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Re: video of test drive around block
[Re: HardcoreB]
#3085398
10/12/22 12:06 PM
10/12/22 12:06 PM
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Joined: May 2011
Posts: 4,489
northern,Ohio,USA
Clanton
OP
master
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OP
master
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
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Nice to see the car up and running again! Thank you.Sometime life gets in the way but I do what I can.
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Re: video of test drive around block
[Re: Clanton]
#3085954
10/14/22 12:42 PM
10/14/22 12:42 PM
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Joined: Sep 2003
Posts: 19,355
north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,355
north of coder
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i wish i could offer you some input, but i have zero supercharger experience. however, i would make a "guess" that pulley ratio would have something to do with that. are you running 1:1 or a slight overdrive ratio ? if the AFR was reasonable when the boost came in, i think i would be happy with that. provided it stayed in the proper range with no detonation when floored as well. i'm trying to learn all i can about this, as i would like to use an 8-71 on an early 392 to put in my "eternal project", that 33 dodge humpback delivery. Cab knows way more about this than i probably ever will. 
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Re: video of test drive around block
[Re: moparx]
#3086005
10/14/22 02:18 PM
10/14/22 02:18 PM
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Joined: May 2011
Posts: 4,489
northern,Ohio,USA
Clanton
OP
master
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OP
master
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
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i wish i could offer you some input, but i have zero supercharger experience. however, i would make a "guess" that pulley ratio would have something to do with that. are you running 1:1 or a slight overdrive ratio ? if the AFR was reasonable when the boost came in, i think i would be happy with that. provided it stayed in the proper range with no detonation when floored as well. i'm trying to learn all i can about this, as i would like to use an 8-71 on an early 392 to put in my "eternal project", that 33 dodge humpback delivery. Cab knows way more about this than i probably ever will. My pulley % is 10% OD 14# I have the afr lean to keep the plugs clean driving to the staging lanes but now I need some fuel to drive it around the neighborhood and be safe under more driving conditions at the track the main[3rd circuit] jets made the afr 11.5 to 1 so I will take from the main what the intermediat jets use.I need to track the rpm drop going from 1 to 2nd part throttle and I think it was 1500 rpm so on a shift it would go from 3500 rpm to 2k with 3.73 gear 28" tire 5k stall 9.5" vert
Last edited by Clanton; 10/14/22 02:23 PM.
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Re: video of test drive around block
[Re: moparx]
#3086184
10/15/22 10:26 AM
10/15/22 10:26 AM
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Joined: May 2011
Posts: 4,489
northern,Ohio,USA
Clanton
OP
master
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OP
master
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
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too bad you aren't closer, i would like to convince you to try a pair of Thermo-Quads.  i really like those, and it would be fun to tune those on your combination. i want to try a set on an 8-71 on an early 392. that is the setup i would like to use in my 33 dodge humpback delivery. That sounds like a lot of work to fit/test a carb that is small for me[linkage,fuel line...] not even getting into the powervalve side on those carbs to adapt them.I sold a box of about 8 to a PA member a long time ago for under 100$ I believe.
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