[HoonsE90]

This is my first bmw, coming from a na 2005 mustang gt. All i can say is WOW i slept on bmw for way too long, this thing is a beast. Currently I have a 2010 e90 335i, running MHD Stage 1+, VRSF chargepipe, ARM DP's, BMS DCI's (purely for sound ). Currently my butt dyno feels like I'm pushing low 400's to the crank. I've datalogged with MHD to monitor my timing and even with tapping right up to 19PSI my timing correction doesn't stray away from 0. I ran with my dad's ISF back when he was stock and I was on stage 1 and he barely walked me. Now I'm on stage 1+ and he's got primary cat delete and a few other tasteful supporting mods to lead him to making about 460ish, we ran it again and the gap was the same, so we both came to the conclusion that my stage 1+ could've taken his stock F. My question is this, now that it's nearing winter and hot weather is gone, do you guys think I'll be able to run stage 2+ without an upgraded FMIC for the winter months? I already don't push my car when it's warm so I believe it would be fine but any input would be appreciated. I can provide datalogs as well if you guys would like to take a look at it, because I don't think I should be hitting 19PSI off of stage 1+ but I'm not complaining, the thing pulls like a train

Any advice on running stage 2+ without a FMIC? I'd also like to know if you guys think I'm making healthy power, recently I've done a fresh valve cover and gasket as well as fresh boost solenoids.

[mweisdorfer]

Originally Posted by HoonsE90

This is my first bmw, coming from a na 2005 mustang gt. All i can say is WOW i slept on bmw for way too long, this thing is a beast. Currently I have a 2020 e90 335i, running MHD Stage 1+, VRSF chargepipe, ARM DP's, BMS DCI's (purely for sound ). Currently my butt dyno feels like I'm pushing low 400's to the crank. I've datalogged with MHD to monitor my timing and even with tapping right up to 19PSI my timing correction doesn't stray away from 0. I ran with my dad's ISF back when he was stock and I was on stage 1 and he barely walked me. Now I'm on stage 1+ and he's got primary cat delete and a few other tasteful supporting mods to lead him to making about 460ish, we ran it again and the gap was the same, so we both came to the conclusion that my stage 1+ could've taken his stock F. My question is this, now that it's nearing winter and hot weather is gone, do you guys think I'll be able to run stage 2+ without an upgraded FMIC for the winter months? I already don't push my car when it's warm so I believe it would be fine but any input would be appreciated. I can provide datalogs as well if you guys would like to take a look at it, because I don't think I should be hitting 19PSI off of stage 1+ but I'm not complaining, the thing pulls like a train

Any advice on running stage 2+ without a FMIC? I'd also like to know if you guys think I'm making healthy power, recently I've done a fresh valve cover and gasket as well as fresh boost solenoids.

Go MHD stage 2

[stewbets]

If you've got logs, go ahead and share the datazap links. Personally, as long as you're logging i wouldn't be afraid to try 2+. The logs will tell the story.

As a side note, I didn't know they brought back the e90 in 2020 😆

[HoonsE90]

Originally Posted by stewbets

If you've got logs, go ahead and share the datazap links. Personally, as long as you're logging i wouldn't be afraid to try 2+. The logs will tell the story.

As a side note, I didn't know they brought back the e90 in 2020 😆

HA! Fixed that lol. Definitely not opposed to trying stage 2+ for a few pulls and logging that as well I’ll definitely take some logs tonight, any specific parameters that should be monitored?

[HoonsE90]

Originally Posted by mweisdorfer

Go MHD stage 2

I thought about going stage 2 but when I checked MHD’s site it seemed like stage 1+ is actually more aggressive than stage 2. Maybe I’m wrong?

[Vivek.]

Well what're your IATs?

[Saif2018]

Originally Posted by HoonsE90

I thought about going stage 2 but when I checked MHD’s site it seemed like stage 1+ is actually more aggressive than stage 2. Maybe I’m wrong?

If the ambient temps are low, you might get away with a few pulls in stage 2+, otherwise your IAT's will increase rapidly and timing corrections will likely kick in if you do multiple pulls.

Recommended to stick to the stage with supporting mods, especially if you want consistency.

If you have downpipes, stage 2 is recommended by MHD.

You can Datalog and compare stage 1+ vs stage 2.

[Smgs1992]

Why dont you just run the tune that is optimized for your mods?

[Vivek.]

Also to be noted that OP is in LA. Meaning "winter" will be 60F during the day, certainly not cold enough to eliminate the need for an FMIC

[stewbets]

Originally Posted by Vivek.

Also to be noted that OP is in LA. Meaning "winter" will be 60F during the day, certainly not cold enough to eliminate the need for an FMIC

LOL, I didn't pick up on that. Even still, if he's logging he's going to see the IAT spiking and the timing being pulled soon enough.

[ragingpanda]

91 octane piss fuel isn't going to help either. Stick with the recommended map until you have logs to verify it's running healthy.

[stewbets]

Originally Posted by HoonsE90

HA! Fixed that lol. Definitely not opposed to trying stage 2+ for a few pulls and logging that as well I’ll definitely take some logs tonight, any specific parameters that should be monitored?

IAT and timing correction for each cylinder are the main ones to look at for this issue.

[mweisdorfer]

Originally Posted by HoonsE90

I thought about going stage 2 but when I checked MHD’s site it seemed like stage 1+ is actually more aggressive than stage 2. Maybe I’m wrong?

You don't have an upgraded FMIC, but you have Catless downpipes correct?

[RoughKnight]

its all in the MHD faq on their website, and when uses give their two cents here its always overshadowed by people who say they have done this with that or that with this..

If u have a FMIC upgrade then run a more aggresive boost setting and map, do as many stages as your mods allow. simple and easy

[studio54]

it's up to you, if you do some occasonial WOT it will be ok, i passed a winter without FMIC with a Stage 1+ and did not had any problem. i went to 140+ IAT if i did like 3 full pulls in a row... just think to live monitor your IAT temps, don't pass 140+

[HoonsE90]

Originally Posted by Vivek.

Well what're your IATs?

Datalogged today, IAT's stayed relatively low but i did notice it peak at 158 briefly but that was after a few WOT pulls for datalogging purposes. Typically stayed around 120 for normal driving and would typically approach 140 on the first few pulls.

[HoonsE90]

Originally Posted by Saif2018

If the ambient temps are low, you might get away with a few pulls in stage 2+, otherwise your IAT's will increase rapidly and timing corrections will likely kick in if you do multiple pulls.

Recommended to stick to the stage with supporting mods, especially if you want consistency.

If you have downpipes, stage 2 is recommended by MHD.

You can Datalog and compare stage 1+ vs stage 2.

That's very true. Now that I'm thinking about it, I completely forgot but back when I first did my DP's, I just intended on going stage 1+ for a few days just to feel it out. I completely forgot that that was my original plan

I guess I forgot because my car's been running great and has been super reliable *knocks on wood severely*

[HoonsE90]

Originally Posted by Smgs1992

Why dont you just run the tune that is optimized for your mods?

That's a great question as I'm asking myself that right now as well

Definitely gonna go back to stage 1 until I get that FMIC so I can do it right

[HoonsE90]

Originally Posted by Vivek.

Also to be noted that OP is in LA. Meaning "winter" will be 60F during the day, certainly not cold enough to eliminate the need for an FMIC

60 is cold for us here lol, but in the night it gets to a whopping 45 degrees which is when I do the vast majority of my pulls. Any time during the day i stay in D and don't tempt myself

[HoonsE90]

Originally Posted by ragingpanda

91 octane piss fuel isn't going to help either. Stick with the recommended map until you have logs to verify it's running healthy.

E30 would be great to mix, I've got a few stations near me, but I don't want to hassle with calculating mixes so I'd probably wanna hold off on ethanol until I get a flew fuel system

[HoonsE90]

Originally Posted by mweisdorfer

You don't have an upgraded FMIC, but you have Catless downpipes correct?

That is correct

[HoonsE90]

Originally Posted by RoughKnight

its all in the MHD faq on their website, and when uses give their two cents here its always overshadowed by people who say they have done this with that or that with this..

If u have a FMIC upgrade then run a more aggresive boost setting and map, do as many stages as your mods allow. simple and easy

Appreciate the feedback!