Here We go! Two weekends and non stop from dawn to evening. I got it fired up late last night and today I drove it a bit before I had to get back on the road to travel 5 hours back to work.
The build so far is.
Orion - single shot tunes from PHP running 275hp setting
160/0 injectors from Full Force diesel
Kc300X stage 1
Homemade 4" Downpipe, 5" Donaldson muffler, 4" factory stack
Bellowed uppipes
910 valve springs
ARP head studs
Dual Super Duty pumps - Removed mechanical lift pump
DIY Regulated return with fuel bowl delete (Set at 65-67 PSI)
Hiflow Banjo bolts
CNC Fab Hpop Lines
Riffraff crossover
Some Ebay Plenums
So, This time around with the custom tunes the throttle response seemed to be even better, The truck was also running slightly cooler and cleaner. (Or at least the EGTs were climbing slower.)
The RPM limit seems to of been lowered from 3000 to 2800. But that may have been Bill slowing down the defuel map as before I made comment about the throttle just cutting out instantly when I hit 3000 running through gears.
The cleaner bit may also be from Bill turning down the pre boost fuel. - He may have also done this where I said I wanted to clean up some of the smoke.
The idle seems to be way smoother as well. But That could also be because I found two random reman AD's hiding under a valve cover so maybe one of them was acting up. (Even though with my other tool I passed injector tests multiple times.)
The truck does have a weird cackle now when around 1500ish RPM both through the high idle and computer, as far as the high idle is concerned this maybe the computer trying to catch itself from spinning faster.
It also has a lope almost when you cut out of throttle and let it return to idle almost as if the timing is very advanced (This is an ignorant guess my experience isn't with 7.3s) But I could also guess it maybe because of air still being in the HPOP lines. The truck also takes a minute to start but I'm also very very sure this is from air being in the Hpop lines still. (I really hope that's all it is)
I did also ring the trucks neck once on my dirt road, I got the rear tires to scoot sideway a little when the boost came on. So anything that can do that with a 17,500lb truck has me loving it.
Besides my EGT and boost gauge.
I still need to build my gauge cluster. But I'll wait for that next weekend I'm taking a break. I stand in the sun all week in 90* 80% weather no sitting down till I go to sleep. So driving 5 hours one way and spending weekends standing on a 2" tie rod isn't the most relaxing thing to do.
But I have HPOP, Fuel pressure, oil temp, exhaust pressure I need to install.
I also want to write emails at some point in time this week to tell each vender I bought from how overall happy I am with the truck. My first impression has been amazing so far.
