Combustion Efficiency - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 06-08-10, 05:50 AM Thread Starter
Registered User
Join Date: Jun 2010
Posts: 21
Combustion Efficiency

I have a 1992 F-150 Super Cab with an inline 4.9 300 CID. (116,000 miles), 5-spd standard transmission.

I have recently cleaned the injectors and replaced the cap, rotor and plugs using premium parts.

I am wondering if it is worth my while to replace the plug wires and possibly the coil with a better solution.

I have heard of individuals using 8.5 mm plug wires and replacing the existing coil (I still have the factory one on the truck), with something superior.

Does anyone know the mm of the standard wires that come with the truck? They are still the original wires.

I just don't know if it is worth my while to beef-up these two components; and if so, what is the best solution for me.

Right now, the truck runs good. But could I do better?

meppwc is offline  
Sponsored Links
post #2 of 2 (permalink) Old 06-08-10, 10:28 PM Administrator
Big Block Ford's Avatar
Join Date: Apr 2001
Posts: 4,839
Re: Combustion Efficiency

I don't know what the original plug wire size is but if the original coil and wires are performing well then you may not gain anything much with an upgrade.

As the vehicle is a 92 model then I would think the wires may be getting a little dodgy and perhaps have higher resistance so replacement would certainly be something to think about.
If you want to replace the coil with a higher power unit at any stage then you should use the larger wires.

71 429SCJ Mustang
Big Block Ford is offline  
Sponsored Links

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Inline 6 Tech

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may not 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