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fmic install now over heating

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power=dsm

15+ Year Contributor
268
2
Aug 22, 2003
K today i got my fmic installed and removed the bumper. I replaced both fans with one 14" fan. At idle the car won't over heat, put as soon as i take it on the road, the temp starts to rise up. It went all the way up to the "p" on the heat gauge, and only started to go down with the heat on at full blast.

So i checked coolant and that’s fine.
I put back on the heat shields, which helped a bit

But it still over heats, didn’t do this before I put on the fmic. Also my pipes on the intercooler are very hot(upper piping), and i was under the impression that they should be cold?
 
What brand of FMIC is it? It's overheating cuz it's blocking air to the radiator. You may have to cut a little more of the bumper to let some air around it. Make sure your new fan is working too.
 
exactly, the fmic is blocking air tothe radiator. actually, putting a second fan back on my not hurt. also, this exact problem is why some ppl try the v-mount set up. you have to custom weld the fmic, above the radiator, sort of above the headers. do this on a fwd or awd car, and u need a heat shield on your car; do it on a rwd car, and u can jus put it on. it is more efficient this way, allowing for intake cooling, as well as coolant system cooling. jus my $0.02

shane :dsm:
 
blueberry_dsm said:
exactly, the fmic is blocking air tothe radiator. actually, putting a second fan back on my not hurt. also, this exact problem is why some ppl try the v-mount set up. you have to custom weld the fmic, above the radiator, sort of above the headers. do this on a fwd or awd car, and u need a heat shield on your car; do it on a rwd car, and u can jus put it on. it is more efficient this way, allowing for intake cooling, as well as coolant system cooling. jus my $0.02

shane :dsm:


not too sure what you're talking about, do you have any pics of this?
 
power=dsm said:
I replaced both fans with one 14" fan.
Make sure you have the fan hooked up correctly blowing in the right direction (towards the engine) since most after market fans are push&pull type. Installing a 9" fan on the old ac fan location and hook up both fans to the same circuit so both will come on at the same time should help as well. Good luck.
 
blueberry_dsm said:
exactly, the fmic is blocking air tothe radiator. actually, putting a second fan back on my not hurt. also, this exact problem is why some ppl try the v-mount set up. you have to custom weld the fmic, above the radiator, sort of above the headers. do this on a fwd or awd car, and u need a heat shield on your car; do it on a rwd car, and u can jus put it on. it is more efficient this way, allowing for intake cooling, as well as coolant system cooling. jus my $0.02

shane :dsm:

Yes this would work, but why reconstruct the entire front portion of your car when you can just add a second smaller fan for 80.00 and call it a day?
 
I'm running a 12" and a 9" with more room to spare on both sides so you should be good with another 9" fan. I'll measure it tomorrow to make sure there are 2 inches to spare.
 
CyberEye said:
I wouldn't either way, i'm just curious as to what he's talking about.

he is talking about what you could call a sideways V ive seen this done in a few rx7s but never a dsm. what it is exactly is the intercooler or the top half of the V mounted with the top pointing to the bumper and the bottom angled in towards the engine and the radiator mounted as the bottom half of the V with the bottom of the radiator towards the bottom of the bumper and the top angled towards the engine like a sideways V pointing at the engine


intercooler
>engine
radiator
<----front of car


maybe that will help.

as for your problem id kick another smaller fan on there for that added pull of air. and do what old man said and check the direction the fan is blowing. pulling hot air from the engine bay wont help cooling.


Don :talon:
 
Do you have A/C?

For a short time, I ran two fans (12" and 8") on my car with A/C, 3" thick FMIC, and a Fluidyne. The car would still run really hot on high temp days. I actually had to pull over on a long drive once as the car reached 230 degrees. It was a little scary, and frustrating.

I tried everything I could think of - different coolant/water ratios, checked all parts to make sure it was all functioning correctly. In the end, I just pulled the A/C. If I go anywhere that A/C is needed, I just take my wife's car.
 
I just installed my frontmount and my car was running a little hotter than before too. I expected this since I'm blocking the only entry of air to the radiator. Then I cut more off of the bumper support and put the plastic ducting back on top (with a little modifying) and finally I installed a deflector under the car that scoops air and bypasses the intercooler and goes directly to the radiator. I don't know which one of them helped the most but my car is somewhat back to normal operating temperatures. :thumb:
 
Ludachris said:
Do you have A/C?

For a short time, I ran two fans (12" and 8") on my car with A/C, 3" thick FMIC, and a Fluidyne. The car would still run really hot on high temp days. I actually had to pull over on a long drive once as the car reached 230 degrees. It was a little scary, and frustrating.

I tried everything I could think of - different coolant/water ratios, checked all parts to make sure it was all functioning correctly. In the end, I just pulled the A/C. If I go anywhere that A/C is needed, I just take my wife's car.

I don't mean to hijack but... aproximately where would 230 be on the stock water temp gauge?

my car runs hot sometimes (a little bit passed the center, but not much... doesn't clear the little picture in the center, whatever it's meant to be) but it's still hotter then then where it sits most of the time.

i noticed that it goes up usually when i've been boosting a good amount or the a/c has been on for a while. at first i thought it was because i didn't have the 2nd fan hooked up, but then i noticed it doing the same thing but the a/c was off.

like i said, the temp doesn't go up much, just barely past the center. i just want to know aproximately what temperature that would be.
 
Ludachris said:
Do you have A/C?

For a short time, I ran two fans (12" and 8") on my car with A/C, 3" thick FMIC, and a Fluidyne. The car would still run really hot on high temp days. I actually had to pull over on a long drive once as the car reached 230 degrees. It was a little scary, and frustrating.

I tried everything I could think of - different coolant/water ratios, checked all parts to make sure it was all functioning correctly. In the end, I just pulled the A/C. If I go anywhere that A/C is needed, I just take my wife's car.

I have the exact same problem when I run A/C. The car runs at 210F consisently but with A/C turned on on a hot day it went past 230F easily before I turned it off and ran hot air through the vents to bring the temp back down. I just don't run the A/C for long periods of time until I figure out whats going on. It has to be similar to the thread starters issue, restricted flow. I'm thinking about building some custom piping to go from the fog light locations and pour the cold air onto the rad.
 
i just checked my fan, and it's it's pulling air from the motor shooting it through the rad.

is that the direction it suppose to go i thought it was suppose to take aire from the outside and suck it through the rad
 
power=dsm said:
i just checked my fan, and it's it's pulling air from the motor shooting it through the rad.

is that the direction it suppose to go i thought it was suppose to take aire from the outside and suck it through the rad

Yes, it needs to suck it through the radiator and back towards the motor.
 
boostedinaz said:
He said that his is sucking air from the motor and pushing it through the radiator. That is wrong.

It needs to suck air from the radiator and push it towards the motor.

Well that sounds like this could be his problem. He's basically pouring more hot air into the rad then their already is, causing it to overheat as soon as the fans kick in to cool, or something along that line. WTF
 
k so if put the wires opposite to the way they are on now, the fans will go the other way?

does anyone know where i can find a 9" slim fan of good quality?
 
power=dsm said:
k so if put the wires opposite to the way they are on now, the fans will go the other way?

does anyone know where i can find a 9" slim fan of good quality?

Not sure about your particular fan, but it could either be changing the wires around or turning the fan the other way. It depends on the design aswell. A simple small 80mm computer case fan will only suck or blow in a certain direction and the arrows are marked for the proper direction, although changing the wires around will change the direction the fins spin but still wont work properly.
 
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