new plug wires, noticeable difference?

[tstkl]

I just put these new plug wires on from our parts car. its a company I've never heard of, and they are 8.5mm wires. I used the shorter wires on the longer cylinders and shortened the longer wires so that all the wires have practiacally no play. the wires were longer than the stock ones, and with my dejon smim, my coil pack is mounted closer to the plugs that stock, so I figured It might be worth it. I haven't driven the car yet, but at idle it seems to rev much faster. the stock wires look as if they have been there the life of the car (15 years), so do you guys think that some new (used) wires could help that much? watching the tach go up didn't seem very different, but listening to the exhaust, it sounded like it was reving much faster.

btw, don't leave too long of a conductive peice at the top, if it goes past your suction cup thingy at the end and you grab the wire... well it hurts, lets just leave it at that.

 

[staticbrainwash]

I doubt the motor is revving faster, but i will almost gaurentee that if the wires that were on it were pretty bad your motor is now running cleaner and smoother. I know that a shorter wire will heed more spark, but i didn't think it was that much of a difference to notice. So what you're probably feeling is just the car having full real spark.

Did you change plugs too when you did the wires?

 

[trebornash]

Replacing my old original OEM wires made a huge difference

 

[staticbrainwash]

Thats great. . . ? How bad were the old ones when you pulled them? What wires did you replace them with?

 

[Talesin]

Replaced mine with another set of NGKs, when the old ones showed wear. SSDD. Less missing now, considering switching over to a COP setup instead, not have to deal with replacing the spark wires when they start to seem dodgy.

 

[trebornash]

I replaced them w/ Taylor sport compact series wires.Taylor also offers a full metal jacket for xtreme race applications.The OEM wires I took off had 125k miles on them.Tho I could not see any white rings around the sleeve part of the wires that fits over the plug.I went ahead and wrapped some black electrical tape around the one I thought mite be going bad just to get me by till I could afford some good plug wires.NGK was one of my choices but these Taylors rock!Had no idea that replacing old plug wires on a pretty much stock vehicle would add so much.Def makes a difference.And no more misc.spark codes.The car doesn't cut out under boost either.

 

[sweet97]

Of course replacing 100k+ mile wires will help! I use NGK Blues, way better spark than the magnacores I replaced, by far. Mark

 

[staticbrainwash]

Yeah thats what i don't get thus far. Think about it people, like said ^^^, of course replacing 100k+ wires will head positive results. DUH! Why you all waited that long anyway is quite beyond me.

 

[trebornash]

I don't know Y, ask the previous owner.I bought it w/ that many miles on it.Wanted an untouched GSX.I meant I had no idea a lil four banger would be affected that much.You can't tell that much when your running on 7 outta 8cylinders

 

[tstkl]

the old wires look almost rusted... the car seems to be running richer now, but I think it might also be something else unrelated. I didnt seem to pick up much power, but then again I don't drive it hard. maybe im just crazy... but those old wires were probably dead anyways.

 

[staticbrainwash]

I gaurentee they were SH!T. But i'm glad to hear new ones did the job for ya. I'd run a log maybe to see why or where you're running rich. ###### at injectors or FPR.

 

[tstkl]

well seeing as I spent almost no time at all tuning my mid fuel trims, and I hit fuel cut (more of a fuel hiccup if you ask me) at 48.8% tps... hmmmm I wonder...

once I get this new wideband installed I'm going to try driving it at every rpm in every condition and see where Im rich and where Im lean. my guess is my tune will be a lot more solid after this.