AC pulling tons of power?... - Ford Focus Forum, Ford Focus ST Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum > Ford Focus First Generation > ZETEC Performance (2000-2004)

ZETEC Performance (2000-2004) The place to chat about any 2.0L Zetec engine performance, tuning and exhaust related upgrades.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 08-23-2014, 03:30 PM   #1
disturbinglee
Focus Jr. Enthusiast
 
Join Date: Jan 2014
Fan#: 136033
Location: Coral Springs, FL
What I Drive: 2003, Blue, ZX3

Posts: 40
FF Reputation: 1 disturbinglee Good Standing Member
Buy-Sell-Trade Rating: (0)
AC pulling tons of power?...

Hey guys, i know that having your ac on does affect performance but with my car it seems to make a Huge difference. I have an 03 zx3 and i wasn't sure if this was normal or not. I try to drive without ac bc it drivers better and makes a huge difference with milage but its hot in FL so I can't always do that. Basically just seeing if this was normal or not and if it isn't if you guys have any suggestions. thanks!


disturbinglee is offline  
    Reply With Quote
Sponsored Links
Advertisement
 
Old 08-23-2014, 03:47 PM   #2
gotta_gofast
Focus Jr. Enthusiast
 
Join Date: Jul 2014
Fan#: 178825
Location: Janesville, WI
What I Drive: '07 Black ZX4 ST

Posts: 35
FF Reputation: 1 gotta_gofast Good Standing Member
Buy-Sell-Trade Rating: (0)
On a small engine wrapped in a light car the AC compressor will make a noticeable impact driving. It is rather annoying.
__________________
07 Focus ST-basic bolt ons (daily commuter)
08 Fusion 2.3L-rear baby seat install (wife's daily)
06 F250 powerstroke-big injector, bigger turbo= Go without the smoke show (family hotrod and camper hauler)
gotta_gofast is offline  
    Reply With Quote
Old 08-23-2014, 04:21 PM   #3
disturbinglee
Focus Jr. Enthusiast
 
Join Date: Jan 2014
Fan#: 136033
Location: Coral Springs, FL
What I Drive: 2003, Blue, ZX3

Posts: 40
FF Reputation: 1 disturbinglee Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by gotta_gofast View Post
On a small engine wrapped in a light car the AC compressor will make a noticeable impact driving. It is rather annoying.
Thanks, I figured but I was just checking to make sure
disturbinglee is offline  
    Reply With Quote
Old 08-23-2014, 04:48 PM   #4
1turbofocus
FF Affiliate
 
1turbofocus's Avatar
 
Join Date: Oct 2003
Fan#: 1123
Location: Belmont, NC
What I Drive: 2000 ZX3 / 2002 SVT Turbocharged

Posts: 21,786
FF Reputation: 153 1turbofocus Excellent Standing Member 1turbofocus Excellent Standing Member
Buy-Sell-Trade Rating: (28)
Things that help this a good bit is a tune , 180 deg thermostat , doing this with a Tune can turn on the fans sooner and keeps the engine cooler , this makes for more performance and by having the fans on cooler it lowers the head psi in the compressor and makes turning the compressor easier meaning takes less HP from the engine to run the AC

Tom
__________________
Focus-Power: Your #1 Source for Ford Focus Speed, Tuning & Performance!

Customer Support
AIM: hpdyno
Email: hpdyno@aol.com
Phone: 704-249-3745
Site: focus-power.com

Elder 1turbofocus
1turbofocus is offline  
    Reply With Quote
Old 08-24-2014, 10:50 PM   #5
MineTwine45
Focus Addict
 
MineTwine45's Avatar
 
Join Date: Jan 2014
Fan#: 138537
Location: Sandusky, OH
What I Drive: 2003 Silver Frost ZX5

Posts: 1,301
FF Reputation: 2 MineTwine45 Good Standing Member
Buy-Sell-Trade Rating: (0)
I can feel my A/C compressor kick in and out even when just cruising at a constant speed and RPM. Just the nature of a low-power engine getting hit with a big power draw.
__________________
2003 Focus ZX5 "Ruth" Silver Frost - 30,000 Original Miles - Minor Cosmetic Mods
Quote:
Originally Posted by Deftmetal View Post
I saw a guy drop a wrench on a battery once. The hole in the ceiling was impressive.
MineTwine45 is offline  
    Reply With Quote
Old 08-25-2014, 06:53 AM   #6
amc49
Focus Fanatic
 
Join Date: Mar 2012
Fan#: 96610
Location: Fort Worth, TX
What I Drive: 00 wagon, 02 sedan both zetec atx

Posts: 4,808
FF Reputation: 23 amc49 Great Standing Member
Buy-Sell-Trade Rating: (0)
Yep, I was cursing mine today. They are dead with hot day and mileage over 125K. The ring seal has dropped enough by then to show effect. A brand new engine will motor right through that condition.

I was wondering today based on the response of the engine to throttle if there wasn't more a tune might do since the throttle gets opened up a bunch but nothing really happens. Get deeper though into it to hit the open loop and at a very small bit more of throttle boy it comes on then, like a turbo just kicked in. It has something to do with still trying to run at stoichiometric at lower load.
__________________
Fix the driver first, then fixing the car becomes so much easier.
amc49 is offline  
    Reply With Quote
Old 08-25-2014, 07:58 AM   #7
1turbofocus
FF Affiliate
 
1turbofocus's Avatar
 
Join Date: Oct 2003
Fan#: 1123
Location: Belmont, NC
What I Drive: 2000 ZX3 / 2002 SVT Turbocharged

Posts: 21,786
FF Reputation: 153 1turbofocus Excellent Standing Member 1turbofocus Excellent Standing Member
Buy-Sell-Trade Rating: (28)
A tune and 180 helps a LOT

Tom
__________________
Focus-Power: Your #1 Source for Ford Focus Speed, Tuning & Performance!

Customer Support
AIM: hpdyno
Email: hpdyno@aol.com
Phone: 704-249-3745
Site: focus-power.com

Elder 1turbofocus
1turbofocus is offline  
    Reply With Quote
Old 08-30-2014, 11:30 AM   #8
amc49
Focus Fanatic
 
Join Date: Mar 2012
Fan#: 96610
Location: Fort Worth, TX
What I Drive: 00 wagon, 02 sedan both zetec atx

Posts: 4,808
FF Reputation: 23 amc49 Great Standing Member
Buy-Sell-Trade Rating: (0)
I could see that happening there. Something is wonky when you can open the throttle 15-20 degrees and literally nothing happens. I realize the a/c steals power but the engine simply does not go with more throttle until you get way deep in it, then it suddenly DOES do right. That ain't right, something there in software that is correct with fresh motor is not once it gets old and less ring seal. Probably too hot and too lean for emissions, get richer and colder and boom! It goes then.
__________________
Fix the driver first, then fixing the car becomes so much easier.
amc49 is offline  
    Reply With Quote
Reply

Bookmarks & Social Networks
-->
Thread Tools
Display Modes

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

Forum Jump


All times are GMT -5. The time now is 09:36 AM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : 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 Acura TLX or Fiesta ST. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.