gauges are finally hooked up!
EGT's are very controllable. At a sustained 40psi boost egt's just hit 1200 deg, boost max's just over 60 psi, egt gauge JUST max's at the end of a pull (1500 deg gauge). Fuel pressure is 60psi idle, 35 psi WOT. Keep in mind that's a stock piston pump, fed by a fass pushing 15 psi through 1/2 ID lines, from a sump.
as far as spool, the turbo just starts to make 10 psi by 2000rpm, after that its "lit" and has little to no lag or hesitation from 10-60 psi
I would love to find a way to get the turbo to spool faster, I have thought about a spool flange, but I just do not need anymore work right now. a spool flange would require even more down pipe, oil drain, and shock tower modification. either way, the truck scoots, watching the gauges and the road is a task in itself.
This saturday, I plan to dyno the truck (weather permitting) I'm shooting for 600hp/1xxxtq. I talked to Will, aka Bigblue24v and he is sending me another set of DV's to try(thanks Will!). I will do a back to back test with the 028's in the truck now, and the new dv's (7mm comp style cut)
whats done to the truck as it sits now...
5x16's
028dv's
timing at 20deg
rack plug
afc tuned, full open at 40psi
no plate
barrels "racked"
Valve springs, retainers and locks from Weston, rocker support
Hamilton pushrods, 24V tappets, 188/220 cam
fuel sump, external filters, 1/2 lines, VP44 Fass pump feeding a stock piston lift pump.
steed competition T4 maifold
FMW 68/83/.9
arp2000's at 140ft/lbs
NV4500
Kenney's DD
I think the 160 pump, and or the fuel supply is the only think that will keep me from 600hp.
the old girl has come a long way, maybe 160 horse bone stock when I started this thread, and well into my original goal of 500-550 now. once I get the 600, its going to be time to focus on other projects...
...or create another project by returning the truck to stock, and throwing the drivetrain in a 2wd shortbed