Plugs/wires--half done with a couple of questions

[ViperBite]

Due to the high rpm cutout I posted about earlier I got advice to change plugs and wires. Figured what the heck, don't know when they were replaced last although I knew they weren't stock. Car has 7350 miles. Got the MSD PN 32269 and Bosch 4308 today.

Did the driver side first, other side tomorrow. Being the somewhat anal guy about my new Viper I measured the resistance of each new wire and old wire. Here are those results. All measurements are in ohms, there are no typos.

Cylinder/OLD/NEW

1/1470/120
3/1500/135
5/1330/117
7/880/81
9/1026/93

Any opinions about the resistance measurements and how that would affect performance?

Plugs all looked the same although I know that may not mean good. I will post some pics of them tomorrow and get a few opinions. I did not see anything that has given me concern.

Question: The MSD wires are longer. Instead of placing them in the rear wire holder I am just going to let them free under the cowling area. The wires take that position naturally. I can't see where that would be a problem. I did route them through the other 3 wire holders. All nice and neat and pretty.

 

[AG98RT10]

Not an expert by any means, but why did you not put the MOPAR wires back on? Why MSD? Clearly they are not resistor wires, so expect radio frequency interference in your audio system.
I replaced all my plugs wires with MOPAR and plugs with OEM last year and no problems...

 

[MaxedGTS]

the MOPAR wires cause alot of radio noise.The factory wires don't. Ive heard of other people having problems with the msd.
Max

 

[GR8_ASP]

MSD wires are fine. I experienced no issues with the radio (course I never use AM).

 

[AG98RT10]

Guess I'm just from that school of "ain't broke, don't fix it." I use MOPAR OEM oil filter, plugs, plug wires, etc...
Seems to work well for me.

 

[ViperBite]

I used a different setup at the recommendation of a well respected tuner on this site. I am not putting down the OEM stuff, just want to know if the delta resistance values can provide information about potential performance of the car. I was having 5500+ rpm problems. Also I did have interference with the radio (am) with the Mopar blue wires.

Plus, I usually replace all plugs/wires/fluids soon after a purchase because I don't always know the age of the stuff. I know the oil was changed at purchase. So when I do this type of maintenence I take the opportunity to use potentially better stuff than OEM. Thats just me. On my "regular" cars I stay with the OEM. The Viper gets the upgrades when it makes sense.

 

[GTS Dean]

Being the somewhat anal guy about my new Viper I measured the resistance of each new wire and old wire. Here are those results. All measurements are in ohms, there are no typos.

Cylinder/OLD/NEW

1/1470/120
3/1500/135
5/1330/117
7/880/81
9/1026/93

Any opinions about the resistance measurements and how that would affect performance?

Wire resistance is in ohms/ft. The shortest wires are 7 and 9, but 9 looks like it should be running as far as the 1,3,5 group. It may be that 7 comes off the passenger side pack and has to be longer to get to the plug. I generally try not to think about the skinned knuckles and forearms that go along with changing plug wires. BTW - the early GTS shop manuals have the plug wiring diagram wrong. Do a wire-for-wire swap and you won't have problems.

It's pretty obvious that the OEM wires have 10x the resistance of your new ones. Unless you're running 13:1+ compression, or serious boost, I doubt you will see any net gain from running non-resistor wire.

 

[ViperBite]

Done with install. Further study of the Mopar wires shows them to be 500 ohm/ft type. So the wires are ok for that rating. I will keep them since they seem to be in good shape. Although I did not list the rest of the wire resistance, they were similar to the driver side bank.

Here is the worst plug of the bunch. It is from cylinder #2, front pass. Click on the image and you can get better closeup. Again I have no idea how long these have been in the car. Does not seem to be too long.

Plug 2

Here is plug 10 in the center with 9 and 7 opposite.
plug 10

Install did not take too long. Once you remove a few items that get in the way, it was a piece of cake.

 

[Anaconda]

Not an expert by any means, but why did you not put the MOPAR wires back on? Why MSD? Clearly they are not resistor wires, so expect radio frequency interference in your audio system.
I replaced all my plugs wires with MOPAR and plugs with OEM last year and no problems...

"expect radio frequency interference"??? How about "you might have radio interference?"

I have the MSD wires now, and have no radio interference. I got the MSDs because I ran them on both of my Mustangs with good results. I didn't have radio interference on either of those cars also.

 

[Ratical2]

Just hit 20K on my stock 96 GTS. Today, I changed out the wires and plugs and was really happy with the improvement in idle and the car seems to have better/ smoother acceleration. The only oops is now there is much more AM radio noise. It was bad enough before, now it is 2 to 3 times worse.
I used the MSD 8.5 wires and Bosch 4308 Platinum plugs.
Any suggestions!

 

[viperdude118]

Not an expert by any means, but why did you not put the MOPAR wires back on? Why MSD? Clearly they are not resistor wires, so expect radio frequency interference in your audio system.
I replaced all my plugs wires with MOPAR and plugs with OEM last year and no problems...

I also switched to 8.5 mm MSD wires at 24k miles. I did have some radio interference (power supply line, CD player and FM noise), it ended up being the stereo system.

I redid the stereo system the correct way, and now no interference at all, stereo sounds great!

Bottom line MSD has a good product, they should work fine

 

[99 R/T 10]

Most are now going with AB's wire setup. Mainly because the quality is much higher than MSD's IMHO.

 

[Qualitywires.com]

Next time take a look at my wires. They are not too long and just right. No issues with ohms, no radio noise and to top it off, you get 1200 degree protection. They also come with a lifetime warranty against defects. You can pick your color also.

Jdell used them on his 1400 RWHP Twin Turbo Car. I think Jdell had some issues with a tah signal on other wires he used.

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[99 R/T 10]

Beat ya to it AB, but you had pictures

 

[Madduc]

We have AM?

 

[Ratical2]

Thanks guys!
Viperdude118- Like to know what you did to stereo system.
Ab- I bought the wires before I knew of your product.
Madduc- You cracked me up. Yup we got AM. We have one good Station in the Bay Area that keeps me sane. KSFO The Right Station on the LEFT Coast. Unfortunately it is AM...

 

[plumcrazy]

my next set of wires which is gonna be soon i think is gonna definetely be AB's

 

[VIPER BAZ UK]

Ab's wires here and very happy..........