[RobertRichy]

http://datazap.me/u/robertrichie/mhd...og=0&data=4-21


Go easy on me....this is my first time logging.

[Komec]

You need to start loggin in 3th gear at 2-3000rpm and floor it all the way up until you hit 6000rpm, shift in to 4th and hold couple of seconds and then stop logging. Be aware you will have around 100mph/160kmh speed when you hit 4th gear.

[Theador]

Originally Posted by Komec

You need to start loggin in 3th gear at 2-3000rpm and floor it all the way up until you hit 6000rpm, shift in to 4th and hold couple of seconds and then stop logging. Be aware you will have around 100mph/160kmh speed when you hit 4th gear.

And make sure your air con is off and traction control is completely disabled

[byCloudNine]

new here, recently put MHD to the test, I am coming from racespec.us stage one to this tuning app. from what I understand, any timing corrections over -5 is bad, here's my log all the info related to the car is in the description.

http://datazap.me/u/bycloudnine/3rd-...-9-10-11-12-24

in another subject, if I run 93 pump and load up the 95oct stage 2+ tune, do I risk running lean or any other sort of dangers/damage? From what I heard, these tunes typically have a safety of +/-3 octane deviation built in.

EDIT- im only discussing the version 6.1

Cheers,
Dj

[Rory]

V7.1 fmic 91 test drive log. Running shell v power and max wg rattle fix applied.

Just looking to see if this looks safe, not too lean etc. Feels good on the road , just want to be confident it's a safe tune.

http://datazap.me/u/rory/log-1472847400?log=0&data=9-21

[extreme-eg]

Originally Posted by byCloudNine

new here, recently put MHD to the test, I am coming from racespec.us stage one to this tuning app. from what I understand, any timing corrections over -5 is bad, here's my log all the info related to the car is in the description.

http://datazap.me/u/bycloudnine/3rd-...-9-10-11-12-24

in another subject, if I run 93 pump and load up the 95oct stage 2+ tune, do I risk running lean or any other sort of dangers/damage? From what I heard, these tunes typically have a safety of +/-3 octane deviation built in.

EDIT- im only discussing the version 6.1

Cheers,
Dj

You already have timing correction across all cylinders at low rpm and high load and intermittent timing correction throughout the pull so I wouldn't recommend you run any higher octane map on your current fuel.

The 95 Octane map will run more ignition advance (not sure if the boost target also increases).

If you want to run the 95 Octane or E25 map variants you would need to add some E85 to the tank to be safe and take advantage of the more aggressive mapping.

[extreme-eg]

Originally Posted by Rory

V7.1 fmic 91 test drive log. Running shell v power and max wg rattle fix applied.

Just looking to see if this looks safe, not too lean etc. Feels good on the road , just want to be confident it's a safe tune.

http://datazap.me/u/rory/log-1472847400?log=0&data=9-21

Looks good, no concerns from what I can see.

[CoffeeBean]

Just picked up my first 335i after having 2 328i's! First mod of course was MHD flash. From what I can see everything looks fine, but wanted to confirm.

2007 6AT without oil cooler, 93k miles, 2nd-3rd gear pulls to redline, 93F ambient temp, v6.1 stage 1 93oct

http://datazap.me/u/rossburns/2nd-3r...og=0&data=4-24

DCI and CP w/ Tial BOV on order.

[Theador]

Originally Posted by RossTheBoss

Just picked up my first 335i after having 2 328i's! First mod of course was MHD flash. From what I can see everything looks fine, but wanted to confirm.

2007 6AT without oil cooler, 93k miles, 2nd-3rd gear pulls to redline, 93F ambient temp, v6.1 stage 1 93oct

http://datazap.me/u/rossburns/2nd-3r...og=0&data=4-24

DCI and CP w/ Tial BOV on order.

Your IAT is running quite high, I assume you've got the stock intercooler in there? You're not meeting load target.

Torque limiter kicked in as you redlined, I think that kicked in a bit of timing corrections.

Other than the intercooler temp all looks quite good I think - but then I am no expert lol.

[CoffeeBean]

Originally Posted by Theador

Your IAT is running quite high, I assume you've got the stock intercooler in there? You're not meeting load target.

Torque limiter kicked in as you redlined, I think that kicked in a bit of timing corrections.

Other than the intercooler temp all looks quite good I think - but then I am no expert lol.

Yep stock intercooler. It was about 2pm and blazing hot outside. I do need to try it again when it cools down (somewhat) at night. Thanks for the input!

[Theador]

Originally Posted by Theador

Thanks for this. I'm filling up at Shell with V Power Nitro every time. But It's a little local garage with really old pumps. Wondering if they're secretly selling a bad grade or something. I've suspected fuel for a little while. The plugs I'm not sure if they're NGKs or Bosch so they may need changing although I'm not getting any missfires.

Haven't logged for a while. I started filling from a different station and stopped swapping maps every other day. Car seems much better now.

I'm still getting what I consider a rather unprogressive delivery of power, as in I get a sudden big kick of power at around 3-4000rpm which catches me out sometimes. I have new turbos on the car with only a few hundred miles on them now, so not entirely sure if it's because of that. Don't really notice it on WOT, only if progressively accelerating, or if hovering around 3k and then giving a bit more throttle. It may just be my driving style that needs dialing in

[CoffeeBean]

Originally Posted by Theador

And make sure your air con is off and traction control is completely disabled

What is the reasoning for this? Most situations on the street would have both on, so isn't that what you would want to log?

[Theador]

Originally Posted by RossTheBoss

What is the reasoning for this? Most situations on the street would have both on, so isn't that what you would want to log?

Traction will throw in factors which will change timing etc. Air con just mucks everything up.

You need to get the tune without these factors, then add them back in afterwards, otherwise you're tuning to a variable rather than a constant.

[CoffeeBean]

Originally Posted by Theador

Traction will throw in factors which will change timing etc. Air con just mucks everything up.

You need to get the tune without these factors, then add them back in afterwards, otherwise you're tuning to a variable rather than a constant.

Gotcha. My next log I'll turn those off. Riddle me this also, after looking at other logs, everyone's IAT hovers around 100F even with stock i/c. What in the world could make mine go to 158F even with it hot outside?

[Theador]

Originally Posted by RossTheBoss

Gotcha. My next log I'll turn those off. Riddle me this also, after looking at other logs, everyone's IAT hovers around 100F even with stock i/c. What in the world could make mine go to 158F even with it hot outside?

Haha, no-one could give me an answer to this either. Switched to a 7" VRSF intercooler though and my IAT is now MUCH lower.

The only thing I could put it down to was every time I logged, I did so shortly after coming out of 40 mins of London traffic, or I was doing multiple pulls.

[Jeff@TopGearSolutions]

Originally Posted by RossTheBoss

Gotcha. My next log I'll turn those off. Riddle me this also, after looking at other logs, everyone's IAT hovers around 100F even with stock i/c. What in the world could make mine go to 158F even with it hot outside?

A stock FMIC usually won't be near 100 unless it's really cold outside.

Are we talking apples to apples?

Everything is a factor with intake air temps. Ambient, humidity, heat soak, boost pressure, load, gear, pulls, ETC

Ideal temps with IAT would show after plenty of time on the highway and getting plenty of air through the intercooler and engine bay to minimize any heat soak. I would say at least 5 minutes of unobstructed flow to the front end with a constant rate of say 60 MPH. That would remove all heat from the engine bay. (Minimal load on engine to maintain speed).

I know I'm getting technical but that is because as I said before, everything is a factor.

Anyway, 3rd gear pull from 2500 RPM to at least 6000 RPM is the go to for logs.

At the top of 3rd gear, assuming say 80F outside, your IAT should be about 100. Usually 20 above ambient is fair at that temp with a good FMIC.

In about 85F I was doing 3rd gear pulls into 4th and at the top of 4th my IAT were 108 with an ETS 5" FMIC. It's a high efficiency small FMIC. A 7" would be that much better.

If you are any higher then 20F over ambient, it's time for an FMIC upgrade.

[CoffeeBean]

Thanks Theador and Jeff. I'll make those adjustments on the next log to see what I come up with, and go from there.

[A418t81]

Ross your logs look Ok, not great. As already stated, your IATs are very, very high...but it is very, very hot here as well and you started out heat soaked on that run. Your STFTs are very high negative as in the car is pulling 30% fuel to hit AFR targets. That, in layman's terms, means that there is around 30% less oxygen around to burn than the computer expects. This might be due to your sky-high IATs and the correction maps that govern these conditions, but this is something you need to keep an eye on. I expect they will improve and head towards zero as you get your IATs down. You need an FMIC now. Your torque limiter isn't anything other than a high rpm rev limiter. No need to rev past 6k period, no power above that level with a modded stock turbo N54 and you are just needlessly spinning the engine, turbos, and accessories faster than needed for no addition benefit.

Throw in 2 gallons of E85 to a tank of pump gas. The extra octane will improve power and consistency, and also zero out your timing corrections in this weather.

[CoffeeBean]

Originally Posted by A418t81

Ross your logs look Ok, not great. As already stated, your IATs are very, very high...but it is very, very hot here as well and you started out heat soaked on that run. Your STFTs are very high negative as in the car is pulling 30% fuel to hit AFR targets. That, in layman's terms, means that there is around 30% less oxygen around to burn than the computer expects. This might be due to your sky-high IATs and the correction maps that govern these conditions, but this is something you need to keep an eye on. I expect they will improve and head towards zero as you get your IATs down. You need an FMIC now. Your torque limiter isn't anything other than a high rpm rev limiter. No need to rev past 6k period, no power above that level with a modded stock turbo N54 and you are just needlessly spinning the engine, turbos, and accessories faster than needed for no addition benefit.

Throw in 2 gallons of E85 to a tank of pump gas. The extra octane will improve power and consistency, and also zero out your timing corrections in this weather.

Thanks! I know you're in the AL BMW Group on Facebook, but I can't place your real name..? Learning lots of great stuff here. Are you looking at the low pressure fuel to determine that? It's supposed to be in the 70s the next couple nights, so I may go out and see what my IAT looks like then. When I did that previous log, I had tried about 3 other runs back to back but had to shut it down because of traffic. I'm sure that didn't help. If I can't get them down I may just flash back to stock while it's hot outside until I can get a good FMIC.

Just had a thought. I'd be surprised if this car has ever been walnut blasted. Would that be enough to impede airflow to make it pull 30% fuel, or at least contribute enough to it?

[A418t81]

Originally Posted by RossTheBoss

Thanks! I know you're in the AL BMW Group on Facebook, but I can't place your real name..? Learning lots of great stuff here. Are you looking at the low pressure fuel to determine that? It's supposed to be in the 70s the next couple nights, so I may go out and see what my IAT looks like then. When I did that previous log, I had tried about 3 other runs back to back but had to shut it down because of traffic. I'm sure that didn't help. If I can't get them down I may just flash back to stock while it's hot outside until I can get a good FMIC.

Just had a thought. I'd be surprised if this car has ever been walnut blasted. Would that be enough to impede airflow to make it pull 30% fuel, or at least contribute enough to it?

Not sure that I'm part of that group. The VE of the engine is certainly another area where the fuel trims are affected. I'm sure if it's never been done on your higher mileage N54 that it needs to be done badly. That certainly would explain a lot of the fuel being trimmed out.

[CoffeeBean]

Originally Posted by A418t81

Not sure that I'm part of that group. The VE of the engine is certainly another area where the fuel trims are affected. I'm sure if it's never been done on your higher mileage N54 that it needs to be done badly. That certainly would explain a lot of the fuel being trimmed out.

Oh ok, I remember someone having a 335is on there so I was thinking it was you. Send a request to join if you want. The creator had nice Nike polo shirts made with the logo and we meet up at Cars & Coffee on Saturdays @ Hoover Tactical a good bit. We stay pretty active on the group page. /thread jacking over

Will do a walnut blast as soon as I can. Thanks for the help.

[Eternal_SIR]

did my first 7.1 stage 1 91 octane log today. does anything stand out that should be of concern? thanks in advance. Outside temp around 57 degrees F

http://datazap.me/u/eternalsir/log-1...26-27-28-29-30