
Posts: 385
Likes: 47
C63 p31 coupe, Clk550 cab, M3 coupe, LS430, 750LI
*****************NEWS FLASH***************** Just for yucks I looked into the injectors today and they seem to be available for a somewhat reasonable price again. I will do $470/shipped for a set. Brand new genuine Bosch 550's. Lemme know if you need them
Thanks!
Dave
P.S. Gonna copy and paste this on the other GB as well.
Thanks!
Dave
P.S. Gonna copy and paste this on the other GB as well.
E85 kit has landed! Stoked to get it on the car. NOTICE!!!!- BE CAREFUL opening your boxes guys! My wiring loom was packed on the top of the box, and I have an tendency to use very sharp knives to cut packages (Shameless plug for Spyderco here) ...thankfully I did not nick the loom. This PSA has concluded.
Thread Starter
Former Vendor of MBWorld
Joined: Jan 2008
Posts: 541
Likes: 130
From: Georgetown, TX
93' 500E, 95' Corolla
Oh well! Good news is there are still low mile cars around for when you get back! Just did a bunch of service on a 2009 w/ 13k miles on it! Crazy...Have fun in Japan
Thanks
Dave
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Filling Up:
My needle was at a hair under half tank. I managed to get 11 gallons of E in there. It took a few minutes tooling around before the monitor maxed out at 55% E. I just cruised into work and will await a full fill-up.
As for the App, well, it is what it is, an ethanol monitor. Seems like the developer could do more with it like "the other guys" and show injector duty cycle, I think that's what it's called.
In closing, while it may not be for everyone, I'm very excited with the kit. Everything fit. The looms and connections are all top quality and well thought out, and well laid out with enough slack where you need it.
THANKS DAVE.
Is there an available app to see injector duty cycle? Is that necessary? I don't have headers but with ROWs and 2nd Cat Delete I see another member was at 85% duty cycle on about 65%.
Senior Member
Joined: Jul 2017
Posts: 385
Likes: 47
C63 p31 coupe, Clk550 cab, M3 coupe, LS430, 750LI
Ok fellas now I'm starting to get a little thrown off here as to why most mb world member have some sort of "data lust". Whats with the obsession with knowing all these "numbers". If you're a tuner, sure I get it, but the rest of us, c'mon now.
Not sure. Speaking personally now that I'm running E85, I just figured I should be aware of how hard my injectors are working since I have stock ones. I don't know what 99% of the readings would mean but I'd have this forum to help me decipher and learn if ratios and trims and all this other stuff people are complaining about were popping up. Like there's that whole thread running on long term fuel trims and ROW boxes and whether it's good or bad or what.
Senior Member
Joined: Jan 2018
Posts: 415
Likes: 109
From: Whitehouse Station, NJ
2012 C63 P31 Sedan
Some of the numbers people are trying to monitor are important. With OEM injectors, duty cycle is one of them. A long standing "rule of thumb" regarding fuel injectors was to not exceed 80% duty cycle under full load. You start to run the risk of being unable to deliver enough fuel under certain conditions. For instance, if you were to get a batch of e85 at the higher end of ethanol content, you may not be able to provide enough fuel under load to maintain a safe AFR. Similarly, if injector flow decreases over time due to build-up (not uncommon at all), being that high in duty cycle reduces the available "headroom" for the ECU to be able to compensate by increasing duty cycle.
To me, this is an important number to monitor since the OEM injectors are near the edge when using E85. I'd be far less concerned with monitoring this if you already have upgraded fuel injectors/ fuel system.
To me, this is an important number to monitor since the OEM injectors are near the edge when using E85. I'd be far less concerned with monitoring this if you already have upgraded fuel injectors/ fuel system.
Last edited by BalanBro; Jun 19, 2018 at 03:42 PM.
Thanks that’s super helpful at explaining what I thought I need to be mindful of with this mod. Do you know whether the Android Torque Pro app shows duty cycle? And another dumb question, has anyone tried connecting the Eflexfuel app to the EC/ATX/AFD controller? Since the other app does read duty cycle, just curious if such a thing is possible since people on both threads seem to think it's all the same controller?
Some of the numbers people are trying to monitor are important. With OEM injectors, duty cycle is one of them. A long standing "rule of thumb" regarding fuel injectors was to not exceed 80% duty cycle under full load. You start to run the risk of being unable to deliver enough fuel under certain conditions. For instance, if you were to get a batch of e85 at the higher end of ethanol content, you may not be able to provide enough fuel under load to maintain a safe AFR. Similarly, if injector flow decreases over time due to build-up (not uncommon at all), being that high in duty cycle reduces the available "headroom" for the ECU to be able to compensate by increasing duty cycle.
To me, this is an important number to monitor since the OEN injectors are near the edge when using E85. I'd be far less concerned with monitoring this if you already have upgraded fuel injectors/ fuel system.
To me, this is an important number to monitor since the OEN injectors are near the edge when using E85. I'd be far less concerned with monitoring this if you already have upgraded fuel injectors/ fuel system.
Last edited by Crya; Jun 19, 2018 at 01:22 PM.
Senior Member
Joined: Jan 2018
Posts: 415
Likes: 109
From: Whitehouse Station, NJ
2012 C63 P31 Sedan
Thanks that’s super helpful at explaining what I thought I need to be mindful of with this mod. Do you know whether the Android Torque Pro app shows duty cycle? And another dumb question, has anyone tried connecting the Eflexfuel app to the EC/ATX/AFD controller? Since the other app does read duty cycle, just curious if such a thing is possible since people on both threads seem to think it's all the same controller?
Consider the following: Let's say at a given ethanol content, the controller is programmed to increase duty cycle by say, 20%. Based on engine load, the ECU is commanding a injector duty cycle of 60% for the fueling needs of premium gasoline. The OBD2 system would then report this 60% duty cycle as received from the ECU. However, the ethanol controller received this signal, and adds the 20% additional fuel by increasing the injector pulse by 20%. As a result, the true injector duty cycle would be 20% greater, or 72%. Therefore, you'd really need to see duty cycle at the controller itself.
Member
Joined: Feb 2017
Posts: 87
Likes: 8
2009 C63 AMG, 1998 Nissan Frontier
I believe that the Torque Pro App does display duty cycle, but I don't know if the information would be relevant when using E85. I imagine the E85 controller works by increasing the injector duty cycle signal received from the ECU as necessary for the measured ethanol content.
Consider the following: Let's say at a given ethanol content, the controller is programmed to increase duty cycle by say, 20%. Based on engine load, the ECU is commanding a injector duty cycle of 60% for the fueling needs of premium gasoline. The OBD2 system would then report this 60% duty cycle as received from the ECU. However, the ethanol controller received this signal, and adds the 20% additional fuel by increasing the injector pulse by 20%. As a result, the true injector duty cycle would be 20% greater, or 72%. Therefore, you'd really need to see duty cycle at the controller itself.
Consider the following: Let's say at a given ethanol content, the controller is programmed to increase duty cycle by say, 20%. Based on engine load, the ECU is commanding a injector duty cycle of 60% for the fueling needs of premium gasoline. The OBD2 system would then report this 60% duty cycle as received from the ECU. However, the ethanol controller received this signal, and adds the 20% additional fuel by increasing the injector pulse by 20%. As a result, the true injector duty cycle would be 20% greater, or 72%. Therefore, you'd really need to see duty cycle at the controller itself.
Super Member
Joined: Oct 2015
Posts: 723
Likes: 115
From: Long Island
'16 CLS63S
I think we are at a point now where a substantial number of people are using some kind of flex fuel kit on their car and the topic of oil change intervals should be discussed.
Has anyone had an oil analysis done yet after a few thousand miles? I have about 2800 miles since the last oil change with liqui moly of which 2000 of those miles has been strictly e85. I might be due for a sample rather soon just to see the numbers.
Anyone know the tolerances on this motor? Are they considered tight or loose? If tight maybe we can get a decent interval of 4000-5000.
We really have to find out if our cars are diluting the oil and these intervals need to be drastically reduced
Has anyone had an oil analysis done yet after a few thousand miles? I have about 2800 miles since the last oil change with liqui moly of which 2000 of those miles has been strictly e85. I might be due for a sample rather soon just to see the numbers.
Anyone know the tolerances on this motor? Are they considered tight or loose? If tight maybe we can get a decent interval of 4000-5000.
We really have to find out if our cars are diluting the oil and these intervals need to be drastically reduced
*****************NEWS FLASH***************** Just for yucks I looked into the injectors today and they seem to be available for a somewhat reasonable price again. I will do $470/shipped for a set. Brand new genuine Bosch 550's. Lemme know if you need them
Thanks!
Dave
P.S. Gonna copy and paste this on the other GB as well.
Thanks!
Dave
P.S. Gonna copy and paste this on the other GB as well.
http://napolperformance.com/lincoln/...ord-gt-gm.html
Thread Starter
Former Vendor of MBWorld
Joined: Jan 2008
Posts: 541
Likes: 130
From: Georgetown, TX
93' 500E, 95' Corolla
yo Dave. Are these 550s the ones with the stubby short nozzles I’ve seen? Does it make a difference? Also, trying to research prefab pigtails as I admittedly don’t understand the connection-speak for the injectors. Would something like this work? Just as a hypothetical as I’m not quite ready for larger injectors according to experts.
http://napolperformance.com/lincoln/...ord-gt-gm.html
Best option is to cut and solder on new connectors in the style you need, as opposed to using an adapter harness.
Thanks!
Dave
