Exhaust Pressure - Ford Powerstroke Diesel Forum
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Old 06-11-2008, 06:15 PM
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Exhaust Pressure

What are some things I can try to do to relieve exhaust pressure?
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Old 06-11-2008, 06:23 PM
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straight pipe it or get a new exhaust
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Old 06-11-2008, 06:28 PM
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Take the turbo off and straight pipe.... Absolutely no restriction then!

Seriously though, on your truck trash the cat and muffler and run a 3" downpipe and 4"straight pipe....The dowpipe is aggravating to install, but once you remove the stock one you'll see how restrictive it is
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Old 06-11-2008, 06:41 PM
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Ahhh... and what brand is best and where is best place to buy? I want it LOUD!
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Old 06-11-2008, 07:02 PM
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Probably be best to talk to one of the vendors here on the site.... Gus from Farmboy Diesel is a cool guy to talk to and he has some budget deals usually.

I'd be careful buying from any ol' Joe Schmoe website. I had some major problems buying my exhaust from rpm outlet.... Took almost 3 months to get my sh*t....

Can't go wrong with the site vendors though
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Old 06-11-2008, 07:13 PM
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bigger exhaust housing for your turbo
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Old 06-11-2008, 07:32 PM
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He's probably better off starting with updating the downpipe....

Turbo work usually isn't constituted until the injectors are updated.....in an OBS anyways
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Old 06-13-2008, 09:27 AM
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Quote:
Originally Posted by scheidt27 View Post
bigger exhaust housing for your turbo
Definitely NOT a bigger turbine housing on a '94-'97. If anything especially with stock injectors going to a smaller like a .84 would be the best for performance. With some very mild injectors a 1.0 housing.

Best things for flow is a down pipe and exhaust. I would recomend Hypermax for the down pipe because it starts at 3" then after the firewall goes to 3.5 and has a 3.5" slip on the end so you just put a 3.5-4" adaptor on it and then you are 4" all the way out. And it's only like $130 which is one of the cheaper ones you can get! 4" exhaust you can either build your own or buy it. Either way works fine.
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Old 06-13-2008, 03:16 PM
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Id email gus if i were you. i currently am working with him on getting me a new exhaust.
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Old 06-13-2008, 06:51 PM
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Quote:
Originally Posted by gtspowerstroke View Post
Definitely NOT a bigger turbine housing on a '94-'97.
i agree with gts. the OBS trucks come with a 1.15 housing stock. man i hate to think of the lag with something bigger

the down pipe would be a very good place to start then gut the cat.the stock exhaust is good enough for stock to stage1 injetors on the OBS trucks.not like the SD.
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