ls1 what fuel pump
11-17-2008, 08:56 AM
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ls1 what fuel pump Hey guys i recently decided to go back to fuel injection and iam at the point where i need to get the fuel system hooked up. But dont know what fuel pump to use will i have to use a tank and pump out of an f body all the external pumps i found dont pump past 45 psi and i read that the ls1 needs at least 58psi. I dont know which way to go any help. Thanks
11-17-2008, 09:37 AM
#2
That is almost correct, 53-58 is the require pressure per GM Swap guide. But you are better off trying to stay as close as possible to 58 psi or more if you start mod'ing.
No you don't have to use a Intank pump, but you need to reseach the pro and con of both internal and external tanks. External are noise and sometime don't have a very long life. Internal are cooled by being submerged in the fuel and keep cool and will last long as any OEM setup. Noise is blocked by being submerged in the fuel in in the tank.
Another question you should be asking if going internal, is what Fuel Tank or which way to mod the tank.
a) There are Aftermarket tanks that have internal pumps all ready added, some will run up to $1200.00. Search on A-Body tank, there is a aftermarket replacement w/intank pump for a few hundred dollars. There is a Thread on it.
b) Many have also used the Tank.INC intank setup.
c) Some will sump there current tank with a Competition Engineering Sump and use a external pump.
d) If your doing your A-Body, a B-Body Impala/Buick (94-96) tank can be swapped in.
No you don't have to use a Intank pump, but you need to reseach the pro and con of both internal and external tanks. External are noise and sometime don't have a very long life. Internal are cooled by being submerged in the fuel and keep cool and will last long as any OEM setup. Noise is blocked by being submerged in the fuel in in the tank.
Another question you should be asking if going internal, is what Fuel Tank or which way to mod the tank.
a) There are Aftermarket tanks that have internal pumps all ready added, some will run up to $1200.00. Search on A-Body tank, there is a aftermarket replacement w/intank pump for a few hundred dollars. There is a Thread on it.
b) Many have also used the Tank.INC intank setup.
c) Some will sump there current tank with a Competition Engineering Sump and use a external pump.
d) If your doing your A-Body, a B-Body Impala/Buick (94-96) tank can be swapped in.
11-17-2008, 09:57 AM
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You can sump your stock tank
http://competitionengineering.carsho..._id/62723/4041
Then do a inline pump
http://cgi.ebay.com/ebaymotors/Walbr...Q5fAccessories
Then a regulator
http://aeromotive.carshopinc.com/pro..._id/3257/13101
Just a few options...
http://competitionengineering.carsho..._id/62723/4041
Then do a inline pump
http://cgi.ebay.com/ebaymotors/Walbr...Q5fAccessories
Then a regulator
http://aeromotive.carshopinc.com/pro..._id/3257/13101
Just a few options...
11-19-2008, 03:10 PM
#4
Fuel pumps. In my turbo powered v6 Buick I run a Barry Grant King Sumo. Its an external pump but is very, very quiet. The pump will handle anything an LS1 can throw at it. If I ever get my 67 GTO (LS1 powered) running it will be with my back up King Sumo.
