injector size
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Joined: Nov 2003
Posts: 1,194
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From: santa barbara,ca
Car: 1990 iroc z
Engine: LSX 376 F1A
Transmission: 4l60e
Axle/Gears: 12 bolt 3.42
injector size
what injector size do i need for my zz 383 with accel superram the zz 383 engine specs
Specifications:
Horsepower: 425 @ 5400 RPM
Torque: 460 lb-ft @ 4500 RPM
Compression Ratio: 9.7:1
Block: Cast Iron, 4-Bolt Main, 1-piece rear main seal
Crankshaft: Forged 4340 Steel, Externally Balanced
Connecting Rod: Powdered Metal (Special ''383'' Version)
Pistons: Hypereutectic Flat top with offset pins
Camshaft: hydraulic roller, 222°/230° @ .050'', .509''/.528'' lift, 112° centerlobe
Cylinder Heads: Aluminum Fast Burn 62cc chamber, 210cc intake runners, 2.00'' hollow stem intake/1.55'' sodium filled exhaust valves, LT4 Corvette valve springs and lightweight retainers, D-shaped exhaust ports and dual intake manifold bolt pattern and standard & center bolt valve cover paterns
Rockers: 1.5:1 Aluminum full roller, self-aligning
i was told it jegs that i should use 24lb injectors,but iwas thinking it might be small??
Specifications:
Horsepower: 425 @ 5400 RPM
Torque: 460 lb-ft @ 4500 RPM
Compression Ratio: 9.7:1
Block: Cast Iron, 4-Bolt Main, 1-piece rear main seal
Crankshaft: Forged 4340 Steel, Externally Balanced
Connecting Rod: Powdered Metal (Special ''383'' Version)
Pistons: Hypereutectic Flat top with offset pins
Camshaft: hydraulic roller, 222°/230° @ .050'', .509''/.528'' lift, 112° centerlobe
Cylinder Heads: Aluminum Fast Burn 62cc chamber, 210cc intake runners, 2.00'' hollow stem intake/1.55'' sodium filled exhaust valves, LT4 Corvette valve springs and lightweight retainers, D-shaped exhaust ports and dual intake manifold bolt pattern and standard & center bolt valve cover paterns
Rockers: 1.5:1 Aluminum full roller, self-aligning
i was told it jegs that i should use 24lb injectors,but iwas thinking it might be small??
Last edited by 90-irocdx3; May 10, 2005 at 06:06 PM.
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Joined: Apr 2000
Posts: 1,338
Likes: 0
From: Chander, Arizona USA
Car: 2006 Silverado 1500
Engine: 5.3L
Transmission: 4L60E
24's would do it, but i'd recomend going to 30's. they will leave much more room for future mods and be slightly easier to tune.
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Joined: Jul 2001
Posts: 3,931
Likes: 0
From: Palm Bay, Florida, USA
Car: 95 E-150 & 07 Kawasaki ZX-6R
Engine: A slow one & a fast one
Transmission: A bad one & a good one
Axle/Gears: A weak one & a chained one
I'd agree there. Go with 30's and just run a little less fuel pressure than you would with 24's.
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Joined: Sep 2001
Posts: 1,195
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From: Flowery Branch, GA
Car: 1985 Iroc-Z
Engine: 1 BA 305 TPI
Transmission: Probuilt 700R4 - 2800 Stall Midwest
Axle/Gears: 3.42
At least 30# if you ever plan to get more out of it. I'm putting 36# in my 383 and it has 460hp and 400 tq.
Joined: Sep 1999
Posts: 1,405
Likes: 8
From: Grand Rapids, MI
Car: 1985 IROC-Z
Engine: Magnacharged LS1
Transmission: T56
Axle/Gears: Ford 9" 4:11's
I just put that same crate motor w/super ram in a blazer and used 24# injectors. I felt the 30# would be just a tad too big. Idle and part throttle tune are more important to the customer than high RPM power, so that also drove my decision.
Joined: Jun 2003
Posts: 5,028
Likes: 78
From: Desert
Car: 1991 Z28 Vert
Engine: 383 single plane efi
Transmission: T-56
Axle/Gears: 8.8 with 3.73s
SLP makes a good inexpensive 25 lb per hr injector, Ford has a good 30. DO NOT BUY ACCELLs. they are bad.
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