![]() |
|
1999 to 2003 7.3L Power Stroke Diesel 7.3L Power Stroke Diesel equipped Super Duty and Excursion. |
![]() |
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
![]()
I'm really impressed with the "smokeless" tune, that baby looks like it runs pretty good
__________________
2000 F-250 SCLB 2wd 7.3 auto PHP stock-65t-80dd-120race-high idle-no start 4"tb exh, wicked wheel, 3 guages, AIS, coolant filt, |
#2
|
||||
|
||||
![]()
The benefits of large nozzles.
Instead of injecting .16cc of fuel over 67 degrees of crank rotation at 2800 RPM (arbitrary number), it's possible to get the same amount of fuel in 50 degrees. This gives the fuel more time to burn completely before the exhaust valve opens. I guess in the grand scheme of things though, that statement isn't entirely true. I only get about 2 milliseconds of actual "spray time" with my truck at the moment because my high pressure oil pump can't supply enough oil for more injector on-time (read: not really injecting the full capacity of fuel). The truck WILL smoke like a freight train (as evidenced in the first "all-out" dyno run I did with it) but it's horribly inefficient.
__________________
Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim. |
#3
|
|||
|
|||
![]()
When did y'all go to the track? We are thinking about coming down to run on a Friday night, be nice to get a few people together and go
|
#4
|
||||
|
||||
![]() Quote:
There are diesel drags on July 9th.
__________________
Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim. |
#5
|
|||
|
|||
![]()
Thanks Cody, so the single shot w/stock nozzles is what I should be looking for
__________________
2000 F-250 SCLB 2wd 7.3 auto PHP stock-65t-80dd-120race-high idle-no start 4"tb exh, wicked wheel, 3 guages, AIS, coolant filt, |
#6
|
||||
|
||||
![]()
That's what I recommend for everyone in your shoes, CJ.
On paper, the Stage 2 injectors 160/80 or 100% nozzles just aren't worth the trouble. You're either shooting for good numbers on stock high pressure oil (like the 160/0% injectors in Bill's red truck; 395 HP and still able to maintain 3000 PSI) for $1100 or you're looking at making more than 400 HP with the possibility of not needing an aftermarket high pressure pump (strong case for hybrids). Stage 2's are just kind of....well.... outdated. They're pretty oil hungry and they don't have the fuel capacity for an easy 400+ HP.
__________________
Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim. |
#7
|
|||
|
|||
![]() Quote:
__________________
2000 F-250 SCLB 2wd 7.3 auto PHP stock-65t-80dd-120race-high idle-no start 4"tb exh, wicked wheel, 3 guages, AIS, coolant filt, |
#8
|
|||
|
|||
![]() Quote:
__________________
2000 F-250 SCLB 2wd 7.3 auto PHP stock-65t-80dd-120race-high idle-no start 4"tb exh, wicked wheel, 3 guages, AIS, coolant filt, |
#9
|
||||
|
||||
![]()
With a stock truck that's used for working/towing...stick with stock size nozzles. The ones I have on my truck currently are 100% over stock (hafta see how the truck tows 13-15K lbs. when I get home). I have a feeling it's going to suck.
__________________
Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim. |
#10
|
||||
|
||||
![]()
I betcha its gonna be good once the tuning is right....not saying it isnt already....but mine towed real nice once they were dialed in.
|
![]() |
|
|