Forced Induction Superchargers | Turbochargers | Intercoolers

FMIC Design Flaw

Thread Tools
 
Search this Thread
 
Old Jul 23, 2007 | 10:05 PM
  #1  
c5_from_jc's Avatar
Thread Starter
Teching In
 
Joined: Aug 2004
Posts: 22
Likes: 0
Default FMIC Design Flaw

I know I will get blasted for this, but does anyone agree with me that a FMIC that blocks air flow to the radiator is a poor engineering design choice? I know the FMIC lowers IATs nicely, but the car's coolant temps will heat up FAST under boost making it not too nice for long term acceleration. Can this be fixed?
Reply
Old Jul 23, 2007 | 10:15 PM
  #2  
NoGamesLS1's Avatar
TECH Resident
iTrader: (16)
 
Joined: Jul 2005
Posts: 800
Likes: 0
Default

Where do you suggest it be placed?
Reply
Old Jul 23, 2007 | 10:17 PM
  #3  
c5_from_jc's Avatar
Thread Starter
Teching In
 
Joined: Aug 2004
Posts: 22
Likes: 0
Default

Originally Posted by NoGamesLS1
Where do you suggest it be placed?

I don't have a suggestion, that is why I am asking the question. Maybe this is the reason NA is the way to go?
Reply
Old Jul 23, 2007 | 10:56 PM
  #4  
cablebandit's Avatar
9 Second Club
20 Year Member
iTrader: (37)
 
Joined: Nov 2001
Posts: 7,903
Likes: 1
From: Cleveland, OH
Default

mine gained 4 degrees of coolant temp in the 1/4
Reply
Old Jul 23, 2007 | 11:05 PM
  #5  
RW99's Avatar
TECH Resident
 
Joined: Jan 2004
Posts: 832
Likes: 0
From: Castro Valley, CA
Default

Depends on what you mean by "long term acceleration". On f-bodies, IMO few of us with full FMIC setups have problems cooling when we're driving at speed... it's when we've got to slow down into commute stop-and-go traffic that we start to overheat. That air dam at the bottom of the rad does a great job of scooping plenty of air up and through the radiator when the car's at 50+ mph. But I suppose you'd also run into similar problems at the track, if you're running fairly often on a hot day without shutting down in between.

I like my Griffin IC, and I like having big *** pusher fans mounted right on the radiator; that was the solution to my cooling woes. I lost the AC, but I wasn't using it on hot days anyway... because I'd overheat.

Consider a methanol kit if you really want to achieve low IATs.
Reply
Old Jul 23, 2007 | 11:12 PM
  #6  
Josh@MASPORT's Avatar
Closed Sponsor Account
iTrader: (3)
 
Joined: Jun 2007
Posts: 235
Likes: 0
From: Boca Raton
Default

i get the best of both worlds



Reply
Old Jul 23, 2007 | 11:20 PM
  #7  
Boostaholic's Avatar
TECH Addict
iTrader: (4)
 
Joined: Sep 2002
Posts: 2,542
Likes: 0
From: Boise, ID
Default

Originally Posted by c5_from_jc
I don't have a suggestion, that is why I am asking the question. Maybe this is the reason NA is the way to go?

my car with the biggest A2A intercooler that can be fit in front of a radiator on a camaro my car runs 160-170deg
Reply
Old Jul 23, 2007 | 11:32 PM
  #8  
code4's Avatar
9 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (30)
 
Joined: Apr 2004
Posts: 1,419
Likes: 0
Default

On my fbods the radiator is blocked anyway. It is the airdam below that directs air to the radiator. I believe my rad gets more air with the intercooler than it did before.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Jul 24, 2007 | 12:02 AM
  #9  
Boostaholic's Avatar
TECH Addict
iTrader: (4)
 
Joined: Sep 2002
Posts: 2,542
Likes: 0
From: Boise, ID
Default

i have no air dam either
Reply
Old Jul 24, 2007 | 12:21 AM
  #10  
Jditlfm's Avatar
12 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (26)
 
Joined: Apr 2005
Posts: 1,456
Likes: 0
From: Brockport NY
Default

Originally Posted by Josh@MASPORT
i get the best of both worlds
I like that setup a lot, that would probably work very well on a lt1 trans am.
Reply
Old Jul 24, 2007 | 05:06 AM
  #11  
EPP's Avatar
EPP
FormerVendor
iTrader: (22)
 
Joined: Mar 2003
Posts: 13,063
Likes: 2
Default

We haven't noticed a big difference in engine temp's with our f body front mount intercooler kits. Bob
Reply
Old Jul 24, 2007 | 05:51 AM
  #12  
Urban Legend's Avatar
TECH Cry Baby BOSS APPROVED!
iTrader: (5)
 
Joined: Jul 2005
Posts: 5,799
Likes: 2
Default

Originally Posted by c5_from_jc
Maybe this is the reason NA is the way to go?
N/A for the win!
Reply
Old Jul 24, 2007 | 05:53 AM
  #13  
engineermike's Avatar
TECH Addict
 
Joined: Jul 2005
Posts: 2,153
Likes: 3
Default

Originally Posted by c5_from_jc
... Maybe this is the reason NA is the way to go?
There are alot of reasons to go NA, but this isn't one of them. A turbo car with a FMIC running a few degrees warmer than stock will still make way more power than a stout NA setup.
Reply
Old Jul 24, 2007 | 05:56 AM
  #14  
engineermike's Avatar
TECH Addict
 
Joined: Jul 2005
Posts: 2,153
Likes: 3
Default

Originally Posted by NoGamesLS1
Where do you suggest it be placed?
Put it at the back where all the turbo's are going these days! Genius!
Reply
Old Jul 24, 2007 | 07:17 AM
  #15  
smokinHawk's Avatar
TECH Senior Member
iTrader: (48)
 
Joined: Jan 2002
Posts: 7,354
Likes: 1
From: Columbus, ohio
Default

when i had my TTI street kit the IC was mounted on top of the AC heat exchanger /radiator
I didnt notice any changes with the coolant temps (ofcoarse the gauge is stock and not that accurate) but i never had any overheating problems. the IAT where very high though, bout near 200°

with my custom kit the IC is up in the nose with the license area cut out away from the radiator., i have a good temp gauge, so coolant temps are good, and my IAT are much lower i think the hottest i have seen was 130° on a 100° day.
Reply
Old Jul 24, 2007 | 07:20 AM
  #16  
c5_from_jc's Avatar
Thread Starter
Teching In
 
Joined: Aug 2004
Posts: 22
Likes: 0
Default

Originally Posted by Exotic Performance Plus
We haven't noticed a big difference in engine temp's with our f body front mount intercooler kits. Bob
I probably wasn't clear enough in my original post. I though this was a general problem, but maybe it's just a problem with my Procharger and C6 Corvette?

For drag racing this is probably ok, but if i ever take this to a road course I can't see this working. I didn't realize these kits would not work on a road coarse (due to heat build up) when I purchased it. I know i could do Alky to keep the IATs down, but what could I do about the coolant temp? I don't think putting in a bigger radiator will help as a friend of mine tried it and he still had high coolant temps. I think this comes gown to getting air flow to the radiator and with Procharger's architecture, I don't see how to do it. If I could solve this it would be great.
Reply
Old Jul 24, 2007 | 08:41 AM
  #17  
rufretic's Avatar
10 Second Club
iTrader: (37)
 
Joined: Jan 2004
Posts: 1,935
Likes: 0
Default

The fmic isn't blocking anything. If anything it's letting more air flow through. How could a fully intact bumper flow more air than one with a huge hole in it? Yes it has to go through the intercooler first but before that, the bumber was letting no air through. It's the supercharger heating everything up, it's just a matter of keeping it as cool as possible with the added heat. Without the fmic, it would be even hotter. My car actually runs cooler now than it did n/a. It stays right around 180. Just make sure you keep the scoop under the radiator because I did notice my temps go up when I had that removed.
Reply
Old Jul 24, 2007 | 08:58 AM
  #18  
ls1290's Avatar
Dumb Ass Vette Moderator
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (20)
 
Joined: Jun 2002
Posts: 4,281
Likes: 2
From: Colorado
Default

With a fresh source of cold air and good fans, a FMIC is fine sitting in front of the radiator.

Keith
Reply
Old Jul 24, 2007 | 09:49 AM
  #19  
TS6's Avatar
TS6
10 Second Club
iTrader: (41)
 
Joined: Sep 2004
Posts: 2,989
Likes: 2
From: Champaign Il
Default

Originally Posted by c5_from_jc
I probably wasn't clear enough in my original post. I though this was a general problem, but maybe it's just a problem with my Procharger and C6 Corvette?

For drag racing this is probably ok, but if i ever take this to a road course I can't see this working. I didn't realize these kits would not work on a road coarse (due to heat build up) when I purchased it. I know i could do Alky to keep the IATs down, but what could I do about the coolant temp? I don't think putting in a bigger radiator will help as a friend of mine tried it and he still had high coolant temps. I think this comes gown to getting air flow to the radiator and with Procharger's architecture, I don't see how to do it. If I could solve this it would be great.

As mentioned, none of the airflow to your radiator comes from the front of the car in stock configuration. It comes up from underneath, via the airdam. Check it out. If you have altered that airdam/shroud at all, you may have cooling problems.
Reply
Old Jul 24, 2007 | 10:18 AM
  #20  
Fastbird93's Avatar
TECH Fanatic
iTrader: (10)
 
Joined: Feb 2004
Posts: 1,112
Likes: 2
From: Fort Wayne, IN
Default

Originally Posted by Jditlfm
I like that setup a lot, that would probably work very well on a lt1 trans am.
That's exactly what I was just thinking. How about some more info (mounting, efficiency, ect) on this setup.
Reply



All times are GMT -5. The time now is 06:47 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE