[CruzM3]

Originally Posted by Pr3dict

This seems crazy though. The designed a tuner to work on cars in the US and I'm the only person that is having check engine lights. I'm using 93 not 91 octane gas (as nobody really has 91 around here). I ordered a product to work as designed and for me to now have to add octane booster for the product to work then I believe it to be defective.

I'm using the dinan elite and not jb4 because of the warranty.

Maybe something is up with that particular unit you have but I would hope Dinan would take care of you but it doesn't seem like it. I hate how you can never reach anyone on the phone there and if you leave a msg they take forever to get back to you and sometimes not at all.

[riskmaker76]

Map 1 - 3 are horrible for me with MPPSK and the gas we have here... I have to use Map 5 and define custom settings to gain performance without sacrificing drivability.

Whats your IGN1 look like? What does it peak at at 5500 rpms?

Originally Posted by Cruz28/40

Yes I have JB4 on version 8 which I just recently updated to. Just using Maps 1 for now until my Eventuri intake gets here then I'll switch to map 2. I think 3 might be to aggressive since I don't plan to go FBO. Haven't had any problems yet but I always make sure I have high enough octane for whatever map I'm trying to run. Gas quality here in Germany seems to be pretty good.

[Araemo]

Originally Posted by riskmaker76

No - I live with my garbage 93 octane which probably still better than your garbage 91 octane... I live with the current performance which is still better than stock mppsk - however I had to manually tune the JB4 and forgo the pre-defined maps to work on my 93 pump gas... I put in E85 now (2 gallons) if I want to get the last mile of performance. I have been considering octane booster instead for other reasons (ie fuel pressure, Trims, etc.) - but its costly compared to E85.

Octane booster isn't terribly healthy for the engine long-term. Ethanol can be a bit of a pain, but most cars these days can handle up to E15 without any issues at all, so as long as there wasn't much ethanol in your gas to begin with, a bit of E85 combined with your 93 shouldn't hurt. The challenge is that E85 is a very variable amount of ethanol, and standard 'unleaded' can have up to 15% ethanol without extra labeling.

[riskmaker76]

I have read mixed opinions on long term use.. Fouling of plugs, etc. and why E85 is best.. but some dont see any issues. I suspect the type of plugs, afr, etc. have something to play in that..

Here in NY 10% ethanol... 2 gallons into 3 / 4 series takes you to E20 which isnt an issue for our motors... however what varies are your bolt ons, altitude, etc. which all have an effect on AFR - E85 introduces fuel pressure challenges because of this on the b58.. but thats for another discussion..

Originally Posted by Araemo

Octane booster isn't terribly healthy for the engine long-term. Ethanol can be a bit of a pain, but most cars these days can handle up to E15 without any issues at all, so as long as there wasn't much ethanol in your gas to begin with, a bit of E85 combined with your 93 shouldn't hurt. The challenge is that E85 is a very variable amount of ethanol, and standard 'unleaded' can have up to 15% ethanol without extra labeling.

[Pr3dict]

I just remembered the first thing we did before actually removing the tuner was turn off the tune and it still brought the cel back. I think its a defective unit haha.

[riskmaker76]

Clearly only an idiot would look for reasons other than the unit if turning it on or off caused a CEL.... Just saying.... ha ha ha

Originally Posted by Pr3dict

I just remembered the first thing we did before actually removing the tuner was turn off the tune and it still brought the cel back. I think its a defective unit haha.

[Pr3dict]

Originally Posted by riskmaker76

Clearly only an idiot would look for reasons other than the unit if turning it on or off caused a CEL.... Just saying.... ha ha ha

just saying that sentence did not make any sense. If I put the unit in bypass mode and it still puts out a CEL then you would inherently start looking at other causes for that CEL. only after REMOVING the unit completely and all the wiring bypass did the CEL stay gone.

In essence its not the "tune" as you think it is. It's the actual unit or wiring bundle.

[riskmaker76]

LOL - I guess that was pretty important piece of information.. Kind of negates the whole octane discussion - albeit relevant nonetheless in general outside of obvious issues.

Yea - I guess it takes genius to figure it out its either the unit or the install - why even bother posting it ?

Originally Posted by Pr3dict

just saying that sentence did not make any sense. If I put the unit in bypass mode and it still puts out a CEL then you would inherently start looking at other causes for that CEL. only after REMOVING the unit completely and all the wiring bypass did the CEL stay gone.

In essence its not the "tune" as you think it is. It's the actual unit or wiring bundle.

[Pr3dict]

Originally Posted by riskmaker76

LOL - I guess that was pretty important piece of information.. Kind of negates the whole octane discussion - albeit relevant nonetheless in general outside of obvious issues.

Yea - I guess it takes genius to figure it out its either the unit or the install - why even bother posting it ?

Because Dinan keeps reaffirming that the "generation 2" units are extremely resilient to breaking and they are confident that it isnt the unit even after the logic is explained. I'm still going through the process with them and I want to keep everyone updated on their customer service. I sure as hell would want to know how they handle issues like this.

[riskmaker76]

It shouldnt be a discussion - if the CEL comes on with the unit installed but disabled - its either the installation OR the unit. If you had a professional install / re-install and ruled out the connecting of two wires, then it should be a closed matter.

If you purchased through a credit card, put in a dispute if your not getting anywhere with Dinan... I would let them know thats your next recourse.

Originally Posted by Pr3dict

Because Dinan keeps reaffirming that the "generation 2" units are extremely resilient to breaking and they are confident that it isnt the unit even after the logic is explained. I'm still going through the process with them and I want to keep everyone updated on their customer service. I sure as hell would want to know how they handle issues like this.

[Pr3dict]

Originally Posted by riskmaker76

It shouldnt be a discussion - if the CEL comes on with the unit installed but disabled - its either the installation OR the unit. If you had a professional install / re-install and ruled out the connecting of two wires, then it should be a closed matter.

If you purchased through a credit card, put in a dispute if your not getting anywhere with Dinan... I would let them know thats your next recourse.

Well your logic is different from myself and all the techs at bmw. I would not immediately assume it was the unit if you bypass the tune and still getting check engine light. Based on knowing other parameters I may check other things like sensors that may just be bad.

But we will see.

[riskmaker76]

So you remove the unit completely and no CEL - car drives fine
Unit installed, enabled or disabled you get a CEL - car does not drive normal

Is this what your saying? And your blaming the car?

Originally Posted by Pr3dict

Well your logic is different from myself and all the techs at bmw. I would not immediately assume it was the unit if you bypass the tune and still getting check engine light. Based on knowing other parameters I may check other things like sensors that may just be bad.

But we will see.

[CruzM3]

Originally Posted by riskmaker76

Map 1 - 3 are horrible for me with MPPSK and the gas we have here... I have to use Map 5 and define custom settings to gain performance without sacrificing drivability.

Whats your IGN1 look like? What does it peak at at 5500 rpms?

I haven't data logged yet but I will once I return from my work trip and hopefully my intake will be reroute or here by then. I would like to log with it on this time. I have a thread over o N54tech in the support section with some logs but that was from version 5e software. I will update that one.

[riskmaker76]

V8 hugely improved drivability... night and day sifference on all maps.. so my statement is relative (in other words Maps 1-3 are not bad on 8 just not as good as Map 6 with the fuel quality im running)

Originally Posted by Cruz28/40

I haven't data logged yet but I will once I return from my work trip and hopefully my intake will be reroute or here by then. I would like to log with it on this time. I have a thread over o N54tech in the support section with some logs but that was from version 5e software. I will update that one.

[grantheider]

Has anyone installed this tune with their 340i/440i xDrive MPPSK? I want to know if it really makes 426 HP and 463 lb-ft as advertised by Dinan.

Also, how much will this tune bring down the 0-60 time for an xDrive model?

[monkiboy]

Originally Posted by grantheider

Has anyone installed this tune with their 340i/440i xDrive MPPSK? I want to know if it really makes 426 HP and 463 lb-ft as advertised by Dinan.

Also, how much will this tune bring down the 0-60 time for an xDrive model?

each dyno will read differently based on a myriad of factors. what you want to concern yourself with is the delta from base MPPSK to the dyno after the install of their tuner.

i did a baseline and post in this thread on my 340xi MPPSK with the dinan elite piggyback and yielded a negative delta unfortunately. driveability wasn't great either. kind of like it was blatantly obvious the ECU was being lied to and the car didn't like it haha

[ckrieg]

So very interesting. I had a similar experience as Monkiboy. MPPSK with Dinan stacked on top. With the Dinan the car ran rough, it was inconsistent and even inconsistent within single gear pulls. It had a bit of a mind of it's own and I was really quite disapointed.

The only day, the car ran REALLY rough, and I had the CEL come on a couple of times. I dropped it off to my dealer, apparently a spark plug had broken?!

The point of the story is that BMW told them to replace all of the spark plugs and INJECTORS. My dealer questioned the injectors and BMW said "if they are made it Turkey, replace them".

The car runs SOOO much smoother now, it's finally running how it should.

Sounds like BMW knows there is a problem with the injectors that are manufactured in Turkey.

'17 BMW 340i xDrive M Performance Edition

[riskmaker76]

At least running a JB4 - Map 1 doesnt run the smoothest (mildest map) - and that depends on the day, the moon orientation, gravitational pull, etc. LOL

But all honesty its probably due to poor quality gas.

Running Map 6 I can control the amount of additive boost making even less aggressive then map 1.

Just not enough good quality fuel to get more then 3psi below 4k and 2psi above 4k with the MPPSK... - pretty evident with little to no timing advance.

I do admit though the MPPSK by itself hits 16 psi - which is like map2 on the JB4... i hit 17 psi regularly with the JB4 - but then timing is low... so your trading off...

Originally Posted by ckrieg

So very interesting. I had a similar experience as Monkiboy. MPPSK with Dinan stacked on top. With the Dinan the car ran rough, it was inconsistent and even inconsistent within single gear pulls. It had a bit of a mind of it's own and I was really quite disapointed.

The only day, the car ran REALLY rough, and I had the CEL come on a couple of times. I dropped it off to my dealer, apparently a spark plug had broken?!

The point of the story is that BMW told them to replace all of the spark plugs and INJECTORS. My dealer questioned the injectors and BMW said "if they are made it Turkey, replace them".

The car runs SOOO much smoother now, it's finally running how it should.

Sounds like BMW knows there is a problem with the injectors that are manufactured in Turkey.

'17 BMW 340i xDrive M Performance Edition

[Pr3dict]

Originally Posted by riskmaker76

At least running a JB4 - Map 1 doesnt run the smoothest (mildest map) - and that depends on the day, the moon orientation, gravitational pull, etc. LOL

But all honesty its probably due to poor quality gas.

Running Map 6 I can control the amount of additive boost making even less aggressive then map 1.

Just not enough good quality fuel to get more then 3psi below 4k and 2psi above 4k with the MPPSK... - pretty evident with little to no timing advance.

I do admit though the MPPSK by itself hits 16 psi - which is like map2 on the JB4... i hit 17 psi regularly with the JB4 - but then timing is low... so your trading off...

I spoke to Dinan and they said your gas theory is off base. They said the quality of gas could not swing too far down for it to cause ANY issues. They also said that the octane booster is probably masking the real issue.

In other news, I had the dealer reinstall the tuner and so far it hasn't caused any issues. Time will tell.

[riskmaker76]

Vendors Plan on issues - deflect and scatter


All credibility was lost when verifying the install was skipped..

Octane is king when adding boost. If they told you octane/fuel quality cant cause drivability issues you're being naive at this point. An idiot can install these things - so I dont know how they could have gotten it wrong...

But if its not the device, not the install, not the fuel, yet runs fine without the device.... Must be the car!

Originally Posted by Pr3dict

I spoke to Dinan and they said your gas theory is off base. They said the quality of gas could not swing too far down for it to cause ANY issues. They also said that the octane booster is probably masking the real issue.

In other news, I had the dealer reinstall the tuner and so far it hasn't caused any issues. Time will tell.

[VikingEurope]

I had my Dinan Elite for Mppsk installed last week. Location Europe, Finland, gasoline shell v-power, car Bmw 340i GT xdrive 2017. First I waited for the MPPSK for 6 months, and now, a month later Dinan. Not dynoed but tried some accelerations before and after with gps, always starting from the same spot (slight downhill). Results(2 attempts/setup):

100-160 km/h original: 5,9sek and 6,0sek

100-160 km/h MPPSK: 5,4 sek and 5,5 sek

100-160 km/h MPPSK: 4,4 sek and 4,7 sek
+ Dinan Elite

No cel, no other problems eighter. The gearchanges are different, not as smooth when pedal to the metal but I would not say they are bad. So far, after 500km, I am quite pleased.

[MarcosLepre]

Long time reader, first time poster. The decision to install the Dinanatronics was simple, I wanted to retain the warranty or at least have coverage under Dinan. I do not plan on tracking my car or doing any tuning beyond this. Secondly, I didn’t want to have to remove the piggyback during normal dealer service. In addition to the Dinantronics, I installed the Dinan cat back exhaust and BMS intake. Here are my thoughts.
Dinantronics:
From day one, the drivability had been fantastic, very smooth and feels OEM. Power wise, it was not a huge improvement, the difference is mostly felt between 3500 – 5000. Before or after, it almost feels stock. Although I am happy with power gains, I wish it had a bit more. I am not sure if I have already gotten used to the additional power but sometime I don’t feel the extra power. In the next few months, I plan to do a dyno to see the actuals.
The Dinan app is not working and never worked. I called dinan and left a message but never got a response. I will keep trying or take it back to the local approved shop to see if they get a better response.
BMS intake:
Its ok, not the best since I need to take it out before taking the car into service. The noise it makes is Honda-ish. Since it has no heat shield and all it does is suck in a lot of hot air, performance gains must be negligible. I am on the fence if I keep it, most likely once I take it out for service I will replace it with a K&N drop. Currently Dinan has no intake and I do not know if at this point they will come out with one.
Dinan cat back exhaust:
This completely changes the car for the better. In my opinion, it is better than any M3/M4 with regardless of exhaust. Its laud at startup but not obnoxious and it quiets up in no time. The sweat spot is between 2k – 4.5k, beyond that, the engine and wind noise overpowers the exhaust. On the negative side, I wish it had a valve, we you are cruising between 2-2.5k you can hear a little drone and it bothers me. The price is also hefty; I think $1k would be more reasonable. I tried taking a video but the iPhone microphone does not do it justice.
Upcoming mods:
Dinan spring and from there enjoy the car and save money to get the M3.