fuel pump blower motor
#1
Registered
Thread Starter
Join Date: Sep 2009
Location: shoreacres,tx
Posts: 109
Likes: 0
Received 0 Likes
on
0 Posts
fuel pump blower motor
Good afternoon, I'm building a 406 sbc with weiand 177 with 850 BG carb. would fuel delivery be sufficient with a block mounted mech fuel pump so as to avoid all the extra plumbing with elec.pump regulator etc.? I already have a 1/2" pickup tube,hi flow filter, #8 line to pump. boost should be approx. 6psi. thanks for any info
#2
Registered
Merc used mechanical pumps on ALL their carbed blower motors up to 1000hp. There are quite a few aftermarket marine pumps with even greater capacity than Mercs SBC pumps.
#3
Registered
Thread Starter
Join Date: Sep 2009
Location: shoreacres,tx
Posts: 109
Likes: 0
Received 0 Likes
on
0 Posts
Thanks for the info, it seems like a lot of people build some pretty elaborite fuel systems. seems like a bit of overkill. I prefer simplicity. not mention current draw extra switches etc.
#4
Registered
No problem to supply it with just a mech. pump. However, I would run a -10 line from the tank, through the filter/seperator, and into the mech. pump. You can then run either a -8 or -10 up to the carb. Holley makes a nice mech. pump that moves about 120 gph at 7-8 psi. Edelbrock also has a similar one. Good luck.
Eddie
Eddie
#5
Registered
iTrader: (2)
Join Date: Aug 2005
Location: Between A Womans Leggs in IL
Posts: 6,306
Likes: 0
Received 1 Like
on
1 Post
Heres a kickazz pump if your worried about fuel pressure
http://www.racepumps.com/FuelPumps-Marine.html
same pump but cheeper!
http://performanceparts.com/part.php?partID=373757
make sure you run a boost referance regulator,theirs a hose that goes to regulator to the intake manifold so when the boost comes in it will bump up the fuel pressure..
http://www.racepumps.com/FuelPumps-Marine.html
same pump but cheeper!
http://performanceparts.com/part.php?partID=373757
make sure you run a boost referance regulator,theirs a hose that goes to regulator to the intake manifold so when the boost comes in it will bump up the fuel pressure..
Last edited by FIXX; 01-29-2010 at 08:30 PM.
#6
Registered
#7
Registered
iTrader: (2)
Join Date: Aug 2005
Location: Between A Womans Leggs in IL
Posts: 6,306
Likes: 0
Received 1 Like
on
1 Post
Fixx
i guess you never had a blower bang or pop because of low fuel pressure or because your float bowls run out of fuel ??
I know where the carb goes on a 177 as well as a procharger... fuel pressure is the key to a blower motor,run them lein then all sots of **** happens..i would rather have to much then not enough!!
I know where the carb goes on a 177 as well as a procharger... fuel pressure is the key to a blower motor,run them lein then all sots of **** happens..i would rather have to much then not enough!!
#8
Registered
Good afternoon, I'm building a 406 sbc with weiand 177 with 850 BG carb. would fuel delivery be sufficient with a block mounted mech fuel pump so as to avoid all the extra plumbing with elec.pump regulator etc.? I already have a 1/2" pickup tube,hi flow filter, #8 line to pump. boost should be approx. 6psi. thanks for any info
#9
I ran the stock fuel pump feeding my 1050 Dominator/250 blower and never had any drop of pressure. My lines were all upped to larger, from the gas tank to the carb, including the seperator. The fuel pump is rebuildable, so you can install the valve body section that has the larger ports.
That said, I don't know how much fuel you will need with the 850. A fuel press gauge (recommended) will dictate if what you have is fine or in need of upgrading.
That said, I don't know how much fuel you will need with the 850. A fuel press gauge (recommended) will dictate if what you have is fine or in need of upgrading.
__________________
Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.
Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.
#10
Registered
iTrader: (1)
No problem to supply it with just a mech. pump. However, I would run a -10 line from the tank, through the filter/seperator, and into the mech. pump. You can then run either a -8 or -10 up to the carb. Holley makes a nice mech. pump that moves about 120 gph at 7-8 psi. Edelbrock also has a similar one. Good luck.
Eddie
Eddie