IATs w/ FMIC

2011z435is · 05-12-2016, 06:47 PM

Hey everyone,

I recently installed a ER FMIC and i was expecting my IATs to be a bit lower. While the temps dont really move up much at all while under WOT they still do hover a good 30 degrees or so higher than ambient which surprised me.

For example, it was about 80 degrees out today and my IATs were around 108 just cruising down the highway.

Is this typical?

thanks

19E92 · 05-12-2016, 06:52 PM

Subb' - looking forward to hearing people's answers. I'm looking into either getting a FMIC or meth. Meth is much more effective from what I have read.

LQQKOUT · 05-12-2016, 07:22 PM

Here's some info.
http://www.e90post.com/forums/showthread.php?t=1166407

hellokitty · 05-13-2016, 12:07 AM

Do you have DCIs? Do your IATs go down once you give it some boost (not WOT).

2011z435is · 05-13-2016, 06:54 AM

Quote:

Originally Posted by hellokitty

Do you have DCIs? Do your IATs go down once you give it some boost (not WOT).

no, only a k&n filter.

yes they dip a bit as i give it throttle at first then slowly move up a couple and level out

BQTuning · 05-13-2016, 01:20 PM

On normal driving. without stop and go traffic that causes heat soak, the difference between your IAT and ambient temps should be about 20°f

The ER FMIC suppresses heat very well, better than most FMIC out there. Do a 3rd gear log from 2500 RM - 6000 RPM and post it. If you on MHD the default MHD parameters is fine.

jwebb335xi · 05-13-2016, 02:58 PM

Quote:

Originally Posted by 2011z435is

Hey everyone,

I recently installed a ER FMIC and i was expecting my IATs to be a bit lower. While the temps dont really move up much at all while under WOT they still do hover a good 30 degrees or so higher than ambient which surprised me.

For example, it was about 80 degrees out today and my IATs were around 108 just cruising down the highway.

Is this typical?

thanks

I haven't watched mine closely since last summer when I would see +10 to + 15 on highway and +15 or a bit more in stop and go..

My 1/4 mile logs show temps up to 140 after successive runs and waiting in line in between.

mike@x-ph.com · 05-13-2016, 03:46 PM

Quote:

Originally Posted by 2011z435is

Hey everyone,

I recently installed a ER FMIC and i was expecting my IATs to be a bit lower. While the temps dont really move up much at all while under WOT they still do hover a good 30 degrees or so higher than ambient which surprised me.

For example, it was about 80 degrees out today and my IATs were around 108 just cruising down the highway.

Is this typical?

thanks

If the car is idle temp will rise .. When cruising on a highway it should be closer to 20

Jeff@TopGearSolutions · 05-13-2016, 04:43 PM

Slow cruising and idling temps are pretty moot. It's wide open throttle that is really the only concern.

Did you compare the same scenario to stock? I bet you'd see the stock FMIC performing worse.

ER is one of the best FMIC available but she needs some air to breathe (or should I say pull heat out). Put the loud pedal down if you want to log.

jwebb335xi · 05-13-2016, 05:50 PM

Quote:

Originally Posted by Jeff@TopGearSolutions

Slow cruising and idling temps are pretty moot. It's wide open throttle that is really the only concern.

Did you compare the same scenario to stock? I bet you'd see the stock FMIC performing worse.

ER is one of the best FMIC available but she needs some air to breathe (or should I say pull heat out). Put the loud pedal down if you want to log.

There was a pretty large change for me when logging before and after fmic install. My logs for successive 3rd and 3-4th gear pulls showed AIT almost always under 115 in the summer, but with stock, 140 was hit easily... Only at a drag strip have seen that with my 5" ETS. If I tracked routinely, I would certainly step up to 7", however, because I understand at those higher AITs, my tune is pulling timing and power with it. Again, for a car that is 99.9% street use, I'm good..

Brule · 05-14-2016, 12:40 AM

Doesn't matter how big you go they still get hot. I'm having trouble with ad intercooler getting too hot and staying hot.

Jeff@TopGearSolutions · 05-14-2016, 10:59 AM

Quote:

Originally Posted by jwebb335xi

There was a pretty large change for me when logging before and after fmic install. My logs for successive 3rd and 3-4th gear pulls showed AIT almost always under 115 in the summer, but with stock, 140 was hit easily... Only at a drag strip have seen that with my 5" ETS. If I tracked routinely, I would certainly step up to 7", however, because I understand at those higher AITs, my tune is pulling timing and power with it. Again, for a car that is 99.9% street use, I'm good..

That sounds about right.

05-12-2016, 06:47 PM	#1
2011z435is Private First Class 58 Rep 96 Posts Drives: 2011 z4 sdrive35is Join Date: Feb 2016 Location: cleveland iTrader: (0)	IATs w/ FMIC Hey everyone, I recently installed a ER FMIC and i was expecting my IATs to be a bit lower. While the temps dont really move up much at all while under WOT they still do hover a good 30 degrees or so higher than ambient which surprised me. For example, it was about 80 degrees out today and my IATs were around 108 just cruising down the highway. Is this typical? thanks
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05-12-2016, 06:52 PM	#2
19E92 Private First Class 35 Rep 177 Posts Drives: '07 335i / '11 535i xDrive Join Date: May 2011 Location: Toronto, Canada iTrader: (2)	Subb' - looking forward to hearing people's answers. I'm looking into either getting a FMIC or meth. Meth is much more effective from what I have read. __________________ Monaco Blue E92 // BMS JB4 G5 ISO // BMS Backend Flash // Dual Cone Intake // ER Chargepipe // Dual HKS SSQV BOV Setup // BMW Performance Spoiler // 19" v710 Dolphin Grey // Aero Front Lip // M3 Sideskirts // Mtech Rear Bumper // Quad Tip Diffuser // Quad Exhaust //
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05-12-2016, 07:22 PM	#3
LQQKOUT Lieutenant 104 Rep 416 Posts Drives: 335XI Join Date: Jul 2011 Location: United States iTrader: (4)	Here's some info. http://www.e90post.com/forums/showthread.php?t=1166407 Last edited by LQQKOUT; 05-12-2016 at 07:35 PM..
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05-13-2016, 12:07 AM	#4
hellokitty Brigadier General 2949 Rep 3,734 Posts Drives: '17 M3 ZCP DCT Join Date: Jul 2010 Location: Southern California iTrader: (2)	Do you have DCIs? Do your IATs go down once you give it some boost (not WOT). __________________ 2017 F80 M3 ZCP / AA GESI DPs / Akrapovic Evo / BBS FI-R 19" / Bend Calibration ECUTEK Flex Fuel \| Bilstein B16 DDC + CS EDC / BMC Filters / BMS OCC / CSF HE / ESS CP / Nitto NT555R2 / PD Crank Hub / SPL Suspension / Uniden R7 / Wagner Top Mount IC 2021 Mini GP3 / BMC Filters / BM3 / Cary Jordan E30 / Wagner IC / Remus Race
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05-13-2016, 01:20 PM	#6
BQTuning Banned 475 Rep 4,392 Posts Drives: 2012 Z4 sDrive35i M Sport 6MT Join Date: Nov 2010 Location: bq@bqtuning.com iTrader: (0)	On normal driving. without stop and go traffic that causes heat soak, the difference between your IAT and ambient temps should be about 20°f The ER FMIC suppresses heat very well, better than most FMIC out there. Do a 3rd gear log from 2500 RM - 6000 RPM and post it. If you on MHD the default MHD parameters is fine.
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05-13-2016, 04:43 PM	#9
Jeff@TopGearSolutions 3472 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Slow cruising and idling temps are pretty moot. It's wide open throttle that is really the only concern. Did you compare the same scenario to stock? I bet you'd see the stock FMIC performing worse. ER is one of the best FMIC available but she needs some air to breathe (or should I say pull heat out). Put the loud pedal down if you want to log.
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05-14-2016, 12:40 AM	#11
Brule Brigadier General 841 Rep 3,190 Posts Drives: 2007 335i e92 6spd man Join Date: Jul 2013 Location: Darwin iTrader: (0)	Doesn't matter how big you go they still get hot. I'm having trouble with ad intercooler getting too hot and staying hot.
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