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FedEx man came today with the new MSD's. They sure are purty! The install was fairly easy. The passenger side was a breeze. The drivers side was a bit tougher. I had to have my wife get the one at the back of the engine. I couldn't get my hand it there to save my life. The only other one that gave me a hard time was the drivers side at the front. I'm not sure of the plug numbers. I had to remove the alternator bracket to get my hand in there. All in all it was easy as I only got 1 gash on my right hand. (I measure a jobs difficulty by the number of cuts and scratches i get on my hands. :D) The car idles really smooth now, but on the other hand it always did. :) Just thought I'd share.
No I didn't need to change the plugs. They were changed when Carroll put the supercharger on so it's good to go there. If you want to swap your plugs though, that would be a great time to do it. Surprisingly, they look really easy to change. Much easier then the plugs on my LT4.
I can't really see any benefit for putting the supplied numbers on the LS1 or LS6 spark plug wires as the individual coils are right above their plugs. Pretty hard to mess up. Numbered wires are a good idea when you have a distributor and/or long wires that run parallel right up to the head where one goes left and the other right. Here they keep you from getting out of fireing order. Since they already come with the MSD wires, it doesn't cost anything to use them, unless you want to save them for another car. :yesnod:
I put one heat shield on and it was so loose I figured they'd rattle. So I didn't put the rest on. I'll have to keep and eye on them and see exactly how close they are to the manifolds. Thanks for the tip!
Ditto, I don't seem to hear about any great improvements over stock wires as long as the stock ones are in good condition. Should I lay out the ~$50 for new wires, or just new plugs?
You're definitely not going to feel any performance gain from wires alone. Honestly, I very well could've stayed with my stock wires since they only have 4,000 miles on them. I just like the look of the MSD's. :) Although, if I ever decide to buy an aftermarket ignition, the MSD's will throw a better spark then the stock wires. (I think so anyway)
One problem I had with the MSD's, the number 7 wire (driver's side closest to windshield) was touching the metal pipe. I gently bent the pipe to give some clearance. I think it might have eventually burnt the wire, not sure how hot that pipe gets though.
Hmmmm, maybe I should put the heat shield on that one to keep it from melting. Dammit! That's the one my wife had to do since I couldn't get my hand in there. Oh well, thanks for the advice!
definitely put the heat shields back on. nothing suckks worse than burning though such lovely wires. to those of you wondering about performance gains. well, dont expect any. however, i suspect that some aftermarket venture will create an even hotter, multi-spark, ignition that will plug right into the LS1. that will make the MSD's bark!!!
even though I did replace the plugs with a copper plug NGK55's I replaced the wires mainly for a thicker wire to prevent melting the stock wires with the new headers.
I put one heat shield on and it was so loose I figured they'd rattle. So I didn't put the rest on. I'll have to keep and eye on them and see exactly how close they are to the manifolds. Thanks for the tip!
I didn't re-use the heat shields with my MSD wires and when I went back about 100 miles later to check the plug connections, one wire on the driver side fell apart in my hand on the plug side. I called MSD and they said to re-use the metal shields. They also are sending me a new wire. Cool of them. The shields just didn't feel right when I put the wires on. I guess the heat is just too great for them without the shields. My bad.....
I didn't re-use the heat shields with my MSD wires and when I went back about 100 miles later to check the plug connections, one wire on the driver side fell apart in my hand on the plug side. I called MSD and they said to re-use the metal shields. They also are sending me a new wire. Cool of them. The shields just didn't feel right when I put the wires on. I guess the heat is just too great for them without the shields. My bad.....
....nothing like updating an 8 year old thread.......
The MSD's are bendable so you can position them away from the headers. That's the best feature of the MSD's other than their super low resistance.
I was very careful to have the cap dead center of the stock manifolds. There were no burn marks. I'll try it again with the shields. By the way, after I posted, I realized how old the thread was. Just the same you guys responded! lol.......
You will NOT see ANY performance increase from a properly running LS engine from a spark plug wire change. PERIOD. "IF" the spark-plug wires on the engine are defective (Unable to properly conduct the electrical energy form the coil to the plug due to damage); new wires of any brand will make the engine run better.It doesn't matter if the wires cost $1 or $100 each. Reestablishing a proper spark current path, will make the engine run smoother.
C5/C6 wires are so short, wire resistance isn't a factor either. I prefer the GM Performance Red wires but, theres nothing wrong with other brands if that's your preference.
Purchase wires for construction quality and reliability, NOT a performance increase.