Post FMIC Mod Temps?

Ronin416 · 11-08-2011, 07:46 PM

Hello,

Curious if any owners (preferrably Cobb Accessport Owners) could tell me what their average temp over ambient temp where before and after with their FMIC modification.

The reason I'm asking I'm averaging atleast 14+F degrees over ambient and it just seems too high.

I rather not upgrade my map if there wasn't a substanial decrease in temps.

Thanks!

uniter · 11-08-2011, 08:14 PM

14 F over ambient isn't jack. What sort of romp were you giving the car when you got that average?

secretsquirrel · 11-08-2011, 08:17 PM

You're going to be over 14 degrees f if you're doing any kind of spirited driving. For instance, I was averaging about 85f with spirited driving in 60f degree weather. This is with a an aftermarket FMIC. With the stock IC I would probably see 105f. I'm running a procede and not a cobb (not sure how much that matters to what you're looking for).

BMWsky · 11-08-2011, 09:37 PM

I'm using a Cobb AP and use an ER FMIC, I usually see temps around 12to14 degrees above ambient with spirited driving. On the track, I've seen lower.

yandy · 11-08-2011, 10:29 PM

I have the ER FMIC and 14 sounds about normal on spirited/just driving around. Haven't really logged on road course, but can't imagine is too different.

Ronin416 · 11-10-2011, 12:22 PM

Thanks for the replies, 14F is usually on the low side and this off boost cruising on the highway at 60-70mph

rader1 · 11-10-2011, 01:12 PM

Quote:

Originally Posted by Ronin416

Thanks for the replies, 14F is usually on the low side and this off boost cruising on the highway at 60-70mph

I average the same on the stock FMIC when cruising at highway speed. I did a 1st through 3rd gear pull last weekend: ambient was 53F the charge air was 65F when i started and it was 97F when i shifted into 4th and let off the throttle. Im ordering an ETS next weekend and i'm very eager to see the difference.

zerep1 · 11-10-2011, 01:14 PM

if your on the stock 10-15 on cruise is normal

tom · 11-10-2011, 05:37 PM

What are you guys using for ambient temp? The temp in the middle of the gauges? I have an AMS FMIC and on the highway with either no or light throttle I see charge air temps >20F hotter than ambient. Recently, I had ambient temps (as shown in the gauge LCD) of <55F and my CAT was >75 when cruising. Is this normal?

That said, if I did a pull in 4th, my CAT went very low, bottoming out within 10F of ambient, so I know my FMIC is working under load.

zerep1 · 11-10-2011, 06:57 PM

do you have dual cones that could be the reason also with bigger intercoolers you need air flowing through them to reap any benefit

tom · 11-10-2011, 07:08 PM

Stock airbox for me. Doesn't seem like that should make a difference at cruising though.

11-08-2011, 07:46 PM	#1
Ronin416 Private First Class 15 Rep 101 Posts Drives: M5 Join Date: Mar 2008 Location: USA iTrader: (0)	Post FMIC Mod Temps? - difference? Hello, Curious if any owners (preferrably Cobb Accessport Owners) could tell me what their average temp over ambient temp where before and after with their FMIC modification. The reason I'm asking I'm averaging atleast 14+F degrees over ambient and it just seems too high. I rather not upgrade my map if there wasn't a substanial decrease in temps. Thanks!
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11-08-2011, 08:14 PM	#2
uniter Black on Black on Black. 43 Rep 532 Posts Drives: 335i/6mt Sport,Nav,Prem. Join Date: Feb 2010 Location: New Hope, PA iTrader: (1)	14 F over ambient isn't jack. What sort of romp were you giving the car when you got that average?
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11-08-2011, 08:17 PM	#3
secretsquirrel Colonel 160 Rep 2,328 Posts Drives: f80 Join Date: Dec 2010 Location: Far North Dallas iTrader: (2)	You're going to be over 14 degrees f if you're doing any kind of spirited driving. For instance, I was averaging about 85f with spirited driving in 60f degree weather. This is with a an aftermarket FMIC. With the stock IC I would probably see 105f. I'm running a procede and not a cobb (not sure how much that matters to what you're looking for).
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11-08-2011, 09:37 PM	#4
BMWsky Major 25 Rep 1,244 Posts Drives: 335i Join Date: Dec 2010 Location: Webster NY iTrader: (1)	I'm using a Cobb AP and use an ER FMIC, I usually see temps around 12to14 degrees above ambient with spirited driving. On the track, I've seen lower.
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11-08-2011, 10:29 PM	#5
yandy Lieutenant Colonel 117 Rep 1,971 Posts Drives: 2009 e92 MR "Civic" ///M3 Join Date: Feb 2009 Location: Miami, FL iTrader: (3) Garage List 2009 BMW M3 [0.00]	I have the ER FMIC and 14 sounds about normal on spirited/just driving around. Haven't really logged on road course, but can't imagine is too different. __________________ \|\| DCT \| ESS Tune \| ACM Test-pipes \| AA Green Filter \| Swift Spec-R Springs \| Stoptech ST-40 F \|\| \|\| My Youtube Channel \|\|
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11-10-2011, 12:22 PM	#6
Ronin416 Private First Class 15 Rep 101 Posts Drives: M5 Join Date: Mar 2008 Location: USA iTrader: (0)	Thanks for the replies, 14F is usually on the low side and this off boost cruising on the highway at 60-70mph
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11-10-2011, 01:14 PM	#8
zerep1 Lieutenant 40 Rep 464 Posts Drives: 335i E90, 328i F30, 230i G42, Join Date: Nov 2010 Location: Tampa, Florida iTrader: (1)	if your on the stock 10-15 on cruise is normal
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11-10-2011, 05:37 PM	#9
tom Enlisted Member 1 Rep 35 Posts Drives: Bmw 335i Join Date: Aug 2011 Location: Norcal iTrader: (1)	What are you guys using for ambient temp? The temp in the middle of the gauges? I have an AMS FMIC and on the highway with either no or light throttle I see charge air temps >20F hotter than ambient. Recently, I had ambient temps (as shown in the gauge LCD) of <55F and my CAT was >75 when cruising. Is this normal? That said, if I did a pull in 4th, my CAT went very low, bottoming out within 10F of ambient, so I know my FMIC is working under load.
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11-10-2011, 06:57 PM	#10
zerep1 Lieutenant 40 Rep 464 Posts Drives: 335i E90, 328i F30, 230i G42, Join Date: Nov 2010 Location: Tampa, Florida iTrader: (1)	do you have dual cones that could be the reason also with bigger intercoolers you need air flowing through them to reap any benefit
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11-10-2011, 07:08 PM	#11
tom Enlisted Member 1 Rep 35 Posts Drives: Bmw 335i Join Date: Aug 2011 Location: Norcal iTrader: (1)	Stock airbox for me. Doesn't seem like that should make a difference at cruising though.
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