Car running worse after lunchbox delete? - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus Second Generation > DURATEC Performance (2008-2011)

DURATEC Performance (2008-2011) The place to chat about any Duratec 20 engine performance, tuning and exhaust related upgrades.

Search This Forum | Image Search | Advanced Search    
FocusFest

Like Tree2Likes
  • 1 Post By zacautomotive
  • 1 Post By mac.mogul
Reply
 
LinkBack Thread Tools Display Modes
Old 01-01-2019, 08:36 PM   #1
Focus Enthusiast
 
BlackMk2's Avatar
 
Join Date: Jun 2018
Fan#: 399922
Location: Old Saybrook, CT
What I Drive: 2011 Focus SES

Posts: 103
Points 263, Level 5
Points: 263, Level: 5 Points: 263, Level: 5 Points: 263, Level: 5
Level Up 26% Completed
Level up: 26% Level up: 26% Level up: 26%
Forum Activity 55%
Activity: 55% Activity: 55% Activity: 55%
FF Reputation: 1 BlackMk2 Good Standing Member
Buy-Sell-Trade Rating: (0)
Car running worse after lunchbox delete?

Ever since i got the lunchbox delete done it seems like there is less power down low, it could be me though. The new pipe is 2.5" so maybe thats why. Could that make it run lean or worse?


BlackMk2 is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 01-01-2019, 08:53 PM   #2
Focus Addict
 
zacautomotive's Avatar
 
Join Date: Jun 2018
Fan#: 402829
Location: Pleasant Garden, NC
What I Drive: 2010 Ford Focus,2017 Ford Fiesta ST

Posts: 660
Points 755, Level 14
Points: 755, Level: 14 Points: 755, Level: 14 Points: 755, Level: 14
Level Up 55% Completed
Level up: 55% Level up: 55% Level up: 55%
Forum Activity 20%
Activity: 20% Activity: 20% Activity: 20%
FF Reputation: 2 zacautomotive Good Standing Member
Buy-Sell-Trade Rating: (0)
I have the fswerks race catback exhaust system. I have never had a issue. Maybe you are overthinking it.

Sent from my LG-LS997 using FF Mobile
wfocus11 likes this.
zacautomotive is online now  
    Reply With Quote Quick reply to this message
Old 01-01-2019, 09:05 PM   #3
Focus Enthusiast
 
BlackMk2's Avatar
 
Join Date: Jun 2018
Fan#: 399922
Location: Old Saybrook, CT
What I Drive: 2011 Focus SES

Posts: 103
Points 263, Level 5
Points: 263, Level: 5 Points: 263, Level: 5 Points: 263, Level: 5
Level Up 26% Completed
Level up: 26% Level up: 26% Level up: 26%
Forum Activity 55%
Activity: 55% Activity: 55% Activity: 55%
FF Reputation: 1 BlackMk2 Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by zacautomotive View Post
I have the fswerks race catback exhaust system. I have never had a issue. Maybe you are overthinking it.

Sent from my LG-LS997 using FF Mobile
Yea probably, i over think things too much lol
BlackMk2 is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 02-21-2019, 12:49 PM   #4
Focus Fanatic
 
mac.mogul's Avatar
 
Join Date: Oct 2011
Fan#: 90409
Location: Wichita, KS
What I Drive: 2011 Sterling Grey SES Sedan

Posts: 4,489
Points 7,410, Level 57
Points: 7,410, Level: 57 Points: 7,410, Level: 57 Points: 7,410, Level: 57
Level Up 30% Completed
Level up: 30% Level up: 30% Level up: 30%
Forum Activity 12%
Activity: 12% Activity: 12% Activity: 12%
FF Reputation: 21 mac.mogul Great Standing Member
Buy-Sell-Trade Rating: (1)
You reduced back-pressure in your exhaust system without tuning to compensate. There will be less power at lower RPM.

My advice would be to reset the ECU by disconnecting the battery for a while, make sure your air filter is clean, clean the MAF, clean the throttle body, make sure your spark plugs are in good shape and gapped correctly.
wfocus11 likes this.
__________________
2011 SES 5spd #006 >> SR #213

What other people think of me is none of my business.
mac.mogul is offline  
    Reply With Quote Quick reply to this message
Old 02-21-2019, 02:07 PM   #5
Focus Enthusiast
 
Join Date: Feb 2012
Fan#: 95271
Location: Sacramento, CA
What I Drive: 2011 White Focus Sedan S (5 speed)

Posts: 227
Points 171, Level 3
Points: 171, Level: 3 Points: 171, Level: 3 Points: 171, Level: 3
Level Up 43% Completed
Level up: 43% Level up: 43% Level up: 43%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 1 wfocus11 Good Standing Member
Buy-Sell-Trade Rating: (0)
Recently had my lunchbox removed and the car feels fine. Was it just the lunchbox removed and the rest of the exhaust is stock?
wfocus11 is offline  
    Reply With Quote Quick reply to this message
Old 02-24-2019, 01:46 PM   #6
Focus Enthusiast
 
BlackMk2's Avatar
 
Join Date: Jun 2018
Fan#: 399922
Location: Old Saybrook, CT
What I Drive: 2011 Focus SES

Posts: 103
Points 263, Level 5
Points: 263, Level: 5 Points: 263, Level: 5 Points: 263, Level: 5
Level Up 26% Completed
Level up: 26% Level up: 26% Level up: 26%
Forum Activity 55%
Activity: 55% Activity: 55% Activity: 55%
FF Reputation: 1 BlackMk2 Good Standing Member
Buy-Sell-Trade Rating: (0)
Yea just the lunchbox removed, and now a 2.5" pipe in its place. I plan on buying the fswerks street exhaust soon though.

And i recently changed the spark plugs and RMM (Old one was shot) that made the car feel a lot better. Factory plugs were in terrible shape.
BlackMk2 is offline  
    Reply With Quote Quick reply to this message
Old 02-26-2019, 01:49 AM   #7
Focus Fanatic
 
Join Date: Mar 2012
Fan#: 96610
Location: Fort Worth, TX
What I Drive: 00 wagon, 02 sedan both zetec atx

Posts: 15,346
Points 9,483, Level 65
Points: 9,483, Level: 65 Points: 9,483, Level: 65 Points: 9,483, Level: 65
Level Up 45% Completed
Level up: 45% Level up: 45% Level up: 45%
Forum Activity 47%
Activity: 47% Activity: 47% Activity: 47%
FF Reputation: 62 amc49 Excellent Standing Member
Buy-Sell-Trade Rating: (0)
Broken butt dyno. Most would say they picked up '20 hp.'.
__________________
Fix the driver first, then fixing the car becomes so much easier..........
amc49 is offline  
    Reply With Quote Quick reply to this message
Reply

Bookmarks & Social Networks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
What I Drive
Year, color, and model of your car. Example: 2003 Focus Centennial Edition Sedan
Name
Your real name.
City
State
Country
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 02:57 PM.


Copyright 2002-2015 FocusFanatics.com. All Rights Reserved : : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Mazda CX-3, Audi S3, Mazda MX-5 Miata and Acura TLX. You can find all Ford Focus, Focus ST and Focus RS related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. If you own other makes have a look at Challenger Hellcat Forum, Charger Hellcat Forum, Cadillac ATS-V Forum, Cadillac CTS-V Forum, Lexus RC-F Forum, Lexus GS-F Forum, Mercedes GLA Forum, Mercedes GLE Forum and Volvo XC90 Forum.




 

Search Engine Optimization by vBSEO 3.6.1