Holley Difference - Page 3 - Turbo Dodge Forums : Turbo Dodge Forum for Turbo Mopars, Shelbys, Dodge Daytona, Dodge SRT-4, Chrysler PT Cruiser, Omni and more!
Engine Management, Fuel, Spark, EGTs, and Air/Fuel Ratios This forum includes general electrical, modification, tuning, repair, replacement, identification and restoration of all components mentioned above including SMEC, SBEC, Logic Modules, aftermarket engine management, etc. Nitrous oxide posts go in here. This is the place

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post #31 of 46 Old 06-13-2019, 07:53 PM
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Re: Holley Difference

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Originally Posted by 71hemibird View Post
I was wondering if your carb has an ac cut off switch. He sent the manuals via media mail which is dirt cheap and may take longer, but still it said it should have been here Monday.
Yes, it does but they actually call it a wide open throttle cut-off switch. It'll be on either type carb on a vehicle with AC.

Media mail? Yeah, no tracking on that. I think that kind of mail goes on a slow boat via the Panama Canal!
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post #32 of 46 Old 06-15-2019, 12:09 PM Thread Starter
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Re: Holley Difference

John, would it be to hard to see which carb you have? I mean the numbers on the base, don't take anything apart, just wondering if you could see them with a flash light?
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post #33 of 46 Old 06-15-2019, 12:50 PM
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Re: Holley Difference

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John, would it be to hard to see which carb you have? I mean the numbers on the base, don't take anything apart, just wondering if you could see them with a flash light?
Hah! Would you believe that I've got them written down?

4300018
NR-40110-1
0753 (S/N)

For SC (Sales Code) N94

This is a Holley 5220...
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post #34 of 46 Old 06-15-2019, 02:14 PM Thread Starter
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Re: Holley Difference

That guy on ebay that you showed me has a bunch of different 5220s and cause you have a/c, I guess that be as close as I'm gonna get to what I need. So, I'll see if he has one of those.
Thanks, I'll let you know what happens.
I was looking at this carb I have and noticed that one of the mount ears had broken off in the past and welded back on, no telling is it was done right either. Another reason to get rid of it.
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post #35 of 46 Old 06-15-2019, 02:20 PM
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Re: Holley Difference

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Originally Posted by 71hemibird View Post
That guy on ebay that you showed me has a bunch of different 5220s and cause you have a/c, I guess that be as close as I'm gonna get to what I need. So, I'll see if he has one of those.
Thanks, I'll let you know what happens.
I was looking at this carb I have and noticed that one of the mount ears had broken off in the past and welded back on, no telling is it was done right either. Another reason to get rid of it.
Wow, they welded cast aluminum? Bet it was warped, they tried to bend it and whoops!...

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post #36 of 46 Old 06-15-2019, 08:02 PM
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Re: Holley Difference

I thought the Dodge Rampages didn't have O2 sensors because they were trucks. But if the 1983 Shelby Charger has an O2 sensor wouldn't you need a 6520 carburetor because they have the necessary O2 Feedback solenoid?

In the 1983 factory service manual for your vehicle on the last two pages of the "Fuel" section you should find all the models listed and which carburetor is correct for the Charger Shelby.
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post #37 of 46 Old 06-15-2019, 08:10 PM Thread Starter
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Re: Holley Difference

I haven't got my service manuals yet to look at the numbers. The Shelby may not be listed cause it was a mid year release, I am thinking. I am gonna get rid of this carb, it used a half a tank of gas to go a 100 miles and that was highway driving.
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post #38 of 46 Old 06-16-2019, 10:49 AM
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Re: Holley Difference

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I haven't got my service manuals yet to look at the numbers. The Shelby may not be listed cause it was a mid year release, I am thinking. I am gonna get rid of this carb, it used a half a tank of gas to go a 100 miles and that was highway driving.
Have attached the Carb info out of the '83 FSM.

Technically, yours would be the 3rd or 5th one on the 1st page depending on your transmission. So, a 6520 for either transmission. But notice if it was built for Canada (2nd & 3rd pages): no Cat required for Canada (resonator used) therefore a 5220 is used.

Looks like my Rampage is the 2nd one on the 2nd page (AT), Cat used but the carb is a 5220. If it was built for Calif. or for high altitude (Alt,) then a 6520 is required. However, my "Chrysler Number" of my carb is different than what's shown in the FSM. My carb number is listed in the Parts Manual though.

So where does this leave us? If you do a "stock restore" then a 6520 would need to be used. In theory a 5220 could be used avoiding the O2 sensor requirement.

But how would this affect the SCC (computer)???

Opinions???
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post #39 of 46 Old 06-16-2019, 02:39 PM Thread Starter
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Re: Holley Difference

Wonder what Z28 in the notes mean?
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post #40 of 46 Old 06-16-2019, 03:18 PM
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Re: Holley Difference

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Wonder what Z28 in the notes mean?
Rampage model

You got the Parts Manual downloaded? Look at the bottom of the parts pages and the codes for the different models are explained...
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post #41 of 46 Old 06-16-2019, 05:21 PM Thread Starter
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Re: Holley Difference

Yes, I'm looking at them. I saw one on ebay, a 6520, r40005it's new for almost $500
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post #42 of 46 Old 06-16-2019, 05:43 PM Thread Starter
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Re: Holley Difference

Any idea what the difference is between a carb for an automatic and one for a manual?
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post #43 of 46 Old 06-16-2019, 06:30 PM
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Re: Holley Difference

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Any idea what the difference is between a carb for an automatic and one for a manual?
Not sure on a manual but the an AT has a throttle control which has a cable from the trans. to the linkage of the carb.

Which do you have? An AT or manual?

I just looked at the "Holley 6529's" on eBay. Be careful, there's one seller that's saying "carb for 2.2" when it's for a 1.7. There's also a parts carb being sold as a 6520 when it's a 5220. Wish I had seen that before I rebuilt my carb!

Also, I believe that your carb will need either a vacuum kicker or a solenoid kicker. These control the idle speed.

RockAuto has carbs but don't know if the carbs have the kickers or if RA carries then separate...
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post #44 of 46 Old 06-16-2019, 07:29 PM Thread Starter
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Re: Holley Difference

I have a manual. I was just wondering if an auto would work on a manual. I doubt a manual would work for an auto.
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post #45 of 46 Old 06-16-2019, 08:13 PM
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Re: Holley Difference

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Originally Posted by 71hemibird View Post
I have a manual. I was just wondering if an auto would work on a manual. I doubt a manual would work for an auto.
Did some looking in the FSM and couldn't find anything but maybe I missed it. Maybe it has to do with the kickers. With AT, the trans. throttle control affects the same linkage as the throttle (accelerator) cable does. This in turn affects the kicker. A vacuum or solenoid (kicker) increases throttle/idle when the AC or rear window defroster is used. I don't know when one kicker would be used instead of the other but my Rampage (AT, AC) has the vacuum kicker.

From what I can tell, the carbs are basically the same except for the throttle cut-off switch (for AC) & the kickers...
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