Coil Pack Conversion - More Info Needed - Nissan : Datsun ZCar forum :Nissan Z Forum: 240Z to 370Z
User Tag List

 
LinkBack Thread Tools
post #1 of 4 (permalink) Old 11-06-2019, 01:21 PM Thread Starter
Member
 
Join Date: Feb 2004
Posts: 36
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
(Thread Starter)
Question Coil Pack Conversion - More Info Needed

I am currently looking into doing a distributorless, coil on plug conversion on my L24 engine. I'd to gain an understanding of what parts were used in the conversion. Are there any fabrication needs or any other "gotchas" I may not be aware of? I would think most if not all L-series, 6-cyl engines would fare similarly with compatibility.

There is no clear how-to online. The goal is to end up with a setup with reliability and quality. Part/model numbers are certainly appreciated.

Here are some of the links I've come acorss in researching -

71 240Z | 91 300ZX N/A - SOLD
z32 fairlady is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 11-06-2019, 04:20 PM
Senior Member
 
cgsheen's Avatar
 
Join Date: Mar 2007
Location: Tempe, AZ
Posts: 639
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 65 Post(s)
Garage
I'm using the Ford coils that Bryan Blake references and I've seen his L-series Ford coil bracket in person - it's very nice. I'm using a Megasquirt MS3X ECU, a Nissan ignitor to drive the Ford coils, and the DIYAutotune optical wheel in my L28ET distributor. But, my engine is EFI (Nissan ECCS) to begin with.

First you need to decide how you want to drive the coil packs you want to use. There are many different ways to do COP but nearly all require an ECU (and $$$)… I'll be puzzled why you want to go this route on a carbureted engine.

You'll probably find the most information on this stuff at https://forums.hybridz.org/

(Okay now a little more: If you want full sequential you'll need both a cam and crank signal to "tell" the controller when the engine is approaching TDC on the compression stroke. You can do a wasted spark ignition with only a crank signal. Wasted spark will fire 2 coils at the same time since it doesn't "know" if the engine is approaching TDC on the compression or exhaust stroke. You still need a "spark controller". I think most people use a toothed wheel on the damper pulley for crank signal (toothed wheel and a sensor to "count" the teeth - a missing tooth verifies position). The L-series doesn't have a very convenient way to mount a cam sensor necessary for full sequential COP. Though many people have found ways other than using the L28ET distributor body and drive spindle. The '82-'83 280ZX Turbo (L28ET) uses an optical wheel inside the distributor body to provide crank and cam signal to it's ECU. Since it mounts on any L-series engine, it's pretty simple to use - costs money and is getting harder to find, but it's fairly simple. There are also other similar C.A.S. units that can be adapted (but that's not generally an option for a DIY install - you need skill and/or a machine shop and/or $$). And, that's just a start...)

1974 "early" 260Z - L28ET - MS3X full sequential fuel and spark, COP=Ford 4.6 coilpacks w/ Nissan Ignitor, diyautotune chopper wheel - FMIC - T04E .63 A/R - 400cc Injectors (too big!), 14point7 Spartan2 Wideband - C/R 5-speed - Coilovers - Big Brake Kit up front, Porterfield friction all around. Mesa, AZ
cgsheen is offline  
post #3 of 4 (permalink) Old 11-06-2019, 05:31 PM
Member
 
crayzlair's Avatar
 
Join Date: Mar 2012
Location: NW Ohio
Posts: 67
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
I went with an Electromotive TEC-GT on my autocross car. I originally had it set for ignition only as I was running triple Mikunis. I have since changed to Borla/TWM injection, having issues with the carbs in fast cornering conditions. Fuel injection is "The Boss"!
I had to add a crank trigger toothed wheel to the damper pulley, but was able to get rid of the distributor.
The system wasn't cheap, but it offers me very reliable performance in all weather conditions.


http://www.lektronics.com/gallery/in...-240Z/DSC00710
http://www.lektronics.com/gallery/in...-240Z/DSC00773

Larry


1976 280Z - Street

1973 240Z - SCCA Autocross F Prepared
crayzlair is offline  
Sponsored Links
Advertisement
 
post #4 of 4 (permalink) Old Yesterday, 08:22 PM
Senior Member
 
Join Date: Nov 1998
Posts: 448
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Pick up a z32 cas/ignitor and graft it onto the L28ET distributor shaft. Use the z32 ecu to control coilpacks and injectors. I did that a few lifetimes ago. Megasquirt is a much easier option.

72 240z Series IV
Bernard is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Nissan : Datsun ZCar forum :Nissan Z Forum: 240Z to 370Z forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in













Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
 


Content Relevant URLs by vBSEO 3.6.1