flyrotary@lancaironline.net Mailing List Archive

MSD Competition Fuel Injectors

Hi folks,

Here is the MSD web site with a lot of information on injectors that may be of assistance. The MSD 2013 injectors are 50 lbs/hr and the high impedance type (12 ohms). I used the MSD 2012 in my TMW 4 injector throttle body on my first 86 N/A engine and they worked just fine.

I don't know about Dave ATkins EFI, but most do not accommodate injectors of different impedances or flow rates. It sounds reasonable if you are using Tracy Crooks EC2 that the resistors might only be needed for the low impedance pair, but you would need to check with him to make certain. Also, there is some capability to adjust injector timing betweens secondaries and primaries, but not enough, I don't think, to accommodate different size injectors.

Ed Anderson

http://www.msdignition.com/fuel_intro.htm

Injectors

The chart below lists all of the MSD Competition Fuel Injectors available. The static flow rates (pound per hour) are approximate with fuel pressure set at 43.5 psi (3-bar) and fuel specific gravity at 0.788. The flow rate tolerance between individual injectors of the same static flow is 1.5% -3%.

Part Number	Static Flow	Driver Type	Resistance
PN 2010	21 lb/hr	12V Saturated Circuit	12 Ohms
PN 2011	26 lb/hr	2/0.5A Peak & Hold	2 Ohms
PN 2012	34 lb/hr	2/0.5A Peak & Hold	2 Ohms
PN 2013	50 lb/hr	12V Saturated Circuit	12 Ohms
PN 2014	72 lb/hr	4/1A Peak & Hold	2 Ohms
PN 2015	96 lb/hr	4/1A Peak & Hold	2 Ohms
PN 2016	19 lb/hr	12V Saturated Circuit	16 Ohms
PN 2017	22 lb/hr	12V Saturated Circuit	16 Ohms
PN 2018	38 lb/hr	12V Saturated Circuit	12 Ohms
PN 2019	24 lb/hr	12V Saturated Circuit	12 Ohms

Direct Replacement Injectors
Some of MSD’s Competition Fuel Injectors can be used with the factory electronic control modules. The following are a few recommended applications:
PN 2010.............Replaces the secondary injector on ZR-1 Corvettes.
PN 2011.............This is a replacement for the GM Quad IV, 2.3L DOHC engine.
PN 2016.............A direct replacement injector for the GM 5.0L engine.
PN 2016.............For Ford 5.0L engines, this injector matches the stock flow rate.
PN 2017.............A replacement for Chevrolet 5.7L engines.
PN 2019.............Direct replacement to for earlier LT-1 engines.

logo.gif

2010.jpg

dimension.gif

green.jpg