The line between performance and reliability - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 07-18-2014, 12:14 PM Thread Starter
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The line between performance and reliability

I know that any time that you increase power on most engines you lose reliability to some extent. My truck just turned over 120,000 it is my daily driver. I want keep it another 200,000 miles. I know that people say that if you want it to last for ever keep it stock but who wants to drive a stock 7.3 for that long? I'm thinking that 450 hp is a good limit.

00 f250 ext. cab, lb, 4x4, 142,000, zf 6 speed, South Bend 1944ofe, 4 in lift, 315/75/16 Duck Commander Mts, php hydra, Riff Raff frx, Riff Raff billet compressor wheel, Dorman up pipes,IAH delete, ccv mod, 6637 filter, auto meter gauges, scan guage 2, 4 in diamod eye straight pipe 6 in tip.
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post #2 of 6 Old 07-18-2014, 12:38 PM
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anywhere between 400-450hp.

if you upgrade all the parts with good quality parts the first time, you'll be set.

99.5 f250 7.3 4x4 255k
PHP Phoenix, S&B, 4" Diamond Eye, Hpx, Stancor, RR Billet Wheel, RR AIH Delete, Autometer Gauges, Pro Comp leveled, Transgo Tugger, Billet TQ Converter, Warn Hubs, Int'l Up-Pipes, RR IC-Boots, Non-Ebpv Pedestal, High Flow Outlet, Hucorey's HPOP Lines, RR High Flow Fuel Fittings, RR OCR, Barder 360 Thrust Kit, 08 Tow Mirrors.

Dad-2000 7.3 108k miles, Autometer Gauges, Superchips 1705, RR AIH Delete, 6637, 4" Diamond Eye, BD Billet Wheel, TruCool Max
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post #3 of 6 Old 07-18-2014, 01:19 PM
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I'm by no means a professional 7.3 Guru, and I know a lot of people dislike this guy, but I believe he knows a bit.

Basically, he states that you can increase your power with out losing the engine's longevity. He draws the line at adding bigger performance parts such as bigger turbo, stronger injectors, etc. So, if you just put a tuner, intake, exhaust, maybe some other minor things, you should be fine. But like I said, I'm not an expert. There's some people here who are, though. They'll likely speak later.

2001 6-Speed F250 SCLB - South Bend SFDD250-6 Dual Disc Clutch - 7.3 with DIY 6637 - Diamond Eye Turbo-back 4 inch straight - TS 6-Pos PHP Tunes - Billet X-Wheel - Foil Delete | 1988 5-Speed F250 SCLB - 7.3 IDI - Stock
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post #4 of 6 Old 07-18-2014, 01:36 PM Thread Starter
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I don't think a guy who recommends changing the oil in the hpop reservoir, runs nitrous and propane on his street truck, puts the egt probe in the downpipe, and says that the SCT tuner is better than a 6 pos chip knows much about 7.3 performance.

00 f250 ext. cab, lb, 4x4, 142,000, zf 6 speed, South Bend 1944ofe, 4 in lift, 315/75/16 Duck Commander Mts, php hydra, Riff Raff frx, Riff Raff billet compressor wheel, Dorman up pipes,IAH delete, ccv mod, 6637 filter, auto meter gauges, scan guage 2, 4 in diamod eye straight pipe 6 in tip.
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post #5 of 6 Old 07-18-2014, 03:09 PM
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if you go with the best parts you usually get great reliability.

If you go with a good set of rebuilt, or new performance injectors from any of the big names they should last a very long time.

a built 4r100 from john wood or bts is a must for reliability out of an auto.

a turbo that is matched well for the injectors you choose.
then theres all the other supporting mods.

that guy might be good at working on 7.3's as far as general wrenching goes, but hes not definitely not a performance expert.

99.5 f250 7.3 4x4 255k
PHP Phoenix, S&B, 4" Diamond Eye, Hpx, Stancor, RR Billet Wheel, RR AIH Delete, Autometer Gauges, Pro Comp leveled, Transgo Tugger, Billet TQ Converter, Warn Hubs, Int'l Up-Pipes, RR IC-Boots, Non-Ebpv Pedestal, High Flow Outlet, Hucorey's HPOP Lines, RR High Flow Fuel Fittings, RR OCR, Barder 360 Thrust Kit, 08 Tow Mirrors.

Dad-2000 7.3 108k miles, Autometer Gauges, Superchips 1705, RR AIH Delete, 6637, 4" Diamond Eye, BD Billet Wheel, TruCool Max
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post #6 of 6 Old 07-18-2014, 04:31 PM
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You can do a bit and maintain reliability to at least 450 hp. Any more than that and it will really depend on how you drive it.

Single shots can be more reliable than the stupid spilt shots that these trucks come with stock because you can run less timing to get the same power.

PIS 175/80's, Van Turbo with EBPV, BD Billet Wheel
Lots of money spent at RiffRaff
Holley fuel pump, in tank mods, crappy riding leveling kit, DP-F6, 5 Gauges+Edge CS in dash, CB radio in Dash, over 100 goofy little mods
Still pretty slow, just less slow now.
Quote:
Originally Posted by peixinho View Post
I love finally having my truck back... that 7.3 dog that I was driving was just not cutting it.
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