Plug wires.
 

Hello all.
Getting really close to dyno time here.

I'm running the Daytona sensors CD-1 marine box and was wondering if anyone has any input on plug wires. (Yes, I'm going to call them tomorrow, but I wanted to see what others that have this ignition are using)

A good friend owns firecore 5.0 and Im leaning towards using his stuff.

Any consideration about the marine environment when it comes to wires or will any good quality wire work fine?

I use the mercury blue wires that comes on the 500 efi ,factory crimped ends and fit the plugs nice,we use the msd dist and 6m box

No issues with the Ultra 40 Moroso's and the Daytona ignitions.

can,t go wrong with msd or taylor plug wires.

Thanks for the replies guys.

I guess I'm more concerned with the type of wire as opposed to the manufacturer.
Are there limitations in the marine environment in regards to type. IE...do they have to be "suppression" wires?

the daytona box requires wires that do not emit rf,same as a msd box.

In the USA - Moroso makes there own cable and wire. Actually there is only 3 who does this and everyone else buys the stuff from them to either complete the set or its already done per what they want. Standard is another one plus they make alot of Nascar wire sets for them. I forgot the third.

Some others sub out to CHINA

I am dealing with someone in the USA to make better 496 wire sets than what Merc has for that app. I see these 496 OEM wires not living up to what they should. Also too many ohms for increased spark energy.

^^^^ Sorry the rest of my post got cut off after I edited it .

Anyways with the current electronics on board and with current ignition systems plus all computer controlled engines you need a very good suppression core spark plug wire set - one that has very good EMI and RFI suppression. This also helps with engines that have knock sensors so that RFI and EMI is NOT transmited noise nor the interference. IMO 8 mm and higher are the better wire sets than the 7mm and 6.5 mm spark plug wires.

I do like the Moroso wire sets.

I have some msd wires that have some bad crimps right from the factory. Actually breaking contact completely while running. 3 on one set that I found using an ohm meter. I have some pics if anyone needs to see them. Will not buy wires from them again. They were 8.8 iirc

I had a hard time getting a good pic. These are the factory terminated dual crimp terminals that msd uses. One crimp on the insulation and one crimp on the center conductor. The terminal on the center conductor was not crimped and would break contact with the slightest movement. Engine woudnt rev above 4k every other time out.

Doh ! That suks.

The wires I've had experience pull out the most are MSD's and Accell 300+.

As BUP mentioned, the Moroso wires are USA made....Philadelphia in fact. Used to use these (the ultra40's) on all the race cars - drag and circletrack. Good stuff !!!!

Lots of good words from respected engine builders (big hp engine builders) on the Firecore's the OP is referencing. One of the things about the wires they mention is it's resistance to pull out. Extremely important for those who are pulling wires off of spark plugs a lot. That is what got me off MSD and Accel 300+'s. Nothing like a new set breaking when checking plugs for tune. Frustrating !

I have had many merc blue wires for the black engine side pull right on out from the coil - the wire without the crimp. Even almost brand new apps as well. I have some pics of it if anyone wants them to your email or post them up here. Just saying.

Volvo Penta warns all techs about pulling and removing spark plugs wires as they only want you to handle the boot - one twist at the boot and pull straight off at the boot only.

The Merc 496 wires do not hard bend those wires especially in the middle. Just some added info.

And that is correct about Moroso all of it made in the USA - PA.

i have not seen that yet but i will keep it in the memory bank,unless i forget,lol.

i just looked at the moroso ultra40 wires,pretty pricy!

Moroso wires for the win! :cheer:

Cost is no object for you. We have to start supporting american made products ! Trump is gonna make america great again, but he can't do it alone

When I used to get them, I would get them fully sleeved - the 'fire sleeves' I believe they where called. Big fukin bucks ! But never had wire issues during a race. LOL.

These are the beauties. Found and fixed 3, but how can I trust the rest now? Probably just go with one of the other brands mentioned here.

i agree with the last 2 parts of that post,the first part must have been meant for DIAMOND JOE.GO TRUMP.hillary for 2017,she should be in prison by then.

Those look like they just plain forgot to crimp them. Supposed to be crimped there with needle nose. I make sets of the red wires and their always pretty nice when finished. Here's the instructions.https://www.msdignition.com/uploaded...structions.pdf

Correct. Forgot to crimp them on the pre-terminated factory side. I didn't take any of the others apart to check them, just the ones that tested bad on the engine that exhibited the problems.