[diddlkiss]

Hey

I have a n54 335i 6at. 31k miles.
I use the 5-23map.but shiv tell me my"fuel trim is maxed"
so I use the 9-10map.this is my datalog of the stg0.map1.
I can't find the better gas.
Could you give me some advice?

thank you very much.

[enrita]

Advice on what?

[jdbretz]

What is your OL Fuel setting currently at? Also what are your mods? You may need to go with the Stage 0 map. Your IATs are skyrocketing and your timing doesn't look all that great. Also you should change the channels you are logging to include CAN DPW Throttle, CAN Fuel Trim Bank 2 and CAN AFR Bank 2. Those are kinda important to make sure things are good on both banks. Here is your log again just easier to read.

[diddlkiss]

Originally Posted by jdbretz

What is your OL Fuel setting currently at? Also what are your mods? You may need to go with the Stage 0 map. Your IATs are skyrocketing and your timing doesn't look all that great. Also you should change the channels you are logging to include CAN DPW Throttle, CAN Fuel Trim Bank 2 and CAN AFR Bank 2. Those are kinda important to make sure things are good on both banks. Here is your log again just easier to read.

My OL fueling is 90%.

[jdbretz]

What are your mods? You are only maxing your fuel trims in high RPMs which seems a little odd to me. Most logs I have seen max them in the midrange on boost onset and they steadily drop to redline. You could increase your OL Fuel setting to 95 to give you a little more fuel. What are the rest of your settings for map 1?

[diddlkiss]

Originally Posted by jdbretz

What are your mods? You are only maxing your fuel trims in high RPMs which seems a little odd to me. Most logs I have seen max them in the midrange on boost onset and they steadily drop to redline. You could increase your OL Fuel setting to 95 to give you a little more fuel. What are the rest of your settings for map 1?

I 'm sorry,because my english not very well.
I'm in China, and using #97gas here. Our gas is not so good as in the US.
I have performance parts list below but I do not feel a significant perfomance improve.
Could you please give me some suggestions?
My car is 2010 E90 6AT 30,000miles .
AFE INTAKE
VISHNU CHARGE
AFE DONWPIPE(Smell stink, I have to delete it)
Akrapovic catback
Quaife LSD
Bilstein PSS10
and 19"wheel with 235-35-19 275-30-19 brigestone RE-11
Brembo GT

The temperature is 24.5C(76F).
My car 0-100km at 4.9s.
But 100-200km at 11.5s
and 400meter @ 13.4s 174.5km/h
It is too slow...
SInce I'm in China and few people play this, its very hard to get help.

[enrita]

Get an intercooler and meth kit.

[Jeff@TopGearSolutions]

Originally Posted by diddlkiss

My OL fueling is 90%.

Raise OL to 95. IF fuel trim exceed 34% then raise it to 100% if 95% isn't enough.

You just need to adjust settings in your tune. You would also benefit atleast from an intercooler.

[OpenFlash]

Judging by previous logs, the fuel quality in his area is not good. That being the case, there is only do much you can do with it unless you find a way to either increase octave or make the car more resistant to knock. The simplest thing to do would be to upgrade the intercooler. That will improve performance and relieve much of the burden of having to run higher boost, with poor fuel during hot China summers.

[jdbretz]

Originally Posted by enrita

Get an intercooler and meth kit.

+1 For an ambient air temperature of 76* your IATs are raising way too high. The DME will pull timing and the Procede will pull boost as well. A meth kit or an upgraded intercooler will help you out a lot and provide much more power and consistency. I would go back to the most recent maps from Vishnu as well. The OL fueling is rescaled to give you more adjustment. Reset all the adaptations as well when you update to the new map.

[diddlkiss]

Originally Posted by jdbretz

What is your OL Fuel setting currently at? Also what are your mods? You may need to go with the Stage 0 map. Your IATs are skyrocketing and your timing doesn't look all that great. Also you should change the channels you are logging to include CAN DPW Throttle, CAN Fuel Trim Bank 2 and CAN AFR Bank 2. Those are kinda important to make sure things are good on both banks. Here is your log again just easier to read.

This is my datalog,CAN DPW THROOTLE.FUEL TRIM BANK2 AFR2....
The zip has 4files,the first is 5-23map,the second and 3rd is 11-25map maybe.and the 4th is 7-29map and autotuning is 2(ON)

[jdbretz]

The first log doesn't look like it was done in 3rd gear so there isn't too much to take from it. The 2nd log you are definitely maxing out your fuel trims and not hitting your AFR targets. I don't know why you are maxing your trims on a relatively low level of boost. Your timing doesn't look good either. That probably because of the quality of fuel you have and because you have a stock intercooler. You may need to switch to the Stage 0 map and see if they clears things up some. Your 3rd datalog does not contain any information in it. The last log looks the best fuel trim wise, but your timing is still terrible because of your poor fuel quality and high IATs. It also seems like you had wheel spin so I am guessing it was 2nd gear you logged in? When you do a log, you need to log from about 2000 rpms in 3rd gear and drive it to at least 6200 and shift into 4th gear. With all the logs we have seen, it is pretty safe to say you are not going to get more power with the quality of fuel you have. A meth kit would give you the power and consistency you are looking for. If you are really wanting to make more power, thats about all you can do. If you don't wish to add a meth kit, load the 5-23 Stage 0 map and see how that looks. You may even have to reduce the boost on the Stage 0 depending on how things look.

[diddlkiss]

Originally Posted by jdbretz

The first log doesn't look like it was done in 3rd gear so there isn't too much to take from it. The 2nd log you are definitely maxing out your fuel trims and not hitting your AFR targets. I don't know why you are maxing your trims on a relatively low level of boost. Your timing doesn't look good either. That probably because of the quality of fuel you have and because you have a stock intercooler. You may need to switch to the Stage 0 map and see if they clears things up some. Your 3rd datalog does not contain any information in it. The last log looks the best fuel trim wise, but your timing is still terrible because of your poor fuel quality and high IATs. It also seems like you had wheel spin so I am guessing it was 2nd gear you logged in? When you do a log, you need to log from about 2000 rpms in 3rd gear and drive it to at least 6200 and shift into 4th gear. With all the logs we have seen, it is pretty safe to say you are not going to get more power with the quality of fuel you have. A meth kit would give you the power and consistency you are looking for. If you are really wanting to make more power, thats about all you can do. If you don't wish to add a meth kit, load the 5-23 Stage 0 map and see how that looks. You may even have to reduce the boost on the Stage 0 depending on how things look.

Thank you so much for your help! Could you plz also tell me sth about "fuel trim".I 'm not very familiar about it. Thanks again

[diddlkiss]

Originally Posted by jdbretz

The first log doesn't look like it was done in 3rd gear so there isn't too much to take from it. The 2nd log you are definitely maxing out your fuel trims and not hitting your AFR targets. I don't know why you are maxing your trims on a relatively low level of boost. Your timing doesn't look good either. That probably because of the quality of fuel you have and because you have a stock intercooler. You may need to switch to the Stage 0 map and see if they clears things up some. Your 3rd datalog does not contain any information in it. The last log looks the best fuel trim wise, but your timing is still terrible because of your poor fuel quality and high IATs. It also seems like you had wheel spin so I am guessing it was 2nd gear you logged in? When you do a log, you need to log from about 2000 rpms in 3rd gear and drive it to at least 6200 and shift into 4th gear. With all the logs we have seen, it is pretty safe to say you are not going to get more power with the quality of fuel you have. A meth kit would give you the power and consistency you are looking for. If you are really wanting to make more power, thats about all you can do. If you don't wish to add a meth kit, load the 5-23 Stage 0 map and see how that looks. You may even have to reduce the boost on the Stage 0 depending on how things look.

In the pic. the nearest is sls and a stock n55. Mine is at the far end. My car is slowest...

[diddlkiss]

Originally Posted by jdbretz

The first log doesn't look like it was done in 3rd gear so there isn't too much to take from it. The 2nd log you are definitely maxing out your fuel trims and not hitting your AFR targets. I don't know why you are maxing your trims on a relatively low level of boost. Your timing doesn't look good either. That probably because of the quality of fuel you have and because you have a stock intercooler. You may need to switch to the Stage 0 map and see if they clears things up some. Your 3rd datalog does not contain any information in it. The last log looks the best fuel trim wise, but your timing is still terrible because of your poor fuel quality and high IATs. It also seems like you had wheel spin so I am guessing it was 2nd gear you logged in? When you do a log, you need to log from about 2000 rpms in 3rd gear and drive it to at least 6200 and shift into 4th gear. With all the logs we have seen, it is pretty safe to say you are not going to get more power with the quality of fuel you have. A meth kit would give you the power and consistency you are looking for. If you are really wanting to make more power, thats about all you can do. If you don't wish to add a meth kit, load the 5-23 Stage 0 map and see how that looks. You may even have to reduce the boost on the Stage 0 depending on how things look.

[jdbretz]

Originally Posted by diddlkiss

In the pic. the nearest is sls and a stock n55. Mine is at the far end. My car is slowest...

Either the guy with the N55 lied about having mods, or your were in accidentally in the Stock Map 0 on the Procede. Even with a poor launch, you would very quickly overtake a stock N55.

To keep things simple, fuel trims are what the DME uses to add or subtract fuel to meet the requested AFR. It can only add/subtract up to 33% before it reaches its limit of adjustment. By changing the OL Fuel setting you are essentially changing the start point to have more fuel at the beginning which allows the DME to be able to reach its AFR target without exceeding its max of 33%. That is a VERY basic description of what is going on as far I understand it. On your car, it is asking for more fuel than the DME can give it so it ends up running slightly leaner than the targeted AFR. Can you connect your procede to your computer, then open the User Adjustable Parameters, and take a screenshot or picture of what your setting are and post them in this thread? I am interested to see if maybe some of your setting are wrong.

[enrita]

OL increases the fuel pressure of the HPFP.

[diddlkiss]

Originally Posted by jdbretz

Either the guy with the N55 lied about having mods, or your were in accidentally in the Stock Map 0 on the Procede. Even with a poor launch, you would very quickly overtake a stock N55.

To keep things simple, fuel trims are what the DME uses to add or subtract fuel to meet the requested AFR. It can only add/subtract up to 33% before it reaches its limit of adjustment. By changing the OL Fuel setting you are essentially changing the start point to have more fuel at the beginning which allows the DME to be able to reach its AFR target without exceeding its max of 33%. That is a VERY basic description of what is going on as far I understand it. On your car, it is asking for more fuel than the DME can give it so it ends up running slightly leaner than the targeted AFR. Can you connect your procede to your computer, then open the User Adjustable Parameters, and take a screenshot or picture of what your setting are and post them in this thread? I am interested to see if maybe some of your setting are wrong.

Ive tried several times with that n55.its always faster. there should have no mods, as far as I can see. I always use map11-25,7-29 and 5-23. I take my laptop and can adjust Olfueling and waste gate.Everytime I change the program, I would conduct 12-1 restore in command center and thrrole－cal. in procede user interface.

[diddlkiss]

Originally Posted by jdbretz

Either the guy with the N55 lied about having mods, or your were in accidentally in the Stock Map 0 on the Procede. Even with a poor launch, you would very quickly overtake a stock N55.

To keep things simple, fuel trims are what the DME uses to add or subtract fuel to meet the requested AFR. It can only add/subtract up to 33% before it reaches its limit of adjustment. By changing the OL Fuel setting you are essentially changing the start point to have more fuel at the beginning which allows the DME to be able to reach its AFR target without exceeding its max of 33%. That is a VERY basic description of what is going on as far I understand it. On your car, it is asking for more fuel than the DME can give it so it ends up running slightly leaner than the targeted AFR. Can you connect your procede to your computer, then open the User Adjustable Parameters, and take a screenshot or picture of what your setting are and post them in this thread? I am interested to see if maybe some of your setting are wrong.

the pic is 5-23map stg0 map.

[diddlkiss]

Originally Posted by jdbretz

Either the guy with the N55 lied about having mods, or your were in accidentally in the Stock Map 0 on the Procede. Even with a poor launch, you would very quickly overtake a stock N55.

To keep things simple, fuel trims are what the DME uses to add or subtract fuel to meet the requested AFR. It can only add/subtract up to 33% before it reaches its limit of adjustment. By changing the OL Fuel setting you are essentially changing the start point to have more fuel at the beginning which allows the DME to be able to reach its AFR target without exceeding its max of 33%. That is a VERY basic description of what is going on as far I understand it. On your car, it is asking for more fuel than the DME can give it so it ends up running slightly leaner than the targeted AFR. Can you connect your procede to your computer, then open the User Adjustable Parameters, and take a screenshot or picture of what your setting are and post them in this thread? I am interested to see if maybe some of your setting are wrong.

Tonight,I uploaded the 9-10map.It is set the wagate at 50%.
I use the stg0 map1.
start ign corr 80%
start boost 45%
and OL fueling at 95%
I get this datalog.
and my user set in the pic.


Thanks again!

[jdbretz]

Change the Ignition Correction back to 100%. Unless you have race gas or methanol, you don't want to adjust that parameter. Your fuel trims are looking much better on that log. Your AFR is still doing some funny things, but it is better than before. You may want to get in contact with Shiv for some advice on why you were running a little lean for a while, then went very rich before leveling off. Your timing is still terrible, but that has a lot to do with you changing the Ignition Correction and because of the poor quality of your fuel.

[OpenFlash]

Unless you can improve the quality of your fuel (or add meth or fmic), you arent going to be able to support 15+psi with good consistency. It's just not possible. Given your fuel quality, I'd drop boost to 12-13psi until you can at the very least upgrade your fmic.