Safe tune - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1996-2004 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 05-10-2013, 08:48 PM   #1
Registered Member
Regular
 
MidnightBlueGT's Avatar
 
Join Date: Apr 2013
Location: Charlotte
Region: North Carolina
Posts: 3,887
Safe tune

So im ordering exhaust next week most likely and am wanting o/r x but im keeping the stock h to swap out for inspection, but in the future im getting a s/c with a custom tune. so is the custom tune safe for swapping between catted and o/r mid pipes?
Thanks in advance. Love how this forum helps me with my to do list lol.
MidnightBlueGT is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-11-2013, 09:35 AM   #2
Registered Member
Regular
 
cliffyk's Avatar
 
Join Date: Oct 2012
Region: Florida
Posts: 1,001
Other than turning off the catalytic converter monitor routines (by disabling the rear O² sensor signals and heaters); catted or non-catted has nothing to do with tuning our engines.

Nothing to worry about...
__________________
SOLD! - 2003 GT, UPR X, FRPP 24lb/h, Magnaflow, PP 70mm TB & plenum, Delta Force tuned,
Steeda UDPs, Ralco flywheel, RAM HDX clutch, 3.73s, 262 rwHP/305 lb-ft.

New ride (7/1/2013) 1998 Mercedes SL500-5.0L 32V VVT 326/347 HP/tq
cliffyk is offline   Reply With Quote
Old 05-11-2013, 10:45 AM   #3
Registered Member
Regular
 
MidnightBlueGT's Avatar
 
Join Date: Apr 2013
Location: Charlotte
Region: North Carolina
Posts: 3,887
Quote:
Originally Posted by cliffyk View Post
Other than turning off the catalytic converter monitor routines (by disabling the rear O² sensor signals and heaters); catted or non-catted has nothing to do with tuning our engines.

Nothing to worry about...
Thanks man, appreciate it. I really wanted an o/r midpipe
MidnightBlueGT is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-11-2013, 06:06 PM   #4
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,576
Just make sure you are sure the cops around you won't care. I ran around with an O/R pipe for 7 years in NJ and never once had an issue with the police pulling me over for noise or suspecting I was not running cats. My buddy in Wisconsin was pulled over THE SAME DAY, he put his O/R pipe on and fined.
scottydsntknow is offline   Reply With Quote
Old 05-11-2013, 06:11 PM   #5
Registered Member
Regular
 
MidnightBlueGT's Avatar
 
Join Date: Apr 2013
Location: Charlotte
Region: North Carolina
Posts: 3,887
Quote:
Originally Posted by scottydsntknow View Post
Just make sure you are sure the cops around you won't care. I ran around with an O/R pipe for 7 years in NJ and never once had an issue with the police pulling me over for noise or suspecting I was not running cats. My buddy in Wisconsin was pulled over THE SAME DAY, he put his O/R pipe on and fined.
That sucks!
MidnightBlueGT is offline   Reply With Quote
Old 05-11-2013, 09:19 PM   #6
Registered Member
Regular
 
cliffyk's Avatar
 
Join Date: Oct 2012
Region: Florida
Posts: 1,001
A 2-1/2" "off-road" H- or X-pipe will make the exhaust absurdly load and stinky, and not pass emissions testing--and has NO performance advantage over a 2-1/2" "high-flow" catted pipe that will not be as loud or as stinky; and will pass emissions testing.

Why people want one is a mystery to me, but if they do then go for it--WTF...
__________________
SOLD! - 2003 GT, UPR X, FRPP 24lb/h, Magnaflow, PP 70mm TB & plenum, Delta Force tuned,
Steeda UDPs, Ralco flywheel, RAM HDX clutch, 3.73s, 262 rwHP/305 lb-ft.

New ride (7/1/2013) 1998 Mercedes SL500-5.0L 32V VVT 326/347 HP/tq
cliffyk is offline   Reply With Quote
Old 05-11-2013, 09:27 PM   #7
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,576
He said he is going to keep the stock pipe to swap out. I did the same thing every 2 years on emissions day. And no the exhaust is not absurdly loud and stinky. It CAN be too loud for some places especially if you get obnoxious mufflers. I do agree that a good set of high flow cats is not going to really suck up any noticeable power. As far as the smell, as long as you have a set of tails on there its not going to get into the cabin or cause any issues. I ran the O/R pipe for years like I said and never got pulled over once. Combo was FMS ceramic shorties, MAC O/R H pipe and a Dynomax Ultraflow catback.
scottydsntknow is offline   Reply With Quote
Old 05-11-2013, 09:49 PM   #8
Registered Member
Regular
 
03fastblack's Avatar
 
Join Date: Feb 2012
Region: Missouri
Posts: 291
I am running Mac O/R H pipe and slp lm1's and my car is starting to miss on timing I think. It will even kinda jerk when its driving and at idle it makes a popping noise every few seconds. My cousins car did the same thing with the same set up. Do you think it's because of no back pressure?
03fastblack is offline   Reply With Quote
Old 05-11-2013, 10:10 PM   #9
Registered Member
Regular
 
cliffyk's Avatar
 
Join Date: Oct 2012
Region: Florida
Posts: 1,001
Quote:
Originally Posted by 03fastblack View Post
I am running Mac O/R H pipe and slp lm1's and my car is starting to miss on timing I think. It will even kinda jerk when its driving and at idle it makes a popping noise every few seconds. My cousins car did the same thing with the same set up. Do you think it's because of no back pressure?
back pressure myth 1, and back pressure myth 2...
__________________
SOLD! - 2003 GT, UPR X, FRPP 24lb/h, Magnaflow, PP 70mm TB & plenum, Delta Force tuned,
Steeda UDPs, Ralco flywheel, RAM HDX clutch, 3.73s, 262 rwHP/305 lb-ft.

New ride (7/1/2013) 1998 Mercedes SL500-5.0L 32V VVT 326/347 HP/tq
cliffyk is offline   Reply With Quote
Old 05-11-2013, 10:12 PM   #10
Registered Member
Regular
 
03fastblack's Avatar
 
Join Date: Feb 2012
Region: Missouri
Posts: 291
Quote:
Originally Posted by cliffyk View Post
I didn't think it did but idk what the it could be. Ill replace the plugs and see
03fastblack is offline   Reply With Quote
Old 05-12-2013, 08:50 AM   #11
Registered Member
Regular
 
WheelStander's Avatar
 
Join Date: Mar 2012
Location: Charlotte
Region: North Carolina
Posts: 1,470
Midnight...no worries with the cops where we live and ah... Get the mil eliminators and there is a shop Lake Norman way to get your car passed. Nc does not do tailpipe checks anymore.
__________________
Induction: Kenne Bell | wHp: 515 Tq: 503 | 1/4 Mile:11.09@123
WheelStander is offline   Reply With Quote
Old 05-12-2013, 10:34 AM   #12
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,576
Quote:
Originally Posted by 03fastblack View Post
I am running Mac O/R H pipe and slp lm1's and my car is starting to miss on timing I think. It will even kinda jerk when its driving and at idle it makes a popping noise every few seconds. My cousins car did the same thing with the same set up. Do you think it's because of no back pressure?
I'd check the COPs and do the plugs/tune up and go from there. What you describe should not be caused by the exhaust. Might just be a bad O2 also.
scottydsntknow is offline   Reply With Quote
Old 05-12-2013, 11:38 AM   #13
Registered Member
Regular
 
03fastblack's Avatar
 
Join Date: Feb 2012
Region: Missouri
Posts: 291
I'm assuming its the o2's. thanks man
03fastblack is offline   Reply With Quote
Old 05-12-2013, 12:36 PM   #14
Registered Member
Regular
 
MidnightBlueGT's Avatar
 
Join Date: Apr 2013
Location: Charlotte
Region: North Carolina
Posts: 3,887
Quote:
Originally Posted by WheelStander View Post
Midnight...no worries with the cops where we live and ah... Get the mil eliminators and there is a shop Lake Norman way to get your car passed. Nc does not do tailpipe checks anymore.
What's it called??
MidnightBlueGT is offline   Reply With Quote
Old 05-12-2013, 12:43 PM   #15
Registered Member
Regular
 
MidnightBlueGT's Avatar
 
Join Date: Apr 2013
Location: Charlotte
Region: North Carolina
Posts: 3,887
Quote:
Originally Posted by MidnightBlueGT View Post

What's it called??
They just ignore that they're suppose to look at the cats?
MidnightBlueGT is offline   Reply With Quote
Old 05-12-2013, 03:44 PM   #16
Registered Member
Regular
 
WheelStander's Avatar
 
Join Date: Mar 2012
Location: Charlotte
Region: North Carolina
Posts: 1,470
Pretty much they take your word that the muffs are hi flow cats.

You can give me a call when you need to go.
__________________
Induction: Kenne Bell | wHp: 515 Tq: 503 | 1/4 Mile:11.09@123
WheelStander is offline   Reply With Quote
Old 05-12-2013, 03:52 PM   #17
Registered Member
Regular
 
1lowGT's Avatar
 
Join Date: Dec 2011
Region: Missouri
Posts: 3,903
Quote:
Originally Posted by scottydsntknow View Post

I'd check the COPs and do the plugs/tune up and go from there. What you describe should not be caused by the exhaust. Might just be a bad O2 also.
Well I'm his cousin. And my car only misses that's making a pop noise every few seconds. I have already changed my plugs and one of the cops. Will a tuner get rid of that?
__________________
2003 GT - full bolts ons, suspension, and drag radials
1998 cummins - 150hp injectors | FASS fuel kit | 4" straight pipe | 5" lift | BHAF | 20" wheels | edge juice w/ attitude | built auto trans with stall | closing in on 900tq | bigger turbo soon..

Follow me on instagram @nicknold for car and truck pictures
1lowGT is offline   Reply With Quote
Old 05-12-2013, 04:02 PM   #18
Registered Member
Regular
 
MidnightBlueGT's Avatar
 
Join Date: Apr 2013
Location: Charlotte
Region: North Carolina
Posts: 3,887
Quote:
Originally Posted by WheelStander View Post
Pretty much they take your word that the muffs are hi flow cats.

You can give me a call when you need to go.
What's it called? Ill need to in august so i probably will.
MidnightBlueGT is offline   Reply With Quote
Old 05-12-2013, 04:12 PM   #19
Registered Member
Regular
 
cliffyk's Avatar
 
Join Date: Oct 2012
Region: Florida
Posts: 1,001
Quote:
Originally Posted by 1lowGT View Post
Well I'm his cousin. And my car only misses that's making a pop noise every few seconds. I have already changed my plugs and one of the cops. Will a tuner get rid of that?
Unless you have some radical cams and the miss is at idle or low RPMs, or your current tune is quite bad, there is nothing a tune can do to fix misfires--there is some other problem
__________________
SOLD! - 2003 GT, UPR X, FRPP 24lb/h, Magnaflow, PP 70mm TB & plenum, Delta Force tuned,
Steeda UDPs, Ralco flywheel, RAM HDX clutch, 3.73s, 262 rwHP/305 lb-ft.

New ride (7/1/2013) 1998 Mercedes SL500-5.0L 32V VVT 326/347 HP/tq
cliffyk is offline   Reply With Quote
Old 05-12-2013, 04:14 PM   #20
Registered Member
Regular
 
1lowGT's Avatar
 
Join Date: Dec 2011
Region: Missouri
Posts: 3,903
Quote:
Originally Posted by cliffyk View Post

Unless you have some radical cams and the miss is at idle or low RPMs, or your current tune is quite bad, there is nothing a tune can do to fix misfires--there is some other problem
Nope lol stock cams. Alright I think I had the problem figured out
__________________
2003 GT - full bolts ons, suspension, and drag radials
1998 cummins - 150hp injectors | FASS fuel kit | 4" straight pipe | 5" lift | BHAF | 20" wheels | edge juice w/ attitude | built auto trans with stall | closing in on 900tq | bigger turbo soon..

Follow me on instagram @nicknold for car and truck pictures
1lowGT is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1996-2004 Mustang GT

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


» Like Us On Facebook



02:17 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.