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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > FMIC vs Charge Pipe?



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      03-23-2012, 09:14 PM   #1
aflatau
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FMIC vs Charge Pipe?

OK hypothetically speaking if you had to do one upgrade vs the other which one would you pick first and why? Upgrading the FMIC or charge pipe?

My personal choice I think would be the FMIC - but I could be wrong.
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      03-23-2012, 09:17 PM   #2
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Quote:
Originally Posted by aflatau View Post
OK hypothetically speaking if you had to do one upgrade vs the other which one would you pick first and why? Upgrading the FMIC or charge pipe?

My personal choice I think would be the FMIC - but I could be wrong.
Fmic
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      03-23-2012, 09:17 PM   #3
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FMIC. Upgrading the charge pipe does not yield any power gains, just allows for a way to run BOVs along with the reassurance that it will not pop off.
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      03-23-2012, 09:25 PM   #4
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FMIC for sure!!!
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      03-23-2012, 09:32 PM   #5
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unless your damn charge pipe explodes at 13.5-14 psi lol
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      03-23-2012, 09:34 PM   #6
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Quote:
Originally Posted by eyelobes View Post
unless your damn charge pipe explodes at 13.5-14 psi lol
you never know... but mine is still holding at 16-17psi... Will get it upgraded anyway for meth
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      03-23-2012, 09:35 PM   #7
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Ran the stock chargepipe and dv's with no problems with fbo's on 93 octane @15-16psi with no problem..

So my vote is DEF FMIC
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      03-23-2012, 09:39 PM   #8
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      03-23-2012, 09:42 PM   #9
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FMIC was one of the best mods I've put in. IATs used to rise like crazy even in Oregon's weather (<40F at night). With the new FMIC, they constant and very low. recovery time is amazing as well.
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      03-24-2012, 12:47 AM   #10
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Well, meth gives you more hp period. I am pretty sure meth + charge pipe is still better hp/$ than the fmic. So i actually would opt for cp with meth bong ant get the meth kit next. Then save the fmic for last.
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      03-24-2012, 12:54 AM   #11
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Quote:
Originally Posted by aflatau View Post
OK hypothetically speaking if you had to do one upgrade vs the other which one would you pick first and why? Upgrading the FMIC or charge pipe?

My personal choice I think would be the FMIC - but I could be wrong.
I highly suggest you do more research on your mods before you start modding. Your question clearly shows you have no idea what a charge pipe or an FMIC does... look these up first...
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      03-24-2012, 02:15 AM   #12
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Quote:
Originally Posted by skim7x View Post
I highly suggest you do more research on your mods before you start modding. Your question clearly shows you have no idea what a charge pipe or an FMIC does... look these up first...
actually I know what both do, but thanks.
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      03-24-2012, 02:46 AM   #13
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FMIC would be last mod. Go DP's then CP/Meth assuming u already have a tune.
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      03-24-2012, 03:07 AM   #14
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Quote:
Originally Posted by PR3CI5N View Post
FMIC would be last mod. Go DP's then CP/Meth assuming u already have a tune.
what he said. I'm on a stock charge pipe with stock DVs and a stock FMIC and I run more boost than most. Never blew a charge pipe and when I turn it up to 18-19psi my IATs are still at or below ambient with meth.

Tune plus intake first. Then LSD if you are RWD like most (depending on your budget), then meth or DPs, depending on whether you want more sound first or more power, then whatever else will help incrementally. Just my humble sometimes misinformed opinion. My car is kind of fast though and is just fine with lots of severe abuse. I assume that a FMIC will help overall efficiency generally speaking, and will help more without meth than with meth. some people don't want to run meth though. Hell, just get them both at the same time and call it a day
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      03-24-2012, 05:48 AM   #15
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Hello,

I know this will sound stupid but What is FMIC please??

thanks
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      03-24-2012, 08:39 AM   #16
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Front mounted intercooler.

Get both
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      03-24-2012, 11:35 AM   #17
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Isn't the safe reason people change their stock CP/diverter valves is to take the pressure off the turbo seals? I would do FMIC before charge pipe, and just swap out DV's.
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      03-24-2012, 12:15 PM   #18
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FMIC, CP adds very minimal power unless its combined with methanol.
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      03-24-2012, 12:51 PM   #19
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Quote:
Originally Posted by aflatau View Post
actually I know what both do, but thanks.
Ok, assuming you do know the difference, why would you even think getting a charge pipe before an fmic would make any difference. If you have a broken or leaking charge pipe, then get a new charge pipe. If not, get an fmic...
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      03-24-2012, 01:51 PM   #20
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As most people have said, FMIC would be the most beneficial.

Assuming you have a tune, if you are worried about blowing your stock DVs off, get the CP. As others have said, they are running 14-16 and are just fine. In some cases, it will blow off because of the added boost.

So, FMIC recommended, but CP if you're concerned.
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      03-24-2012, 03:20 PM   #21
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Quote:
Originally Posted by Jeff@topgearsolutions View Post
FMIC, CP adds very minimal power unless its combined with methanol.
I'm not trying to be nitpciky... Just making sure I'm not missing anything. Say that you have methanol injection and boost up to 17-19 psi from time to time with a stock CP and stock DVs, an aftermarket charge pipe wouldn't add power persey, it would just kind of reinforce that nothing bad would happen if it would in the first place, right? According to my limited and sometimes misinformed understanding, a charge pipe doesn't add any power but just provides a stronger force against boost leaks from the stock DVs.

Your insight is appreciated Jeff.

Sorry if this could be considered off topic
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      03-24-2012, 03:55 PM   #22
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If you don't have a tune that would be the first thing to get. After the tune some will say do downpipes or downpipes and meth etc. My order Cobb tune stage1 as of last night Spearco FMIC w/twin Raptor BOV on stock chargepipe running Cobbstage1+ (I will change my chargepipe once I run a meth set-up), next week downpipes and dci's will run Cobb stage2+, last upgrade would be meth. Use the search engine there are alot of threads with feedback usually with dyno charts
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