I am looking for some options into intercooling my truck. I have a 90 Non intercooled D250. I am not wanting to change to the intercooled style grill. I plan to add a Snow water methanol injection system regardless. Should that be enough with a 4inch straight pipe exhaust to keep it cool or am I going to need something else like an air to air intercooler? I have looked at some of the stuff to add a air to water setup and honestly it seems like more of a hassle than it is worth. I also have the ability to make my own crossover tube and was thinking of making a full 3 inch crossover with bungs welded for the injection and my boost gauge. If I run a 4inch exhaust and a full 3inch crossover will that be enough for pulling to keep it cool? Trailers and such. I don't plan to do any sled pulling at all.
Jeff