[hobbsie]

Originally Posted by chaungo

He needs to actually go the entire RPM range (3k-6.5k) in either 3rd or 4th

Or go from 3rd to the end of 4th gear (3k to 6.5k) to get a better reading. My take is realistically, 4-5k rpm in high gear will always have shit timing, but normally 5-6.5k will correct itself and be ok, from a realistic standpoint, at WOT, shifting at 6500rpm will drop you to 5k rpm or so, so from there is where timing and boost is important.






You'll be fine, on my PS2, I'm currently on shit halifax fuel and running their ACN91 + flexfuel kit helped immensely as it takes advantage of E10 to correct some timing.

The ticking noise is your injectors or the tensioner, I would not worry too much. I currently have 282,500km on my N55 right now lol

Holy that's some good news haha. Unfortunately in Sask we don't have any ethanol, and we also don't have anything higher than 91 in my city (Used to have 94 E10 but for some reason the gas station that had it got rid of it ). I'm not sure what else to try, so I think I will just leave it as is.

[thejeremyman9]

Where's the logs from when you added the 8oz of boostane?

[hobbsie]

Originally Posted by thejeremyman9

Where's the logs from when you added the 8oz of boostane?

No set boost target:
https://www.bootmod3.net/log?id=6315...0b436e020a8265
https://www.bootmod3.net/log?id=6315...0b43714a5216b8

Boost target set to 14:
https://www.bootmod3.net/log?id=6315...729b5c55ca5a4a
https://www.bootmod3.net/log?id=6315...729b5c55ca5a4b

[thejeremyman9]

Originally Posted by hobbsie

No set boost target:
https://www.bootmod3.net/log?id=6315...0b436e020a8265
https://www.bootmod3.net/log?id=6315...0b43714a5216b8

Boost target set to 14:
https://www.bootmod3.net/log?id=6315...729b5c55ca5a4a
https://www.bootmod3.net/log?id=6315...729b5c55ca5a4b

These were on the same tank of gas? The timing in the 14psi target logs looks good, almost no corrections (target is actually 12.7 in the log). But the no set boost target looks way worse. So i think your approach does make sense if you wanna be safe. You can probably run more in winter when your IATs arent over 100

[AmuroRay]

I would reup your plug gap.

[hobbsie]

Originally Posted by thejeremyman9

These were on the same tank of gas? The timing in the 14psi target logs looks good, almost no corrections (target is actually 12.7 in the log). But the no set boost target looks way worse. So i think your approach does make sense if you wanna be safe. You can probably run more in winter when your IATs arent over 100

The boost target is one thing I noticed. In the BM3 config menu in the Stage 2 91 ACN map, I 100% set the boost cutoff at 14 psi, so I assume the target being at 12.7 is to adjust for that overboost that is happening. I currently just have it set at 12 to be safe, and I now believe after checking out some videos and threads about BMW engine ticking noises, I believe that it may be a faulty injector, although I am not sure if these logs would show such a thing.

[hobbsie]

Originally Posted by AmuroRay

I would reup your plug gap.

Do you mean make the gap larger? If so, do you mean stock gap size? Between recommended gap by BM3 and BMW?

[thejeremyman9]

Originally Posted by hobbsie

The boost target is one thing I noticed. In the BM3 config menu in the Stage 2 91 ACN map, I 100% set the boost cutoff at 14 psi, so I assume the target being at 12.7 is to adjust for that overboost that is happening. I currently just have it set at 12 to be safe, and I now believe after checking out some videos and threads about BMW engine ticking noises, I believe that it may be a faulty injector, although I am not sure if these logs would show such a thing.

Gotcha. The fuel trims in the log looked normal. Typically you would have other symptoms if an injector was truly failing, like cylinder-specific misfires and codes. How confident are you there is a new/worse noise?

Originally Posted by hobbsie

Do you mean make the gap larger? If so, do you mean stock gap size? Between recommended gap by BM3 and BMW?

stock plugs (bosch) stock gap... the BM3 recommendation is not needed on 99% of cars and is a common trap people fall into. In some cases it actually makes the car run worse.

[hobbsie]

Originally Posted by thejeremyman9

Gotcha. The fuel trims in the log looked normal. Typically you would have other symptoms if an injector was truly failing, like cylinder-specific misfires and codes. How confident are you there is a new/worse noise?



stock plugs (bosch) stock gap... the BM3 recommendation is not needed on 99% of cars and is a common trap people fall into. In some cases it actually makes the car run worse.

Pretty sure. With all the windows up and in park, I can hear a slight ticking noise (a more emphasized injector noise) that gets quieter the higher the RPMs go.

[harkes]

I have never seen logs with worse timing than this. I am guessing you make very little extra power running stage1/2 over stage0 because timing is so poor. Complete waste of fuel. In my opinion, if you cannot achieve at least 8 degree of timing then lower your boost.

Running octane booster will be very expensive. Get a WMI kit and run 100% methanol, this will help you immensely!

[hobbsie]

Originally Posted by harkes

I have never seen logs with worse timing than this. I am guessing you make very little extra power running stage1/2 over stage0 because timing is so poor. Complete waste of fuel. In my opinion, if you cannot achieve at least 8 degree of timing then lower your boost.

Running octane booster will be very expensive. Get a WMI kit and run 100% methanol, this will help you immensely!

Wouldn't meth injection just be a crutch to the problem being fuel? Also would run me a lot of dough for something that may fix my problem, which I am not able to spend right now.

Not sure what anyone's thoughts on putting the car on the Stage 1 91 ACN tune at 12 psi until I can find something concrete. My next thought is to just dump the rest of the octane booster (around 24 ounces of Boostane Pro) in with half a tank of fuel just to confirm 100% that it is infact fuel that is my problem. If that is the problem, I'll tune the car to the stage 1 tune and leave it at that and anyone having the same issue have this thread as assurance. If not, then I will work on figuring out the problem, whether that is a bad coil(s), bad injector(s) or whatever it may be.

[thejeremyman9]

Originally Posted by hobbsie

Wouldn't meth injection just be a crutch to the problem being fuel? Also would run me a lot of dough for something that may fix my problem, which I am not able to spend right now.

Not sure what anyone's thoughts on putting the car on the Stage 1 91 ACN tune at 12 psi until I can find something concrete. My next thought is to just dump the rest of the octane booster (around 24 ounces of Boostane Pro) in with half a tank of fuel just to confirm 100% that it is infact fuel that is my problem. If that is the problem, I'll tune the car to the stage 1 tune and leave it at that and anyone having the same issue have this thread as assurance. If not, then I will work on figuring out the problem, whether that is a bad coil(s), bad injector(s) or whatever it may be.

Here's my recommended testing steps:

1. High dose of octane booster as you mentioned. What octane would those 24 oz to 8gal get you?

2. Try stock bosch plugs at stock gap

If neither of those work, need to evaluate if its worth trying coils, but honestly coils usually dont cause that problem... especially not all at once on all cylinders.

WMI is a reasonable solution. It provide extra fuel quantity, octane, and lowers IATs. It does add complexity though.

[harkes]

+1 for the stock ZR5TPP33. They work just fine all the way to 500whp - and at stock gap!

[hobbsie]

Originally Posted by thejeremyman9

1. High dose of octane booster as you mentioned. What octane would those 24 oz to 8gal get you?

Should be around 98 octane according to Boostane's mixing chart.

[thejeremyman9]

Originally Posted by hobbsie

Should be around 98 octane according to Boostane's mixing chart.

Then you should have basically perfect timing running the ACN and 91 maps. I would try both on that tank of gas. 2-3 logs on ACN, then flash 91 map, drive maybe 10 miles for adaptations, then 2-3 logs on 91 map

[hobbsie]

Here are the last 2 logs of testing with the 28 oz 8 gallon fuel mix, but I left the colder plugs in (not sure the other plugs will help THIS much). I'll test the stock plugs this weekend, but not sure that will solve my problem. Also, scanned my car and had this error: https://gyazo.com/062b41d456dc3609c3972afb28166035 dont believe it is a very good sign for the health of my engine...
Logs here
https://www.bootmod3.net/log?id=631a...0b4376d45fbb7c
https://www.bootmod3.net/log?id=631a...90c69a0b8114af

[thejeremyman9]

Originally Posted by hobbsie

Here are the last 2 logs of testing with the 28 oz 8 gallon fuel mix, but I left the colder plugs in (not sure the other plugs will help THIS much). I'll test the stock plugs this weekend, but not sure that will solve my problem. Also, scanned my car and had this error: https://gyazo.com/062b41d456dc3609c3972afb28166035 dont believe it is a very good sign for the health of my engine...
Logs here
https://www.bootmod3.net/log?id=631a...0b4376d45fbb7c
https://www.bootmod3.net/log?id=631a...90c69a0b8114af

Something is seriously wrong if you have negative timing with that much octane booster. That's incredibly bad timing in one of those logs. The superknock is consistent with how much fuel is being pulled. The car also seems to be running lean, but maybe because of misfires and unburned O2??

[lens]

Originally Posted by hobbsie

Here are the last 2 logs of testing with the 28 oz 8 gallon fuel mix, but I left the colder plugs in (not sure the other plugs will help THIS much). I'll test the stock plugs this weekend, but not sure that will solve my problem. Also, scanned my car and had this error: https://gyazo.com/062b41d456dc3609c3972afb28166035 dont believe it is a very good sign for the health of my engine...
Logs here
https://www.bootmod3.net/log?id=631a...0b4376d45fbb7c
https://www.bootmod3.net/log?id=631a...90c69a0b8114af

Could you make a single gear 2500 to 6500 rpm log? either 3rd or 4th gear.

Your logs are partial so it's pretty hard to get a good look at it.

[hobbsie]

Originally Posted by chaungo

Could you make a single gear 2500 to 6500 rpm log? either 3rd or 4th gear.

Your logs are partial so it's pretty hard to get a good look at it.

When I am doing these logs, the car is breaking up really bad and it feels like I am going to blow my engine, so no I am not going to keep it floored if it starts shaking and misfiring as much as it is when this is happening.

[hobbsie]

Originally Posted by thejeremyman9

Something is seriously wrong if you have negative timing with that much octane booster. That's incredibly bad timing in one of those logs. The superknock is consistent with how much fuel is being pulled. The car also seems to be running lean, but maybe because of misfires and unburned O2??

Any suggestions? At this point I want to just not touch it to make sure that I don't royally screw my engine and have some big time repair costs.

[thejeremyman9]

Originally Posted by hobbsie

Any suggestions? At this point I want to just not touch it to make sure that I don't royally screw my engine and have some big time repair costs.

MY suggestion is to install fresh OEM bosch plugs at stock gap (confirm it before installing), then flash down to stage 1 91 or ACN tune and log that. How confident are you that your NGKs are not counterfeit?

[hobbsie]

Originally Posted by thejeremyman9

MY suggestion is to install fresh OEM bosch plugs at stock gap (confirm it before installing), then flash down to stage 1 91 or ACN tune and log that. How confident are you that your NGKs are not counterfeit?

I bought the plugs from a NAPA Auto Parts store in my city so I am pretty sure they aren't counterfeit. I will try the stock plugs today and see if that helps any.