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BOG OFF THE LINE #1245693
06/05/12 01:46 AM
06/05/12 01:46 AM
Joined: Dec 2007
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Rapid City, SD
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rickb67 Offline OP
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Rapid City, SD
I HAVE A 67 CUDA 440 APPROX 500 HP. AUTOMATIC WITH 8 INCH CONVERTOR AND TRANS BRAKE. 2 STEP IS AT 2300 ON THE BUTTON. I CHANGED TO E85 WITH A CARB I HAD RUN FOR YEARS. I RELEASE THE BRAKE AT THE LINE AND THE FRONTEND COMES UP AND FOR SPLIT SECOND IT BOGS AND THEN IT HAULS THE MAIL.1.63 60 FOOT AND RUNS 11.16 AT 120.46. JUST WONDERING WHERE TO START.

Re: BOG OFF THE LINE [Re: rickb67] #1245694
06/05/12 01:50 AM
06/05/12 01:50 AM
Joined: May 2011
Posts: 625
Oakville, Wa
HOTMOPR Offline
mopar
HOTMOPR  Offline
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Posts: 625
Oakville, Wa
try bigger squirters..


67 Barracuda, 470" B, Glide, FuelTech FT600, Precision, Ptc, QA1, Calvert, Smith racecraft, Afco, Dana 60. 275 radials
Re: BOG OFF THE LINE [Re: HOTMOPR] #1245695
06/05/12 02:01 AM
06/05/12 02:01 AM
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
dartman366 Offline
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Mt. Vernon, Ohio
Also jet extentions in the secondarys.


Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
Re: BOG OFF THE LINE [Re: dartman366] #1245696
06/05/12 03:45 AM
06/05/12 03:45 AM
Joined: Aug 2003
Posts: 43,213
Bend,OR USA
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Cab_Burge Offline
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Bend,OR USA
Quote:

Also jet extentions in the secondarys.




Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: BOG OFF THE LINE [Re: Cab_Burge] #1245697
06/05/12 11:44 AM
06/05/12 11:44 AM
Joined: Oct 2008
Posts: 99
USA
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BB Dart 69 Offline
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Posts: 99
USA
WHAT size needle & seat? Is this a e-85 carb.

Re: BOG OFF THE LINE [Re: BB Dart 69] #1245698
06/05/12 02:52 PM
06/05/12 02:52 PM
Joined: Aug 2003
Posts: 43,213
Bend,OR USA
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Cab_Burge Offline
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Bend,OR USA
The needles and seast shouldn't affect the intitial hit, but they could


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: BOG OFF THE LINE [Re: Cab_Burge] #1245699
06/05/12 03:57 PM
06/05/12 03:57 PM
Joined: Oct 2008
Posts: 99
USA
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BB Dart 69 Offline
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I was thinking not enough volume. Main well feed not big enough or wrong boosters.

Re: BOG OFF THE LINE [Re: BB Dart 69] #1245700
06/05/12 04:25 PM
06/05/12 04:25 PM
Joined: May 2004
Posts: 2,864
IN
Irun5snd8th Offline
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Posts: 2,864
IN
It either needs one of two things, both meaning more fuel. Jet extensions or increase the fuel pressure from the pump to the regulator and from run as much fuel pressure from the regulator to the carb as you can without pushing past the floats. Somewhere near nine pounds is usually where the floats give up. Had this exact issue on alchol and it was the fuel pressure from the pump to the regulator. Minimum 23 lbs. Give it a shot and let us know.


AFCO, Rons Fuel Injection sponsored Dodge Challenger Mention Street Lethal Motorsports
Re: BOG OFF THE LINE [Re: Cab_Burge] #1245701
06/05/12 05:27 PM
06/05/12 05:27 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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Romeo MI
Quote:

The needles and seast shouldn't affect the intitial hit, but they could




HIGHLY unlikely... there should be plenty of volume
in the bowls even with the stock .110 N/S for coming
off the line... cheapest thing to try is the jet
extensions (race car should have them anyways)...
then squirters

Re: BOG OFF THE LINE [Re: Irun5snd8th] #1245702
06/05/12 05:34 PM
06/05/12 05:34 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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Posts: 52,972
Romeo MI
Quote:

It either needs one of two things, both meaning more fuel. Jet extensions or increase the fuel pressure from the pump to the regulator and from run as much fuel pressure from the regulator to the carb as you can without pushing past the floats. Somewhere near nine pounds is usually where the floats give up. Had this exact issue on alchol and it was the fuel pressure from the pump to the regulator. Minimum 23 lbs. Give it a shot and let us know.




Better recalibrate your gauge... even Holley will
tell you 7.5 is on the edge... when I use to flow
fuel pumps at work 7.5 was the max allowed pressure

Re: BOG OFF THE LINE [Re: MR_P_BODY] #1245703
06/05/12 09:35 PM
06/05/12 09:35 PM
Joined: Dec 2007
Posts: 191
Rapid City, SD
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rickb67 Offline OP
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Rapid City, SD
IT IS A E85 CARB I HAD A GUY CONVERT IT IN DENVER. I SHOULD HAVE ALREADY HAD EXTENSIONS IN THE CARB. THAT WILL BE FIRST THING I DO THAT AND INCREASE FUEL PRESSURE TO 7 FROM 6 LBS. IN TWO WEEKS A BUDDY IS DRIVING THE CAR AND I WILL BE WRENCHING. SO WILL SEE. THANKS GUYS

Re: BOG OFF THE LINE [Re: rickb67] #1245704
06/05/12 10:09 PM
06/05/12 10:09 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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Posts: 52,972
Romeo MI
Quote:

IT IS A E85 CARB I HAD A GUY CONVERT IT IN DENVER. I SHOULD HAVE ALREADY HAD EXTENSIONS IN THE CARB. THAT WILL BE FIRST THING I DO THAT AND INCREASE FUEL PRESSURE TO 7 FROM 6 LBS. IN TWO WEEKS A BUDDY IS DRIVING THE CAR AND I WILL BE WRENCHING. SO WILL SEE. THANKS GUYS





What kind of altitude did you run before and now...
it can be dog lean

Re: BOG OFF THE LINE [Re: MR_P_BODY] #1245705
06/05/12 11:42 PM
06/05/12 11:42 PM
Joined: Feb 2006
Posts: 686
PA
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ajcasini Offline
mopar
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Posts: 686
PA
What type of carb is this your are running? What IAB and IFR are in the carburator? Also check Float level, if its too high it can spill over into the carb if too low you can starve it for fuel.

Any other specs you can provide would help find a solution.

Re: BOG OFF THE LINE [Re: ajcasini] #1245706
09/17/12 09:49 PM
09/17/12 09:49 PM
Joined: Aug 2008
Posts: 4,071
Mo.
racerx Offline
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Mo.
I'm having a similar problem this past weekend so i'll give it a

Re: BOG OFF THE LINE [Re: racerx] #1245707
09/18/12 03:03 AM
09/18/12 03:03 AM
Joined: Dec 2007
Posts: 191
Rapid City, SD
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rickb67 Offline OP
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Rapid City, SD
Spent labor day weekend at TVD racing. Fuel presure at 7 and jet extensions installed.Went from 1.58 to 1.60 60ft times to 1.52 1.53. Car ran best of 10.89 at 123 mph prior was 11.11 at 120. Son kept car and trailer in Sioux Falls cause i was going back this weekend to do some more tweaking but had a front runner seperate so had to load up for the weekwnd :rant.New tire ordered so am going to Oahe speedway this next weekend.

Re: BOG OFF THE LINE [Re: rickb67] #1245708
09/18/12 08:43 AM
09/18/12 08:43 AM
Joined: Feb 2006
Posts: 969
OH--IO
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360904 Offline
super stock
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Joined: Feb 2006
Posts: 969
OH--IO
My first pass Friday, Bog off the line, wth? Larry came over and sprayed the squirter out with brake parts cleaner and bog gone...







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