[romemedrano]

Copied and pasted from my BM3 FB post to try to learn more on datalog reading:

Im new to this BM3 life but here are logs of the new V7.0 Stage 2 E30 on my N55 EWG. This is my 1st ever log using the BM3 software and honestly Im gonna need to build one of those wifi things...Its difficult to do this one man on the road...lol

http://www.bootmod3.net/log?id=5e117542ae729b7e8357b89f

http://www.bootmod3.net/log?id=5e117565ae729b7e8357b8a0

http://www.bootmod3.net/log?id=5e117617ae729b7e8357b8a3

Having some overall "smoothness" issues as you can see ( sorry for such a shitty log , I live in the heart of Bay Area California so open road is tough). My two homies above dropped there input just wondering if anybody else had same issues on the latest V7.0 map so far?

I made a case already and Ill update it soon with PTF but figured this is my 1st ever BM3 datalog would be nice to share everyones inputs..

-plugs are new less than 500 miles right before i went stage 1. ( OEM )

-regapped them this morning to .022 as recommended

thanks hopefully this doesnt become a massacre of my noobness....

[ctt300]

I’m not sure if it’s your fuel quality or your original plugs, but your timing is not looking too good in some places, with it going to 0.something or lows like 3 or 4. I know since you're 6 speed that logs will look different than an 8 SPD auto, but shouldn't be too different, because you are getting significant overboost to over 20psi and maybe it's throttle closure creating your timing. What's your E %? Right before at 30% or more? HPFP PSI also sagging in places to 1400 from 2800 Target. Maybe too much E.

[romemedrano]

Originally Posted by ctt300

I'm not sure if it's your fuel quality or your original plugs, but your timing is not looking too good in some places, with it going to 0.something or lows like 3 or 4. I know since you're 6 speed that logs will look different than an 8 SPD auto, but shouldn't be too different, because you are getting significant overboost to over 20psi and maybe it's throttle closure creating your timing. What's your E %? Right before at 30% or more? HPFP PSI also sagging in places to 1400 from 2800 Target. Maybe too much E.

Somebody has told me possibly too much E. I'm gonna top off 1-2gal of 91 and see what happens. I premixed my 5gal fuel jugs to e30 so I don't have to keep on mixing on site so they should be fairly close to 30%....

What part of the reading state it could be too much E ? I'd like to learn !

[ctt300]

Running lean 14,15 AFR and HPFP PSI drop of about 1400 PSI from Target of 2800+. Try mixing to E25 and log

[romemedrano]

Originally Posted by ctt300

Running lean 14,15 AFR and HPFP PSI drop of about 1400 PSI from Target of 2800+. Try mixing to E25 and log

I'm gonna reflash the V7.0 meow , do a top of 91 and do a log tonight !

Thank you for showing me where to look. Appreciate it.

[romemedrano]

Originally Posted by ctt300

Running lean 14,15 AFR and HPFP PSI drop of about 1400 PSI from Target of 2800+. Try mixing to E25 and log

I need to log but I did drive the car today to a little suspension demo locally with members here. During my drive on the freeway to the location , there is still hiccups on the map....

Debating just running the rest of the half tank of e30 and try to see if the V7.0 stage 2 will be better.

The V6.4 e30 Stage 2 map was a lot smoother also but no logs.... lol

[romemedrano]

Just returned back to V6.4 and still a lot smoother than V7.0 ! I'll log my V6.4 map later tonight to see the difference.

[ctt300]

I recommend sending PTF a log of the new 7.0 map if you haven’t already and be sure to let them know that you are 6 speed. They’ll revise the map for you. Good luck!

[romemedrano]

Originally Posted by ctt300

I recommend sending PTF a log of the new 7.0 map if you haven’t already and be sure to let them know that you are 6 speed. They’ll revise the map for you. Good luck!

Yes sir I sent them the above logs . We'll see what they say!

[romemedrano]

update:

Got response from PTF, they like me to do the pulls at 3500rpm forward / log.

I told them ill flush my fuel tank with a few tanks of 91 to start fresh and will log e30 in a few weeks.

[designatedposter]

logs are strange, your target boost is 5 psi under what others are getting.

[romemedrano]

Originally Posted by designatedposter

logs are strange, your target boost is 5 psi under what others are getting.

yeah ill probably have to do this at 3am or so next time , its tough living in the major city to find open road. Also my 1st time doing logs on BM3 and the first 3 logs before the ones above I had issues connecting to my hotspot... I ended up doing logs "offline" .... I truly miss some cobb accessport logging lol.

[n55david]

It over boosts then boost goes way low... am i reading this wrong?

[romemedrano]

Originally Posted by designatedposter

logs are strange, your target boost is 5 psi under what others are getting.

I see what you mean 17boost pressure target , anybody know what e30 stage 2 v7 is suppose to target?

[romemedrano]

Originally Posted by Phantom10R

It over boosts then boost goes way low... am i reading this wrong?

from what Im reading it overboost at 20psi compared to target of 17psi then it shuts the throttle same time my HPFP shuts down to 1800psi vs target of 2900psi.

Im still trying to learn whats going on but thats all I can see...

[n55david]

Originally Posted by romemedrano

I see what you mean 17boost pressure target , anybody know what e30 stage 2 v7 is suppose to target?

About 17.2 target for me

http://www.bootmod3.net/log?id=5e1105b0ae729b7e8357b6f4

[romemedrano]

Originally Posted by Phantom10R

About 17.2 target for me

http://www.bootmod3.net/log?id=5e1105b0ae729b7e8357b6f4

yeah same for me 17.2... weird.

[thejeremyman9]

Originally Posted by romemedrano

from what Im reading it overboost at 20psi compared to target of 17psi then it shuts the throttle same time my HPFP shuts down to 1800psi vs target of 2900psi.

Im still trying to learn whats going on but thats all I can see...

Yeah i looked at the 3rd log and have never seen that. Looks like you start to overboost, HPFP starts to crash, you reach peak overboost, throttle closes and then target boost drops significantly for the rest of the pull (never seen that - maybe a protective measure in the tune?). It looks like the boost target is right at the limit of the fuel system, so you may need to drop ethanol content. You also get some weird throttle closures at the end of the pull. Overall, the car is just not happy.

Also, did you spin or hit a bump? You have a spike then drop in RPM which should only be attributable to one of those two things.

[romemedrano]

Originally Posted by thejeremyman9

Yeah i looked at the 3rd log and have never seen that. Looks like you start to overboost, HPFP starts to crash, you reach peak overboost, throttle closes and then target boost drops significantly for the rest of the pull (never seen that - maybe a protective measure in the tune?). It looks like the boost target is right at the limit of the fuel system, so you may need to drop ethanol content. You also get some weird throttle closures at the end of the pull. Overall, the car is just not happy.

Also, did you spin or hit a bump? You have a spike then drop in RPM which should only be attributable to one of those two things.

Nope no spin etc... I'm a manual trans I don't know if that matters... I'm gonna cycle my tank back to 91 and then I'll try if it does it on 91 also...

[thejeremyman9]

Originally Posted by romemedrano

Nope no spin etc... I'm a manual trans I don't know if that matters... I'm gonna cycle my tank back to 91 and then I'll try if it does it on 91 also...

Stock/OEM/original clutch? Could be clutch slipping... It occurs right when you start getting hit with high boost/overboost. Disable everything except RPM and MPH and you can clearly see it. If the wheels were not spinning the clutch was probably slipping. I dont see any other explanation for the disconnect between engine rpm and vehicle speed. I think 17 psi on a ethanol tune produces around the torque limit of a OEM clutch.

[romemedrano]

Originally Posted by thejeremyman9

Stock/OEM/original clutch? Could be clutch slipping... It occurs right when you start getting hit with high boost/overboost. Disable everything except RPM and MPH and you can clearly see it. If the wheels were not spinning the clutch was probably slipping. I dont see any other explanation for the disconnect between engine rpm and vehicle speed. I think 17 psi on a ethanol tune produces around the torque limit of a OEM clutch.

interesting i mean that makes sense... OEM clutch still 45k miles i knocked out 3 track days on them OEM tune etc ( I got the car at 40k miles used).

Clutch slip even if im in 3rd gear starting to do pull at 2500rpm ish? You are right thought wheels dont spin just overboost and then limps down.

[thejeremyman9]

Originally Posted by romemedrano

interesting i mean that makes sense... OEM clutch still 45k miles i knocked out 3 track days on them OEM tune etc ( I got the car at 40k miles used).

Clutch slip even if im in 3rd gear starting to do pull at 2500rpm ish? You are right thought wheels dont spin just overboost and then limps down.

Yes, clutch has the greatest tendency to slip in a low RPM, high load situation - e.g., in the higher gears when you start a pull from low in the RPM range, right when you first hit full boost. Take a look at some of the clutch threads and you should see similar things reported from other users who start experiencing it. I wouldnt doubt if you saw it in 4th gear as well, it might even be worse because of the lower mechanical advantage.

45k is not a ton, but also not low, especially if the PO was launching a lot or doing fast shifts with the stock CDV still there.