Dual Quad Owners...Question on tuning (Now w/ PICS)
#789762
09/01/10 07:34 AM
09/01/10 07:34 AM
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Joined: Jan 2003
Posts: 5,906
Athens, Greece
Pyper70
OP
master
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OP
master
Joined: Jan 2003
Posts: 5,906
Athens, Greece
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How the heck do you get in between the two carbs to adjust the rear A/F screws? Luckily my vacuum ports will be blocked off because I have a Mech Adv. dizzy. My A/F screws hav a torx inset. I was thinking to cut the tip off of a torx screw driver, set it at an angle, and weld it back in place...
What are your tips for that?
Also, next question is I assume the 500cfm Eddy's are set to run by themselves OOTB, but should I change some metering rods or jets because they will be running in sync with each other. Is there a baseline I should start from with alternate parts or go from how it is OOTB?
This setup is going in on Thursday/Friday most likely. I got the Bouchillon kickdown & throttle linkage.
Last edited by Pyper70; 09/05/10 04:07 PM.
Family owned 1969 Charger R/T DualQuad 440/727/GVO/3.55s
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Re: Dual Quad Owners...Question on tuning
[Re: DJVCuda]
#789767
09/02/10 09:14 AM
09/02/10 09:14 AM
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Joined: Dec 2005
Posts: 1,495
Shelby mi.
JAKE68
pro stock
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pro stock
Joined: Dec 2005
Posts: 1,495
Shelby mi.
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If you just bought a new edelbrock inline intake they have their jetting recomondations included in the package. Having a senior moment and can,t remember if the jets where included or if there was just their recomondation.But did do the jetting and when I threw it on the dyno they where right on.For a duel quad set up those carbs are on the fat side otb.
JAKES AUTOMOTIVE
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Re: Dual Quad Owners...Question on tuning
[Re: Cudajon]
#789770
09/02/10 04:14 PM
09/02/10 04:14 PM
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Joined: Jan 2003
Posts: 5,906
Athens, Greece
Pyper70
OP
master
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OP
master
Joined: Jan 2003
Posts: 5,906
Athens, Greece
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Quote:
I notice you still have the choke linkage on the secondary carb, ditch it, you don't need it there. I also pulled all the linkage that works off it to make sure they didn't affect the tune. You'll have to pull all that aircleaner stuff off there to adjust the idle circuits. On my secondary carb I have the idle screws turned all the way in so they don't affect the idle. Make sure the blades on the primary side of the secondary carb are completely closed. On mine I use the first hole (closest to the plunger) on the accelerator pump, and the second or middle hole on the secondary carb, it works for me. On the secondary carb make sure to plug the powerbrake vacuum hole at the back, I plug the vacuum lines on the front of the primary carb and use the vacuum ports on the secondary carb dizzy or whatever (I have a vacuum gage running off there). I run my power brake vacuum off the primary carb. I also have a fuel pressure gage mounted on my fuel lines to the carbs. Mine like between 5.5 an 6 lbs pressure. I also rin the .110 needle and seats in both carbs fed by a 1/2 inch fuel line with a return to tank line off the fuel filter (like the Hemi's came with). The 02 sensor is a great tuning aid, just takes time to get it all together. Hope that helps.
Jon...I notice from the pics on your site that you have both chokes disconnected on the setup....How does your car warm up? Do you have any close up shot of the dual setup on yours? I guess I have to do some tweaking on the carbs before they go in.
When speaking of dual quad terms...the primary carb is on the rear? and the Secondary is the front?
Family owned 1969 Charger R/T DualQuad 440/727/GVO/3.55s
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Re: Dual Quad Owners...Question on tuning
[Re: Pyper70]
#789773
09/03/10 09:00 PM
09/03/10 09:00 PM
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Joined: Oct 2004
Posts: 16,479
Canada
CrAzYMoPaRGuY
I Live Here
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I Live Here
Joined: Oct 2004
Posts: 16,479
Canada
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My Interceptor has a CH28 and Edelbrocks. I don't run chokes at all, takes about one minute to warm up before I drive away... starts up no problem.  I don't run progressive linkage. I have two Edelbrock 500s. I just use my fingers on the A/F screws too. Pretty danged close together! 
CrAzYMoPaRGuY
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