Single or Twin turbo setup for 360?

go-fish said
When I was spec'ing out my 408" Procharger build I got guidance from some old schoolers. Wide LSA (114), 8.5 compression, ..... It ran beautifully but was pretty tame "feeling" for making 650 hp and 600 ftlb.
In the next 6 months I plan on pulling it from the 'cuda and going through it (sitting for years). It is a hydraulic roller LA engine with bushed lifter bores. I am going to look into a little more duration (230 @.050"?) and around 110 LSA. Maybe even mill the heads for a little more compression.

I have a new Snow water/meth injection system to put on this time too. Intercooler would be the preferred cooling but package constraints force the decision. I was thinking about putting that engine in my 76 D100 and couldn't find an overly roomy area , even on the truck, for an intercooler big enough. You can always do surgery on the trucks radiator core support and possibly space your whole radiator back about 1/2" (run electric fans?).

On my 76 there is a brace that connects the top and bottom of the core support right in the middle. Move that and space the radiator back and it would be enough room for the IC. I am unfamiliar with what the next generation's core and grille area look like.

Might want to run your plans through some "new-schoolers" lol. The low compression and wide LSA thing isn't really needed nowadays with what the hot-rodding community has collectively learned over the past 20 years or so. I'm guessing those old-schoolers cut their teeth on Roots blowers; centrifugal superchargers (Procharger, Vortec, TorqStorm etc) are much more efficient at not heating the charge air and have completely different boost curves. They don't hammer the engine with full boost right off idle like a Roots blower and don't require fuel flow through the supercharger just to keep it from melting down.

Gale Banks did an interesting test of putting a Roots blower on a Duramax diesel; since there was no fuel flowing through it like is typically the case in a carb'd gas engine application the blower basically ate itself alive from all the heat buildup.