What Plug Wires Are You Using?

[markinms]

Engine is a 1990 5.0L. I'm using stock exhaust manifolds from a 1996 Explorer. Driver's side is fine; passenger side not so much.

Passenger side exhaust manifold is configured for smog (I have it plugged). Because of this configuration, exhaust outlets/runners on cylinders 2 & 3 make constant contact with the plug wires. I am using "heat sleeves" over the boots but the heat is still burning the plug wire boots causing the plug wires to burn & crack. The result, idle issues and miss during acceleration, and overall poor performance.

For those you who've done a "non-Explorer" V8 swap and are using the Explorer intake manifolds, what plug wires are you using? Are you experiencing any issues like I described? If not, any recommendations what I can do to further protect the wires from the manifold?

Thanks for any assistance!
Mark

 

[markinms]

Update.

Continuing to run straight boots on all cylinders except 2 & 3. I made two wires with a 45 deg angle boot and they now clear the manifold. Hopefully this will resolve the problems I'm having.

 

[85_Ranger4x4]

Update.

Continuing to run straight boots on all cylinders except 2 & 3. I made two wires with a 45 deg angle boot and they now clear the manifold. Hopefully this will resolve the problems I'm having.

Sounds good!

I have different headers so I wouldn't have helped you much, I just have the blue Ford Racing cut to length wire kit with 45* boots.

 

[markinms]

Thanks for the feedback.

Talk about coincidence, I was searching for posts about headers and found YOURS. Nice write-up. When I have a bit more free time I'll check out your Truck Build Thread.

Mark

 

[Elutheros]

Since I'm using an EDIS ignition with Explorer coil packs I finally coughed up the bucks for Motorcraft wires. Expensive. But they work and don't get melted by the exhaust (stock cast iron GT40P) manifolds.

 

[markinms]

Thanks for the tip about Motorcraft plug wires. I'll take a look at what's available for my application. The key for me is the boots "must" be high-heat resistant, not just heat resistant.

Take care,
Mark

 

[Ramcharger90]

I have been using Accel ceramics 45* boots for a foxbody mustang works great with exploder exhaust manifolds on P heads in a 90