[drapzzy]

Hey so i just data logged my car with bm3, im stage 1 with catless dp on a n26 motor and Im a noob when it comes to reading them so can anyone help me out
https://www.bootmod3.net/log?id=6158...90c67c64a9c6aa
https://www.bootmod3.net/log?id=6158...729b7f195b2bb6

[MadToy]

No intercooler upgrade? Boost looks good, but timing looks low and a bit erratic. Most likely due to high IAT and crappy 91 fuel. Nothing to worry about though.

[drapzzy]

Originally Posted by MadToy

No intercooler upgrade? Boost looks good, but timing looks low and a bit erratic. Most likely due to high IAT and crappy 91 fuel. Nothing to worry about though.

should I switch to the 91ACN tune then?

[drapzzy]

Originally Posted by MadToy

No intercooler upgrade? Boost looks good, but timing looks low and a bit erratic. Most likely due to high IAT and crappy 91 fuel. Nothing to worry about though.

im only rocking a stage 1 don't think I need a intercooler yet

[MadToy]

Not sure about the N26, but the N55 generally starts retarding timing around 120 degrees IAT. It reduces roughly 10%, then 25% at about 140 degrees, which is where you'll be on your shift to 4th. So even stage 1 could use an intercooler to maintain max power.

If you're in Cali, I would definitely run the ACN91 tune unfortunately.

[drapzzy]

Originally Posted by MadToy

Not sure about the N26, but the N55 generally starts retarding timing around 120 degrees IAT. It reduces roughly 10%, then 25% at about 140 degrees, which is where you'll be on your shift to 4th. So even stage 1 could use an intercooler to maintain max power.



If you're in Cali, I would definitely run the ACN91 tune unfortunately.

You would think that even fueling and chevron and shell would be good enough for Stage 1 I guess not

[MadToy]

I never had luck with Shell gas on any of my previous tuned cars - even 93. Always chasing knock and timing issues. Costco gas is working perfectly - 93 of course in NC.

[drapzzy]

Originally Posted by MadToy

I never had luck with Shell gas on any of my previous tuned cars - even 93. Always chasing knock and timing issues. Costco gas is working perfectly - 93 of course in NC.

its the opposite for us haha, costco has terrible quality gas

[sqwinny]

The timing is all over the place. the fuel system is keeping up with LPFP and HPFP targets. If you are in LA/Cali, you have more sulfur added to your gas for the entire state. Switch to ACN and it should clear up. On average you should be putting down around ~250whp from what your log shows on a dynapack. If you haven't yet, make sure you are running the stock plugs at .022 gap. your AFR looks pretty stable and in very safe ranges.

[drapzzy]

Originally Posted by sqwinny

The timing is all over the place. the fuel system is keeping up with LPFP and HPFP targets. If you are in LA/Cali, you have more sulfur added to your gas for the entire state. Switch to ACN and it should clear up. On average you should be putting down around ~250whp from what your log shows on a dynapack. If you haven't yet, make sure you are running the stock plugs at .022 gap. your AFR looks pretty stable and in very safe ranges.

good to hear how much is the decrease from normal 91 to ACN in terms of hp

[sqwinny]

That's something I do not know.

[drapzzy]

Originally Posted by sqwinny

That's something I do not know.

yea i never saw any thread or info on it but ill run it when i get home from school, but i havent noticed anything off with normal 91 but if logs say other wise then im more than happy to make the switch if it means the car runs healthier ill run a log with it as well and send it over to you! probably some time this week

[sqwinny]

Lol don't send it to me. Just post it and ask for feedback. Not trying to be your tuner 😅

[drapzzy]

Originally Posted by sqwinny

Lol don't send it to me. Just post it and ask for feedback. Not trying to be your tuner 😅

i didnt mean it directly to you haha, meant in the post

[drapzzy]

Originally Posted by drapzzy

Hey so i just data logged my car with bm3, im stage 1 with catless dp on a n26 motor and Im a noob when it comes to reading them so can anyone help me out
https://www.bootmod3.net/log?id=6158...90c67c64a9c6aa
https://www.bootmod3.net/log?id=6158...729b7f195b2bb6

Alright so update did a quick comfort mode pull cause I was lazy and the the ignition timing was already a dramatic difference NEW LOG: https://www.bootmod3.net/log?id=615b...90c67c64a9cee7

[sqwinny]

It looks drastically better but you really need to do a pull in 4th gear. There's not enough "load" to see how your car reacts. Making around the same power it seems too. Might have to change plugs or check cylinder 1 if it doesn't clean up.

[drapzzy]

Originally Posted by sqwinny

It looks drastically better but you really need to do a pull in 4th gear. There's not enough "load" to see how your car reacts. Making around the same power it seems too. Might have to change plugs or check cylinder 1 if it doesn't clean up.

ok ill do one later this week