legacycentral bbs

This might be a stupid question but I have to ask anyway:

What does an intercooler (say one of those saab ones) do for your otherwise stock ej22?

for instance: increase fuel useage? drop boost level slightly? Just look pretty till you install a boost controller?

I'm a curious fellow here

It will slow down the rate of flow into the throttle body, with no change in the charge temperature.

Normally aspirated engines don't need them.

Your first sentence is correct

Subtle wrote:Your first sentence is correct

Easy. I was thinking about this question as well, but didn't bother to ask because I assumed that IC's were useless for NA cars. But, you gave him an answer and made it as something searchable in board records, so there's no need to be rude about it.

I see that I forgot the "t" at the end of "ej22" in my post. my apologies. I guess I thought people would pick up the turbo part from my signature and my reference to boost and boost controllers.

My car IS turbocharged care of FHI. other than what subaru did to the engine at the factory nothing else has been done for performance. Anyone want to try a different answer to my original question?

It will lower your intake temperature at the throttle body a little bit. But it will also be prone to heatsoak. The first main mods are generally air filter and exhaust. Then people install an intercooler and boost controller.

On a stock legacy turbo it will give you a little more power. The boost shouldn't lessen if you have the boost control solenoid hooked to the intake manifold since it reads pressure after the intercooler and not before.

It was too early on a Sunday morning for comprehensive reading on my part, besides that I think you wrote it too fast.

Subtle wrote:It was too early on a Sunday morning for comprehensive reading on my part, besides that I think you wrote it too fast.

hahah I understand man. no worries

dzx wrote: On a stock legacy turbo it will give you a little more power. The boost shouldn't lessen if you have the boost control solenoid hooked to the intake manifold since it reads pressure after the intercooler and not before.

stockb oost control solenoid??? Or aftermarket? Why not just get a boost guage and hook it up to that Manifold, and leave the boost controller hooked up to the compressor outlet, and adjust accordingly.

dzx wrote:It will lower your intake temperature at the throttle body a little bit. But it will also be prone to heatsoak. The first main mods are generally air filter and exhaust. Then people install an intercooler and boost controller.

Probably those mods because they are easy and marketable! Intake? BAH. Exhaust? Bah. Gut the cats? Now you're talking.

Add the intercooler and crank the boost. The intecooler allows you to run more boost without knock aka blow up your motor with detonation. More boost is not a subtle thing like minor flow mods.