I compiled this a long time ago when I was hunting for a suitable FMIC. I'm not sure if any of this has been recently posted but I hope it helps somebody. Why pay for a big name intercooler if one that's in good shape from a junkyard will do just as well?





NPR IC: at 329cfm and 290°F on the inlet side of the IC, the pressure drop is 0.09psi. The outlet temp is 130°F, heat rejected is 55553 BTU/hr, and the calculated heat exchange area is 1404 square inches.

Starion IC : (the bigger one) at 324cfm and 292°F on the inlet side of the IC, the pressure drop is 0.29psi. The outlet temp is 139°F, heat rejected is 52287 BTU/hr, and the calculated heat exchange area is 1217 square inches.

Saab 9000 IC: at 332cfm and 295°F on the inlet side of the IC, the pressure drop is 0.81psi. The outlet temp is 123°F, heat rejected is 60350 BTU/hr, and the calculated heat exchange area is 1602 square inches.

Volvo IC: at 331cfm and 293°F on the inlet side of the IC, the pressure drop is 0.55psi. The outlet temp is 126°F, heat rejected is 58809 BTU/hr, and the calculated heat exchange area is 1539 square inches.

 

Thanks for the info.

 

how does a stock intercooler do?

 

I use 2 starion intercooler cores welded together in parallel one on top of the other with custom endtanks. Double the flow and area. I wonder how this would rate? It cost less tan $150 to build though so I guess I can't complain.

 

Nope, sure can't. Beats spending a lot of money for a fancy name.

No, I don't have the specs on the stock interheater. I wasn't into seeing how much better the other intercoolers were. I knew they'd be better. It's just that I wanted to know which one to hunt down. I wound up going with the NPR "small" i/c. It's going on in a week or two (finally).

 

at whgat psi was that test done? and if low how would theyt perform if the psi was raised?

 

Ummm, the psi is not a useful measuring tool in these tests. An intercooler will take all the pressure you can give it. The weak link in the setup will not be the intercooler. Most likely it'll be something softer. A stock turbo in a kouki FC boosting 8 psi will be different than a stock turbo in a new VW GTI 1.8t boosting 8 psi. That's why the tests I found used CFM and temperature.

 

wow.... great info... also.. I assume this is all rated in the stock location on the stock car?

 

Beats me. I just found this info on the internet. No more details available other than what I posted. They must have been tested together in the same car because the inlet temps are so close to each other.