Carb/Nitrous guys come on in!

ShawnBoyMoody · 08-21-2011, 11:44 AM

So my Holley blue fuel pump is failing on me (bad brushes worn commutator) and I need to replace it. The blue has always been sufficient up till now at keeping the carb fed with fuel. My question is will a Holley Black keep me fed with the new 331 I'm building? The plan is to ditch the super powershot NOS system I have now and get a big shot and shoot 200 through a progressive controller eventually. Will the black supply the fuel? I have -8 lines from the pickup to the regulator and -6 from the reg. to the carb. Thanks in advance.

WWhittle · 08-21-2011, 11:58 AM

I would run either a bigger pump or two pumps

cliff-1972 · 08-21-2011, 12:08 PM

You can always up the pressure on a blue pump with a spring kit if the pressure is what is falling off.I have Aeromotive A1000 just sitting on the shelf that has -10's in/out.It needs to be sent to Aeromotive to be freshened up.Other than that it is fine.

ShawnBoyMoody · 08-21-2011, 12:08 PM

Quote:

Originally Posted by WWhittle

I would run either a bigger pump or two pumps

What are you running?

ShawnBoyMoody · 08-21-2011, 12:10 PM

Quote:

Originally Posted by cliff-1972

You can always up the pressure on a blue pump with a spring kit if the pressure is what is falling off.I have Aeromotive A1000 just sitting on the shelf that has -10's in/out.It needs to be sent to Aeromotive to be freshened up.Other than that it is fine.

Yeah I never ever lose pressure at WOT. Its now just a matter of the pump not starting if I shut it off, and having to rap on it to get it started or take it apart and spin the shaft manually and itll go.

ShawnBoyMoody · 08-21-2011, 12:12 PM

I currently run a 6.5 lbs of pressure.

Bradleyrj · 08-21-2011, 12:13 PM

New black for the regular fuel system and a small fuel cell and Blue for the nitrous supply. I never believe in pulling nitrous fuel supply off of the normal system. Just my opinion.

1998ta__1991rs · 08-21-2011, 12:14 PM

are you running a standalone cell for the nitrous? with a bigger shot it would probably be a good idea, always a good idea to flow it every time you go to the track

ShawnBoyMoody · 08-21-2011, 12:20 PM

Quote:

Originally Posted by 1998ta__1991rs

are you running a standalone cell for the nitrous? with a bigger shot it would probably be a good idea, always a good idea to flow it every time you go to the track

Quote:

Originally Posted by Bradleyrj

New black for the regular fuel system and a small fuel cell and Blue for the nitrous supply. I never believe in pulling nitrous fuel supply off of the normal system. Just my opinion.

You may be right. What worries me is when guys run one grade of fuel for the carb and a higher grade for the nitrous sys. Seems sketchy to me, I'd be worried about the lower grade fuel detonating??

ShawnBoyMoody · 08-21-2011, 12:21 PM

More money More money lol

05Saleen · 08-21-2011, 12:48 PM

I alway's ran a Holley Black with nitrous on my big block. Never had a problem running a 275 shot.

bwelch · 08-21-2011, 01:02 PM

rebuild the blue for the motor. Its like $15 for a rebuild kit. You can get a jegs brand black pump"holley black" for $97. Jegs has a 1 gallon cell for $120.

WWhittle · 08-21-2011, 01:30 PM

Quote:

Originally Posted by ShawnBoyMoody

What are you running?

One pump, fuel log with separate regs.

Bradleyrj · 08-21-2011, 02:44 PM

Quote:

Originally Posted by ShawnBoyMoody

You may be right. What worries me is when guys run one grade of fuel for the carb and a higher grade for the nitrous sys. Seems sketchy to me, I'd be worried about the lower grade fuel detonating??

Just run 93 in the car tank and you'll be fine.

WWhittle · 08-21-2011, 03:16 PM

Quote:

Originally Posted by Bradleyrj

New black for the regular fuel system and a small fuel cell and Blue for the nitrous supply. I never believe in pulling nitrous fuel supply off of the normal system. Just my opinion.

Why?

BigdaddyDupree · 08-21-2011, 03:38 PM

Quote:

Originally Posted by Bradleyrj

Just run 93 in the car tank and you'll be fine.

You ever had anything with nitrous?

Kwiksilver · 08-21-2011, 03:42 PM

here we go...

WWhittle · 08-21-2011, 03:45 PM

I think the separate pump, seperate tank deal is more for street cars with stock in tank pumps, stock everything else- mainly efi cars with multiple tunes. Even then, I don't care for it. All Shawn needs is a good pump and a couple $30 Holley regs.

WWhittle · 08-21-2011, 03:49 PM

If 900" motors with 5 systems can run off one pump and one log, I have a feeling Shawn would be fine.

1iron · 08-21-2011, 03:53 PM

Quote:

Originally Posted by WWhittle

I think the separate pump, seperate tank deal is more for street cars with stock in tank pumps, stock everything else- mainly efi cars with multiple tunes. Even then, I don't care for it. All Shawn needs is a good pump and a couple $30 Holley regs.

^^^^^^See there. Skreet car. Running a plate kit on EFI fuel pressure is PITA. Been there done that.

08-21-2011, 11:44 AM	#1
ShawnBoyMoody Senior Member Join Date: Aug 2009 Location: In the lab.... Posts: 8,159	Carb/Nitrous guys come on in! So my Holley blue fuel pump is failing on me (bad brushes worn commutator) and I need to replace it. The blue has always been sufficient up till now at keeping the carb fed with fuel. My question is will a Holley Black keep me fed with the new 331 I'm building? The plan is to ditch the super powershot NOS system I have now and get a big shot and shoot 200 through a progressive controller eventually. Will the black supply the fuel? I have -8 lines from the pickup to the regulator and -6 from the reg. to the carb. Thanks in advance. __________________ The Krusty Koupe "Luck favors the oblivious, and boy am I lucky!"

08-21-2011, 12:08 PM	#3
cliff-1972 Senior Member Join Date: Feb 2011 Location: Moncks Corner,S.C Posts: 292	You can always up the pressure on a blue pump with a spring kit if the pressure is what is falling off.I have Aeromotive A1000 just sitting on the shelf that has -10's in/out.It needs to be sent to Aeromotive to be freshened up.Other than that it is fine. __________________ 1964 Impala 468BBC,T350 transbrake,4.30 9",10 point and 10.5 M/T's 1996 F250 4X4 12V Cummins,compound turbo 63mm over 75mm,cam,520cc pump,full billet 4R100 563hp&936ft.lbs w/a bad fuel pump and on a dynojet...just an old hunting truck

08-21-2011, 12:12 PM	#6
ShawnBoyMoody Senior Member Join Date: Aug 2009 Location: In the lab.... Posts: 8,159	I currently run a 6.5 lbs of pressure. __________________ The Krusty Koupe "Luck favors the oblivious, and boy am I lucky!"

08-21-2011, 12:13 PM	#7
Bradleyrj Senior Member Join Date: May 2008 Location: Myrtle Beach Posts: 2,347	New black for the regular fuel system and a small fuel cell and Blue for the nitrous supply. I never believe in pulling nitrous fuel supply off of the normal system. Just my opinion. __________________

08-21-2011, 12:14 PM	#8
1998ta__1991rs Senior Member Join Date: Jun 2008 Location: West Ash Posts: 4,283	are you running a standalone cell for the nitrous? with a bigger shot it would probably be a good idea, always a good idea to flow it every time you go to the track __________________ Funny

08-21-2011, 11:58 AM	#2
WWhittle Senior Member Join Date: Apr 2008 Location: Mt. Pleasant, SC Posts: 3,899	I would run either a bigger pump or two pumps

08-21-2011, 12:21 PM	#10
ShawnBoyMoody Senior Member Join Date: Aug 2009 Location: In the lab.... Posts: 8,159	More money More money lol __________________ The Krusty Koupe "Luck favors the oblivious, and boy am I lucky!"

08-21-2011, 12:48 PM	#11
05Saleen Senior Member Join Date: Dec 2006 Location: Goose Creek, SC Posts: 3,159	I alway's ran a Holley Black with nitrous on my big block. Never had a problem running a 275 shot. __________________ 05 Saleen, 91 Mustang LX, 99 Lightning

08-21-2011, 01:02 PM	#12
bwelch Senior Member Join Date: Aug 2009 Posts: 3,774	rebuild the blue for the motor. Its like $15 for a rebuild kit. You can get a jegs brand black pump"holley black" for $97. Jegs has a 1 gallon cell for $120. __________________

08-21-2011, 03:42 PM	#17
Kwiksilver Senior Member Join Date: Mar 2011 Posts: 475	here we go... __________________ 66 ford f100 shoptruck. 351 cleveland 4v, CJ heads, holley 750, toploader 4spd, rust.

08-21-2011, 03:45 PM	#18
WWhittle Senior Member Join Date: Apr 2008 Location: Mt. Pleasant, SC Posts: 3,899	I think the separate pump, seperate tank deal is more for street cars with stock in tank pumps, stock everything else- mainly efi cars with multiple tunes. Even then, I don't care for it. All Shawn needs is a good pump and a couple $30 Holley regs.

08-21-2011, 03:49 PM	#19
WWhittle Senior Member Join Date: Apr 2008 Location: Mt. Pleasant, SC Posts: 3,899	If 900" motors with 5 systems can run off one pump and one log, I have a feeling Shawn would be fine.