LSx Coilpack S13 SR20DET Write-up

[Tyler_240]

There are numerous guides and how-to's out there on how to do this. I am not trying to take credit for the technical info, because its been out there on the net for sometime.

I did have to look at a few different posts/forums to gather the correct information , which is the reason for this how-to. The others are missing pictures/diagrams, and there is a lot of misinformation. I specifically followed Codyace's instructions for what its worth and had zero issues. I do have a MS-PNP2, but it is still setup for wasted spark or factory oem sr20 coilpacks at the moment. It runs silky smooth up top.

http://websitecre8.com/images/finished.jpg

Parts List
(4x) D580 Ignition Coilpack (PN: 12573190) - Ebay Link (http://www.ebay.com/itm/GM-Chevrolet-Ignition-Coil-Pack-Bracket-PN-12573190-Camaro-Corevette-LS3-V8-/262628741811?vxp=mtr) - $58.10 Shipped
http://websitecre8.com/images/d580.png

(4x) Ignition Wires (PN: 35-8158) - Advanced Auto Link (http://shop.advanceautoparts.com/p/carquest-premium-spark-plug-wire-set-35-8158/10507054-P?searchTerm=ignition+wires) - $39.99
http://websitecre8.com/images/wires.png

(4x) NGK BKR7E (PN: NGK 4644) - Amazon Link (https://www.amazon.com/gp/product/B007HGC9NQ/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1) - $12.00
http://websitecre8.com/images/ngk.png


(1x) S13 SR20DET Coilpack Harness Connector (Sensor Side) - Wiring Specialties Link (http://www.wiringspecialties.com/connectorg1.html) - $8.95
http://websitecre8.com/images/connector.png




Alternatively you can use 2JZ Plug boots or MSD Boots and custom make a COP setup.



First, you need to delete your igniter. This is simple. Disassemble the igniter and wire straight across. Leave the (G) pin alone.
http://websitecre8.com/images/igniter.jpg



Next, you need to rewire the coilpack harness for the SR20. This is simple. I am going to assume you purchased the coilpacks with a harness, like I did, for the sake of this write-up. If not, you simply purchase (4x) LSx coilpack harness connectors from wiring specialties and follow the rest of this guide. I happened to have a spare SR coilpack harness, so I re-used 6" of OEM wiring and the connector. The wire color next to the pink wire on each connector corresponds with the 5V ECU SIGNAL.

SOLDERED AND HEATSHRINKED
http://websitecre8.com/images/harness.jpg

ALL WRAPPED UP
http://websitecre8.com/images/harness1.jpg


For example, if the #1 Coilpack Connector has a Dark Purple wire next to the pink one, then you would wire the dark purple wire to the black lead wire coming from PIN 1 on the SR20 Connector. Rinse and repeat for the other 3.

LS WIRE COLORS to S13 SR20DET SENSOR WIRING

12V (PINK) -> BLACK\WHITE (12V) (PIN 6)
5V ECU SIGNAL (#1) -> COILPACK #1 (PIN 1 )(BLACK)
5V ECU SIGNAL (#2) -> COILPACK #2 (PIN 2)(RED\WHITE)
5V ECU SIGNAL (#3) -> COILPACK #3 (PIN 4) (RED)
5V ECU SIGNAL (#4) -> COILPACK #4 (PIN 5)(RED\GREEN)
GROUND (BLACK) -> ENGINE GROUND
GROUND (BROWN) -> CHASSIS GROUND


Finally, you need to install your new spark plugs, modified igniter, and coilpacks w/ modified harness. This is how I temporarily chose to mount mine. I have minimum clearance with the hood due to my nismo mounts raising my motor pretty high. The ignition wires are short too, but I had zero problems attaching them to the spark plugs with my fingers and closing my hood. I attached my ENGINE GROUND to the factory location on the engine head behind the motor. I attached the CHASSIS GROUND to the fender.

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[jedi03]

nice writeup!