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Fuel Delivery Questions

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Old Mar 29, 2001 | 09:15 AM
  #1  
FormulaJoe's Avatar
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Joined: Jul 1999
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From: Stillwater, Oklahoma, USA
Fuel Delivery Questions

1st I dont think my stock fuel pump will feed the Ram Jet 430 enough fuel. What size/brand pump should I get? I saw a 255LPH Holley for $159. Is that a good pump?

2nd I have been told that the stock 3/8in supply line is not large enough and that I need to run a new 1/2 in line. Can anyone verify this?

3rd Will 24 lb injectors feed the motor or do I need larger injectors? I was thinking of some SVO 30lb/hr injectors.

Anyone have any suggestions? THe motor is a 350 with fastburn heads, LT4 HOt cam, Ram Jet intake. Thanks, JOey

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L98, 3.27 9-bolt, Hooker shorty headers, custom 2.5inch Y-pipe, no cat, 3inch 2chamber flowmaster, JET AFPR, Ported MAF, Best ET: 13.86 @100mph. 1.99 60'
17 inch ROH "ZS" wheels. 17x8.5(front) and 17x9.5 (rear). Firestone Firehawk SZ50s. 245/45/zr17s and 275/40/zr17s. T56

On the way... Radar Blue 89 Formula, T56, Ram Jet 430, Ram Air, 17inch ROHs.
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Old Mar 29, 2001 | 11:53 AM
  #2  
TRAXION's Avatar
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Joined: Jul 1999
Posts: 2,844
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From: Maryland
Car: 2005 Subaru STI
Engine: 153ci of Turbo Power!
Transmission: 6-Speed
Your stock lines are big enough. The fuel pump, however, is sketchy. I would definitely recommend replacing the pump with the Walbro 255ltr/hr high pressure pump. Try here for good prices:

http://members.home.com/syclone/APE/fuelpump.html

Tim

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TRAXION's 1990 IROC-Z
Best Time = 12.244 @ 112.51mph (1.778 60' / 7.819@88.32mph in the 1/8)
All Natural. No Force. No Drugs. Stock Bottom End. Stock Body Panels.
Gunning for NA 11's with bigger cam, bigger stall, and bigger exhaust.
-=ICON Motorsports=-
Moderator: PROM board at thirdgen.org
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