DIESEL WORLD MAGAZINE BY ADAM BLATTENBERG
For some reason I’ve been getting asked a bunch lately why I still have a 38R turbo on my 7.3L when they know I have everything the engine needs for much more power than that little turbo would ever be able to support. And with a 700 RWHP goal in mind they know the 38R’s 500 rear wheel horsepower limit is really holding me back. It simply won’t flow enough air to make much more than 500 horsepower. Now I’ll tell you I never intended on keeping the little guy on there and always planned on going to a larger S300 framed turbo at some point. Well until the bottom end gets built I’m on the fence. I still drive my truck just about every day and the 38R is great for that. Rarely do I need more than 500 HP for my 12 mile commute. But when I drag race with the truck, 500 isn’t nearly enough. But my current setup works pretty well, and it might for you too.