Previous Thread
Next Thread
Print Thread
Page 3 of 4 1 2 3 4
Re: Down on Power [Re: chryco] #1312238
10/17/12 02:20 PM
10/17/12 02:20 PM
Joined: Aug 2003
Posts: 43,309
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,309
Bend,OR USA
Quote:

Thanks for asking , but I think it`s adequate.
The fuel system has a 5 Gal. fuel cell #12 from the cell to the BG filter and BG400 pump then #10 to the BG reg and #8 to the carb. I`m getting 9 # at the line.






I had one of the BG fuel filters like yours on my Duster between the pump and the tank, it is a 10 micron element Replace it with a 80 micron or bigger filter(move the BG up front between the pump and the regulator ) and you may be pleasently suprised on the results The only reason I found out about the element size being to small is when I put the wide ban on my car, it would start to go lean from the hit of the throttle all the way to the end of the 1/4. It wouldn't go lean enough to make it miss or lay over but it was lean enough to not run like other cars with similar engine power on the dyno Someone on here had said the same thnig about my filter so I called Magnefuel and they confirm that high volume electric race pumps don't like real fine filter elements before the pump Try bypassing the filter for one run and see


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Down on Power [Re: Cab_Burge] #1312239
10/17/12 02:41 PM
10/17/12 02:41 PM
Joined: Jun 2003
Posts: 9,225
Charleston
S
sixpackgut Offline
Drag Week Mod Champion
sixpackgut  Offline
Drag Week Mod Champion
S

Joined: Jun 2003
Posts: 9,225
Charleston
I'm not sure about this and would like to know

Will gear effect MPH? I can see it effecting ET by 60 ft'ing better but HP calcs don't ask for gear. they just ask for HP and weight and since this car in question doesn't MPH either I have to question whether gear is the obvious reason. If anything, a really effed up converter might be the problem

like Cab said, maybe the filter is the problem but at 9 lbs crossing the line, Could that really be the problem? Now, if 9lbs is to much and your flooding the engine, I would think if your dumping way to much fuel in the motor it could be washing the plugs clean but they would probably be dripping but would cause the engine to be way down on power.

taking it to a chassis dyno is something I would do. maybe your timing light is off from the one used on the dyno. are the secondaries opening? when you figure this out, i'm sure we would all love to hear the results


Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: Down on Power [Re: sixpackgut] #1312240
10/17/12 03:11 PM
10/17/12 03:11 PM
Joined: Jan 2007
Posts: 3,695
nc
E
emarine01 Offline
master
emarine01  Offline
master
E

Joined: Jan 2007
Posts: 3,695
nc
This is where a tach play back is a good tool, its all about shift recovery and the amount of ass in the high gear pull

Re: Down on Power [Re: sixpackgut] #1312241
10/17/12 03:21 PM
10/17/12 03:21 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
Quote:

I'm not sure about this and would like to know

Will gear effect MPH? I can see it effecting ET by 60 ft'ing better but HP calcs don't ask for gear. they just ask for HP and weight and since this car in question doesn't MPH either I have to question whether gear is the obvious reason. If anything, a really effed up converter might be the problem

like Cab said, maybe the filter is the problem but at 9 lbs crossing the line, Could that really be the problem? Now, if 9lbs is to much and your flooding the engine, I would think if your dumping way to much fuel in the motor it could be washing the plugs clean but they would probably be dripping but would cause the engine to be way down on power.

taking it to a chassis dyno is something I would do. maybe your timing light is off from the one used on the dyno. are the secondaries opening? when you figure this out, i'm sure we would all love to hear the results




I'm sure his gauge says 9# but I will guarantee that
it isnt accurate otherwise it would be pouring past
the needle and seat... it could very well be too
small of a needle and seat but its the same stuff
that he ran on the dyno.... basically you used THEIR
ignition and THEIR fuel system so those are the places
I would look

Re: Down on Power [Re: MR_P_BODY] #1312242
10/17/12 10:52 PM
10/17/12 10:52 PM
Joined: Dec 2006
Posts: 3,667
Arizona
C
Chris'sBarracuda Offline
master
Chris'sBarracuda  Offline
master
C

Joined: Dec 2006
Posts: 3,667
Arizona
You either have a really "Happy Dyno", or a serious problem somewhere..

Never heard any complaints on here about Barton's dyno..

Since it's a new converter, and a Power Glide, I would definitely look there first..

I put a new converter in my 540" B1 w/Glide 3000#.. (thought it was making close to 900hp) and it went 9.40 @ 143..

Immediately took it out, put in a trusted converter, and went 8.78 @ 153+..

Fuel filter in front of the pump..

2800# and 875 hp should net you at least 8.90's @ 150+..

BTW.. That thing should stall at least 6400 rpm imo..



Chris..

Re: Down on Power [Re: Chris'sBarracuda] #1312243
10/17/12 11:21 PM
10/17/12 11:21 PM
Joined: Jun 2003
Posts: 9,225
Charleston
S
sixpackgut Offline
Drag Week Mod Champion
sixpackgut  Offline
Drag Week Mod Champion
S

Joined: Jun 2003
Posts: 9,225
Charleston
Quote:



Since it's a new converter, and a Power Glide, I would definitely look there first..

I put a new converter in my 540" B1 w/Glide 3000#.. (thought it was making close to 900hp) and it went 9.40 @ 143..

Immediately took it out, put in a trusted converter, and went 8.78 @ 153+..




Chris..




ok, that's crazy. was the converter slipping that much or was it just so tight that it bogged the engine down? was the converter fixed and did it work after that?


Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram

performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: Down on Power [Re: sixpackgut] #1312244
10/17/12 11:42 PM
10/17/12 11:42 PM
Joined: Dec 2006
Posts: 3,667
Arizona
C
Chris'sBarracuda Offline
master
Chris'sBarracuda  Offline
master
C

Joined: Dec 2006
Posts: 3,667
Arizona
Quote:

Quote:



Since it's a new converter, and a Power Glide, I would definitely look there first..

I put a new converter in my 540" B1 w/Glide 3000#.. (thought it was making close to 900hp) and it went 9.40 @ 143..

Immediately took it out, put in a trusted converter, and went 8.78 @ 153+..




Chris..




ok, that's crazy. was the converter slipping that much or was it just so tight that it bogged the engine down? was the converter fixed and did it work after that?





Turned out to be a bad stator/sprag combo..

Brand new converter.. Was fixed, and went .05 slower than my current converter, but same mph..

But, it was .1 and 1.5-2 mph slower t-stop racing.. (Supposed to be a copy of my other converter, but with a sprag, to get more mph) Didn't happen..

Glides and converters are very touchy.. But once you find one you like, you'll fight to the death to keep it..



Chris..

Re: Down on Power [Re: Chris'sBarracuda] #1312245
10/18/12 01:23 AM
10/18/12 01:23 AM
Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
chryco Offline OP
super stock
chryco  Offline OP
super stock

Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
The new converter`s a Neal Chance 9" custom unit (NOT a two piece unit ) I called Marty and that`s what was spec`d out with ALL my car`s specs as well as the dyno sheet . This one`s not gonna be easy !!!!!
Thx for you`re help !
chryco


Last edited by chryco; 10/18/12 10:51 PM.

Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
Re: Down on Power [Re: Cab_Burge] #1312246
10/18/12 01:31 AM
10/18/12 01:31 AM
Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
chryco Offline OP
super stock
chryco  Offline OP
super stock

Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
Quote:

Quote:

Thanks for asking , but I think it`s adequate.
The fuel system has a 5 Gal. fuel cell #12 from the cell to the BG filter and BG400 pump then #10 to the BG reg and #8 to the carb. I`m getting 9 # at the line.






I had one of the BG fuel filters like yours on my Duster between the pump and the tank, it is a 10 micron element Replace it with a 80 micron or bigger filter(move the BG up front between the pump and the regulator ) and you may be pleasently suprised on the results The only reason I found out about the element size being to small is when I put the wide ban on my car, it would start to go lean from the hit of the throttle all the way to the end of the 1/4. It wouldn't go lean enough to make it miss or lay over but it was lean enough to not run like other cars with similar engine power on the dyno Someone on here had said the same thnig about my filter so I called Magnefuel and they confirm that high volume electric race pumps don't like real fine filter elements before the pump Try bypassing the filter for one run and see




Thanks that`s an easy one off the list !
chryco



Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
Re: Down on Power [Re: MR_P_BODY] #1312247
10/18/12 01:40 AM
10/18/12 01:40 AM
Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
chryco Offline OP
super stock
chryco  Offline OP
super stock

Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
Quote:

Quote:

I'm not sure about this and would like to know

Will gear effect MPH? I can see it effecting ET by 60 ft'ing better but HP calcs don't ask for gear. they just ask for HP and weight and since this car in question doesn't MPH either I have to question whether gear is the obvious reason. If anything, a really effed up converter might be the problem

like Cab said, maybe the filter is the problem but at 9 lbs crossing the line, Could that really be the problem? Now, if 9lbs is to much and your flooding the engine, I would think if your dumping way to much fuel in the motor it could be washing the plugs clean but they would probably be dripping but would cause the engine to be way down on power.

taking it to a chassis dyno is something I would do. maybe your timing light is off from the one used on the dyno. are the secondaries opening? when you figure this out, i'm sure we would all love to hear the results




I'm sure his gauge says 9# but I will guarantee that
it isnt accurate otherwise it would be pouring past
the needle and seat... it could very well be too
small of a needle and seat but its the same stuff
that he ran on the dyno.... basically you used THEIR
ignition and THEIR fuel system so those are the places
I would look





The custom Gary Williams carb was used and was unaltered from the dyno testing . Definitely worth opening up again for another look though. I think I have to get the motor making power before questioning the converter at this point though.
Thanks !
chryco


Last edited by chryco; 10/18/12 01:43 AM.

Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
Re: Down on Power [Re: chryco] #1312248
10/18/12 10:08 AM
10/18/12 10:08 AM
Joined: Jan 2003
Posts: 1,990
, PA
sleepyhead416 Offline
top fuel
sleepyhead416  Offline
top fuel

Joined: Jan 2003
Posts: 1,990
, PA
What type of timing light are you using ? I was using a SNAP-ON adjustable on my car it was 8 degrees off!!!!

Re: Down on Power [Re: sleepyhead416] #1312249
10/18/12 06:31 PM
10/18/12 06:31 PM
Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
chryco Offline OP
super stock
chryco  Offline OP
super stock

Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
Quote:

What type of timing light are you using ? I was using a SNAP-ON adjustable on my car it was 8 degrees off!!!!




A very basic Suntune mag pick up one . I don`t care for the adjustable ones for that reason ! I`m locked in at 35 deg total just like on the dyno pull .





Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
Re: Down on Power [Re: chryco] #1312250
10/18/12 09:53 PM
10/18/12 09:53 PM
Joined: Jan 2003
Posts: 1,369
Ohio
3404 Offline
pro stock
3404  Offline
pro stock

Joined: Jan 2003
Posts: 1,369
Ohio
Considergetting a sportsman unit from Racepak.

Re: Down on Power [Re: 3404] #1312251
10/18/12 10:40 PM
10/18/12 10:40 PM
Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
chryco Offline OP
super stock
chryco  Offline OP
super stock

Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
Quote:

Considergetting a sportsman unit from Racepak.




Have you got a link for that ?
Thx


Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
Re: Down on Power [Re: chryco] #1312252
10/18/12 10:44 PM
10/18/12 10:44 PM
Joined: Dec 2009
Posts: 20,678
in a cattle trailer down by th...
G
Guitar Jones Offline
Paddle faster! I hear banjo music!
Guitar Jones  Offline
Paddle faster! I hear banjo music!
G

Joined: Dec 2009
Posts: 20,678
in a cattle trailer down by th...
Honestly I don't think it's a power problem from all you've posted, it's a chassis, gearing, converter problem.


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Down on Power [Re: sixpackgut] #1312253
10/18/12 10:50 PM
10/18/12 10:50 PM
Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
chryco Offline OP
super stock
chryco  Offline OP
super stock

Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
Quote:

I'm not sure about this and would like to know

Will gear effect MPH? I can see it effecting ET by 60 ft'ing better but HP calcs don't ask for gear. they just ask for HP and weight and since this car in question doesn't MPH either I have to question whether gear is the obvious reason. If anything, a really effed up converter might be the problem

like Cab said, maybe the filter is the problem but at 9 lbs crossing the line, Could that really be the problem? Now, if 9lbs is to much and your flooding the engine, I would think if your dumping way to much fuel in the motor it could be washing the plugs clean but they would probably be dripping but would cause the engine to be way down on power.

taking it to a chassis dyno is something I would do. maybe your timing light is off from the one used on the dyno. are the secondaries opening? when you figure this out, i'm sure we would all love to hear the results




Yup ! Definitely food for thought, I`m going to bench test the system by running it with and without the filter and accurately timing it filling a gallon container. The secondaries ARE going wide open too (dang ! ). It`s uncanny though how consistant this thing is . Always 139.4 MPH. Almost like a throttle stop ! Can`t wait to get this thing sorted .
Thanks !
chryco



Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
Re: Down on Power [Re: chryco] #1312254
10/18/12 11:12 PM
10/18/12 11:12 PM
Joined: Aug 2003
Posts: 43,309
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,309
Bend,OR USA
Try flow testing the system through the carb. bowls instead of directly out of the fuel lines. When I replaced the Magnfuel 275 pump with the Magnafuel 300 pump it flowed the same amount with the fuel lines(six pak, three lines) disconnected I called Magnafuel and they said that I was NOT testing the pump correctly, to restrict the flow with the same size as the needles and seat. I hooked up one fuel line and the fuel flow doubled


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Down on Power [Re: Cab_Burge] #1312255
10/20/12 01:38 PM
10/20/12 01:38 PM
Joined: Feb 2006
Posts: 698
Alberta Canada
E
Edge Offline
mopar
Edge  Offline
mopar
E

Joined: Feb 2006
Posts: 698
Alberta Canada
Still sounds like a converter issue to me. If the car is not spinning the 60 foot is a little lazy even for the MPH that you are running right now. WIth the glide my guess would be your shift recovery is pretty slow, Would be interesting to see a time slip to see how strong the car is pulling from 1000 to 1320 feet to get an idea of how much power the car is actually making. With out more data pretty tought to diagnose further but the combination (independant of the dyno numbers) under your conditions should see another 10 MPH and run closer to 8.90s (if the chassis is sorted out as well). Similiar to others experiences with my old car just a converter and some chassis tweaking netted a 5 tenths improvement. That was with a lower powered wedge combo going from 10.3 to 9.8 MPH increaseds 7 MPH. Went from an 8 inch converter to 9 inch and never looked back.


76 Duster work in progress
Re: Down on Power [Re: Edge] #1312256
10/20/12 01:39 PM
10/20/12 01:39 PM
Joined: Feb 2006
Posts: 698
Alberta Canada
E
Edge Offline
mopar
Edge  Offline
mopar
E

Joined: Feb 2006
Posts: 698
Alberta Canada
Great looking car by the way.


76 Duster work in progress
Re: Down on Power [Re: Edge] #1312257
10/20/12 06:14 PM
10/20/12 06:14 PM
Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
chryco Offline OP
super stock
chryco  Offline OP
super stock

Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
Quote:

Still sounds like a converter issue to me. If the car is not spinning the 60 foot is a little lazy even for the MPH that you are running right now. WIth the glide my guess would be your shift recovery is pretty slow, Would be interesting to see a time slip to see how strong the car is pulling from 1000 to 1320 feet to get an idea of how much power the car is actually making. With out more data pretty tought to diagnose further but the combination (independant of the dyno numbers) under your conditions should see another 10 MPH and run closer to 8.90s (if the chassis is sorted out as well). Similiar to others experiences with my old car just a converter and some chassis tweaking netted a 5 tenths improvement. That was with a lower powered wedge combo going from 10.3 to 9.8 MPH increaseds 7 MPH. Went from an 8 inch converter to 9 inch and never looked back.




I HAVE to find those time slips ! I put them somewhere for safe keeping !!!!!!!!
I will post them when I get my hands on them !!!
chryco
P.S Thanks !

Last edited by chryco; 10/20/12 06:14 PM.

Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
Page 3 of 4 1 2 3 4






Powered by UBB.threads™ PHP Forum Software 7.7.1