So what is this upgrade? - Page 4 - Diesel Forum - TheDieselStop.com
'99 & up Upgrades and Aftermarket - 7.3L Engine Upgrading or adding OEM or aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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post #46 of 58 (permalink) Old 05-31-2017, 10:20 AM
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If you don't have a bunch of smoke your fine.

Sorry I missed the valve body question.

The mod valve body tunes don't add line pressure since the shift kit already does. It still changes shift points depending on whether its tow or economy tune.
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99.5 f250 7.3 4x4- 277k FF 160/30, Hydra w/SDK Tunes, S&B CAI, 4" Exhaust, Van turbo w/Riffraff Billet wheel, Autometer Gauges, Built Trans, Trucool Max, 08 Tow Mirrors.


Dads-2000 f250 7.3 4x4- 118k K&N Intake w/Amsoil Filter, 4" Exhaust, Autometer Gauges, Superchip 1705 (Tow Safe), BD Billet Wheel, TruCool Max, 08 Tow Mirrors.
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post #47 of 58 (permalink) Old 07-15-2018, 10:12 AM Thread Starter
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So all in all here are my thoughts on this mod. It cured the surge which was my biggest concern but apparently requires more rpms than stock to keep EGT under control while towing hard. It does create more boost in the process which may produce more power? Not sure I'm entirely happy with it as it requires more attention and actions which is fine for me but not for less attentive drivers (like my wife). It is more fatiguing overall on a long haul with challenging hills. I probably should have just got a ported housing and been done with it. That would have been the easing route to cure the surge.

2000 F250 XLT 4x4 SC 7.3 w/Auto Tranny w/ TC L/U Sw & shift kit, 3 autometer gages, Super Zoodad, PHP Hydra chip, 4" DP/Exhaust w/dual 3.5" outlets, 275/70/18 Kumho AT51s on 8.5" rims, 08 AlumDiffCvr, Bilsteins, 31 row trans cooler, WW, BPV delete, AIH delete, hutch, harpoon and billet FPR (70psi), trans cooler bypass delete by accident, rear air bags, Jimmijammers.
Jayco 26BHS elite, no RV parks...just the woods if possible.
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post #48 of 58 (permalink) Old 07-15-2018, 01:01 PM
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Pick up a riffraff billet wheel and sell the ported 66mm setup on Craigslist.

RR billet wheel will fix surge.

Had mine up to 42 psi no surge
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post #49 of 58 (permalink) Old 07-15-2018, 02:25 PM Thread Starter
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Sounds good but I had the spinning assy balanced before final assy and who knows what they took off the exhaust wheel...might be way out of balance by now.

2000 F250 XLT 4x4 SC 7.3 w/Auto Tranny w/ TC L/U Sw & shift kit, 3 autometer gages, Super Zoodad, PHP Hydra chip, 4" DP/Exhaust w/dual 3.5" outlets, 275/70/18 Kumho AT51s on 8.5" rims, 08 AlumDiffCvr, Bilsteins, 31 row trans cooler, WW, BPV delete, AIH delete, hutch, harpoon and billet FPR (70psi), trans cooler bypass delete by accident, rear air bags, Jimmijammers.
Jayco 26BHS elite, no RV parks...just the woods if possible.
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post #50 of 58 (permalink) Old 07-24-2018, 12:37 PM Thread Starter
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Found a donor OBS style turbo with the original 'WW' which has the factory balance intact. Going to get a 360* rebuild kit and use my old compressor housing parts to create a new baseline since I'm getting good at R&R of the turbo, lol.

2000 F250 XLT 4x4 SC 7.3 w/Auto Tranny w/ TC L/U Sw & shift kit, 3 autometer gages, Super Zoodad, PHP Hydra chip, 4" DP/Exhaust w/dual 3.5" outlets, 275/70/18 Kumho AT51s on 8.5" rims, 08 AlumDiffCvr, Bilsteins, 31 row trans cooler, WW, BPV delete, AIH delete, hutch, harpoon and billet FPR (70psi), trans cooler bypass delete by accident, rear air bags, Jimmijammers.
Jayco 26BHS elite, no RV parks...just the woods if possible.
See my album for a recent pic.

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post #51 of 58 (permalink) Old 07-24-2018, 10:17 PM Thread Starter
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Don't get me wrong, this mod is a blast on the streets and highway when not towing, especially with the 100hp performance tune. But what I need is a towing workhorse, not an Italian stallion...lol. I would say this upgrade is for younger yahoos that like to buy tires.

2000 F250 XLT 4x4 SC 7.3 w/Auto Tranny w/ TC L/U Sw & shift kit, 3 autometer gages, Super Zoodad, PHP Hydra chip, 4" DP/Exhaust w/dual 3.5" outlets, 275/70/18 Kumho AT51s on 8.5" rims, 08 AlumDiffCvr, Bilsteins, 31 row trans cooler, WW, BPV delete, AIH delete, hutch, harpoon and billet FPR (70psi), trans cooler bypass delete by accident, rear air bags, Jimmijammers.
Jayco 26BHS elite, no RV parks...just the woods if possible.
See my album for a recent pic.

Last edited by 69mach1377; 07-25-2018 at 02:41 PM.
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post #52 of 58 (permalink) Old 08-11-2018, 06:43 PM Thread Starter
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So my new old turbo is rebuilt with a 360* kit and I removed the current/bigger one today. Got the scratches on my arms to prove it, lol.
Transferred some stuff over so I can install it in the cool of the morning, fingers crossed.

2000 F250 XLT 4x4 SC 7.3 w/Auto Tranny w/ TC L/U Sw & shift kit, 3 autometer gages, Super Zoodad, PHP Hydra chip, 4" DP/Exhaust w/dual 3.5" outlets, 275/70/18 Kumho AT51s on 8.5" rims, 08 AlumDiffCvr, Bilsteins, 31 row trans cooler, WW, BPV delete, AIH delete, hutch, harpoon and billet FPR (70psi), trans cooler bypass delete by accident, rear air bags, Jimmijammers.
Jayco 26BHS elite, no RV parks...just the woods if possible.
See my album for a recent pic.
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post #53 of 58 (permalink) Old 08-12-2018, 04:38 PM Thread Starter
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All done...intitial impression is lower egt and quicker to boost but not quite as high. There is more boost 'under the curve' in that boost quicker, stays boosted longer. Before max was about 28 and now only 25 on highway bursts.
The real test will come in about a week when we tow and go fishing. Hoping to not hear any surge and not be near 1300 as much and still be able to use my tow tunes.
BTW, I'm getting pretty good at turbo R&R, lol

2000 F250 XLT 4x4 SC 7.3 w/Auto Tranny w/ TC L/U Sw & shift kit, 3 autometer gages, Super Zoodad, PHP Hydra chip, 4" DP/Exhaust w/dual 3.5" outlets, 275/70/18 Kumho AT51s on 8.5" rims, 08 AlumDiffCvr, Bilsteins, 31 row trans cooler, WW, BPV delete, AIH delete, hutch, harpoon and billet FPR (70psi), trans cooler bypass delete by accident, rear air bags, Jimmijammers.
Jayco 26BHS elite, no RV parks...just the woods if possible.
See my album for a recent pic.
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post #54 of 58 (permalink) Old 08-13-2018, 11:53 AM
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In hope it works out for you! Hopefully them less rpms but keep egt in check.

Did you fit a billet 60mm wheel?

99.5 f250 7.3 4x4- 277k FF 160/30, Hydra w/SDK Tunes, S&B CAI, 4" Exhaust, Van turbo w/Riffraff Billet wheel, Autometer Gauges, Built Trans, Trucool Max, 08 Tow Mirrors.


Dads-2000 f250 7.3 4x4- 118k K&N Intake w/Amsoil Filter, 4" Exhaust, Autometer Gauges, Superchip 1705 (Tow Safe), BD Billet Wheel, TruCool Max, 08 Tow Mirrors.
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post #55 of 58 (permalink) Old 08-13-2018, 04:30 PM Thread Starter
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Thanks. Am trying the stock wheel first. It's the old WW.

2000 F250 XLT 4x4 SC 7.3 w/Auto Tranny w/ TC L/U Sw & shift kit, 3 autometer gages, Super Zoodad, PHP Hydra chip, 4" DP/Exhaust w/dual 3.5" outlets, 275/70/18 Kumho AT51s on 8.5" rims, 08 AlumDiffCvr, Bilsteins, 31 row trans cooler, WW, BPV delete, AIH delete, hutch, harpoon and billet FPR (70psi), trans cooler bypass delete by accident, rear air bags, Jimmijammers.
Jayco 26BHS elite, no RV parks...just the woods if possible.
See my album for a recent pic.
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post #56 of 58 (permalink) Old 08-29-2018, 09:25 AM Thread Starter
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Happy to say the 'new' turbo works better for towing than the bigger compressor wheel version. I could use my tow tunes again as the egts are at least 100* lower now. Time to update my signature again...

2000 F250 XLT 4x4 SC 7.3 w/Auto Tranny w/ TC L/U Sw & shift kit, 3 autometer gages, Super Zoodad, PHP Hydra chip, 4" DP/Exhaust w/dual 3.5" outlets, 275/70/18 Kumho AT51s on 8.5" rims, 08 AlumDiffCvr, Bilsteins, 31 row trans cooler, WW, BPV delete, AIH delete, hutch, harpoon and billet FPR (70psi), trans cooler bypass delete by accident, rear air bags, Jimmijammers.
Jayco 26BHS elite, no RV parks...just the woods if possible.
See my album for a recent pic.
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post #57 of 58 (permalink) Old 09-05-2018, 09:22 AM
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Glad it’s working. Id swap in the 9 blade wheel over the ww1. Ww1 raises egts But doesn’t surge as easy

99.5 f250 7.3 4x4- 277k FF 160/30, Hydra w/SDK Tunes, S&B CAI, 4" Exhaust, Van turbo w/Riffraff Billet wheel, Autometer Gauges, Built Trans, Trucool Max, 08 Tow Mirrors.


Dads-2000 f250 7.3 4x4- 118k K&N Intake w/Amsoil Filter, 4" Exhaust, Autometer Gauges, Superchip 1705 (Tow Safe), BD Billet Wheel, TruCool Max, 08 Tow Mirrors.
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post #58 of 58 (permalink) Old 09-05-2018, 09:29 AM Thread Starter
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Thanks...I heard nothing that sounded like the surge of the original turbo under load with a tow tune. The only time the temps got high was in OD going up a hill on the 40hp tow tune. I'm pretty sure those hydra tow tunes were not designed for that, but for towing in 3rd, right?
If the WW gives me issues, I'll try the newer version.

2000 F250 XLT 4x4 SC 7.3 w/Auto Tranny w/ TC L/U Sw & shift kit, 3 autometer gages, Super Zoodad, PHP Hydra chip, 4" DP/Exhaust w/dual 3.5" outlets, 275/70/18 Kumho AT51s on 8.5" rims, 08 AlumDiffCvr, Bilsteins, 31 row trans cooler, WW, BPV delete, AIH delete, hutch, harpoon and billet FPR (70psi), trans cooler bypass delete by accident, rear air bags, Jimmijammers.
Jayco 26BHS elite, no RV parks...just the woods if possible.
See my album for a recent pic.
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