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Author
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Topic: How much Lph for a fuel pump?
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DropTopFox
drama
Member # 1689
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posted
 
 
My final setup should have about 450 horse although I am nowhere near that now and I probably won't buy the fuel pump for a while either I just wanted to know how many lph I should use on the setup. I plan on running a Kirban fuel pressure regulator and a Walbro fuel pump. How many lph would satisfy a setup with 450 horse?
Thanks
Ryan ![[patriot]](graemlins/patriot.gif)
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Go out and do something for yourself today everyone, quit depending on others
-Me
http://www.CaliforniaFords.com/cgi-bin/album.pl?album=00001689
Posts: 4003 | From: San Bruno | Registered: Aug 2002
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BlackNGold
CaliforniaFords.com
Moderator
Member # 655
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posted
At least a 255LPH.
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-SLOWER TRAFFIC KEEP RIGHT-
Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001
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hidnn.o.s.
¯
Member # 1219
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posted
quote:
Originally posted by Black94 5.0:
At least a 255LPH.
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R.I.P. Willie G. You are missed on this forum
Posts: 15950 | Registered: Apr 2002
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Bill/APEX Motorsports
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Member # 636
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posted
A 255lph in-tank pump should do the trick, although it's always safer to have too much fuel than not enough. (Whatever fuel the engine doesn't use will go back to the tank via the fuel return line.) It wouldn't hurt to add, say, a Vortech T-Rex external pump to aid in fuel delivery when the nitrous kicks in.
The real test will be on the dyno, when you're monitoring the air/fuel ratio. I recommend starting with a smaller shot of nitrous, then working your way up until you start running lean. At that point, you know you don't have enough fuel delivery and can install the next-size-smaller jets.
I keep 255lph in-tank pumps and T-Rexes in stock. Let me know if I can be of any further assistance.
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Bill Kaiser
APEX Motorsports
Santa Clara
www.apexmotorsports.com
408-562-1000
bill@apexmotorsports.com
Posts: 488 | From: Santa Clara, CA | Registered: Dec 2001
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DropTopFox
drama
Member # 1689
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posted
Thanks for the advice Bill and I think I'll stick with the hundo shot. But when I get evrything set up finally I'll definately bring it in and have a dyno test abnd tune to make sure I get the most from my final combo.
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Go out and do something for yourself today everyone, quit depending on others
-Me
http://www.CaliforniaFords.com/cgi-bin/album.pl?album=00001689
Posts: 4003 | From: San Bruno | Registered: Aug 2002
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Jeff S
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Member # 371
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posted
PseudoCobra,
450rwhp or flywheel HP? Also are you running a wet kit or a dry kit? The Walbro GSL-392 is MUCH better pump than a T-rex if you do indeed need a inline pump.
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'90 Mustang LX: 8.53 @ 157.92 w/ 1.33 60' on DR's
'10 ZR1: FOR SALE
'14 E63 S: RENNtech ECU
'04 Gallardo: UGR TTG
Posts: 2121 | From: San Jose, CA | Registered: Aug 2001
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DropTopFox
drama
Member # 1689
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posted
450 rear wheel hopefully. I'm running a dry kit but my final combo is going to have the Noszle kit with a 125 shot. I think this is what you are asking Jeff.
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Go out and do something for yourself today everyone, quit depending on others
-Me
http://www.CaliforniaFords.com/cgi-bin/album.pl?album=00001689
Posts: 4003 | From: San Bruno | Registered: Aug 2002
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