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Re: 4bbl vs six pack
[Re: not_a_charger]
#933341
02/22/11 12:40 PM
02/22/11 12:40 PM
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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:
Because my wagon is a low-compression 73, I wasn't sure if a 6bbl setup would be worth anything performance-wise. It would look cool, though.
probably not. I'd spend that cash on some new gutts for the motor.
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Re: 4bbl vs six pack
[Re: Mr.Yuck]
#933342
02/22/11 01:22 PM
02/22/11 01:22 PM
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Joined: Apr 2005
Posts: 15,134
Kelowna, B.C. Canada
DPelletier
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 15,134
Kelowna, B.C. Canada
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Yes, the observations that the 6 pack is pricier is true. OTOH, the whole "you'll make more power with a 4bbl" thing; maybe, maybe not...it all depends on the motor, which aftermarket manifold and what you mean by "more power". Read the first article I linked, I really like it because the tests were done at around 450hp which is very realistic for alot of enthusiasts. This is the only comprehensive dyno test of the various mopar manifolds that I'm aware of. My only gripe is that they didn't test a stock cast iron 4bbl intake and carb. For those who can't be bothered to read it; Offy dual port - 412hp/436ft lbs offy dual quad - 425/431 Edelbrock performer - 439/455 Weiand Team G - 442/437 Weiand Action Plus - 442/452 Eddy DP4B - 445/456 Mopar 6 Pack - 450/459 Eddy Performer RPM - 451/457 Eddy TM6 - 452/449 Weiand Tunnel Ram - 453/455 Holley Street Dominator - 455/449 Mopar M1 and Eddy Victor - 456/449 Edelbrock Torker - 457/456 ...As you can see the 6 pack (on this setup, anyway) is within 7hp of the best aftermarket setup tested but has the highest peak torque of all of them. 3 of them give up 10 ft lbs to get 2-6 hp more which is no win. The tunnel ram; well, it's a tunnel ram and few people want to have thier carbs sticking through thier hood so that leaves the torker and the RPM as the only real equals.......not bad considering the 6 Pack is a stock setup.   Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: 4bbl vs six pack
[Re: dOc !]
#933346
02/22/11 10:24 PM
02/22/11 10:24 PM
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Joined: Nov 2009
Posts: 2,275
Desert Tracker
HYPER8oSoNic
top fuel
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top fuel
Joined: Nov 2009
Posts: 2,275
Desert Tracker
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Simple solution: Money, not being an option - run the "six pack" It guarantees MORE smiles per mile. OR Run the single 4bbl and high flow manifold. The power factor is phenominal and budget conscious. Either way, it's a win-win situation!!  
"Stupidity is Ignorance on Steroids"
"Yeah, it's hopped to over 160" (quote by Kowalski in the movie Vanishing Point 1970 - Cupid Productions)
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Re: 4bbl vs six pack
[Re: DPelletier]
#933348
02/22/11 10:36 PM
02/22/11 10:36 PM
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Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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Quote:
Yes, the observations that the 6 pack is pricier is true. OTOH, the whole "you'll make more power with a 4bbl" thing; maybe, maybe not...it all depends on the motor, which aftermarket manifold and what you mean by "more power".
Read the first article I linked, I really like it because the tests were done at around 450hp which is very realistic for alot of enthusiasts. This is the only comprehensive dyno test of the various mopar manifolds that I'm aware of. My only gripe is that they didn't test a stock cast iron 4bbl intake and carb.
For those who can't be bothered to read it;
Offy dual port - 412hp/436ft lbs
offy dual quad - 425/431
Edelbrock performer - 439/455
Weiand Team G - 442/437
Weiand Action Plus - 442/452
Eddy DP4B - 445/456
Mopar 6 Pack - 450/459
Eddy Performer RPM - 451/457
Eddy TM6 - 452/449
Weiand Tunnel Ram - 453/455
Holley Street Dominator - 455/449
Mopar M1 and Eddy Victor - 456/449
Edelbrock Torker - 457/456
...As you can see the 6 pack (on this setup, anyway) is within 7hp of the best aftermarket setup tested but has the highest peak torque of all of them. 3 of them give up 10 ft lbs to get 2-6 hp more which is no win. The tunnel ram; well, it's a tunnel ram and few people want to have thier carbs sticking through thier hood so that leaves the torker and the RPM as the only real equals.......not bad considering the 6 Pack is a stock setup.
Dave
At this power level, IMO the DP4B is the better choice than the RPM. The rpm gives up a small amount of torq down low because it's ports are needlessly large for a a guy running stock/unported or only mildly touched up stock heads. The DP4B looks like a stock intake and only gives up 5hp at peak rpm to the RPM intake but makes more down low. You're always looking for the bottleneck, and so long as you run stock heads, any 1/2 decent aftermarket intake is NOT where the flow bottleneck is. At least with the DP (ch4b if you're doing a 440) you don't have the hood clearance issues, etc.
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Re: 4bbl vs six pack
[Re: Scatransit]
#933351
02/23/11 10:45 AM
02/23/11 10:45 AM
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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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16 mpg with 3.55s. 0.80 4th gear, 26" tire, 400 rear wheel hp. 416 small block I think the point many are missing about the six pack - a properly tuned one that is - besides the gas mileage - is the roll on/acceleration [power] a six pack produces that the seatofthepantsometer will confirm - a four barrel can't even come close to...It's like having a passing gear. Just ask those fools in their new corvettes who get suckered from a roll by that old muscle car.  . Reminder we are discussing street cars not drag race cars.
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Re: 4bbl vs six pack
[Re: ThermoQuad]
#933352
02/23/11 12:17 PM
02/23/11 12:17 PM
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Joined: Jan 2003
Posts: 1,775
Marion, SC USA
69RR383
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,775
Marion, SC USA
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Quote:
I think the point many are missing about the six pack - a properly tuned one that is - besides the gas mileage - is the roll on/acceleration [power] a six pack produces that the seatofthepantsometer will confirm - a four barrel can't even come close to...It's like having a passing gear. Just ask those fools in their new corvettes who get suckered from a roll by that old muscle car. .
Reminder we are discussing street cars not drag race cars.
Properly tuned, a six pack will definitely put a smile on your face both from performance and looks. Add a 4-speed and you have twice the fun 
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Re: 4bbl vs six pack
[Re: Scatransit]
#933354
02/23/11 02:10 PM
02/23/11 02:10 PM
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Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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Quote:
Any more MPG numbers out there to share?
70 Charger 440/6 450 HP, DANA 60 4:10, 28" tire, Keisler 5spd TKO .64OD avg 22 MPG,....on the hand my Challenger T/A, 340/6 4" stroker 443 RWHP, factory 883 4spd, 3;91, 28" tire gets about 10 MPG
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Re: 4bbl vs six pack
[Re: DAYCLONA]
#933355
02/23/11 02:12 PM
02/23/11 02:12 PM
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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:
Quote:
Any more MPG numbers out there to share?
70 Charger 440/6 450 HP, DANA 60 4:10, 28" tire, Keisler 5spd TKO .64OD avg 22 MPG,....on the hand my Challenger T/A, 340/6 4" stroker 443 RWHP, factory 883 4spd, 3;91, 28" tire gets about 10 MPG
that's because you have to spin the SB to get the HP numbers.
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Re: 4bbl vs six pack
[Re: ThermoQuad]
#933356
02/23/11 02:27 PM
02/23/11 02:27 PM
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Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOc !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
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Quote:
It's like having a passing gear.
There is one CERTAIN CARB(with those big secondairies) .... that IS a passing-gear ...  
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Re: 4bbl vs six pack
[Re: Mr.Yuck]
#933357
02/23/11 02:29 PM
02/23/11 02:29 PM
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Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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Quote:
Quote:
Quote:
Any more MPG numbers out there to share?
70 Charger 440/6 450 HP, DANA 60 4:10, 28" tire, Keisler 5spd TKO .64OD avg 22 MPG,....on the hand my Challenger T/A, 340/6 4" stroker 443 RWHP, factory 883 4spd, 3;91, 28" tire gets about 10 MPG
that's because you have to spin the SB to get the HP numbers.
Dosen't help with the 3:91's with a 1:1 ratio 4spd,.........the 440/6 with the Keisler 5spd .64OD turns those 4:10's into 2:65's....big difference
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Re: 4bbl vs six pack
[Re: Scatransit]
#933358
02/23/11 03:00 PM
02/23/11 03:00 PM
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Joined: Oct 2006
Posts: 4,165
Florida
cataclysm80
master
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master
Joined: Oct 2006
Posts: 4,165
Florida
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Quote:
Any more MPG numbers out there to share?
1970 340 'Cuda 4 barrel automatic trans with cruise control on = 14 MPG highway miles for me.
Same car swapped to a six barrel with cruise still on = 16 MPG highway miles for me.
4 barrel is 2 barrels + 2 secondaries.
6 barrel is 2 barrels + 4 secondaries = more seat of pants feel.
6 barrel is more expensive and you'll have to learn to tune it to get it set right the first time. (I haven't had to make any adjustments to mine since I put it on about 5 years ago.) 6 barrel has the WOW factor.
Tav
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