in tank fuel pump

stang_racer20 · 09-30-2003, 03:04 AM

im ordering a new in tank pump for my stang. its a bbk 255 lph, has anyone else changed out thier stock in tank pump? how hard/easy is it?

Dark_5.0 · 09-30-2003, 09:28 AM

Are you running dished pistons and 42 # injectors on an all motor 347 stroker?

The pump is easy to change. Removal of 2 bolts will drop the tank and its easy money from there

stang_racer20 · 09-30-2003, 12:20 PM

Quote:

Originally posted by Dark_5.0
Are you running dished pistons and 42 # injectors on an all motor 347 stroker?

The pump is easy to change. Removal of 2 bolts will drop the tank and its easy money from there

until i can get the money for a custom twin turbo setup.

Dark_5.0 · 09-30-2003, 12:49 PM

Oh I see, makes since now.

Fuel pump is easy, 1-2 hours at most.

stang_racer20 · 09-30-2003, 12:58 PM

yea i know its pretty low compression im running on the street but it wont be for all that long

DemonGT · 10-04-2003, 04:48 AM

theres a rubber peice that goes into the tank where the filler neck goes in...might be a good idea to replace this while the tank is out or at least make note of its condition...i was just changing out my pump yesturday and mine was riped and i had to order one from the ford dealer

84LX89GT · 10-09-2003, 01:17 AM

I put in a BBK 255 LPH pump and what they don't mention is that the pump flows SOOOO much that you have to upgrade your fuel lines.
Before install, fuel pressure set at 35 psi with my adjustable fuel pressure regulator at idle.
After install fuel pressure was at 85 psi. i removed the return line and ran a line to a bucket and pressure dropped to 35 psi. I reconnected the return line at the fuel rail and disconnected at the pickup and ran it into a bucket.....still 85 psi. No kinks in the lines and nothing restricting except for the diameter of the line.

So my next mod will be bigger fuel rail, AN steel braided fuel lines and a new fuel tank pickup (somewhere in the $400+ dollar range

)
I would probably go no bigger than 190 lph unless you really need it.

Mustang_289 · 10-09-2003, 04:05 PM

Pretty easy to change, I would suggest running the gas out of the tank first. It can get pretty heavy with gas in it. Gas weighs something like 7lbs / gallon.

stang_racer20 · 10-10-2003, 02:27 AM

oh sorry i didnt post guys, ive been done with it for like 2 days now. i went pretty well except that the tank straps really didnt wanna go back on.

10-10-2003, 02:25 PM

Right on. So is your fuel pressure way up to 85psi. like 84LX89GT was saying? I've heard of many people running the 255lph intank pumps without having to upgrade their fuel lines??

stang_racer20 · 10-10-2003, 03:34 PM

actually i only started it up to make sure it worked, so i didnt check the fuel pressure yet. i originally had it set at like 52 psi, so i'll see what it says later and post back tomorrow.

jonnyk · 10-10-2003, 09:38 PM

My pressure wasn't like that...through the roof, when I did my Walbro 255...
Hopefully it runs good for you!

09-30-2003, 03:04 AM	#1
stang_racer20 Registered Member Join Date: Jun 2003 Location: Wisconsin Posts: 348	in tank fuel pump im ordering a new in tank pump for my stang. its a bbk 255 lph, has anyone else changed out thier stock in tank pump? how hard/easy is it? __________________ 92 Mustang GT, 347 Stroker(Forged Steel Crank/Rods-Balanced, Forged Aluminum Dished Pistons), Trick Flow Track Heat Intake, Trick Flow Twisted Wedge Heads w/ Stage 3 port/polish, 80mm C&L MAF, FMS 30# Inj., BBK AFPR, Trick Flow Stage 2 Cam, Trick Flow 1.6R Rockers, BBK E.L. Headers, Flowmaster Cat-Back, MAC CAI, FMS Pulleys, Griffin Alum. Radiator, MSD Pro-Billet Distributor; AOD, Dynamic 3300 Lockup Converter, B & M Super Cooler, B&M Ratchet Shifter; 3:73 gears.

09-30-2003, 09:28 AM	#2
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Are you running dished pistons and 42 # injectors on an all motor 347 stroker? The pump is easy to change. Removal of 2 bolts will drop the tank and its easy money from there __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

09-30-2003, 12:49 PM	#4
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Oh I see, makes since now. Fuel pump is easy, 1-2 hours at most. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

09-30-2003, 12:58 PM	#5
stang_racer20 Registered Member Join Date: Jun 2003 Location: Wisconsin Posts: 348	yea i know its pretty low compression im running on the street but it wont be for all that long __________________ 92 Mustang GT, 347 Stroker(Forged Steel Crank/Rods-Balanced, Forged Aluminum Dished Pistons), Trick Flow Track Heat Intake, Trick Flow Twisted Wedge Heads w/ Stage 3 port/polish, 80mm C&L MAF, FMS 30# Inj., BBK AFPR, Trick Flow Stage 2 Cam, Trick Flow 1.6R Rockers, BBK E.L. Headers, Flowmaster Cat-Back, MAC CAI, FMS Pulleys, Griffin Alum. Radiator, MSD Pro-Billet Distributor; AOD, Dynamic 3300 Lockup Converter, B & M Super Cooler, B&M Ratchet Shifter; 3:73 gears.

10-04-2003, 04:48 AM	#6
DemonGT Registered Member Join Date: Aug 2000 Location: Wisconsin Posts: 879	theres a rubber peice that goes into the tank where the filler neck goes in...might be a good idea to replace this while the tank is out or at least make note of its condition...i was just changing out my pump yesturday and mine was riped and i had to order one from the ford dealer __________________ '91 GT,410W,10.5 to 1 comp,Victor Jr. heads,Victor 5.8 intake,FTI cam,Crane retro fit lifters,Scorpian 1.6 RR's,Melling HV oil pump,MSD distro.,Canton oil pan,FMS flywheel,Romac balancer,FMS timing chain,Accufab 90mm TB,C&L 76mm maf, 42lbers,HD clutch,K&N air filter,Mac long tubes,Pro dumps,powerchamber,FMS 9mm wires,180 thermostat,Ford Racing gauges,5inch Tach,centerline convo pro's,nitto DR's,Pro3i lower control arms,50/50 shocks,3.55 gears,TFS HD diff. cover Next year: Tremec TKO,Spec stage 3 clutch,alum driveshaft,complete fuel system www.angelfire.com/linux/demondan

10-09-2003, 01:17 AM	#7
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	I put in a BBK 255 LPH pump and what they don't mention is that the pump flows SOOOO much that you have to upgrade your fuel lines. Before install, fuel pressure set at 35 psi with my adjustable fuel pressure regulator at idle. After install fuel pressure was at 85 psi. i removed the return line and ran a line to a bucket and pressure dropped to 35 psi. I reconnected the return line at the fuel rail and disconnected at the pickup and ran it into a bucket.....still 85 psi. No kinks in the lines and nothing restricting except for the diameter of the line. So my next mod will be bigger fuel rail, AN steel braided fuel lines and a new fuel tank pickup (somewhere in the $400+ dollar range ) I would probably go no bigger than 190 lph unless you really need it. __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

10-09-2003, 04:05 PM	#8
Mustang_289 Registered Member Join Date: Sep 2001 Posts: 512	Pretty easy to change, I would suggest running the gas out of the tank first. It can get pretty heavy with gas in it. Gas weighs something like 7lbs / gallon.

10-10-2003, 02:27 AM	#9
stang_racer20 Registered Member Join Date: Jun 2003 Location: Wisconsin Posts: 348	oh sorry i didnt post guys, ive been done with it for like 2 days now. i went pretty well except that the tank straps really didnt wanna go back on. __________________ 92 Mustang GT, 347 Stroker(Forged Steel Crank/Rods-Balanced, Forged Aluminum Dished Pistons), Trick Flow Track Heat Intake, Trick Flow Twisted Wedge Heads w/ Stage 3 port/polish, 80mm C&L MAF, FMS 30# Inj., BBK AFPR, Trick Flow Stage 2 Cam, Trick Flow 1.6R Rockers, BBK E.L. Headers, Flowmaster Cat-Back, MAC CAI, FMS Pulleys, Griffin Alum. Radiator, MSD Pro-Billet Distributor; AOD, Dynamic 3300 Lockup Converter, B & M Super Cooler, B&M Ratchet Shifter; 3:73 gears.

10-10-2003, 02:25 PM	#10
Simi Stang Guest Posts: n/a	fuel pressure Right on. So is your fuel pressure way up to 85psi. like 84LX89GT was saying? I've heard of many people running the 255lph intank pumps without having to upgrade their fuel lines??

10-10-2003, 03:34 PM	#11
stang_racer20 Registered Member Join Date: Jun 2003 Location: Wisconsin Posts: 348	actually i only started it up to make sure it worked, so i didnt check the fuel pressure yet. i originally had it set at like 52 psi, so i'll see what it says later and post back tomorrow. __________________ 92 Mustang GT, 347 Stroker(Forged Steel Crank/Rods-Balanced, Forged Aluminum Dished Pistons), Trick Flow Track Heat Intake, Trick Flow Twisted Wedge Heads w/ Stage 3 port/polish, 80mm C&L MAF, FMS 30# Inj., BBK AFPR, Trick Flow Stage 2 Cam, Trick Flow 1.6R Rockers, BBK E.L. Headers, Flowmaster Cat-Back, MAC CAI, FMS Pulleys, Griffin Alum. Radiator, MSD Pro-Billet Distributor; AOD, Dynamic 3300 Lockup Converter, B & M Super Cooler, B&M Ratchet Shifter; 3:73 gears.

10-10-2003, 09:38 PM	#12
jonnyk Being stroked is great Join Date: Oct 1998 Location: Alberta, Canada Posts: 772	My pressure wasn't like that...through the roof, when I did my Walbro 255... Hopefully it runs good for you! __________________ Novi 2000 now spinning off the snout of the 331... Mods Pics

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