Re: 4bbl vs six pack
[Re: stateroadhog]
#933330
02/21/11 03:10 PM
02/21/11 03:10 PM
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Joined: Dec 2007
Posts: 19,900 Puttin' on the foil in Charles...
not_a_charger
Mr. Big Shot Moparts Moderator
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Mr. Big Shot Moparts Moderator
Joined: Dec 2007
Posts: 19,900
Puttin' on the foil in Charles...
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What about on an otherwise-stock or nearly stock motor, say like the 400 in my 73 wagon? Other than the cool factor, any gains to be made by swapping the 4bbl for a 6bbl setup?
Earning every penny of that moderator paycheck.
DBAP
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Re: 4bbl vs six pack
[Re: not_a_charger]
#933331
02/21/11 03:28 PM
02/21/11 03:28 PM
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Joined: Aug 2003
Posts: 2,466 Answering the call of the wild
ThermoQuad
top fuel
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top fuel
Joined: Aug 2003
Posts: 2,466
Answering the call of the wild
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Six paks rule! Any properly tuned six pak car will outrun it's 4bbl equivalent. Unless you have owned/driven a properly tuned six pak car you have no clue what you are missing. Properly tuned means you used the search function here on our beloved moparts to find the latest revision to "the guide to tuning six paks" You then printed it out and read it more than several times and understood it - heeding the important advice in there before you took a wrench and screw driver to the carbs. Not one real world test other than the links to the hot rod magazine tests has ever given the 6 pak it's fair shake. BTW You can [properly]port a six pak manifold to flow better...Just contact Ryan at Shadydell for assistance! It's not a about total horsepower at the big end it's about the journey to get there, just like the two real world motorcycle riding sayings...it's not the destination it's the journey and if I have to explain you won't understand.
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Re: 4bbl vs six pack
[Re: ThermoQuad]
#933332
02/21/11 03:57 PM
02/21/11 03:57 PM
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Joined: Jan 2003
Posts: 1,476
gtx69
super gas
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super gas
Joined: Jan 2003
Posts: 1,476
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2 barrel until you need more.
Last edited by gtx69; 02/21/11 04:00 PM.
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Re: 4bbl vs six pack
[Re: stateroadhog]
#933334
02/21/11 06:50 PM
02/21/11 06:50 PM
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Joined: Jan 2003
Posts: 31,027 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,027
Oregon
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Six packs look cool but a single four-bbl carb on a good intake will cost less and make more power. All depends on what you're trying to do with the car. Another option is the Edelbrock dual quad intake. I just did some dyno work with the Eddy dual quad and twin Eddy carbs and that was a really sweet setup. Article is in the tech archives if you're interested. That setup also looks pretty nice with the Edelbrock air cleaner. http://www.popularhotrodding.com/tech/1007phr_big_block_mopar_engines/index.html
Last edited by AndyF; 02/21/11 06:51 PM.
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Re: 4bbl vs six pack
[Re: 6PACMAC]
#933338
02/22/11 11:13 AM
02/22/11 11:13 AM
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Joined: Jan 2003
Posts: 24,562 Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
Money to blow, go the 6 pac route. With your hood, big cube motor, a Holley SD and a 850 double pumper should work really nice. And run harder. I'll take a double pumper over a sixpac, with a four speed, any day, just plain more responsive. Unless your power shifting.
while I agree the single 4 is plenty good, a six-pack is just as responsive when tuned. This one flat out destroys the tires, and when you are cruising and decide to lay the hammer down it flat pulls.
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Re: 4bbl vs six pack
[Re: not_a_charger]
#933339
02/22/11 12:07 PM
02/22/11 12:07 PM
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Joined: Jun 2008
Posts: 3,916 usa
lewtot184
master
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master
Joined: Jun 2008
Posts: 3,916
usa
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Quote:
What about on an otherwise-stock or nearly stock motor, say like the 400 in my 73 wagon? Other than the cool factor, any gains to be made by swapping the 4bbl for a 6bbl setup?
on my 69 r/t with a stock 4bbl carb and intake vs a stock 6-pak the car went from 14.00's to 13.30's. this an automatic, 3.23 rear, stock exhaust car.
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