Thoughts - I have been running one of the cheapies for three years - and it flat out works
No, i dont make over the rated 80 psi boost rating on it, but then neither do 97% of most pullers on here. So does one pay $800 for a name brand, or $80 for an Australian or China piece. I bet they both get thier cores from the same manufacturer, which is still probably chinese
efficiency rating wether pressure drop, or cooling limits are subjective at best - because it depends on who was testing it and at what air and water pressures, boost pressures etc etc etc
Considering an air to air doesnt do much of anything at 10-28 mph on the track, except heat soak, I would think any air temp reduction would be beneficial
I know my water/air will pull temps down to almost ambient with the current setup with two heat exchangers, one that is fan cooled, one that is ice cooled
i would suggest that you buy what you can afford, because some air temp reduction is better than none
I think with the water pump, the w/a, the AN lines and fittings and two exchangers i might have $250 tied up in the whole setup
Ryan - yes the larger w/a will do a better job if you have the room for it. The only thing will change is the boost pressure drop from the 2 psi or so for the 4x6x12 core to about 5-6 psi on the 4x10 x12 cores that are regularly advertised