Upgrades and Aftermarket - 99 & up 7.3L EngineUpgrading 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.
What is the consensus on the oil bypass systems? It seems a little mixed right now. Are the new systems top notch or are there still startup oil pressure problems? Also, is Evanīs Waterless Coolant worth the larger investment (with bypass filter of course) or would a switch to extended life gold be more practical? I was planning oil and coolant bypass systems at 100k along with a 203 t-stat. Who makes the best new water pump?
Sorry for the long post.
~Craig
__________________ Craig
2002 F-250 7.3L 4x4 SC/LB Lariet 97550mi 3-1-09...The usual mods...
"It's 106 miles to Chicago, we got a full tank of gas, half a pack of cigarettes, it's dark, and we're wearing sunglasses."
"Hit it!"
I built my own coolant filter, oil bypass, and transmission filter , just have to get the time to install them . After some debate on filters Donaldson or Fleetguard i opted to do the Donaldson filters exclusivly ( thanks to everyone for thier opinions in my other post). I also use the DIY "6637" BAF as my air intake, love to hear that turbo SING and also did the CCV Mod . I' ve also done the DELO ELC coolant conversion. My next thing will be converting to Synthetic oil probably Rotella T synthetic or Delo 400 synthetic sometimes next month when my shop gets finished , then Flushing the trans and filling with Mobil 1 Synthetic ATF , flushing the Brake lines and power steering before this summer.
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Ya'll buckle up and pull them belts tight, its gonna get rough..
Mine :01 F-350 CrewCab Lariat 4x4, 7.3 PowerStroke, auto, ShortBox. Mods: 3-Gauage A-pillar W/ Autometer Lunar Guages: boost,pyro,trans; DIY Tymar, Muffler Delete, Galaxy DX-33 Radio W/ Wilson 1000, and Optima RED TOP's, Centramatics, Lund Soft Tonneau
Play:
'82 Ford Bronco 302, auto, Galaxy 33v, Wilson 1000
04 Yamaha G22 E , Jake's Long travel lift kit, Fairway Alloy "Hazard " wheels , 23" EFX Blade tires, Jake's SST Safari Bar and Rear Tube bumper.
Color : PPG Orange Crush Pearl w/ Hi- Gloss Black trim ....
Hers: 00 Pontiac Trans Am, (stock)LS1, auto, T-tops.
I built my own coolant filter, oil bypass, and transmission filter , just have to get the time to install them . After some debate on filters Donaldson or Fleetguard i opted to do the Donaldson filters exclusivly ( thanks to everyone for thier opinions in my other post). I also use the DIY "6637" BAF as my air intake, love to hear that turbo SING and also did the CCV Mod . I' ve also done the DELO ELC coolant conversion. My next thing will be converting to Synthetic oil probably Rotella T synthetic or Delo 400 synthetic sometimes next month when my shop gets finished , then Flushing the trans and filling with Mobil 1 Synthetic ATF , flushing the Brake lines and power steering before this summer.
i first started running rotella t almost 40k miles ago, and it is THE best oil i have ever put in any of my vehicles. i have gotten almost 6k miles out of an oil change with little to no visible breakdown. i try to change my oil every 3k miles, but there are occaisions when i'm not able to during 28 days of 12 hour shifts, etc, and rotella is THE best synthetic that i have ever found.
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Blue 2001 F-250 Crew Cab Short Box, Westin bull Bar, PIAA Fog Lamps, K&N Cold Air, Magna Flow 5" Cat Back, 18k mod, Bully Dog 6 Position Chip, Banks TransCommand, and a Quadzilla Xzillaraider Module all riding on 35's under a stock suspension.
Soon to come: DP-Tuner Chip, New Intake, Zoodad mod, Upgraded/Dual HPOP's, Injectors, Intercooler, BTS Tranny, Twin-turbos, 12" Kelderman Air Lift, 44's, Road Armor Front Bumper with Winch, Road Armor Rear Bumper with Corner Guards, Tire Carrier and Winch, and Custom Intake and Exhaust throughout.
Add a Mag Tech cover to the rear end. My diff got so hot with the original ford cover it burnt the paint off. Replaced with a Mag Tech and syn oil & the new cover is larger so holds more fluid. You can also add a temp sensor to the mag tech. I put a 3-way switch in dash and can switch between trans temp and rear diff. Since change never see # higher than 180 on rear diff.
I did a home made tymar intake but recently replaced with the Ford AIS...don't know why but I gained 1 mgp since the change. Maybe due to cold air from front vs hot air from engine on my original mod? Just turned 78K miles and nothing else changed except ULSD and winter fuel so I'm thinking this AIS is a good thing or truck is finally breaking in
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08 F350 King Ranch LB, SRW, Black&Gold/373 gears, 20" tires, everything but a backup camera. Adding Firestone air bags & Tork Lift tie downs. Still Stock & liking it.
01 F350 4x4 off road pkg, auto w/373 gears, Lariet SRW Midnite blue. Dueler AT tires, 4 inch HOG SS exhaust with 5 1/2 " tip. Rancho 9000 shocks, Firestone Air Bags, HOG guages, Lance 1130 camper and 19' Lowe Roughneck
i have found that the truck performs better all around with synthetic fluids
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Early 1999 (4/98) f-250 superduty, 4x4, crewcab, shortbed.
knn intake
banks exhaust
banks turbo housing
banks power elbo
big head waste gate-disconnected
edge juice w/ attitude (just till i get a DP)
4 gauge pod with DiPricol pyro, boost, trans temp, HPOP
What is the consensus on the oil bypass systems? It seems a little mixed right now. Are the new systems top notch or are there still startup oil pressure problems? Also, is Evanīs Waterless Coolant worth the larger investment (with bypass filter of course) or would a switch to extended life gold be more practical? I was planning oil and coolant bypass systems at 100k along with a 203 t-stat. Who makes the best new water pump?
Sorry for the long post.
~Craig
I have been happy with the Oilguard bypass filtration system as it has allowed me to extend my drain interval and use synthetic oil year round. I am planning to put a pressure valve in the bypass so the filter only operates when the oil pressure is greater than 20 psi. That would be while going down the road but not while idling at a light.
I have used Evans coolant for nearly 100K miles. In that time there have been substantial improvements with the low silicate or non-silicate extended life coolants. For ease of maintenance and cost, I would stick with a recommended ELC, like Chevron Delo ELC (AKA Texaco ELC or CAT ELC) or Fleetrite ELC (AKA Rotella ELC). Personally, I would not use the Motorcraft gold as it is not as good as the above coolants. Evans is not bad but try and find some on the road. The 0 psi feature sounds great until you discover that the pump bearing was designed to be wet and under pressure. Finally, the viscosity of PG coolants like Evans is higher and so without changing your pump you actually diminish your cooling compared with ELC. I have a 203š t-stat from Bob Riley but it now seems to open prematurely and I will need to put a new one in. The best mod is his billet t-stat housing. I would get an Airtex water pump from Norther Auto Supply for less than $80 with all gaskets and new bolts. They are the OEM manufacturer.
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2002 F350 Lariat CC 4x4 Auto 4.10 DRW, DP-Tuner F5 live tuned stock, quiet, 40dd, 40, 60, 80 tow, 80e and 120r, B&W GN, BrakeSmart, 'pooned tank, tank and pre-pump mods, 2ĩ Dahl 100 filter, regulated return, BTS dual HPOP, AC singles with EDM 34 lpm nozzles, AIS, H2e, Spearco 6.0 IC, Hypermax 3.5" dp--> MBRP 4" 304SS exhaust, BTS tranny, 203š T-stat, Chevron ELC, coolant filter, Oilguard bypass with Schaeffer 9000, WranglerNW 200 amp alternator & Optima group 31 batteries, Nippon-Denso starter, SPA gauges, SteveRacer mods, Hella 80/100W 9007s, Hella Micro DE foglights, 1000FF driving lights, 220W backup lights, Stancor contactor, Michelin XPS Traction tires, X-Springs, Bilstein shox, custom bumpers but otherwise stock. Nov 30 '99 build engine with 16 K miles, Fluidampr, Comp Cam 910 springs, Melling LPOP and ARP headstuds.
The transmission flush mentioned in the faq section is sure a fine one and certainly an asset to maintaining our transmission longevity.
As a diesel newbie a couple of years ago, I was reluctant to try to change my fluid using this procedure, fearing I did not have the skills needed.
But I mustered up my courage, gave it a try, using Mobil 1 Synthetic transmission fluid, and it worked out beautifully. In fact, that was about 50K miles ago so it is probably getting time to do it again soon.
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2002 2WD XLT CrewCab, 3.73 Limited Slip, Assembled 08-09-01 in Cuautitian, Mexico. BTS Tranny with 6.0L Cooler, KC reverse backup lights with separate on/off dash switch, Undercover Bed Lid, Bilstein shocks, Gentex K-21 auto dimming/temp/compass mirror, Michelin LTX/MS tires, Factory Aluminum Wheels, Door Seal Mod, Ford Severe Duty AIS w/Zoodad, Royal Purple 75W-140, Fleetrite ELC Coolant, Billet Aluminium Thermostat Housing, Ford Factory Bed Liner, Sylvania Silverstar Ultras.
The transmission flush mentioned in the faq section is sure a fine one and certainly an asset to maintaining our transmission longevity.
You posted that about a year ago, and lots of water under the bridge since then.
Mark Kovalsky has revised, edited and updated his 4R100 ATF change procedures. The old version is still in the FAQ section off the home page, but the new version is in the FAQ subforum under "7.3L Engine and Drivetrain FAQ". One big change is that Ford replaced MERCON ATF with MERCON V ATF a few years ago, so the current proper ATF is now MERCON V. Changing ATF: 7.3L PowerStroke Engine and 4R100 Automatic Transmission.
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My Sierra Blanca in the sig pic was a great pickup for 11.5 years. I sold it last year. Replacement is a 2012 F-150 EcoBoost SuperCrew Lariat.
ANSWERS TO MANY
COMMON EVANS NPG & NPG+ QUESTIONS
Question: Do I need a Zero or low pressure radiator cap with NPG+ ?
Answer: NO. You may use your standard radiator pressure cap. In fact, we recommend a 7lb cap to keep NPG+ from absorbing water from the atmosphere. Some users found they could smell coolant, again a 7lb cap eliminated the issue. NPG+ will still cool your system with industry leading efficiency. Of course if you'd like to run a low pressure or even zero pressure system, you will need to purchase a low pressure cap or modify your existing cap. Please consult our tech pages or instruction guide (or call us) before modifying your existing cap!
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1998.5 E350 7.3 extended cargo with Late model doors ,po.wer windows, locks and mirrors.Isspro gauges from DPPI, Power Slot Cryo rotors from DPPI, Hawk LTS from DPPI,NAPA DOT 4 brake fluid,NAPA calipers,Evans coolant,Dieselsite ac control valve,Dieselsite 203* thermostat,BTS valve body, Amsoil tranny fluid,4WD deep tranny pan from Dieselsite, DieselSite transmission bypass filter,Amsoil dual oil filter, Amsoil 15-40 wt oil,4 inch Warpspeed Performance exhaust,Thermo-Tec Exhaust Insulating Wrap, Bilstein shocks,Line-X 2-06-2009 103,400 miles following added Beans stage II single shot injectors, Air Dog, Beans regulated fuel return with fuel bowl delete, glow plugs and Stancor gp relay, Beans modified IDM, Stealth HPOP stage I, Dominator 66 turbo, DpTuner reflashed factory pcm that was split shot injectors to the single shots, 9 tunes from DP Tuner including decel tune,tuflocs on all doors, Snow water-methanol injection stage 3 installed by Beans Diesel, BTS tranny
my best mod for engine longetivity?letting my wife drive it so i dont use my right foot,although prob not the best for the paint department!!!!!!lol
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2002 f250 lariat 7.3 200k(motor has 170k)
original 4r100 tranny....200k and counting
knock on wood......
tony wildman chip......
stock,economy,daily,towing,extreme,smoke.
red elc good for 150k
4r100 1-2 2-3 3-4sonnax accumulator valves,.427 sonnax line pressure mod valve
4.125"yes thats 4 1/8" diy tymar intake(size matters...lol)
AIH delete,ccv delete,zoodad mod,
4" exhaust no muff
built my own leafs for 4.0 of lift!!!!!!
18" xd bronze revolvers with 325 nittos to wrap them
isspro pyro and boost guages on pillar mount....
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