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Re: My car fall on its face at the 1000 ft? long
[Re: topside]
#1047956
08/06/11 09:34 PM
08/06/11 09:34 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Cab, I think you're about right on the secs/gal; I seem to recall that 20 secs/gal is good for a low-10-sec car.
Fig, take a really good look at your spark plugs & check your float settings, and if there's any rubber hose in the system, make sure there aren't any internal cuts that can create a flap inside the hose that reduces the amount of fuel it can flow. If you're running a stock pickup, make sure the fuel isn't pulling away from it; on my Roadrunner, I added a length of suitable hose that lays on the bottom and extends rearward a bit inside the tank. My Duster uses a sump.
He's right on those numbers BUT those are a VERY
GENERAL number... weight of the car comes into play...
it takes more power to move a 3500# car to low 10s
VS a 2500# car to the same... more power requires
more fuel
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Re: My car fall on its face at the 1000 ft? long
[Re: MR_P_BODY]
#1047957
08/06/11 10:13 PM
08/06/11 10:13 PM
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Joined: Aug 2003
Posts: 43,214
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,214
Bend,OR USA
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Quote:
Quote:
Cab, I think you're about right on the secs/gal; I seem to recall that 20 secs/gal is good for a low-10-sec car.
Fig, take a really good look at your spark plugs & check your float settings, and if there's any rubber hose in the system, make sure there aren't any internal cuts that can create a flap inside the hose that reduces the amount of fuel it can flow. If you're running a stock pickup, make sure the fuel isn't pulling away from it; on my Roadrunner, I added a length of suitable hose that lays on the bottom and extends rearward a bit inside the tank. My Duster uses a sump.
He's right on those numbers BUT those are a VERY
GENERAL number... weight of the car comes into play...
it takes more power to move a 3500# car to low 10s
VS a 2500# car to the same... more power requires
more fuel
 Lots of variables in this hot rodding business  Lots of gremlins also 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: My car fall on its face at the 1000 ft? long
[Re: fig426]
#1047958
08/06/11 10:17 PM
08/06/11 10:17 PM
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Joined: Dec 2006
Posts: 3,667
Arizona
Chris'sBarracuda
master
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master
Joined: Dec 2006
Posts: 3,667
Arizona
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Quote:
1 gallon in 45 seconds from the blue pump. Picked up a Holley 150 black pump today. It's flow rate is pretty good, came with a new regulator, and it's alcohol compatible if I ever decide to change over. Looking like rain for tomorrow so hopefully if it's dry Wednesday night I'll bring it up to Island for a few passes. http://www.holley.com/12-150.asp
45 seconds...
That can't be good.. 
Chris.. 
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Re: My car fall on its face at the 1000 ft? long
[Re: Chris'sBarracuda]
#1047959
08/07/11 12:26 PM
08/07/11 12:26 PM
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Joined: Jan 2004
Posts: 2,103
East Coast, NJ
fig426
OP
top fuel
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OP
top fuel
Joined: Jan 2004
Posts: 2,103
East Coast, NJ
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Island is rained out today. Gonna have to wait until Wednesday.
Chris from New Jersey
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Re: My car fall on its face at the 1000 ft? long
[Re: fig426]
#1047960
08/07/11 05:08 PM
08/07/11 05:08 PM
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Joined: Dec 2004
Posts: 1,489
St. Louis Mo.
10 o to go
"Happy Don"
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"Happy Don"
Joined: Dec 2004
Posts: 1,489
St. Louis Mo.
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do you have a fuel pressure gauge that you can see .Shoud be dropping at that point at losing HP . Fuel line, fuel filter bet is the issue as others have said . 
2009 418" build dan smith built
new 9.96 131.82
6.23 108
1.30 60 foot
best to date 9/15/09
8in 727 430 dana 2860 lb 3040 lb w driver
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Re: My car fall on its face at the 1000 ft? long
[Re: fig426]
#1047962
08/07/11 06:52 PM
08/07/11 06:52 PM
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Joined: Aug 2004
Posts: 9,654
Southern by Choice
Shoozy
I have a foot fetish
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I have a foot fetish
Joined: Aug 2004
Posts: 9,654
Southern by Choice
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How long for the black pump to pump a gallon?
Old, tired, and sometimes broke down. Me, not my car...
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Re: My car fall on its face at the 1000 ft? long
[Re: fig426]
#1047972
08/08/11 06:51 PM
08/08/11 06:51 PM
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Joined: Sep 2004
Posts: 2,093
oberlin, Ohio
Rapid340
top fuel
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top fuel
Joined: Sep 2004
Posts: 2,093
oberlin, Ohio
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I see, I thought you where comparing a 140 GPH free flow black pump to a 110 GPH blue pump. I would still check it.
1971 Factory Appearing Duster 340 11.000 @ 122 mph
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Re: My car fall on its face at the 1000 ft? long
[Re: Rapid340]
#1047973
08/08/11 10:56 PM
08/08/11 10:56 PM
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Joined: Jan 2004
Posts: 903
Saskatchewan, Canada
cudabin
super stock
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super stock
Joined: Jan 2004
Posts: 903
Saskatchewan, Canada
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Just to be sure, did you check the valve springs? I know you said it pulled strong in 1st and second, but I would check seat pressure and open pressure to be sure...  I used to run 9.55 at 138 with nothing but a single Blue pump... Good luck, Arnie
67 Cuda 8.48@ 158.7 mph 1.18 60' 2,600 DA(so far...)
70 Super Bee 440 Six Pack 4-speed. 13.2 @ 104 Stock exhaust/Street tires.
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Re: My car fall on its face at the 1000 ft? long
[Re: fig426]
#1047975
08/11/11 12:28 AM
08/11/11 12:28 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Made 2 passes tonight with the new fuel pump. First one redlighted -.437. 12.01 at 118mph. Total mess of a start but it pulled strong throughout. Second run. 60 foot 1.705 . .1 slower than last week. 330' 4.844. 1/8 7.424 at 95.56mph. 1000' 9.647. 1/4 11.531 at 119.41mph. I did a bad burnout and spun 1st and second. Pulled strong through the lights at about 6400rpm. Have some other things to sort out, like me being the driver  , but I think it should go into the high 10's. Also it runs like turds after I go through the traps. Seems like now it's loaded up with fuel. I'll play with the fuel pressure, maybe a return line. Thanks again to all of you for the help. 
Good to hear it pulls all the way... set the pressure,
set the floats and most likely you will have to do
some jetting
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