Camaro_Zach

iTrader: (19)

I realize you probably can have too much intercooler, however if you had two intercoolers, each rated to about 600 hp, and only planned on running 600 hp would this be an issue.

let me state that "effeciency isnt an issue here really". just want to properly cool the air and get it into the motor. I realize these would probably be better suited for making 800+ but im sure they will do their job at 600.

so someone let me know if my thinking is correct or not.

thanks

smokinHawk

iTrader: (48)

only thing to be concerned with would be pressure drop.

Camaro_Zach

iTrader: (19)

Im a little ignorant to pressure drop. does that basically mean if im puttin in (for example) 10 lbs of boost from the turbo into the intercooler, when it comes out of the intercooler it might only be at 8 or 7 lbs because of the drop? is that how it works?

bowtieman81

iTrader: (35)

Yep, that is basically what happens. The larger/more intercoolers you have usually the higher the pressure drop. It's a combination of a couple factors.

KraZy

iTrader: (4)

I'm seeing about a 2psi pressure drop through my pipes and intercooler (ebay OBX type). I have a 10psi wastegate spring, but I am only seeing 7.5-8lbs of boost at the engine.

Tiago

iTrader: (27)

I woudln't trust a WG spring rating. That can vary by 1-2 psi.

never have too much IC!!!



with a turbo you can always reference it off manifold pressure and achieve the same boost!

engineermike

Actually, the larger intercooler you have, the lower the pressure drop. Bigger intercooler = more flow area. I installed an intercooler 2.5x bigger than my old one and my pressure drop went from 4 psi down to 1.5 psi.

There is no disadvantage to running a huge intercooler.

Mike

mahhddgtp

What are the factors to pressure drop? If anything, I thought pressure drop was a good thing when it came to intercoolers and boost... Cool the air -> less pressure...

Pro Stock John

iTrader: (34)

I think given the space constraints you have, that you will end up running less intercooler than you would like. What are the dimensions of the ones you are going to use?

Camaro_Zach

iTrader: (19)

thats what youd think haha, i found a place to tuck 2 12x12.5 inch intercoolers, and get great air flow.

onfire

iTrader: (17)

How thick?

Actaully, that's one core 12 x 25 .....not big at all....good size for a c5 though.

Camaro_Zach

iTrader: (19)

3.5 inch thick. i want to do twin, i hate the heating issues that come with a single fmic on a vette.

engineermike

That's not how it works. Pressure drop through the intercooler is a measure of its restriction ONLY, NOT it's cooling ability.

When you add alot of intercooling capacity, the boost pressure does drop some due to the contraction of the air. HOWEVER, the pressure also reduces upstream of the intercooler. This reduction of pressure in the discharge of the compressor results in an increase in flow. If you have too restrictive of an intercooler, you will not get this increase in flow, but you do get cooler air meaning less chance of detonation.

If your turbocharger wastegate is referenced to the intake plenum, then you will not see a change in boost pressure because the turbo will just speed up a little to get back to the desired boost setting.

Mike

DeltaT

iTrader: (5)

Is the spot you found good for airflow to AND from the ICs? Cooling airflow I mean.

Jim

Camaro_Zach

iTrader: (19)

yes sir, if the guy who i bought the IC's from doesnt suck i can get pics as soon as they are mounted, might take some time though.