Kenku

Hey, just throwing this out for all the turboFB guys. From looking at pictures it looks like everyone's using an FMIC right in front of the radiator... just wondering if there's any cooling problems caused by that, or if the FB has enough airflow coming in for it not to be an issue.

No, I don't have a turbo FB project going on. Yet. Just curious.

eddierotary

iTrader: (7)

if you block all the air coming to the radiator with a big intercooler, yes you will have cooling problem. that why im using a small NPR intercooler because of that. to leave a gap big enought so i dont have that trouble.

pillage6

I'm a dumbass, what does NPR mean?

Directfreak

iTrader: (2)

It's just the name of the Box truck. Isuzu NPR truck. Kinda like saying a "Toyota Supra intercooler"

rxdoom

The intercooler that I have had constructed consists of two series IV intercoolers welded together, to make one unit. This is mounted way out the front nose on a angle, well away from the radiator. The reason that I did this was mainly because of the heat sink effect that would come from mounting it hard up against the radiator.

However in retrospect I'm not sure that this was such a good idea. The reason for this is that the only problems that could come from heat sink are when the car is stationary, but these would have been only a minor issue. Secondly, the way that the air is channelled through the front of the car is almost ideal from mounting the IC infront of the radiator. The air channel is almost completely sealed and when the car is moving really forces all the air it scoops up through the radiators. With the IC out the front on an angle i think that it could possible deflect some of the air away from the air channel, and also because of the gaps around the IC end tanks the air will always take the easiest possible route and flow more efficiently around the core. As opposed to through the core which is the most desired effect.

Honestly, while you may experience a slight increase in radiator temp when the car is stationary, on the move there will be minimal problems. In race conditions, then I would be up grading the radiator to a thicker core. But otherwise mounting in front of the radiator in my opinion is ideal.

rxdoom

Hey Eddie,

What is the year model of the NPR that you have used? or are they all the same? I've seen you IC installation and am interested in doing the same thing.

Eville140

I know it is not a rotory, but I have had a BIG NPR in the front of my mustang completely blocking all the air from the radiator except what was going threw the IC and I never had any cooling problems. And a mustang gets a lot less frontal air flow than a 1st gen gets.
I say stick the biggest IC you can in there, and if it overheats get a better radiator.

Later
Randy

Directfreak

iTrader: (2)

Kenku

Ahhh, okay. Just curious, as I've seen a lot of comments from the 3rd gen guys about FMICs, and didn't know if this was an issue for us... cool.

Bwah ha ha ha. I need to scrape together money for a T2 drivetrain.

pillage6

Anyone have an intercooler that runs top to bottom?

I am thinking about that since my carb is a downdraft, not sidedraft.

MIKE-P-28

iTrader: (1)

Are you absoltely sure about this statement? Wanna edit it?

In the late summer here, it still got to 80-90 degrees int he summer. My car NEVER runs any hotter than 192 degrees

I have a large Isuzu NPR IC, a 16 inch electric fan, and a fan cooled oil cooler. Never any problems.

eddierotary

iTrader: (7)

probably i didnt hear it from you but i hear from other people that use large npr and volvos intercooler that have overheating problem. and you have a fan in you oil cooler too that takes more heat out of the engine. im probably im wrong but this what i heard.

12at

I have a large front mount right infront of my radiator and I dont have a temperature problem. Im using an RX4 radiator and oil cooler and 16 inch thermo fan.
It creeps up a little whilst stationary but as soon as you get moving again it comes straight back down.

eddierotary

iTrader: (7)

like i said before i could be wrong but this is what i head from other people when i ask the same question.

rotarygod

iTrader: (1)

Of course the 3rd gen guys are concerned with cooling. Those cars oveheat easily completey stock. Lousy design. The have the most power, smallest radiator, and least amount of space under the hood for air to escape. If they could cool like a 1st gen you'd never see any issues with this subject.