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post #1 of 23 Old 10-07-2006, 01:41 PM Thread Starter
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exhaust backpressure?

I'm new to the forum. I have a 07 f250 6.0l and wanting to install a cat back system. My question is, will the loss of backpressure in exhaust effect the turbo function. Am I understanding the engine needs some backpressure for the sensors to work right to control the turbo.

I have another question about the flutter when you let off the gas. I noticed it at 900 miles. It seems to do it when I'm cruising about 60mph and let off. Kinda sounds like a exhaust brake, but can tell it is something to do with the turbo. Is this normal or does the dealer need to fix something? Will installing a cat back system help this flutter problem?
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post #2 of 23 Old 10-07-2006, 01:46 PM
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you dont need to worry if your just doing a cat back exhaust, the cat will provide plenty of back pressure

That noise your hearing is completely normal. I can make any 6.0 do it and if you have an open air filter it is usually more prominant
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post #3 of 23 Old 10-07-2006, 01:47 PM
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i wont get technical unfortunately (others might help with that) however you should be fine with cat back only. some on the forum will tell you they have had problems with no muffler and others like myself have had no problem with no muffler. imo they do need some backpressure.
the sound your hearing is normal. search threads for that and you will find an explanation.
by the way, welcome!
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post #4 of 23 Old 10-07-2006, 03:45 PM
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What's back pressure?
Just kidding! Welcome to Powerstroke.org!
My '05 is straight piped so those who tell everyone the 6.0 needs back pressure need to explain to me why mine doesn't need back pressure and runs like a raped ape.

'05 F250, CC, FX4, 6.0 PSD
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post #5 of 23 Old 10-07-2006, 04:11 PM
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Quote:
Originally Posted by Rodslinger View Post
What's back pressure?
Just kidding! Welcome to Powerstroke.org!
My '05 is straight piped so those who tell everyone the 6.0 needs back pressure need to explain to me why mine doesn't need back pressure and runs like a raped ape.
Sounds sweet too!
if i could only get my 7.3 to sound like that!

2000 F-350 Superduty
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post #6 of 23 Old 10-07-2006, 05:44 PM
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Ditto.....please explain...Im a newbie! I dont like cats or dogs. All they do is eat and chit.

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post #7 of 23 Old 10-07-2006, 05:51 PM
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You're killin' me Pat!

'05 F250, CC, FX4, 6.0 PSD
SCT Livewire & Chris at TSD tunes
MTW Stage 1 Turbo
DJ's FUEL+ - Fuel Pressure Intensifier
Nitrous Express NXd Stacker
Snow Performance Stage III Water/Meth Kit
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MBRP 4" Turbo Back w/ no Muffler & no Cat
DashBoss on my iPad
ISSPRO Gauges in Triple A-Pillar
High Idle Mod
Iron Horse Front Bumper Replacement
12,000LB MileMarker Winch
2000Watt Power Inverter
Viper 5901 Remote Start/Alarm
Pioneer Avic-D3 Stereo/Nav
Train Horns!
Valentine 1
Velvet ride shackles
RockStars on 33's
Big azz dent from a blown tire.


"It is foolish and wrong to mourn the men who died. Rather we should thank God that such men lived."
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post #8 of 23 Old 10-08-2006, 06:59 AM
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Quote:
Originally Posted by Rodslinger View Post
What's back pressure?
Just kidding! Welcome to Powerstroke.org!
My '05 is straight piped so those who tell everyone the 6.0 needs back pressure need to explain to me why mine doesn't need back pressure and runs like a raped ape.
I don't get it either.. My 06 is a beast completely straight piped.

Looking to buy again
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post #9 of 23 Old 10-08-2006, 07:14 AM
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Alan...call Mythbuster on this one. Maybe you can get your truck on the Discovery Channel! Then again they usually blow things up by the end of the show!

Let me put a differant light on this. The exhaust systems we sell for the 6.0l 9 out of 10 times is a turbo back system with a cat delete and muffler delete. Have never once had a customer call me with a problem. Is it luck? Maybe, but thats alot of luck!

Legendary

Last edited by Patrick; 10-08-2006 at 07:18 AM.
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post #10 of 23 Old 10-08-2006, 07:25 AM
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Thanks Scott!
Yeah I ought to Pat - I love that show. Especially when they beat the crap out of that crash dummy.
There are a lot of us on here who are straight piped 6.0's with no problems and flat out loving it. I really don't think I've ever heard of someone who was straight piped and had to go back because they had problems.

'05 F250, CC, FX4, 6.0 PSD
SCT Livewire & Chris at TSD tunes
MTW Stage 1 Turbo
DJ's FUEL+ - Fuel Pressure Intensifier
Nitrous Express NXd Stacker
Snow Performance Stage III Water/Meth Kit
ARP Studs
MBRP 4" Turbo Back w/ no Muffler & no Cat
DashBoss on my iPad
ISSPRO Gauges in Triple A-Pillar
High Idle Mod
Iron Horse Front Bumper Replacement
12,000LB MileMarker Winch
2000Watt Power Inverter
Viper 5901 Remote Start/Alarm
Pioneer Avic-D3 Stereo/Nav
Train Horns!
Valentine 1
Velvet ride shackles
RockStars on 33's
Big azz dent from a blown tire.


"It is foolish and wrong to mourn the men who died. Rather we should thank God that such men lived."
- General George S. Patton, Jr

Please support our troops!

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