Am I there?
My heap amounts to an internally stock 6BTA5.9 with ~
(Air In - -> - - >Out)
IN ~ 100% outdoor air free-flowing into a fully enclosed BHAF - - > Four inch smooth walled turbo feed duct - - > PDR HX35 hybrid turbocharger - - > Three inch duct - - > Banks After-cooler - - > Three inch duct - - > Banks TwinRam intake.
OEM Stock Long-block.
OUT ~ Ported ATP exhaust manifold - - > 14cm W/G turbine housing - - > Four inch down pipe - - > Four inch full exhaust including a very large, very quiet high-flow muffler and resonator.
FUELING ~
* Cummins piston lift pump.
* IP mods include: 3200 gov spring, OEM grind fuel pin set to most aggressive position with washer removed. Fuel pin spring set for moderate low boost smoke. Fuel screw won't go in any more. Timed at 2.0mm @ 0*TDC.
* PDR 190 injectors.
* All linkage etc set to ensure full throttle travel.
MISC ~
* MBC set for 38psig max.
* Fluidampr
* Synthetic oil
* CoolerMist Varicool W/M (50/50%) start 15psig, full on 30psig. Two 18gph (@ 150psig) nozzles. (Still can't bog it).
* Valves set at 0.008" and 0.016" cold.
A WOT blast from 0 to 70mph presents with 1300*ish pre-turbo EGT's and just shy of 38psig boost.
Seems to accelerate OK. I figure 200hp to the ground considering the OEM TC (it's next).
I think the injectors are holding me back.
Would I be correct in thinking that if I want to go to the next level, I'd do well to consider larger injectors with a matching increase of air via a larger single turbo? I assume I'd also do well to strongly consider O-Ringing the head. Perhaps new valve springs (minimum) while I'm at it?
I can't justify twins to be honest.
I'm pretty much set in sticking with a VE pump so I guess that'll set the tone.
I'm planning on pulling the approx year old injectors and have the pop pressure tested/adjusted in the next week.
First time on the dyno this coming Feb 17th. We'll see.
Suggestions? Comments? Rude remarks?