[Mnoob2]

Hi,
(Apologies in advance if this has been covered)
I was wondering how many BM3 users had to change their plugs to colder plugs and if it cleared up any issues like engine sputtering on acceleration. I ask because my car will most likely get new plugs next service, and they definitely won't install the NGKs.

MY17 pre-lci
Dinan CAI
Dinan IC
Dinan Stg1 turbo
Fabspeed cat dp
Pure inlute

BM3 log
http://www.bootmod3.net/log?id=5ae297ced10b4316215944fc
http://www.bootmod3.net/log?id=5ae297cfd10b4316215944fd

I also logged Dinan Stg4
http://www.bootmod3.net/log?id=5ae3bf1fd10b43711e45e111


Thanks in advance

[SeanWRT]

M2 has S55 plug from factory, which is already colder than other N55s. S55 plug isn't the best, but so far most have been fine with it when flashed.

BTW, your log is invalid. Log WOT pulls please.

And you will never be able to log Dinan. It's a piggyback, by nature will give OBD logger tampered info to begin with.

[Mnoob2]

Originally Posted by SeanWRT

M2 has S55 plug from factory, which is already colder than other N55s. S55 plug isn't the best, but so far most have been fine with it when flashed.

BTW, your log is invalid. Log WOT pulls please.

And you will never be able to log Dinan. It's a piggyback, by nature will give OBD logger tampered info to begin with.

Thanks, SeanWRT. I was concerned when I felt the shuttering and backed off. Will try to get one done this weekend.

[FSociety]

Only your first log you had a 5th gear WOT like sean said log where you feel the sputter

[DragonGate]

Originally Posted by FSociety

Only your first log you had a 5th gear WOT like sean said log where you feel the sputter

+1

[Yiruna]

Originally Posted by SeanWRT

M2 has S55 plug from factory, which is already colder than other N55s. S55 plug isn't the best, but so far most have been fine with it when flashed.

BTW, your log is invalid. Log WOT pulls please.

And you will never be able to log Dinan. It's a piggyback, by nature will give OBD logger tampered info to begin with.

Would running colder plugs give any potential benefit?

[Mnoob2]

Originally Posted by Yiruna

Would running colder plugs give any potential benefit?

Basically the question. Car is at 24k miles and I believe spark plug intervals is at 30k miles, so I am due soon. I ordered the NGKs and should be here this week and hopefully installed this week too. I hope to get some good logs in.

Once the stuttering gets sorted out, I am hoping to get a custom tune and take advantage of the stg1 turbo.

[Tryboz]

I did the colder spark plugs, didnt make a difference. I wouldnt waste the money or time. Was hoping that was issue since i cant seem to get a stg 2 working, still have issues with sputtering.

Just did this 10mins ago

http://www.bootmod3.net/log?id=5aea603fd10b436a5e7ebe35

BTW im 18 m2 with fmic, high flow cat, and chargepipe all ER product on stg 2 v5 93 shell pump gas. Florida Temp 69

[Mnoob2]

Originally Posted by Tryboz

I did the colder spark plugs, didnt make a difference. I wouldnt waste the money or time. Was hoping that was issue since i cant seem to get a stg 2 working, still have issues with sputtering.

Just did this 10mins ago

http://www.bootmod3.net/log?id=5aea603fd10b436a5e7ebe35

BTW im 18 m2 with fmic, high flow cat, and chargepipe all ER product on stg 2 v5 93 shell pump gas. Florida Temp 69

Thanks for your feedback and log.

[PackPride85]

Originally Posted by Tryboz

I did the colder spark plugs, didnt make a difference. I wouldnt waste the money or time. Was hoping that was issue since i cant seem to get a stg 2 working, still have issues with sputtering.

Just did this 10mins ago

http://www.bootmod3.net/log?id=5aea603fd10b436a5e7ebe35

BTW im 18 m2 with fmic, high flow cat, and chargepipe all ER product on stg 2 v5 93 shell pump gas. Florida Temp 69

Your hpfp is taking a dump mid run.

[Tryboz]

Originally Posted by PackPride85

Your hpfp is taking a dump mid run.

I know its the hpfp, not sure if it's defective on my car... dont see many others having similar results on here

[horsepower_and_hounds]

Originally Posted by Tryboz

I know its the hpfp, not sure if it's defective on my car... dont see many others having similar results on here

Not true, yours is exhibiting typical behavior. My LCI on stg 2 93 V4 will show a 1k delta in the HPFP sometimes at its most extreme case in 3rd WOT on boost target... it is always 500-600 psi delta at lowest point depending on the gear the pull is done in. Now this is at boost target and usually when it passes 5k rpm where the drop starts

Here is a 3/4/5/6 wot pull on a 50 deg morning..... it is really gonna be shit when it heats up and I have already upgraded my FMIC

http://www.bootmod3.net/log?id=5ad1e11ad10b433f99df6b23

[FSociety]

Originally Posted by Tryboz

I did the colder spark plugs, didnt make a difference. I wouldnt waste the money or time. Was hoping that was issue since i cant seem to get a stg 2 working, still have issues with sputtering.

Just did this 10mins ago

http://www.bootmod3.net/log?id=5aea603fd10b436a5e7ebe35

BTW im 18 m2 with fmic, high flow cat, and chargepipe all ER product on stg 2 v5 93 shell pump gas. Florida Temp 69

1- As mentioned your HPFP is dipping in 2nd & 3rd gear (each car is a little different unfortunately) do a "Request Update" on that map and rename the log with "HPFP CRASHING"
2- You have data gap (dead) in 4th gear then seems to pick up connections again in 5th gear
How are you logging ? WiFi Agent or Laptop ?
3- I would recommend updating the SDcard image if using WiFi Agent with latest version found on PTF's FAQ or if using laptop then are you using Online or Offline? I've seen this data gap with Tmobile users

Originally Posted by m2ruder

Not true, yours is exhibiting typical behavior. My LCI on stg 2 93 V4 will show a 1k delta in the HPFP sometimes at its most extreme case in 3rd WOT on boost target... it is always 500-600 psi delta at lowest point depending on the gear the pull is done in. Now this is at boost target and usually when it passes 5k rpm where the drop starts

Here is a 3/4/5/6 wot pull on a 50 deg morning..... it is really gonna be shit when it heats up and I have already upgraded my FMIC

http://www.bootmod3.net/log?id=5ad1e11ad10b433f99df6b23

I wouldn't worry too much about the delta as long as its not crashing for me its the important part
This log looks good, do you have a 1st-2nd gear one ?
My E30 map was crashing bad in 2nd gear (boost would go over target, car would go rich under 12) I provided logs and requested update PTF sent me a revision and working flawless now.
They made changes to fueling and boost control .. My 93 map are pretty amazing now
Although I'm on the N55 EWG Rom (M235) the M2 EWG has its own ROM/Software version different than other N55 EWGs

[Mnoob2]

NGK plugs installed, gapped, and the stuttering seemed to have gone away.

http://www.bootmod3.net/log?id=5aeb3d09d10b436a5e7ebfb7

Will need to log more.

[Nezil]

Originally Posted by Mnoob2

NGK plugs installed, gapped, and the stuttering seemed to have gone away.

http://www.bootmod3.net/log?id=5aeb3d09d10b436a5e7ebfb7

Will need to log more.

It's good that you found a solution to your issue, but you're running an OTS tune aren't you?

The requirements for Stage 1 BM3 OTS are none, and Stage 2 BM3 OTS are FMIC and DP.

If the OTS tunes require you to change plugs, there is surely something wrong with the OTS tune...

[Yiruna]

Apparently TTFS has not only the S55 HPFP retrofit, but something for stock and stage 1 turbo. Should fix your problem easily. Though if you were gonna go stage 2, I'd recommend the S55 retrofit, but that's a chunk of change man

[PackPride85]

Originally Posted by m2ruder

Not true, yours is exhibiting typical behavior. My LCI on stg 2 93 V4 will show a 1k delta in the HPFP sometimes at its most extreme case in 3rd WOT on boost target... it is always 500-600 psi delta at lowest point depending on the gear the pull is done in. Now this is at boost target and usually when it passes 5k rpm where the drop starts

Here is a 3/4/5/6 wot pull on a 50 deg morning..... it is really gonna be shit when it heats up and I have already upgraded my FMIC

http://www.bootmod3.net/log?id=5ad1e11ad10b433f99df6b23

Do you get that same delta on the stock map? That's usually a pretty big concern if you fuel pump is that far below its target.

[Daleb]

Originally Posted by Yiruna

Apparently TTFS has not only the S55 HPFP retrofit, but something for stock and stage 1 turbo. Should fix your problem easily. Though if you were gonna go stage 2, I'd recommend the S55 retrofit, but that's a chunk of change man

This is great news, being able to max out the oem turbo without secondary fuelling is much nicer imo. If you use the bm3/mhd ots flash for this pump upgrade does the price change, as in removing the cost of the TTFS base flash?

[Yiruna]

Originally Posted by Daleb

This is great news, being able to max out the oem turbo without secondary fuelling is much nicer imo. If you use the bm3/mhd ots flash for this pump upgrade does the price change, as in removing the cost of the TTFS base flash?

I was told the price is the same. It just gives you the OTS map for free, the 300$ is just for a custom tune by them.

[Rondavouz]

Do you have the part number of the plugs?
Thx
/Rondavouz

Originally Posted by Mnoob2

NGK plugs installed, gapped, and the stuttering seemed to have gone away.

http://www.bootmod3.net/log?id=5aeb3d09d10b436a5e7ebfb7

Will need to log more.

[horsepower_and_hounds]

Originally Posted by PackPride85

Do you get that same delta on the stock map? That's usually a pretty big concern if you fuel pump is that far below its target.

Since I flashed I have not gone back to stock only V4 & V5 of the flash. I guess I could do an experiment.....

[Daleb]

Originally Posted by Yiruna

I was told the price is the same. It just gives you the OTS map for free, the 300$ is just for a custom tune by them.

Cheers for the info.

Looking forward to the results of bm3/mhd plus this new hpfp. Sounds like there may be a few others on the horizon too.