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1999 to 2003 7.3L Power Stroke Diesel 7.3L Power Stroke Diesel equipped Super Duty and Excursion. |
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#1
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There is a way to adjust the gate buy tightening the rod down a bit.
I don't know if I would as the tuning should take care of that. |
#2
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I just leave it unplugged. When Im boosting it swwms to bleed off at 20
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#3
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Actually Dave, the wastegate will still open regardless of the tuning.....but only because drive pressure overcomes spring pressure in the actuator. I tuned the heck out of my friend's 99.5 6-speed but couldn't get decent boost at low RPM (what I knew it was capable of). I never had an issue with automatics, but since manuals lose boost at every shift, I knew something was fishy. So I adjusted the wastegate rod until it was physically impossible for the wastegate to ever open and now the driveability of his 6-speed is GREAT. Of course I had to take some fuel out down low afterwards but it's a totally different truck now. I wouldn't recommend doing it to another truck, but I'm just throwing it out there because I know that the springs in the actuators are pretty weak and that they will be overcome by drive pressure at relatively low boost regardless of whether or not the wastegate solenoid is commanded to send boost to the actuator or not.
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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. |
#4
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Great!
Thanks for clearing that up for me, I was not sure as I have not had much experience with the stock turbo's. |
#5
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Which way does the flap need to be (closest to actuator or farther) I think now its closer. i would like to just wire it shut so it cant open is that ok to do?
Also can someone help me get the part numbers for the exhaust donuts for the up pipe. They are leaking. One of the exhaust hangers cam undone so the weight of the echaust was hanging on the turbo. I need all 4 donuts upper and lower for the up pipe. Kragen or Napa had do idea what I was talking about. Both the parts guys asked what a powerstroke was! |
#6
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You want the rod as short as you can get it, tighten it down as much as you can then use compressed air in the actuator port to hook it back up to the gate.
Remember, more boost does not always mean more power. For the doughnuts you will only need 2, the lowers are a flared type connection. Go to your Ford dealer for those. |
#7
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To get the wastegate actuator rod as short as it needs to be, you'll have to trim about 3/8" off of the threaded rod.
Yes, the Ford dealer will have the donuts...and they're pretty cheap. My money says you might as well buy new pipes as well because they'll actually be worn out where the donuts ride and they won't seal even with new donuts.
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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. |
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