Adjusting idle - Mustang Evolution

Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Pre-2005 V6 Mustang



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 04-05-2011, 03:47 PM   #1
Registered Member
Regular
 
Join Date: Mar 2011
Region: Texas
Posts: 76
Adjusting idle

Alright guys I'm wanting to adjust my idle from 750 to 1k.... Is this possible and how do I do this? If not, then let me know Bc I'm still learning
Cody156 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-05-2011, 04:41 PM   #2
Registered Member
Regular
 
Joshy's Avatar
 
Join Date: Jan 2011
Region: Kansas
Posts: 1,603
Quote:
Originally Posted by Cody156
Alright guys I'm wanting to adjust my idle from 750 to 1k.... Is this possible and how do I do this? If not, then let me know Bc I'm still learning
Why adjust your idle?
__________________
www.petom.biz
Joshy is offline   Reply With Quote
Old 04-05-2011, 04:43 PM   #3
15.3 Second V8 Killer Yo
Legacy
Regular
 
PureVenom's Avatar
 
Join Date: Aug 2004
Region: Louisiana
Posts: 7,212
Send a message via AIM to PureVenom Send a message via MSN to PureVenom Send a message via Yahoo to PureVenom
Re: Adjusting idle

What year car?

If its a newer car and not carbed, odds are you will need a hand held tuner or a chip to do it.

And like was mentioned, why do you want to idle at 1k?
__________________
"When I know more, I'll be forthcoming. Or I won't be forthcoming, and I'll be honestly deceptive." - Les Miles
PureVenom is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-05-2011, 06:27 PM   #4
Registered Member
Regular
 
Join Date: Mar 2011
Region: Texas
Posts: 76
2000 v6

And Bc the way my exhaust is set up you dont really hear it at idle(750) but it has a nice rumble sitting after startup at 1k
Cody156 is offline   Reply With Quote
Old 04-05-2011, 06:33 PM   #5
Registered Member
Regular
 
Joshy's Avatar
 
Join Date: Jan 2011
Region: Kansas
Posts: 1,603
Quote:
Originally Posted by Cody156
2000 v6

And Bc the way my exhaust is set up you dont really hear it at idle(750) but it has a nice rumble sitting after startup at 1k
Wouldn't that be like throwing away gas and bad for your motor? Just guessing
__________________
www.petom.biz
Joshy is offline   Reply With Quote
Old 04-05-2011, 06:37 PM   #6
Registered Member
Regular
 
Join Date: Mar 2011
Region: Texas
Posts: 76
Quote:
Originally Posted by Joshy

Wouldn't that be like throwing away gas and bad for your motor? Just guessing
Probably Change your mpg a little but not noticeably. Maybe a mile or 2. And if you think about it you drive your stang in a range of 750-4000 everyday, so letting it sit 250+ over normal idle wouldn't be hurting it.
Cody156 is offline   Reply With Quote
Old 04-05-2011, 06:37 PM   #7
Registered Member
Regular
 
Join Date: Mar 2011
Region: Texas
Posts: 76
I guess to answer my own question I could find a smaller idle pulley and different belt size
Cody156 is offline   Reply With Quote
Old 04-05-2011, 06:51 PM   #8
15.3 Second V8 Killer Yo
Legacy
Regular
 
PureVenom's Avatar
 
Join Date: Aug 2004
Region: Louisiana
Posts: 7,212
Send a message via AIM to PureVenom Send a message via MSN to PureVenom Send a message via Yahoo to PureVenom
Quote:
Originally Posted by Cody156
I guess to answer my own question I could find a smaller idle pulley and different belt size
Idle is controlled by the computer. It is moderated by the idle air contol valve. An idler pulley is just a pulley used in routing your belt. It has nothing to do with your idle.

You could jack with your iac valve to trick the computer, but then you are setting your car up outside the normal parameters.
__________________
"When I know more, I'll be forthcoming. Or I won't be forthcoming, and I'll be honestly deceptive." - Les Miles
PureVenom is offline   Reply With Quote
Old 04-05-2011, 09:24 PM   #9
Titus Wadicus
Regular
 
svtlx's Avatar
 
Join Date: Jan 2007
Region: Ohio
Posts: 2,103
Send a message via Yahoo to svtlx
Re: Adjusting idle

use the idler pulley to adjust the idle..duh..... why didnt i think of that?
__________________

bbk ssi, 70ml t.b., bbk adj.reg., bd11-a 11psi, e-cam,
racing aod, 2700 stall, 3.42 gears, ported e7, 308ci, 1.7rr, comp .560valve springs, gear drive, high dwell module, msd 6a & coil, bbk off road xpipe, mac cat back, 30lbs inj, pro-m 90mm, welded subframe connectors, boxed upper & lower trailing arms, spherical axle bushings, 255/50/16 tires, 255lph pump, 456hp
svtlx is offline   Reply With Quote
Old 04-06-2011, 02:04 AM   #10
Registered Member
Regular
 
robb15033's Avatar
 
Join Date: Oct 2010
Location: Northern Virginia
Region: Virginia
Posts: 2,109
Re: Adjusting idle

Yes you can adjust your idle. The idle screw is located under the throttle cable on the throttle body. Follow the cable until it ends on a curved bracket. It should be idling at 900.
Typically, like mentioned the computer controls it unless you have installed under drive pulleys. If that's the case, turn the screw with flat head screwdriver clockwise until your at 900 rpms.
Be careful though, if there is something else retarding the idle take care of it (like maintenance items)
__________________
'97 3.8L V6
Pacific Green
1996 SVT Cobra White
robb15033 is offline   Reply With Quote
Old 04-06-2011, 08:29 AM   #11
Moderator Emeritus
Legacy
Regular
 
SpectorV's Avatar
 
Join Date: May 2003
Region: Alabama
Posts: 26,049
Send a message via AIM to SpectorV
Re: Adjusting idle

I would personally not mess with it, it may sound a little better but its not worth all the hassle.
__________________
2003 Cobra Vert (Redfire) #3938 of 5082 @ 05/27/2003
472rwhp/493rwtq -Modification List - Dyno Sheet
2012 Mustang 3.7L M6 (Kona Blue)
2011 Ford Edge Sport (Red Metallic)
SpectorV is offline   Reply With Quote
Old 04-06-2011, 09:00 AM   #12
Registered Member
Regular
 
Join Date: Mar 2011
Region: Texas
Posts: 76
Alright well I'm lookin to get underdrives, will that change my idle at all
Cody156 is offline   Reply With Quote
Old 04-06-2011, 09:24 AM   #13
15.3 Second V8 Killer Yo
Legacy
Regular
 
PureVenom's Avatar
 
Join Date: Aug 2004
Region: Louisiana
Posts: 7,212
Send a message via AIM to PureVenom Send a message via MSN to PureVenom Send a message via Yahoo to PureVenom
Re: Adjusting idle

Um, the computer is still going to command a specific idle. It is going to tell the IAC valve to either open or close the throttle body in order to maintain the idle at it's commanded value. The COMPUTER controls the idle. The Computer has a commanded idle RPM. The COMPUTER will not change it's commanded idle RPM until you get a tuner and you change the commanded RPM and then reflash the COMPUTER.

Do you see a pattern here?
__________________
"When I know more, I'll be forthcoming. Or I won't be forthcoming, and I'll be honestly deceptive." - Les Miles
PureVenom is offline   Reply With Quote
Old 04-06-2011, 09:27 AM   #14
Registered Member
Regular
 
Join Date: Mar 2011
Region: Texas
Posts: 76
Quote:
Originally Posted by PureVenom
Um, the computer is still going to command a specific idle. It is going to tell the IAC valve to either open or close the throttle body in order to maintain the idle at it's commanded value. The COMPUTER controls the idle. The Computer has a commanded idle RPM. The COMPUTER will not change it's commanded idle RPM until you get a tuner and you change the commanded RPM and then reflash the COMPUTER.

Do you see a pattern here?
Haha yeah the pattern is very FAINT but I think I get it.
Cody156 is offline   Reply With Quote
Old 04-06-2011, 09:30 AM   #15
15.3 Second V8 Killer Yo
Legacy
Regular
 
PureVenom's Avatar
 
Join Date: Aug 2004
Region: Louisiana
Posts: 7,212
Send a message via AIM to PureVenom Send a message via MSN to PureVenom Send a message via Yahoo to PureVenom
Re: Adjusting idle

Quote:
Originally Posted by Cody156 View Post
Haha yeah the pattern is very FAINT but I think I get it.
Yeah, sometimes I am a little too vague in my replies...it's something I'm working on.
__________________
"When I know more, I'll be forthcoming. Or I won't be forthcoming, and I'll be honestly deceptive." - Les Miles
PureVenom is offline   Reply With Quote
Old 04-06-2011, 09:38 AM   #16
Registered Member
Regular
 
Join Date: Mar 2011
Region: Texas
Posts: 76
Quote:
Originally Posted by PureVenom

Yeah, sometimes I am a little too vague in my replies...it's something I'm working on.
So I guess the typical answer is to get a tuner right?
Cody156 is offline   Reply With Quote
Old 04-06-2011, 10:45 AM   #17
15.3 Second V8 Killer Yo
Legacy
Regular
 
PureVenom's Avatar
 
Join Date: Aug 2004
Region: Louisiana
Posts: 7,212
Send a message via AIM to PureVenom Send a message via MSN to PureVenom Send a message via Yahoo to PureVenom
Re: Adjusting idle

Quote:
Originally Posted by Cody156 View Post
So I guess the typical answer is to get a tuner right?
For ODBII cars, yes.
__________________
"When I know more, I'll be forthcoming. Or I won't be forthcoming, and I'll be honestly deceptive." - Les Miles
PureVenom is offline   Reply With Quote
Old 04-06-2011, 11:04 AM   #18
Registered Member
Regular
 
Join Date: Mar 2011
Region: Texas
Posts: 76
Quote:
Originally Posted by PureVenom

For ODBII cars, yes.
ODBII?
Cody156 is offline   Reply With Quote
Old 04-06-2011, 11:07 AM   #19
15.3 Second V8 Killer Yo
Legacy
Regular
 
PureVenom's Avatar
 
Join Date: Aug 2004
Region: Louisiana
Posts: 7,212
Send a message via AIM to PureVenom Send a message via MSN to PureVenom Send a message via Yahoo to PureVenom
Re: Adjusting idle

Quote:
Originally Posted by Cody156 View Post
ODBII?
The generation of computer. Mustangs went ODBII in 1996.
__________________
"When I know more, I'll be forthcoming. Or I won't be forthcoming, and I'll be honestly deceptive." - Les Miles
PureVenom is offline   Reply With Quote
Old 04-06-2011, 11:29 AM   #20
Moderator Emeritus
Legacy
Regular
 
SpectorV's Avatar
 
Join Date: May 2003
Region: Alabama
Posts: 26,049
Send a message via AIM to SpectorV
Re: Adjusting idle

get a tuner if you really want it changed and have the tune written for it up the idle. This means you will probably need a custom tune written (best way to go anyway). You can pick your octane so you wont have to run premium if you dont want to as well.
__________________
2003 Cobra Vert (Redfire) #3938 of 5082 @ 05/27/2003
472rwhp/493rwtq -Modification List - Dyno Sheet
2012 Mustang 3.7L M6 (Kona Blue)
2011 Ford Edge Sport (Red Metallic)
SpectorV is offline   Reply With Quote
Old 04-06-2011, 11:55 AM   #21
Registered Member
Regular
 
Join Date: Mar 2011
Region: Texas
Posts: 76
Alright thanks
Cody156 is offline   Reply With Quote
Old 04-07-2011, 01:42 AM   #22
Road Trip!
 
Join Date: Dec 2010
Region: Canada
Posts: 2,203
K by adjusting your idle up your going to go thru brakes a bit quicker because the car is going to push a bit harder when your not on the gas. And as already mentioned a 96 and newer will need a tuner to up the idle because even if you crank the screw to force it to idle higher the adaptive learning will eventually bring it back down to stock setting. Ultimately a tuner is your only option
Everett is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Pre-2005 V6 Mustang

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Adjusting the Clutch pringle9666 Pre-2005 V6 Mustang 10 06-14-2010 12:18 PM
Adjusting Idle and Timing sonicpony03 Pre-2005 V6 Mustang 1 07-23-2008 09:14 PM
adjusting the carb on an 82 GL? I_luv_HP&trq Pre-2005 V6 Mustang 8 09-28-2005 01:14 PM
adjusting the clutch? Murph00 Pre-2005 V6 Mustang 4 01-27-2005 06:02 PM
?adjusting the cam position sensor? Horse Pre-2005 V6 Mustang 24 10-18-2004 07:01 PM

» Like Us On Facebook



10:13 PM


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.