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Old 03-09-2003, 03:09 PM   #1
subyruss
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Join Date: Oct 2002
Location: colorado springs
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04 vw gli
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Default front mount

I went to my mitsubishi dealership yesterday to see the new evo. I think that the interior actually looks better in person than it does in pics. But the guy who worked there kept talking about how great the front mounted intercooler is. I just kept telling him that the wrx is going to smoke this. But why didn't subaru make a front mounted intercooler?... Wouldn't it have given it a bit more power?... Also what is with the manuel water coolant to the intercooler. what does that do?... "for the evo"

-Russ-
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Old 03-09-2003, 03:42 PM   #2
jaypride
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The top mount IC can be just as good or better than a front mount. All depends on how efficient the two are. I don't know the numbers for the STI or the EVO so who knows which is actually better. The front mount just give the EVO the "street racer" look. The water spray to the IC gives it more effective surface area and therefore more cooling power.
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Old 03-09-2003, 04:30 PM   #3
subyruss
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i do like the front mount look over the overhead though.
thanks.

-Russ-
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Old 03-09-2003, 05:19 PM   #4
StealthWagon
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How does the water spray give it more effective surface area? That seems impossible, i think the water just evaporates dissapating heat from the intercooler during its phase change cooling the intake charge.

Would you mind explaining your reasoning?
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Old 03-09-2003, 05:32 PM   #5
jaypride
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A single bead of water on the surface of the intercooler has much more surface area on its outside than the area it takes up on the surface of the intercooler. This increases the effective surface area of the IC and provides more cooling. Agreed, during evaporation it does take some heat away too.
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Old 03-09-2003, 07:36 PM   #6
RA29
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FMIC is better than a TMIC if everything else is constant.
FMIC wont get "heat-soaked" from the engine unlike a TMIC.

Theoretically, the FMIC should also get more air cooling as there is nothing blocking it. That's why the new STI has a larger hood intake as the hood intake limits the amount of air coming in.

The WRC cars all have FMICs, including the Subaru.

Dont know why Subaru doesnt have a FMIC but maybe for the next version, they can consider it as they already have the technology.
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Old 03-09-2003, 08:35 PM   #7
spburns74
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I'd say the only draw back I see to the top mount intercooler would be when you are waiting in line (like at an autox) the heat from the motor rises up and warms the intercooler, but that is when the spray would be nice....


MaxGrip
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Old 03-09-2003, 09:13 PM   #8
tee_rexx
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I don't know which is more efficient or ultimately better, but I know one thing.....the front mounted intercooler on the Evo is clearly far more likely to be damaged upon impact. This could likely raise the insurance costs on the Evo compared to the Sti. I mean I've seen the Evo up close and there is very little protecting that intercooler, it's just hanging out there.
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Old 03-09-2003, 09:51 PM   #9
944 turbo guy
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Default Charge temperatures.....

I think we should give Subaru a little more credit than that. Andial makes a charge temp gauge that shows charge temp for ingoing and outgoing,.for the intercooler. The charge temp could on an average day be around 135 degrees in 20 mph stop and go, 180 in dead traffic, and 104 while moving,..all with an ambient temp of say 75 degrees. The second that intercooler sprayer( the more the better) hits the intercooler the charge temp drops dramatically. VERY quickly, and this results in alot of power right away. Dont think the front mount doesnt get any heat from the radiator or engine alone,..cause it does, but the top mount left in "auto" mode WILL do the job just a good.

DONT think so,....let your car idle for 10 minutes, pop the hood, and touch the intercooler,....OUCH !! Close the hood let it sit for another 10 minutes,..pop the hood take a spray bottle of water, spray the intercooler, then touch it,..you could sleep ontop of it,..
this will make you a believer and not worry about a front mount until you install that vf 40 and Jun cams and extend the redline to 10 grand !!!

944 turbo guy
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Old 03-11-2003, 03:25 PM   #10
Jaxx
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more pipe=more lag
a front mount on a subaru uses lots pipe .. due to where the turbo is
on the evo its alot closer thus less pipe
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