Saab 900 IC vs. Saab 9000 IC

[D-Cal]

Probably the cheapest but most beneficial way to go is to plumb two larger ICs in parallel. Makes for a busy engine bay, but very doable.

[glhman]

I dont have two large ones, just a small one (900 with aluminum end tanks) and a large one (9000 with plastic end tanks).

F* it, I running the 900, and if that doesn't cool enough, add a alky injection

[casey peak]

Quote:

Originally Posted by D-Cal 900 will flow terrible. Note the flow path through the IC - it enters one side, flows through half the core, does a 180 in the end tank and then flows through the other half. Some 900s will have plastic tanks, older ones aluminum. Derek

True, a friend of mine just picked up an 85 900. I pretty sure it's an 85. It has the double pass, plastic endtank IC that doesn't look like it would be a good one to use alone.

[aerosmith145]

I'll warn you guys, the aluminum-tanked Saab 900 Blackstone intercoolers have no divider between the inlet and outlet. Some of the plastic-tanked ones do, though. As you all know, pressurized air will take the path of least resistance. It is possible that no air flows through the core at all. It could very well just flow in on one side, and out the other. Who knows - I mean, SAAB was intelligent enough to integrate a D-valve into the intercooler, so maybe there used to be a plastic divider.. I dunno. You'll see what I mean in these pictures.. I'm using a keychain sting to demonstrate.