LTH and E85
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Joined: Jun 2017
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From: Tri citys WA
2011 raptor 2010 C63 AMG P31
LTH and E85
I’m currently running ARH with weistec tune and drop In Filters I want to get a flex fuel kit and run e85 or a mix have been reading and some say you need bigger injectors are the factory’s running at 100% duty cycle?
anyone know if weistec supports bigger injectors with tunes or EC the only one?
anyone know if weistec supports bigger injectors with tunes or EC the only one?
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2012 c63 AMG, 2011 GLK 350, 2019 GLS 450
I’m currently running ARH with weistec tune and drop In Filters I want to get a flex fuel kit and run e85 or a mix have been reading and some say you need bigger injectors are the factory’s running at 100% duty cycle?
anyone know if weistec supports bigger injectors with tunes or EC the only one?
anyone know if weistec supports bigger injectors with tunes or EC the only one?
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Joined: Jun 2017
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From: Tri citys WA
2011 raptor 2010 C63 AMG P31
yes you need larger injectors 550 is ideal. As far as Weistec tune no idea but I’m sure they could tune for diff fueling like e85. In terms of running the flex kit you don’t necessarily need a tune when you have the flex kit. That’s the idea being able to change from 93 and e85 or mixtures of that when ever you want. Your car will automatically adjust timing to take advantage of the higher octane. A tune will net you more power on top of that. You would be looking at 15-20 wheel on e85 and another 10 to 15 with a specific tune for it.
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From: Toronto
2013 C63 P31
yes you need larger injectors 550 is ideal. As far as Weistec tune no idea but I’m sure they could tune for diff fueling like e85. In terms of running the flex kit you don’t necessarily need a tune when you have the flex kit. That’s the idea being able to change from 93 and e85 or mixtures of that when ever you want. Your car will automatically adjust timing to take advantage of the higher octane. A tune will net you more power on top of that. You would be looking at 15-20 wheel on e85 and another 10 to 15 with a specific tune for it.
Also if you change injectors, yes you need to fully tune for that.
Ethanol has a different stoich ratio so your car cannot automatically adjust for it as at e85+ you need to use about 30-40% more fuel so your afr will be extremely lean without a tune.
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2012 c63 AMG, 2011 GLK 350, 2019 GLS 450
Yes, you need to tune for the various mixes of ethanol and gasoline. Flex fuel simply allows for blend ranges so that you can simply pump whatever you like and you will be tuned for it (instead of loading an e40 tune, then an e60 tune etc). Otherwise you would need to be within 5% or so.
Also if you change injectors, yes you need to fully tune for that.
Ethanol has a different stoich ratio so your car cannot automatically adjust for it as at e85+ you need to use about 30-40% more fuel so your afr will be extremely lean without a tune.
Also if you change injectors, yes you need to fully tune for that.
Ethanol has a different stoich ratio so your car cannot automatically adjust for it as at e85+ you need to use about 30-40% more fuel so your afr will be extremely lean without a tune.
ok no your wrong. You don’t need a tune if you have a flex kit. I have had eurocharged flex kit also known as fluid dynamics kit for 3 and a half years with 550 cc injectors. I think I know what I’m talking about. I also have headers and catless mids. The reason you don’t need a tune is because the flex box adjusts the fueling based on the ethanol reading it receives. This is the benefit you can run whatever blend you want. I run full e85 all the time. Except in the winter when my car sits in the garage. I add an ethanol additive every fuel up too. I have an e85 tune however I typically just run my normal 93 euro charge tune no issues what so ever. There are some cars that auto change the tune based on 93 vs e85. This is not one of them. You can run e85 with out a flex kit however your tune needs to be spot on fueling wise and you better know your exact E number. The flex kit simplifies everything and gives you more flexibility. I would recommend not getting the cheaper kits guys buy. Those are the only ones I’ve seen people have issues with. Contact eurocharge atx for the kit. Haven’t had any issues with mine.
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From: Toronto
2013 C63 P31
ok no your wrong. You don’t need a tune if you have a flex kit. I have had eurocharged flex kit also known as fluid dynamics kit for 3 and a half years with 550 cc injectors. I think I know what I’m talking about. I also have headers and catless mids. The reason you don’t need a tune is because the flex box adjusts the fueling based on the ethanol reading it receives. This is the benefit you can run whatever blend you want. I run full e85 all the time. Except in the winter when my car sits in the garage. I add an ethanol additive every fuel up too. I have an e85 tune however I typically just run my normal 93 euro charge tune no issues what so ever. There are some cars that auto change the tune based on 93 vs e85. This is not one of them. You can run e85 with out a flex kit however your tune needs to be spot on fueling wise and you better know your exact E number. The flex kit simplifies everything and gives you more flexibility. I would recommend not getting the cheaper kits guys buy. Those are the only ones I’ve seen people have issues with. Contact eurocharge atx for the kit. Haven’t had any issues with mine.
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2012 c63 AMG, 2011 GLK 350, 2019 GLS 450
Most flex fuel kits are just a flex sensor and plumbing and still require a full tune (still the best option). Your vehicle specific kit came with a "flex box" which is a piggyback tuner... so yes not only do you have a tune (not an ecu tune, but a piggyback) but it is also very important to mention.
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From: Austin, TX
2012 C63
Read through these threads and you'll see that AMGonFire is correct
https://mbworld.org/forums/c63-amg-w204/781803-e85-preparedness.html
mbworld.org/forums/c63-amg-w204/651192-flexfuel-everyone-eurocharged-atx-e85-kits-now-available.html
https://mbworld.org/forums/c63-amg-w204/781803-e85-preparedness.html
mbworld.org/forums/c63-amg-w204/651192-flexfuel-everyone-eurocharged-atx-e85-kits-now-available.html
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From: Toronto
2013 C63 P31
again you are wrong. All of the kits available for our cars are essentially the same. The sensor detects the amount of ethanol. Sends that back to the box. The box is only connected to the injectors. It changes the percentage of fueling based on the amount of ethanol automatically. There is no tune. It is ensuring you don’t run lean. Ethanol requires 30 percent or so more fueling. It’s very simple. The box is not a piggyback tune that is hooked up to other various sensors in the car. Your car ect has full control. No trickery like a piggyback. Op trust me you will be fine if you contact eurocharge atx.
Read through these threads and you'll see that AMGonFire is correct
https://mbworld.org/forums/c63-amg-w204/781803-e85-preparedness.html
mbworld.org/forums/c63-amg-w204/651192-flexfuel-everyone-eurocharged-atx-e85-kits-now-available.html
https://mbworld.org/forums/c63-amg-w204/781803-e85-preparedness.html
mbworld.org/forums/c63-amg-w204/651192-flexfuel-everyone-eurocharged-atx-e85-kits-now-available.html
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2012 c63 AMG, 2011 GLK 350, 2019 GLS 450
Yes, seems like there are some full kits out there with a piggyback fuel controller already included. We simply have never bought "kits" before and all our cars we just add the flex sensor and then tune it on the dyno. If I was to go flex fuel I would still do it this way because my friends are all fabricators and tuners so I don't need to look at kits. These look great for the diy'er who wouldn't be able to build the kit from scratch themselves.
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From: Austin, TX
2012 C63
yup my next step (Full E85 Tune).. thankfully, i have a VP Racing station right be the home, so availability isnt an issue. Plus its not a daily driver
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Joined: Jun 2017
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From: Tri citys WA
2011 raptor 2010 C63 AMG P31
MBWorld Fanatic!
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2012 c63 AMG, 2011 GLK 350, 2019 GLS 450
Member
Joined: Feb 2018
Posts: 196
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From: Austin, TX
2012 C63
Yep, did mine as well. Took me a little longer because i did some collateral maintenance work (I'm very **** about a clean engine bay) ..so over all about 2.5 hours. (Cleaned injector ports REALLY good, Upgraded injectors, kit install,) Even ran the kit so clean you can barely tell it's there.
Cut my fuel costs in almost half, got some good power. No doubt I'd do it again
Cut my fuel costs in almost half, got some good power. No doubt I'd do it again
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c63
Both eflex and AFD kits do the same thing. If you hook up the kit with your base tune you will gain 10-15whp peak at best. If you tune for e85 you can get 30+ peak and 35+ under the curve. And a **** ton of tq. Which would put this car pretty close to 500whp n/a dependent on how good your tune is.
You also don’t need to contact eurocharged for a kit. All they are gonna do is add 250+ dollars on top of the kit with injectors. The injectors you seek are part number 0280158123
Just make sure your kit has EV1 harness connection
Side note your fuel trims will never be correct. Those kits don’t run very well. 80-85% at best. When your trims aren’t correct you’ll lose power.
Also, it’s not hard to monitor your e content. All you need is a sensor and gauge. If your tune is meant for e75 and you have e60... you will have knock and detonation. There’s really no point in running race gas running 93 timing. Waste of time, I’ve done it.
if you want more power than that you’ll need nitrous or supercharger
You also don’t need to contact eurocharged for a kit. All they are gonna do is add 250+ dollars on top of the kit with injectors. The injectors you seek are part number 0280158123
Just make sure your kit has EV1 harness connection
Side note your fuel trims will never be correct. Those kits don’t run very well. 80-85% at best. When your trims aren’t correct you’ll lose power.
Also, it’s not hard to monitor your e content. All you need is a sensor and gauge. If your tune is meant for e75 and you have e60... you will have knock and detonation. There’s really no point in running race gas running 93 timing. Waste of time, I’ve done it.
if you want more power than that you’ll need nitrous or supercharger
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From: Texas
10 C six trizzle
The install is not what i'm referring to. E85 is highly corrosive, pump e85 highly inconsistent, collects moisture rapidly if the car sits and requires much more frequent oil changes. Things i wont be sacrificing for 30hp, or even more considering I have a blower and much more to gain.
As the guy above mentioned. Fuel trims will always be wrong. that's a hard pass.
As the guy above mentioned. Fuel trims will always be wrong. that's a hard pass.
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c63
The install is not what i'm referring to. E85 is highly corrosive, pump e85 highly inconsistent, collects moisture rapidly if the car sits and requires much more frequent oil changes. Things i wont be sacrificing for 30hp, or even more considering I have a blower and much more to gain.
As the guy above mentioned. Fuel trims will always be wrong. that's a hard pass.
As the guy above mentioned. Fuel trims will always be wrong. that's a hard pass.
On your supercharger you greatly benefit from even an e30 blend. I’d be surprised if you didn’t get 30+whp without even tuning the car. Full e85 FI cars gain 70+ with proper tuning and fuel support.
As I said before, e85 on the car with no tuning will feel lackluster. The Bosch computer is going to be fighting itself to correct trims. This will lead to inconsistency on how the car feels. Also, e85 will require much more timing because of the burn rate. Most wont understand this car their car might drive fine. But go against a properly tuned car and you’ll be surprised.
Also, the people who have trouble in cold start with e in colder weather is because your cold start fuel map needs to be rebuilt. Eurocharged, weistec, oetuning, does not offer that. They simply change the load tables, add 3-4 degrees of timing everywhere and hopefully the Bosch takes care of the rest.
Custom tune, headers, e85 will yield phenomenal results for an N/a car.
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W204 C63
If I understood this correctly if one decides to tune for e85 for max gains, ideally you'd need multiple tune files for different levels of e content to avoid issues? Since it sounds like all e85 stations are inconsistent.
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c63
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'12 C63 P31 coupe
Just to add I have a flex fuel kit that I"ve been running for 80k miles with no issues. Usually find E70 around here. Only things I can tell is a little hard to start on cold mornings and an extra 5 car gap on cars I usually only gap by one.
