Exhaust 101
Thread Starter
|
Senior User
Joined: Nov 2004
Posts: 118
Likes: 0
Naw, no hurt here. I actually did quite a bit of searching, but I guess not enough or searching incorrectly. But the info I have gained through this posting has been invaluable. Everybody here is really great!
Lead Driver
Joined: Dec 2006
Posts: 6,496
Likes: 94
From: So. Jersey
Since you have enough posts now, why don't you work on your signature (the display on the bottom of your posts) so when you post people will know what you got so we can post more accurately......just saying.
Thread Starter
|
Senior User
Joined: Nov 2004
Posts: 118
Likes: 0
Alot of knowledge here for sure and most have a good approach with helping anyone out.
Since you have enough posts now, why don't you work on your signature (the display on the bottom of your posts) so when you post people will know what you got so we can post more accurately......just saying.
Since you have enough posts now, why don't you work on your signature (the display on the bottom of your posts) so when you post people will know what you got so we can post more accurately......just saying.
Thread Starter
|
Senior User
Joined: Nov 2004
Posts: 118
Likes: 0
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Senior User
Joined: Mar 2010
Posts: 419
Likes: 0
From: Timmins, Ontario, Canada
To answer this one, yes, absolutely. The restriction of gas flow is due to friction against the pipe walls, which increases with gas velocity. Gas velocity for any given flow is lower in a bigger pipe, hence less resistance. Even if your pipe was only 1/2" bigger for the last inch of it, it would still have less resistance to flow than a straight pipe.
Now that's for getting bigger. Changing direction and flowing from larger to smaller diameters adds friction due to "shock loss".
The message is that increasing the size of the pipe at any point and reducing bends improves flow.
Senior User
Joined: Oct 2009
Posts: 136
Likes: 0
I added a fresh air intake myself a while back. I cut a hole in the intake attached a water heater vent and routed it to beside the radiator. I couldn't tell much difference, but then I did nothing to the exhaust.
I am interested to see how that pipe you bought turns out. If you don't mind, let us know.
I am interested to see how that pipe you bought turns out. If you don't mind, let us know.
Check out this info.
https://www.ford-trucks.com/forums/5...r-exhaust.html
Thread Starter
|
Senior User
Joined: Nov 2004
Posts: 118
Likes: 0
To answer this one, yes, absolutely. The restriction of gas flow is due to friction against the pipe walls, which increases with gas velocity. Gas velocity for any given flow is lower in a bigger pipe, hence less resistance. Even if your pipe was only 1/2" bigger for the last inch of it, it would still have less resistance to flow than a straight pipe.
Now that's for getting bigger. Changing direction and flowing from larger to smaller diameters adds friction due to "shock loss".
The message is that increasing the size of the pipe at any point and reducing bends improves flow.
Now that's for getting bigger. Changing direction and flowing from larger to smaller diameters adds friction due to "shock loss".
The message is that increasing the size of the pipe at any point and reducing bends improves flow.
Thread Starter
|
Senior User
Joined: Nov 2004
Posts: 118
Likes: 0
Check out this info.
https://www.ford-trucks.com/forums/5...r-exhaust.html
https://www.ford-trucks.com/forums/5...r-exhaust.html
Senior User
Joined: Sep 2007
Posts: 317
Likes: 0
From: Snohomish, WA
Ok, for what it's worth, if you have a completely sock Ford IDI turbo, the ATS 3" outlet and down pipe is probably the best value around. You can't really go bigger, and everything else you do to the truck to increase performance will be affected by the turbo set up.
Without an inter-cooler, EGT is the big limiter for IDI turbo. I have the 3" elbow/down pipe. Every single change I have made to increase exhaust flow has reduced EGT above 2000 RPM.
Anything you can do to increase the pressure differential between pre-turbo and post-turbo on the exhaust will increase boost/performance and tend to reduce EGT.
For my money the ATS 3" outlet/downpipe is a no brainer. Doing anything else just seems half assed and something that you will either regret, or be replacing when you are looking for more power.
For me, the cheapest route is usually going big right from the start. Every single half-way upgrade has usually found me replacing it with something bigger/better later.
Given the limited number of upgrade parts available for the IDI, you might as well buy the right parts that are available.
Without an inter-cooler, EGT is the big limiter for IDI turbo. I have the 3" elbow/down pipe. Every single change I have made to increase exhaust flow has reduced EGT above 2000 RPM.
Anything you can do to increase the pressure differential between pre-turbo and post-turbo on the exhaust will increase boost/performance and tend to reduce EGT.
For my money the ATS 3" outlet/downpipe is a no brainer. Doing anything else just seems half assed and something that you will either regret, or be replacing when you are looking for more power.
For me, the cheapest route is usually going big right from the start. Every single half-way upgrade has usually found me replacing it with something bigger/better later.
Given the limited number of upgrade parts available for the IDI, you might as well buy the right parts that are available.
Thread Starter
|
Senior User
Joined: Nov 2004
Posts: 118
Likes: 0
Ok, for what it's worth, if you have a completely sock Ford IDI turbo, the ATS 3" outlet and down pipe is probably the best value around. You can't really go bigger, and everything else you do to the truck to increase performance will be affected by the turbo set up.
Without an inter-cooler, EGT is the big limiter for IDI turbo. I have the 3" elbow/down pipe. Every single change I have made to increase exhaust flow has reduced EGT above 2000 RPM.
Anything you can do to increase the pressure differential between pre-turbo and post-turbo on the exhaust will increase boost/performance and tend to reduce EGT.
For my money the ATS 3" outlet/downpipe is a no brainer. Doing anything else just seems half assed and something that you will either regret, or be replacing when you are looking for more power.
For me, the cheapest route is usually going big right from the start. Every single half-way upgrade has usually found me replacing it with something bigger/better later.
Given the limited number of upgrade parts available for the IDI, you might as well buy the right parts that are available.
Without an inter-cooler, EGT is the big limiter for IDI turbo. I have the 3" elbow/down pipe. Every single change I have made to increase exhaust flow has reduced EGT above 2000 RPM.
Anything you can do to increase the pressure differential between pre-turbo and post-turbo on the exhaust will increase boost/performance and tend to reduce EGT.
For my money the ATS 3" outlet/downpipe is a no brainer. Doing anything else just seems half assed and something that you will either regret, or be replacing when you are looking for more power.
For me, the cheapest route is usually going big right from the start. Every single half-way upgrade has usually found me replacing it with something bigger/better later.
Given the limited number of upgrade parts available for the IDI, you might as well buy the right parts that are available.
Senior User
Joined: Sep 2007
Posts: 317
Likes: 0
From: Snohomish, WA
The ATS website kinda blows. I would give them a call. They will probably tell you it is back-ordered or something lame like that. If so, i would get on the list. At some point they will stop making the parts.
Thread
Thread Starter
Forum
Replies
Last Post
ernesteugene
1999 - 2003 7.3L Power Stroke Diesel
25
Feb 1, 2008 08:05 PM
