[335e92tx]

Originally Posted by dsocold

i hope i did this right, i used mhd auto log feature from 3rd gear floored it till redline

http://www.datazap.me/u/bxdinster/lo...&data=3-10-21#

this is my first data log every runing mhd stage 2 93oct on a fbo car minus an intake system

3rd gear WOT

I think you have a boost leak or something. You are consistently 2psi below target. I think you might be seeing a 30FF before long. You should be at 16+ consistently with that map and you rarely see above 13. See if you can get some soapy water and spray down the couplings and then go for a drive. I Doubt it will show if you just hammer it static with no load. That I can see most other aspects are ok but you wont really get a complete picture of timing loads until you get boost and fueling right.

Originally Posted by Walletsr

The log pictured was with e40 but it is doing the same thing on 93 I have the fuel it stage 2 lpfp. I took it out and checked everything last night and all was good. Only thing I could think of is lpfs is bad

Google "E90 fuel pump control unit"

[Smokey33]

Originally Posted by 335e92tx

what is the hardware again? FBO? Aftermarket CP and Dvs? Any of that been touched lately?? I cant recall the specifics..

Evolve Catless DP's
BMS DCI
VRSF 7" Intercooler
VRSF Charge pipe

[335e92tx]

Originally Posted by Smokey33

Cant find a leak, no idea what It could be.

Originally Posted by Smokey33

Evolve Catless DP's
BMS DCI
VRSF 7" Intercooler
VRSF Charge pipe

Well, I dont think I see signs of a leak. You are really close to boost targets most the time. There seems to be a BOOST set limit that is also what you are bumping up against. In fact (and this is where I move outside of by area of knowledge), it seems that as the RPM goes up and the DME tries to keep boost near target, the WGs are staying closed more to try to give you the boost you need, And even then its not very far down from target (.5 psi) but the boost set limit is around 17.5 there. Has dimitri seen that log? It would be interesting to know what the set limit is for. I dont think I see that in my logs from him but I did not change from default logs. IF he asked you to include that I dont fully understand why.

Now, having said all that, as it does move into the 6000 range, DC is consistently around 60percent (and moving up). ITs not gonna give you much more boost there I would not think. Its close to 17. In my logs I'm about 16 at that rpm and 55percent DC. So there is a little more headroom for me to make boost. But I would think you could be putting more in up there. Which version of this map is it from Dimitri? Hes given you at least 2 previous right?

[Smokey33]

That was about 2 maps ago I think.....

Iam getting a friend to check it out for me, he has a smoke machine. At least ill know for sure then.

Dimitri thinks there is a little leak, so I believe there is hehe, he knows what he's doing afterall.

Thanks for the response.

[335e92tx]

Originally Posted by Smokey33

That was about 2 maps ago I think.....

Iam getting a friend to check it out for me, he has a smoke machine. At least ill know for sure then.

Dimitri thinks there is a little leak, so I believe there is hehe, he knows what he's doing afterall.

Thanks for the response.

Well, yep, if he says so. I Would think it would be larger to be causing probs... I guess if all else fails go and reseat connections. I would start with cold side since its easier normally.

[Silent9n54]

How accurate is TORQUE ACTUAL VALUE (Nm ) on the logs ??

i got a 335i stock running E25 ots map and im getting 640+ Nm ( 475+ torque)

[RSL]

That's not actual torque output to the crank or wheels, it's an internal value used by the DME. 700wtq cars could set torque output to 250nm, just like a 300wtq car could set it up to 1000nm. If you want to know what your car is relatively putting out, go to a dyno.

[335e92tx]

RSL certainly has more experience than I, but, as I understand it, its is relative just not transferable. In other words, you do want to see increases from log to log as output (hopefully ) increases, but it can't be compared to a log for another vehicle. I think its also of use if you see big changes after shifts. IF you see it drop drastically and then slowly come back up, it could be the DME pulled power to minimize what it interpreted as either a loss of traction or some other event that exceeded its normal parameters.
And in that a case a custom tune can work thru those DME defaults.

[RSL]

I wasn't saying anyone would want to tune it 250nm, just that it's not a measured output of the motor. The values are defined by BMW/tuners/users in the tables. Stock, it might be set close to reality originally, but only BMW would really know. Some people think it's an on-board dyno or something (which is what the post sounded like to me) and that's not the case.

You essentially want at least enough torque output dialed in that the transmission doesn't slip for your actual tq level, but not so much that it hits limiters or causes timing issues.

[335e92tx]

Originally Posted by RSL

I wasn't saying anyone would want to tune it 250nm, just that it's not a measured output of the motor. .

I wasn't referencing your specific 'output' either. Just the change of + or - from a previous event for the same vehicle.

[Silent9n54]

i never thought that the Nm is gonna be right on the money like a dyno but i can definitely see it rising as i have progressed thru stages and octane ratings, seems a bit more precise then the "butt dyno" when going up octane ratings

E25 map definitely trumps stage 1 and 1+ for me even on the Butt dyno lol

[RSL]

Originally Posted by shanker604

i never thought that the Nm is gonna be right on the money like a dyno but i can definitely see it rising as i have progressed thru stages and octane ratings, seems a bit more precise then the "butt dyno" when going up octane ratings

E25 map definitely trumps stage 1 and 1+ for me even on the Butt dyno lol

Load, RPM and other factors effect torque output values, which means just about everything effects it, from boost to weather to AFR to VANOS. Even if all other tables and variables remained the same, just more boost (load) will increase it and how much per load can be easily altered.

It's not a remotely accurate gauge of actual torque from the motor. 18psi on 93 octane.

[Silent9n54]

im sure you know more about this stuff then me , but looking at 100s of logs on this site ive never seen a constant 1000nm or a constant nm at all.... not sure why that log shows a constant Nm

[RSL]

The point I was trying to make is that the torque output values can be set anywhere (within limits), regardless of actual torque output from the motor, like I did above. It if were following actual torque output of the motor, it wouldn't be like any curve you see in most logs.

It's perfectly flat at 1000nm because that's the ceiling, but can be tuned pretty flat at any output.

[jazz5000]

Could someone take a look at my log file

MHD Stage 2+
FBO

http://www.datazap.me/u/jazz5000/log...3-4-5-13-14-23

[Meatos]

Originally Posted by jazz5000

Could someone take a look at my log file

MHD Stage 2+
FBO

http://www.datazap.me/u/jazz5000/log...3-4-5-13-14-23

Looks good

[335e92tx]

Originally Posted by Meatos

Looks good

yeah, I agree. There was a little something abnormal here were you exceeded boost target and it closed throttle a bit.. Id just watch for that.. prob during spool. I think that ends about 2500.

[drudixon]

Didn't really get a chance to wot for long. Very pleased though. Did the xhp mod with mhd e25 on manual. Does appear a fuel pump is in the near future.

http://www.datazap.me/u/drudixon/log...ark=17-540-544

[Walletsr]

Mhd e40 fbo and fuel it stage 2 lpfp. Just replaced lpfs my low pressure fuel psi keeps jumping up and down. last time I ran this map 22 psi was target why is it 18 now?
http://www.datazap.me/u/walletsr/e90...-23&zoom=20-70

[335e92tx]

Originally Posted by Walletsr

Mhd e40 fbo and fuel it stage 2 lpfp. Just replaced lpfs my low pressure fuel psi keeps jumping up and down. last time I ran this map 22 psi was target why is it 18 now?
http://www.datazap.me/u/walletsr/e90...-23&zoom=20-70

Last time? I only see this other log out there.

http://www.datazap.me/u/walletsr/mhd...-25&zoom=28-81

This one with e40 looks good. Timing looks right, Close to targets (a little variation on boost up high)- AFR relatively lean for E but not bad - trims close.. it would be nice to what changes after a shift.. you might find something there.
But I wouldnt touch it.

[335e92tx]

Originally Posted by drudixon

Didn't really get a chance to wot for long. Very pleased though. Did the xhp mod with mhd e25 on manual. Does appear a fuel pump is in the near future.

http://www.datazap.me/u/drudixon/log...ark=17-540-544

What I offered on the NA forum

Originally Posted by 335e92tx

Post it in the thread above. Better eyes than mine for this stuff...

But, your LPFP is right at the limit even on e25. And I really dont like what cyl1 is doing much (at least on the first run you did in 3rd and 4th). IT seems to be retarding a lot more than the others. Any history for that cyl? Done a plug or coil on it? Got one around you can swap and see what happens? Second run from 60 to 94 looks better.

Thats pretty lean on the top for an ethanol map. Again, second run looks better than first. Closer to 12 even for that. Little taper there on the boost. But thats after 6000 so just plan on shifting about 6500