Simple mods to a Ranger...

[basjoos]

Originally Posted by dustyz

Thanks basjoos... I'll check out the grill tape. Since my truck is a Ranger, and the largest engine available is the 4.0L I have, the grill is likely designed for it, right?

The grill is designed for that engine under worst case heating loads. If all you are doing is cruising down the highway with a minimal load on board and with air temps well below Death Valley summer standards, you can still get away with blocking off a lot of that radiator air flow. Just keep an eye on your coolant temps at times when you have to run your engine harder to get an idea exactly how much cooling air flow your engine actually needs. Excess radiator air cooling flow equals excess drag, which is why aircraft designers have long used use cowl flaps and radiator doors to tailor their cooling air flows to their actual cooling needs.