Fuel system help needed... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

n737nc · 07-18-2004, 11:40 AM

I am considering converting my fuel system over to electric.
I am totaly clueless, as all I have ever had has been mechanical.

Will this kit from Summit Racing work on a 72 pickup with a 350 pulling about 400hp?

http://store.summitracing.com/defaul...=sum-pumpkit7a

Thanks,
Nick

sam's 72 · 07-18-2004, 12:16 PM

Yes, that will work. It is a little over kill in my opinion. I went with a mechanical fuel pump on my 383. It is the highest flowing pump holley offers with out haveing to use a regulator. Have not ran my truck yet. But it should be enough to feed my 383. It is going to be around 450 HP.
Sam

cdowns · 07-18-2004, 12:45 PM

i don't see any advantage of useing an electric pump at close to $300 over a good mechanical pump at$50

Bowtie67 · 07-18-2004, 01:13 PM

I agree with cdowns on this, an electric is way over kill not to mention the extra noise your gonna have to live with. Most Good mechanical fuel pumps will work fine even for off road use and some serious HP.

http://store.summitracing.com/defaul...-327&x=13&y=10

**smitty62** · 07-18-2004, 01:36 PM

Nascar uses stock design mechanical fuel pump for 800+ horsepower.

n737nc · 07-18-2004, 02:03 PM

Well then

I guess I will go with the mechanical fuel pump. But, I would still like to change over to the braded fuel lines.
Can anyone tell me what size the fitting are to the tank?

Thanks,
Nick

sam's 72 · 07-18-2004, 03:24 PM

I tell you what I did. I used the factory fuel line from tank to pump. Then from pump to carb I used Areoquip socketless hose and fittings, I mounted a fuel block to pasanger side front fender well, came off of fuel block with two line over the top of valve covers to carb. I have a 750 holley HP series carb.

sam's 72 · 07-18-2004, 03:25 PM

the fuel line I used is an -6 , forgot to add that in my last post

n737nc · 07-18-2004, 03:32 PM

Well, the main reason that I am needing to rebuild my fuel sytem is because there are rubber lines from the tank to the pump. They are not looking so good, and I would feel much better with a quality line replacing them.

I was hoping that someone on here has done this before, and would know the correct size fittings that I would need. I have to take my seat completly out to get to the fuel lines from the tank to find out what size they are.

Thanks for your help,
Nick

cableguy0 · 07-18-2004, 03:37 PM

your not going to be able to replace all the lines from the tank with braided they are steel lines coming off of the tank under the truck it switches to rubber then goes back to steel line along the frame rail

n737nc · 07-18-2004, 03:42 PM

So, would I just use a clamp to connect the braded line to the steel line?
That doesn't seem like a real clean way to do it.

Nick

Tx Firefighter · 07-18-2004, 08:29 PM

Buy a long stick of line and bend it up yourself. Connect the pieces with short sections of rubber line.

6 cylinder and 307 trucks used 5/16, the rest used 3/8.

cableguy0 · 07-18-2004, 08:30 PM

you cant clamp braided line it wont seal its too stiff you have to use an fittings

07-18-2004, 11:40 AM	#1
n737nc Registered User Join Date: Jun 2004 Location: Dallas, Tx Posts: 207	Fuel system help needed... I am considering converting my fuel system over to electric. I am totaly clueless, as all I have ever had has been mechanical. Will this kit from Summit Racing work on a 72 pickup with a 350 pulling about 400hp? http://store.summitracing.com/defaul...=sum-pumpkit7a Thanks, Nick

07-18-2004, 12:16 PM	#2
sam's 72 Senior Member Join Date: Nov 2001 Location: Pasadena, Texas, USA Posts: 1,005	Yes, that will work. It is a little over kill in my opinion. I went with a mechanical fuel pump on my 383. It is the highest flowing pump holley offers with out haveing to use a regulator. Have not ran my truck yet. But it should be enough to feed my 383. It is going to be around 450 HP. Sam __________________ 72 LWB chevy truck. Pasadena, Texas

07-18-2004, 12:45 PM	#3
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	i don't see any advantage of useing an electric pump at close to $300 over a good mechanical pump at$50 __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

07-18-2004, 01:13 PM	#4
Bowtie67 Registered User Join Date: Jan 2004 Location: NH Posts: 2,266	I agree with cdowns on this, an electric is way over kill not to mention the extra noise your gonna have to live with. Most Good mechanical fuel pumps will work fine even for off road use and some serious HP. http://store.summitracing.com/defaul...-327&x=13&y=10 __________________ 1967 C10 - SWBSS Pro Street 427sbc, 700R4 & 4.10 Gears 1948 Chevy FleetMaster Coupe, LS1, (almost done) 1950 Chevy StyleLine Coupe 250/6 3x2 Dueces 2009 Toyota Tundra 1996 Harley RoadKing "I maybe getting old, but I can still burn rubber with the best of them"

07-18-2004, 01:36 PM	#5
smitty62 Registered User Join Date: May 2002 Location: North Carolina Posts: 1,234	Nascar uses stock design mechanical fuel pump for 800+ horsepower. __________________ Stepsides look like real trucks! Smitty

07-18-2004, 02:03 PM	#6
n737nc Registered User Join Date: Jun 2004 Location: Dallas, Tx Posts: 207	Well then I guess I will go with the mechanical fuel pump. But, I would still like to change over to the braded fuel lines. Can anyone tell me what size the fitting are to the tank? Thanks, Nick

07-18-2004, 03:24 PM	#7
sam's 72 Senior Member Join Date: Nov 2001 Location: Pasadena, Texas, USA Posts: 1,005	I tell you what I did. I used the factory fuel line from tank to pump. Then from pump to carb I used Areoquip socketless hose and fittings, I mounted a fuel block to pasanger side front fender well, came off of fuel block with two line over the top of valve covers to carb. I have a 750 holley HP series carb. __________________ 72 LWB chevy truck. Pasadena, Texas

07-18-2004, 03:25 PM	#8
sam's 72 Senior Member Join Date: Nov 2001 Location: Pasadena, Texas, USA Posts: 1,005	the fuel line I used is an -6 , forgot to add that in my last post __________________ 72 LWB chevy truck. Pasadena, Texas

07-18-2004, 03:32 PM	#9
n737nc Registered User Join Date: Jun 2004 Location: Dallas, Tx Posts: 207	Well, the main reason that I am needing to rebuild my fuel sytem is because there are rubber lines from the tank to the pump. They are not looking so good, and I would feel much better with a quality line replacing them. I was hoping that someone on here has done this before, and would know the correct size fittings that I would need. I have to take my seat completly out to get to the fuel lines from the tank to find out what size they are. Thanks for your help, Nick

07-18-2004, 03:37 PM	#10
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,948	your not going to be able to replace all the lines from the tank with braided they are steel lines coming off of the tank under the truck it switches to rubber then goes back to steel line along the frame rail __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

07-18-2004, 03:42 PM	#11
n737nc Registered User Join Date: Jun 2004 Location: Dallas, Tx Posts: 207	So, would I just use a clamp to connect the braded line to the steel line? That doesn't seem like a real clean way to do it. Nick

07-18-2004, 08:29 PM	#12
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Buy a long stick of line and bend it up yourself. Connect the pieces with short sections of rubber line. 6 cylinder and 307 trucks used 5/16, the rest used 3/8. __________________ I'm on the Instagram- @Gearhead_Kevin

07-18-2004, 08:30 PM	#13
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,948	you cant clamp braided line it wont seal its too stiff you have to use an fittings __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.



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