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Re: Carb. Problem
[Re: Thumperdart]
#1462403
07/12/13 02:34 AM
07/12/13 02:34 AM
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Joined: Jan 2003
Posts: 3,862
N.E. Ohio
6bblFLASH
OP
master
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OP
master
Joined: Jan 2003
Posts: 3,862
N.E. Ohio
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Blue Holley at tank-3/8ths aluminum line outside frame rail to Carter 120 mech. pump/regulator/3/8ths to bowls.
carries 5-6lbs in all conditions.
70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
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Re: Carb. Problem
[Re: Thumperdart]
#1462406
07/13/13 01:45 AM
07/13/13 01:45 AM
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Joined: Jan 2003
Posts: 3,862
N.E. Ohio
6bblFLASH
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master
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OP
master
Joined: Jan 2003
Posts: 3,862
N.E. Ohio
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Well ran both cars tonight. Anyway back to the drawing board. 3" exhaust and MSD ignition ran 12.18 @ 108 and 12.16 @108. AFR 12.2 both runs. It is however very consistent. So it goes  Have`nt changed the right thing yet. Not spending anymore money to take the dog out for ice cream LOL  Thanks for all the ideas and shared knowledge  Going BOATING 
70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
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Re: Carb. Problem
[Re: Thumperdart]
#1462411
08/01/13 01:47 AM
08/01/13 01:47 AM
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Joined: Jan 2003
Posts: 3,862
N.E. Ohio
6bblFLASH
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master
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OP
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N.E. Ohio
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. . . : : Get a fuel system that will support your needs and then you`ll probably start over in the tuning dept.  
Well back from the lake,soooooooo I did some testing and found that the mechanical pump all by its self would provide 5-6lbs but would fall to 4lbs at speed.
Next the Holley Blue pump by its self. Rev the engine and it would lose pressure. Went to "O" just driving up a hill. 
So the electric was holding back the mech. JUNK
Even tho it had fuel pressure thru the traps.
Cool,,,, a REAL problem to fix. 
Installed a 5/8ths line in the bottom of the tank and put a Mallory pump back there with its own line to the carb.
Have a second line feeding the mech. pump to the carb.
Have 2 pumps with separate lines running at the same time.
Now have 8lbs. ALL the time
Took it to Norwalk tonight off the trailer went 12.54 @ 110.10= same mph--slower ET
Jetted up--- 12.34@ 104.34 60ft was better less mph.
Jetted down =12.59 @ 102.68.
So it finally responds to jetting changes,but makes no more power than before.
So I figure except for "mine-shaft" weather this is all it has in it without better heads and or more gear/or converter.
Too heavy,not enough leverage,,,3.33ratio.
I`m thinking maybe 3.73`s and more compression.
At 8.69cr now.
70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
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Re: Carb. Problem
[Re: Thumperdart]
#1462413
08/01/13 12:55 PM
08/01/13 12:55 PM
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Joined: Jan 2003
Posts: 3,862
N.E. Ohio
6bblFLASH
OP
master
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OP
master
Joined: Jan 2003
Posts: 3,862
N.E. Ohio
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Quote:
Why r u running an electric pump through a mechanical?  You need a REAL fuel system.........period so I`m done for now and will await you new bests when you step up.
Don`t be offended that your solution didn`t fix it,,,,,none of my ideas or cash has done squat either
I`m not running the electric thru the mechanical.
2-lines to 1 fuel log.
The mechanical returns thru the electric when driving, so there is constant flow E.I. no vapor/heat issues.
When the electric is on they are feeding different ends of the fuel log.
So if I want to go faster I`m going have to change something besides accessories 
70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
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Re: Carb. Problem
[Re: Thumperdart]
#1462415
08/01/13 05:08 PM
08/01/13 05:08 PM
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Joined: Jan 2003
Posts: 3,862
N.E. Ohio
6bblFLASH
OP
master
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OP
master
Joined: Jan 2003
Posts: 3,862
N.E. Ohio
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Well I got a false goal right out of the box. Ran 12.22@111 spinning in August heat at the Mopar Nationals in 2010. That was with a just get it to run and drive tune. Well turnsout that was as good as it gets. Those blowers are advertised as 120-bolt on HorsePower. And it is. Figure with a 750 and a good intake sorted out here in Ohio it would run 13.30`s maybe some "O"s in perfect weather,get about 3 of those a year. After all stock iron heads 8.69cr. stock converter 3.33gears and 4,000+lbs? Add 120HP to a 13.30 car = 12.10ish,,,so actually when it ran the 11.95 a month ago on a cold night in Norwalk that was the all she has. Had to try all I could. So if I want more power I need a 12.80 car PLUS the blower 
70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
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If you can't fatten the mixture up enough to slow the cars MPH down in the 1/4 mile then you probally need a better fuel delivery system 
