Hey Guys,

Just wanted to get a feel from all of you on if you have changed out your factory plug wires and what you changed them out to (size, brand etc).

I have on 04 QC 5.7l with 78k on it that needs a good tune up. Going to be doing the rear diff and have already changed out to a K&N Oil filter with Mobil 1.

Thanks for all the help.

Andy

 

Wow I dunno the first thing about aftermarket hemi wires. They anything like the old boot style. I know dumb question ,...sorry.

 

From what I can see looking online at different sites they are the old boot style, and they make standard wires and shorty wires (?). If someone could explain the difference I would appreciate that too!

 

We/I need pictures both stock and aftermarket installed. That would help imo.

 

Maybe someone else will chime in...I think the shorty wires would clean it up a bit and maybe have a slightly quicker ignition

 

Good questions. I was wondering myself. Not to hijack but:

1. Is thicker wire than stock better?

2. How thick can they be and still fit neatly in those channels under hemi-hat.

3. Does thicker mean thicker gauge wire or just thicker insulation?

 

I put on the MSD 8.5 wires at 60k miles and could tell a slight improvement in idle smoothness and low end acceleration. Gas mileage went up about .7 mpg which is what I'd expect as I changed plugs also. Wires were too big to fit in the wire tracks on top of the engine but I used zip ties to get the wires organized.
Normally plug ignition spark goes from the coil boot straight down to the plug underneath and also to the opposite cylinder on the other side of the engine. Coil pack on #1 engine fires one of the cylinder #1 plugs and one of the plugs on cylinder #7. With shorty setup, coil boot #1 fires only the #1 cylinder; the cylinder directly below the coil boot and a "shorty" wire that connects the coil boot to the other plug in the #1 cylinder.

 

im running the taylor thundervolt shorty wires. they didnt do anything for me other than clean up the engine bay. and they work just fine.

heres a link to where i got em.

http://moesperformance.com/index.php...roducts_id=126

 

Posted a sec after yours john, I don't think they are for my 06 however.

 

Red Taylor 8.2 Shorties. Like em, won't go back to the long ones even though people swear that the long ones make your truck a hair faster. Whatever, these work great for me and you can't tell a difference. Same as john, got mine from MOES.