"...listening to owner Collin Willshire explain how he was maxing out the efficiency of a single turbo, though it had been making as much power as it is now. Boosting the engine first through one turbo and then from there through another didn’t give them outwardly any more boost, just got it at a lower temperature.

And it’s a joy to listen to them debate the merits of billet engine block, but one that is made to mirror the exact dimensions of the legendary 4G63 engine that came out of the factory from Mitsubishi. It’s virtually entirely custom, but Willshire talks about a satisfaction that he could swap these parts into his truck if he wanted to. The semantics of everything is so granular.

In any case, this makes for an interesting watch, if only to see the gears turning inside the brain of one of the world’s top drag teams in this discipline."





https://jalopnik.com/this-110-psi-co...fas-1832155234

 

Nice post thanks for sharing. Very cool insights to making that big power on the 4g63.

 

this vid gets more into compound turbo nerd tech... but its on a billet SR20