well as a day dreaming .
I was thinking about a true twin idea...not compounds.
For example the OEM setup puts down say 250 hp on one turbo.
a gt38r, h2e etc..and some b code injectors or mini-mes, some fuel line mods can hit hit 500 hp or more. so that is 250 ish a bank.
so i am thinking if you get enough air and fuel off each bank you could do it.
I would use the early 99 turbos cause they are relatively cheap. They don't surge and are smaller so should fit easier.
They also have built in waste gate to keep the turbo from over boosts.
It would start by coming off a single header , short section of pipe, with a flat stock flange adapter welded so you can mount a single turbo.
maybe a 3" DP
. Seems like it would be cheaper, and easier to fit and work with smaller piping. Possibly tie the DP
back together with an h pipe under the truck then maybe go stacks, or cobra style sides .
I think if you got a battery tray off an Isuzu NPR or got those gel batteries you could move them to the frame giving enough room for some sort of simple diy
intakes for each turbo. for the initial test i would skip the ic
. biut uses smaller pipesto the intakes, (early 99) or custom, but no larger then 3" to keep the pressure up.
But eventually, I am thinking either stack two smaller subie front mount ic's so each turbo gets one. Not sure if you would (or could) have the left bank turbo actually supply the air for the right bank... so the ic
pipes wouldn't have to wrap back around.
and if that doesn't spool snatch a vortec or Paxton centrifuge super charger off a 5.0 stang, mount that where the second alternator would go and plumb that in for a boost kick. Or as a last resort you could get some sorta small car / bike turbo and go mini quad but basically two sets of small compounds...
preference to the supercharger as it would have no turbo lag, and boost off the line flat footed, ......almost.
seems low budget to me cept injectors , fuel mods, etc.
.......is this do-able or just a passing brain fart of the day notion.