[Saif2018]

Originally Posted by megafinz

Did a smoke test a while (more than a year for sure) ago while trying to diagnose overboost issues, but everything seemed okay, solved the issue by replacing boost solenoids. Did not check anything else recently, but will do, thanks.

Is there a point in trying different map versions to verify this? Digging through the thread I see you like the v7.1.

Personal preference really, I prefer V7.1 as do others, it has slightly less boost/timing and lower WGDC and seems to be quite snappy whereas others prefer V9, which has more timing and boost and I found it to be more progressive.

I would recommend changing all vacuum lines if you haven't done so, then re log. I had some minor boost leaks which turned out to be a vacuum canister which had a crack at the bottom connection point and worn vacuum lines.

If you done the boost solenoids then that's one less thing to worry about.

[megafinz]

Saif2018 got one more question after a bit more digging through the thread: does IAT look OK on my graphs? It starts with 90F and then climbs to 100F by the end of the 3rd gear and finally reaches 120F at the end of the run generally. Yesterday it was around 70F outside, runs were on the road, not on a dyno.

Thanks for you help.

[Saif2018]

Originally Posted by megafinz

Saif2018 got one more question after a bit more digging through the thread: does IAT look OK on my graphs? It starts with 90F and then climbs to 100F by the end of the 3rd gear and finally reaches 120F at the end of the run generally. Yesterday it was around 70F outside, runs were on the road, not on a dyno.

Thanks for you help.

No worries.

IAT's climbing a bit too high in my opinion, gear after gear pull.

Which intercooler are you running?

[megafinz]

Originally Posted by Saif2018

No worries.

IAT's climbing a bit too high in my opinion, gear after gear pull.

Which intercooler are you running?

FMIC is Wagner EVO 2 Comp.

[Saif2018]

Originally Posted by megafinz

FMIC is Wagner EVO 2 Comp.

I'd double check IC connection points, that IC should be good.

Are the temps dropping fast after a pull?

What was the ambient temp when it rose to 120F?

Couldn't see any timing corrections due to high IAT's so I'm guessing it's fine, so long as it is dropping IAT's reasonably quickly after pulls,

[megafinz]

Originally Posted by Saif2018

I'd double check IC connection points, that IC should be good.

Are the temps dropping fast after a pull?

What was the ambient temp when it rose to 120F?

Yeah, didn't log it, but they drop quite fast. Could this be connected to high WGDC values? I mean could turbos working hard to meet target boost cause a lot of heat to build up under the hood or something?

The ambient was 70F.

EDIT: Found this thread and most of the "long" run graphs kinda look the same as mine: https://www.e90post.com/forums/showthread.php?t=1267986

[Saif2018]

Originally Posted by megafinz

Yeah, didn't log it, but they drop quite fast. Could this be connected to high WGDC values? I mean could turbos working hard to meet target boost cause a lot of heat to build up under the hood or something?

The ambient was 70F.

EDIT: Found this thread and most of the "long" run graphs kinda look the same as mine: https://www.e90post.com/forums/showthread.php?t=1267986

Wouldn't worry about your IAT's too much actually, it seems fine, 120F after multiple gear pulls isn't bad, as long as it drops reasonably quick after the pulls.

I don't think your IAT's would cause high WGDC,

I had much higher IAT's at stock intercooler and my WGDC didn't skyrocket.

High WGDC is likely due to some sort of boost leak, causing turbos to work hardeto try and meet boost targets, vacuum lines could be the culprit or charge pipe or Bov connection,

[megafinz]

Originally Posted by Saif2018

Personal preference really, I prefer V7.1 as do others, it has slightly less boost/timing and lower WGDC and seems to be quite snappy whereas others prefer V9, which has more timing and boost and I found it to be more progressive.

Well, turns out v7.1 is much better going around town. Car feels much more responsive and alive. Probably need a custom tune though.

[Saif2018]

Originally Posted by megafinz

Well, turns out v7.1 is much better going around town. Car feels much more responsive and alive. Probably need a custom tune though.

Yeah my butt dyno says the same lol.

Have you logged v7.1, wgdc should be lower than v9

[studio54]

Hello,

https://datazap.me/u/studio54/mhd-st...7-8-9-10-11-21

Here is a the first MHD Stage 2+ V7.1 91 oct log i made yesterday since the car got 2 new OEM mitsubishi and i would like to check with you if the new install is ok cause i am concerned with one thing but there are maybe other thing i cannot see.

For what i can understand :

- WGDC : ok
- IAT : ok
- Timings : ok
- Boost vs Boost target : ok
- Fuel pressure : ok
- Throttle : a small throttle closure when boost mean exceeded target
- Lambda AFR 1&2 : seems sychro, and ok, but i am no expert

- Stft 1 & 2 : this is my concern, is the gap ok ? I read that it should not gap more than 10% between banks, so i am approching this limit, should i worry ?

Should i reset lambda and fuel adaption or something ?

Thanks for reading

[Saif2018]

Originally Posted by studio54

Hello,

https://datazap.me/u/studio54/mhd-st...7-8-9-10-11-21

Here is a the first MHD Stage 2+ V7.1 91 oct log i made yesterday since the car got 2 new OEM mitsubishi and i would like to check with you if the new install is ok cause i am concerned with one thing but there are maybe other thing i cannot see.

For what i can understand :

- WGDC : ok
- IAT : ok
- Timings : ok
- Boost vs Boost target : ok
- Fuel pressure : ok
- Throttle : a small throttle closure when boost mean exceeded target
- Lambda AFR 1&2 : seems sychro, and ok, but i am no expert

- Stft 1 & 2 : this is my concern, is the gap ok ? I read that it should not gap more than 10% between banks, so i am approching this limit, should i worry ?

Should i reset lambda and fuel adaption or something ?

Thanks for reading

Log looks solid, I wouldn't worry about it. It will probably adapt after you drive it on the map for a while. 93 Oct would be better but I understand depends on availability.

[studio54]

Originally Posted by Saif2018

Log looks solid, I wouldn't worry about it. It will probably adapt after you drive it on the map for a while. 93 Oct would be better but I understand depends on availability.

Ok thanks

Yep exactly i ran the 93oct map in the past, and you can feel a good difference !

[_N54]

MHD V9 Stage 2+
E50
2" turbo inlets
cat-less down-pipes
DCI
Stage 2 LPFP

I notice my throttle is reading 80 on all or most of my logs...

https://datazap.me/u/n54tt/n54-mhd-v...20-23-24-28-29

[swiild]

Anyone want to share their thoughts about my log.

Manual
93oct
DCI
Downpipes
Intercooler
stock turbo's
stock lpfp
jb4 + mhd

https://datazap.me/u/robinbossuyt/lo...log=0&data=1-4

[studio54]

Originally Posted by ///S58

MHD V9 Stage 2+
E50
2" turbo inlets
cat-less down-pipes
DCI
Stage 2 LPFP

I notice my throttle is reading 80 on all or most of my logs...

https://datazap.me/u/n54tt/n54-mhd-v...20-23-24-28-29

81 is normal for throttle position, i believe it's the maximum for every one.
It's probably the maximum angle position open of the throttle body valve.

And 99.6 for accel pedal position.

[Saif2018]

Originally Posted by studio54

81 is normal for throttle position, i believe it's the maximum for every one.
It's probably the maximum angle position open of the throttle body valve.

And 99.6 for accel pedal position.

That's correct, mines at exactly those numbers too, even at stock map log.

[Saif2018]

Originally Posted by studio54

Ok thanks

Yep exactly i ran the 93oct map in the past, and you can feel a good difference !

Yeah, I don't want to run E85 but 93 Oct is the next best thing here, race fuel 95oct is too expensive.

Try running 93 Oct if you can, otherwise 91 oct.

[_N54]

I think i need to get a custom tune to take advantage of the inlets.

[Saif2018]

Originally Posted by swiild

Anyone want to share their thoughts about my log.

Manual
93oct
DCI
Downpipes
Intercooler
stock turbo's
stock lpfp
jb4 + mhd

https://datazap.me/u/robinbossuyt/lo...log=0&data=1-4

JB4 logs a bit different, a bit difficult to read...


Your WGDC are almost completely maxing out 96% at the top end, that's not good. Even when Boost target and Psi are close in the mids WGDC is in the 70+, and its way off target before 3500rpm, I am assuming you have a lot of lag below that rpm level?

Which map are you running on JB4, with back end MHD flash?

Have you replaced all Vacumn lines and checked Vacuum Cannisters and connection points, Charge pipe etc?

[HighLifeKJ]

Can anyone give any feedback on my log more specifically why my boost starts negative and is it normal not to reach boost target? Other mods include: DCI, 5"FMIC, 2" Inlets, Chargepipe, Forged DVs, DPs, & 3.5 Bar Map Sensor

https://datazap.me/u/anthonybeasley/...og=0&data=3-22

[Saif2018]

Originally Posted by ///S58

I think i need to get a custom tune to take advantage of the inlets.

Yes, normally inlets on OTS tunes leads to overboosting, some get away without getting overboosting codes. But to get the most out of it, you need a custom tune.

[Saif2018]

Originally Posted by HighLifeKJ

Can anyone give any feedback on my log more specifically why my boost starts negative and is it normal not to reach boost target? Other mods include: DCI, 5"FMIC, 2" Inlets, Chargepipe, Forged DVs, DPs, & 3.5 Bar Map Sensor

https://datazap.me/u/anthonybeasley/...og=0&data=3-22

Negative boost numbers off throttle is normal, but it looks like you probably have some sort of boost leak.

Unless your turbos are completely knackered they should get close to boost targets.