Waking up the beast
- Thread starter bobtile
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What fuel pump is hummin back there?
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Congrats on the win Bobby
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Too bad no double up & Fuel Pump problems...
better luck next time
better luck next time
bobtile
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BG 400.
New and improved as of today.
bobtile
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Thanks Ron.
This year the goal was to make the car safe and drivable.
Thats done.
Now plan b is about to start.
Faster!!
Details soon
bobtile
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1 more race with Nendra this year.Too bad no double up & Fuel Pump problems...
better luck next time
Ill post up the trophy on Saturday.
Lmao
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Go get em' Bobby
bobtile
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So last Saturday at the Nendra race, I noticed that the Cuder was slowing down each run by .003 to .005. I won the race but figured something was going on.
Took the car to Island on sunday for a Nostalgia race.
Unloaded and everything seemed fine. Went up for my first timeshot and while doing the burnout, it stumbled in second gear. Shifted to third and it seemed fine.
I took off and about half track it sputtered so i shut it down.
Got back to the pits and noticed the fuel pump leaking. I had a rebuild kit with me, but it had the wrong shaft seal. Packed up and went home.
I had replaced the bearings earlier this year but that was it.
I ordered new seals and a rebuild kit and rebuilt the pump. (BG400)
Ran the car and it seamed fine and no leaks.
Went back to Island for test n tune this past Sunday.
Did the burnout and all was good. Took off and just past 60ft. It fell flat on its face.
Took the pump apart to try and clean it out and make another pass.
Back on the track and it did the same thing.
Loaded up and went home. Took the whole fuel system apart to see if i could find anything, but didn't see anything.
Just waiting now for one of the kids to get home so i can test the pump.
Going to pump into a one gallon can and time it.
The plan right now (if it flows ok) is to load it up and take it to Englistown for tnt tomorrow. If all goes well, ill continue down to Maryland for the Mopar race at Mir. on Saturday.
Took the car to Island on sunday for a Nostalgia race.
Unloaded and everything seemed fine. Went up for my first timeshot and while doing the burnout, it stumbled in second gear. Shifted to third and it seemed fine.
I took off and about half track it sputtered so i shut it down.
Got back to the pits and noticed the fuel pump leaking. I had a rebuild kit with me, but it had the wrong shaft seal. Packed up and went home.
I had replaced the bearings earlier this year but that was it.
I ordered new seals and a rebuild kit and rebuilt the pump. (BG400)
Ran the car and it seamed fine and no leaks.
Went back to Island for test n tune this past Sunday.
Did the burnout and all was good. Took off and just past 60ft. It fell flat on its face.
Took the pump apart to try and clean it out and make another pass.
Back on the track and it did the same thing.
Loaded up and went home. Took the whole fuel system apart to see if i could find anything, but didn't see anything.
Just waiting now for one of the kids to get home so i can test the pump.
Going to pump into a one gallon can and time it.
The plan right now (if it flows ok) is to load it up and take it to Englistown for tnt tomorrow. If all goes well, ill continue down to Maryland for the Mopar race at Mir. on Saturday.
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Did you feel or hear a miss? Or did it just fall over?
Me thinks it's time for a new pump,,,,
Me thinks it's time for a new pump,,,,
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Lets do a bit of simple math
400 gal/per hr advertised flow rate
{prob. with a -12 line unrestricted}
400 gals div. by 60 min.'s = should be 6.66 gal/per min.
so 20 seconds 1/3 of above, should be like = 2.22 gals
{in 1/3 of a min. = 20 sec.'s}
I never ran that pump so I don't know the "actual flow rates",
no doubt it would depend on line size too...
Was that without a regulator ?
seems to me 1 gal. in 20 seconds isn't all that good,
not for a performance build
How many gal.'s do you use on a typical pass ?
have you ever done a pass &
been towed to & from doing the pass ?
so you have a base line on what you use per run...
Anyway just curious...
400 gal/per hr advertised flow rate
{prob. with a -12 line unrestricted}
400 gals div. by 60 min.'s = should be 6.66 gal/per min.
so 20 seconds 1/3 of above, should be like = 2.22 gals
{in 1/3 of a min. = 20 sec.'s}
I never ran that pump so I don't know the "actual flow rates",
no doubt it would depend on line size too...
Was that without a regulator ?
seems to me 1 gal. in 20 seconds isn't all that good,
not for a performance build
How many gal.'s do you use on a typical pass ?
have you ever done a pass &
been towed to & from doing the pass ?
so you have a base line on what you use per run...
Anyway just curious...
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When you test that way it's a freeload flow test,might be different with the regulator.What regulator do you use?
bobtile
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Feeling it now.
Just laid down at the track.
bobtile
Well-Known Member
Tested after the regulator.
Never tested how much I actually use per run but its about a gallon. This is one example of the test that I did.
Going back out in the garage now and put the old "impeller " back in.
This seems to have started after I installed the "updated" one.
I also need to check the gauge on my pump. I have the pressure cranked all the way up now and its only showing 13lbs.
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Looks like your with-in that spec in the photo you listed,
just seems low to me...
I always run a by-pass style regulator too,
{probably overkill for most people}
that way you know you have the volume there when you need it
& not deadheading the pump, pump last longer & runs cooler,
fuel stays cooler etc., by-passing the excess beyond the 7+psi
the needles & seat can handle or when bowls are full,
really never dropping off in fuel pressure, flowing 7+psi,
of course unless the pump can't handle it...
just seems low to me...
I always run a by-pass style regulator too,
{probably overkill for most people}
that way you know you have the volume there when you need it
& not deadheading the pump, pump last longer & runs cooler,
fuel stays cooler etc., by-passing the excess beyond the 7+psi
the needles & seat can handle or when bowls are full,
really never dropping off in fuel pressure, flowing 7+psi,
of course unless the pump can't handle it...
Last edited:
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