diyman25

MY friend had 93 R1. with knight sport hi flow twin turbo on it, and he some time took this car to solo2 or track day.. I just wonder did any one try to small fan at rear of intercooler to cool down the intercooler. I got this idea from OFF ROAD race car. I saw most of their oil cooler had fun at back to cool down the cooler. and we plan to put Power FC very soon. so we can see the will inake temp change if fan is on?
tank in advance

Snook

iTrader: (12)

an intercooler sprayer with water will work much better but it may change the intake temps too fast for the stock intake sensor to respond and thats dangerous

the fan may work but you are esentially pushing hot air from your engine bay onto the intercooler so im not sure how cold it could get it and plus it would have to be a really small fan to fit between the upper and lower intercooler hose

gnight
Snook

T88NosRx7

iTrader: (1)

hmmm...interesting, If you were to put the fan on the back side of the intercooler you could force air through it, and that would also aid in the cooling of the radiator, wonder if that would work.

diyman25

sorry about my poor spelling . I think this idea will work. because stock intercooler is in very bad location.

Mahjik

iTrader: (1)

You aren't going to get any increase in performance using a fan on the back of the stock IC. It will help reduce the amount of heatsoak that can and does happen when the car is not receiving fresh air from moving.

The problem is the location of the IC. I don't know if you'll find a fan that will fix in that location and still be strong enough to draw any heat out of the IC. It's not a new concept, many people do it with the larger SMIC's as they have much more room for a better fan:

http://maxcooper.com/rx7/how-to/ic_fan/index.html

ReodDai

This reminds me.. we moved my friends MSD Ignition Box in his vette from off a plate on his intake manifold (don't ask dumbass shop said it was the only place they could put it), to one of the bins in the back. We were afraid of it getting too hot and burning the plastic lining in the bin so I installed two Thermal Take HeatSinks/Fans around it. Its fun because the fans gain speed as he pushes the throttle and they keep the entire area below 70. Just a thought. 4 Small and thin computer fans may be better than one large autofan.

DamonB

How so? The intercooler has it's own duct. A fan on the back of the intercooler would never pull more air through the radiator.

Jonesboro

I really think you are wasting your time and effort trying to improve the stock IC. The stock IC has two major problems, it is inefficient at cooling (too small) and does not flow well (exerts back pressure on the turbos). I can't imagine any mods to the stock IC that would yield a significant improvement. Besides, as pointed out earlier, there is limited space to add a fan on the back of the stock IC.

Just start saving your bucks for a larger IC.

racer1

Tried the fan mod behing the IC . Waste of time. The intake temps were about the same. Just go with a larger IC

luizajeff

I agree with "jonesboro". The stock IC is crap and any mods to it other than completely replacing it is a waste of time and money. PFS stock location IC looks to be the only worth while upgrade for a stock location IC, perhaps the best (no extra cost of moving the battery and radiator). I think a vented hood would also be a worth while upgrade to improve air flow and heat disapation for the eng., IC, and radiator. web:http://www.pfsupercars.com/

airborne

an IC fan is a great idea. if pulling air through a cooling device was a bad idea you wouldn't have fans on your rad either. same theory. but with the stock setup the IC and Intake airflow are related, don't know how the fan would effect that.

if you just want something to do thats cheap and will help a little bit while you're stuck in traffic go for it. but the stock IC has to go. if i could go back and do it all again i would replace that before i got a new catback exhaust. try to save up liek $4k (its a lot but likely you'll spend it in the long run anyway) and get a computer, intake and fmic or a huge stock mount like the M2 all at once.

Radical Rotary Avantgard

Not too long ago we beat this subject to death, so try a search on SMIC fans. That said, let me give you the general consensus on that topic and that is, that it will only help cool down faster after heat soak.

I have the large M2 SMIC with 2 Permacool fans and if you have them on, on a stop and go situation(traffic) they will heat up more the IC, due to recirculating of hot air coming off the radiator.
Once you stop and your IC heat soaks, then it will help cooling the SMIC faster once you get going again at speed.
If you are driving at +30 MPH, they won't help.
Solution: save the fans money, buy an aftermarket SMIC, get a PFC and lower fan temp activation, get an intake, down pipe and last get a bigger radiator if you are going racing. The hood also helps quite a bit.
Hope this helps you stay .

airborne

i don't know about that. if your IC duct is decently sealed to the IC and the duct on the outside extends a bit you shouldn't have to worry about hot rad air. i know if i'm stopped and my ic fan is running i can stick my hand in the duct and feel outside air going in whether the rad fans are on or off. also after driving around with the fan on the portion of the IC core covered by the fan is just barely warm while the outsides not covered by the fan can be almost too hot to touch.

Radical Rotary Avantgard

OH NOOOOOO! HERE WE GO AGAIN.

Airborne you were on that post from a while ago, don't you remember??

note to self: resist the urge to get into this again
Listen to self.