yes i read about the 24# injectors so i will prolly get those if they fit into place?
is there a company that makes forged pistons? i just looked on summit and they have Hypereutectic aluminum pistons,is this what u are talking about?
and i talked to the turbo company about my size and i was surprised they said i should run a TO4E-60 / Stage 5 .63 A/R turbo ; rated for 200 -350 hp. the reason being is it has a light weight t3 turbine with the high flow t4 housing and ceramic bearings which in terns means fast spool up.thats what i need.kind of weird i figure stage 1 for an engine like mine but its the opposite stage 5 is for me.
now im having a brain fart so is this how i should run the intake side. air filter - maf sensor - iat sensor - turbo - intercooler - oil vent tube - throttle body.
or should the iat sensor be after the intercooler for true intake temp?
also will the turbo be ok under the truck where dirt and road water and crap like that can get on it? wondering because theres not a whole lot of room in the engine bay for all that crap.
why does a turbo not build boost in neutral, why only driving?
also will i need to use a MoTeC / Horiba wide-band oxygen sensor.
Forged pistons for the 3.0 are going to have to be custom made and $$$$$$. Those hyperuetectics are a little better than the stock cast ones but they're not really designed for forced induction.
I run a .48 A/R hot side and .60 A/R cold side T3 on a 2.3 and I don't really get boost until 2500 RPMs and thats with a tubular header and 3" madrel bent exhaust (both of which help boost come on faster). I'd say my turbo on a 3.0 would do what you're looking for. The one they recomended would be a good choice for making optimum power with a 3.0 which occur between 3000 and 6000 RPMs.
With your setup you can run the MAF in any position you want, before or after the turbo. You can also run any fuel injector you want, 3.0's came stock with 14s. 19's would be enough for as much boost as the cast pistons can handle but I would go with 24s for more boost than that. Just put everything together where you want it and then take the truck to a dyno shop to have it tuned.
Yes you can put the turbo under the truck but then you have to run a separate oiling system for it, which may be easier than adapting it to the trucks. I would highly recommend that you not subject the thing to mud and water. A turbo at 1200 F sure doesn't get along well with mud and water.
Turbo's don't build boost in neutral because there isn't enough energy in the exhaust to power the turbine when the engine isn't loaded up. Boost comes on as the engine loads up and the enthalpy of the exhaust gases increase. It's basically textbook engineering thermodynamics. Basically a combination of the standard internal combustion Otto cycle and a basic turbine-compressor cycle. You can control when boost comes on by varying the size of the turbo. But if you had a turbo that made boost at idle your engine would choke at 1500 RPMs.
A wide band O2 sensor would definately be helpful with tuning and would let you monitor rich/lean conditions while driving. This would be especially important with a 3.0 that like to ping even without a turbo. But it's not necessary for it to run.
My final thought is that a 3.0 is far from an optimal engine to boost. The fact that you'll most likely be stuck with cast pistons coupled with it's high compression ratio really limit how much boost you can run. By the time you get the thing really prepared for a turbo (forged pistons and rods, lower compression, smoothed out combustion chambers, inconel exhaust valves, etc) you could have a boosted 351 for what you spent getting the 3.0 there.
I'm not saying it's a bad idea, it's just that if it could be done while costing less than other ways to make power, someone would have done it by now.