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AFR does affect idle RPM, suprised! #1103877
10/29/11 10:28 PM
10/29/11 10:28 PM
Joined: Aug 2003
Posts: 43,157
Bend,OR USA
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Cab_Burge Offline OP
I Win
Cab_Burge  Offline OP
I Win
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Joined: Aug 2003
Posts: 43,157
Bend,OR USA
I learned something new today working on a Dominator carb, I have a wide ban on the car and had the AFR up close to 16.2 to 17.4, I enrichened the idle mixture screws 1 full turn and that slowed the idle RPM down 150 to 200 RPM It was at or close to 1200 RPM at first and slowed down to around a 1000 RPM when I fattened it up to around 13.8 to 14.2, it started stinking so I leaned it back out, that speeded up the idle back to 1200 RPM or so

Last edited by Cab_Burge; 10/30/11 01:25 AM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: AFR does affect idle RPM, suprised! [Re: Cab_Burge] #1103878
10/30/11 12:00 AM
10/30/11 12:00 AM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
Cab I did notice that when I pulled the vac cap off of the dr base nipple to attach a vacuum gauge the idle sped up a bit & got slightly choppy (stock 318). I definitely need to buy an LM1 wide band so I can get the eddy 1406 spot on. I'm guessing right now


live every 24 hour block of time like it's your last day on earth
Re: AFR does affect idle RPM, suprised! [Re: RapidRobert] #1103879
10/30/11 02:46 PM
10/30/11 02:46 PM
Joined: Jun 2006
Posts: 257
albemarle, NC
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dusterbd13 Offline
enthusiast
dusterbd13  Offline
enthusiast
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Joined: Jun 2006
Posts: 257
albemarle, NC
for the eddy, im using this guide. working pretty well, put the plug reading part is a PITA with really hot headers.
http://gasalley.thetumbleweeds.net/tech_archive/general/edelbrock_tuning.htm


Michael Crawford CSP 1970 plymouth Duster back under construction: http://www.pro-touring.com/showthread.ph...ouring-makeover 1964 el camino beater shop truck 96403-project-drivabeater-2-0-64-el-camino-this-time






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