Posted: Fri Jan 02, 2015 12:50 pm Post subject: zzp wires
Hello and happy new year to everyone,i had a question,im going to change my plugs n wires in my N/A 3800 Impala and i wanted to invest in better than stock wires.I came across zzp 10.5 mm wires and i was wondering if thise would create problems or am i safe buying them? I want mpg upgrade and durability out of wires.keep in mind i have no mods to engine...thanks
Hello and happy new year fellow nor cal resident. A while back I was also reading into what kind of wires I should buy when it comes for my next tune up to get optimal mpg. Came to find out that factory, AC Delco, wires are the way to go and are designed to deliver the optimum voltage to the plugs with the ideal resistance. Some of the higher end brands like MSD, (I' don't know about ZZP though) have less resistance, but I forget what toll that takes.
Either way 10.5 mm wires seems like overkill for our cars, but that's just me. I'm helping a friend rebuild a '66 mustang for performance and were using 8 mm MSD plug wires, just my comparison
To wrap it up, since all you want is best mpg, I'd suggest sticking to Delco, especially with a completely stock set up. Let me know what you end up choosing and how it works for you... in case I decide to go the same way
AC Delco or PRJ wires are the only ones that won't case issues. The only reason to spring for the fancy PRJ wires are if you plan on taking them off frequently, otherwise AC Delco will do you just fine.
Protip: If you don't know what you're doing, don't do it.
If you want to stick with AC Delco, which I also recommend, but step up to a 8mm wire, use 19154581.
I will prob do this to both, if those will work on the 3.4
Also, is this something worth getting through you, Z? or local parts?
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I honestly don't know. These are designed for a rear wheel drive V6. I tried it on my 3800, and with a little re routing, they fit perfectly. They may fit the 3400, but I can't tell you for sure.
From me, the set runs $39 plus shipping. A quick search on Amazon headed about $32 shipped. AC Delco 626D
Yeah, I searched the part number and results came back as wires that "don't fit your 2002 Chevy Impala". ebay seems to have new sets for about $22 with expedited shipping. I don't know if I should have a doubt on age/quality based on the price
So i went ahead and bought the msd 8.5mm wires and let me tell you,these wires are making my car have a light miss.This light miss will happen only when i start the car,then it will go away.It also hard misses when i have the throttle pedal 1\4 or more percent down or any heavy load or uphill roads.very disappointing.so i think im going to buy factory wires.very disapointed,but im guessing cause my 3800 is completely stock.has this happend to anyone with these wires?
Well, everyone on this thread said buy the AC Delco wires and it was for a reason. I'd never run anything larger than 8mm wires on my Impala. You bought 8.5mm msd wires and they have less resistance I believe and could cause ignition problems, hence the misfire
Many years ago, I purchased a bone stock 70 1/2 Z-28. While it ran smooth, & was fast, I felt the car should have been faster. It had huge fat yellow spark plug wires. So one day I decided to install stock AC/Delco wires. What a difference, & the car seemed to pick up 100 hp. Turns out the wires were so fat, they were unable to seat all the way down in the cap, so there was a gap between the contacts on the wires, & the contacts in the cap. By using the stock wires, they were able to seat all the way, & the contacts were touching like they should. When I told the guy who had sold me the car what I had done, he rolled his eyes, & muttered that if he had known that, he wouldn't have sold the car. Remember, bigger isn't always better. GARY
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