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post #1 of 14 Old 01-28-2013, 05:33 PM Thread Starter
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dumb question

Hi yall, I'm new to the forum, and I love it so far!

here is my dumb question:

I have a 2000 f-350 (with the 7.3 obviously), and I was wondering if I take the catalytic converters out, would that make my fuel economy tank? my brother did it to his gasser, and that is what happened. Also, I was wondering if this would effect back pressure. I have been told that there is now need for back pressure on a turbo'd diesel, and i have heard the opposite as well.

thanks for any help,
Brad
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post #2 of 14 Old 01-28-2013, 05:39 PM
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dumb question

Your turbo provides all the back pressure you need. Last week I went to a turbo back 4" straight on my 2006 6.0L and my mpg actually went up 1.5-2mpg.


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post #3 of 14 Old 01-28-2013, 06:15 PM Thread Starter
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thanks man, i appreciate it.
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post #4 of 14 Old 01-28-2013, 06:18 PM
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TulsaDave is right, I'm not sure why you posted this in the 6.0 forum though. Nevermind!


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Last edited by dowmace; 01-28-2013 at 07:38 PM.
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post #5 of 14 Old 01-28-2013, 07:05 PM
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dumb question

You have a cat on that 2000?


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2006 F-350 Lariat Crew Cab Long Bed 6.0 Diesel
Chrome Pkg All Stock 185,000 miles
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afe intake
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post #6 of 14 Old 01-29-2013, 03:18 AM
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Quote:
Originally Posted by michaelbyoung View Post
You have a cat on that 2000?


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thats what i was thinking ......my 2002 dont have one.......
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post #7 of 14 Old 01-29-2013, 03:31 AM
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You will see an improvement by removing cat and muffler but can't give exact numbers cause every truck is different.

Why wouldn't his truck have a cat? My '94 had one...HAD one lol


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post #8 of 14 Old 01-29-2013, 03:52 AM
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Quote:
Originally Posted by JJFLASH View Post
You will see an improvement by removing cat and muffler but can't give exact numbers cause every truck is different.

Why wouldn't his truck have a cat? My '94 had one...HAD one lol
because i believe only Cali emissions vehicles have CATs.. i haven't seen one on and 90's powerstrokes here on the east coast

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post #9 of 14 Old 01-29-2013, 03:55 AM
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Up here everything has cats and have had for yeeaaaars.


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Mine - 94.5 F250 ZF5: Basics w/a few extras, DIY bumper, steps and exhaust, AFEII, D60, PMF 2.25 RSK, V-codes
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post #10 of 14 Old 01-29-2013, 05:11 AM
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Re: dumb question

Strange. Mine is an e99 and it had a cat.

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