what brand does everybody use and how do you like them. i am getting ready to change mine and am just curious. i plan on getting mine from the dealer so i will have motorcraft plugs and wires.

 

motorcraft plugs are good. I have JBA cables. Passenger side plugs are a pain in the **** to change. have fun with that

 

check out Wayne's ( graniteguy) site www.UnderdogPerformance.com

and here the link to the plugs and wires http://underdog-performance.com/id72.html

 

i went to Napa auto parts and got Belden wires and they were $150 a set and they were the best they had and i love them never faled me yet and i also have the motocraft plugs i put in

 

motorcraft plugs and wires, all the way

 

BOSCH wires and Autolite Platinum plugs

 

mine had both when i bought it, kinda dissapointed me, i was hoping to get the gains when i switched it out

 

BOSCH IS THE WAY TO GO my dad works for bosch and he brings me the newest plugs and wires they got

 

you wont notice a power gain by switching to aftermarket plugs and wires. you may think you do if you are replacing worn ones, but you will get the same feeling using stock OEM plugs and wires, they are MORE than adequate.

Bosch plugs have done nothing but give me grief in 4.0 SOHC engines, i pulled them out of the explorer and threw them in the woods. only motorcraft, or autolite, for me.

todays ignition systems do not require improvements on a naturally aspirated engine

 

^^ agreed. You can gain back some lost HP from old worn out components. Leaving plugs on 100,000+ miles and you will have gaps that have widened to the point you will lose some sparks and the gas will leave the cylinder and burn up in the cats. If you check your mileage regularly, this will tell you if you recovered some of the loss back. Better mpg = more HP with ignition components.

 

im not sayin that u will get a power gain but i notice i do get a little better fuel mileage but i also got some stuff thats not even out on the market

 

how much do plugs and wires cost at the dealerships?

 

dealerships will overcharge, graniteguy has great prices on motorcraft plugs, and his wires are pretty well priced as well

 

autolite/motorcraft. this is one place OEM is best...

 

What do you guys think of Iridium plugs?

 

They are excellent for forced induction applications, but are not cost effective for N/A motors... The electrodes will bend when you break a piston... HAHA

 

ive got NGK iridium plugs in my truck and JBA wires. i think it runs a little smoother but whos to say my old plugs were really that good.

 

How often should the plugs and wires be changed?

 

Dealer claims 100k miles... NO!!! I have taken them out at 50k in the 4.0 and they were burnt up. I also had a hard time getting them out b/c they were rusted in the heads. Take it from me, you dont want to have to pull the heads to fix the threads for the spark plugs!!!

 

definitely not... I'll probably pull mine around March when the weather gets warmer. I should be around 40k miles then.

 

i got motorcraft platinum plugs and motorcraft wires. the wires are 8mm wires, the same size as aftermarket wires. The dealership i buy parts from sold them to me both for $65.00. the local Car Quest wanted $75 for their platinum plugs and 8mm wires. that seemed like a good deal to me.

i am the type of person that would rather spend a little extra money on factory parts than going to a parts house. yea you might pay a little more (seems the local dealership is cheaper on their parts than the local parts houses) but if Ford will put it on their new vehicles, then i will put it on my 97.

 

I have not seen them in a car, but denso sponsers our Mini Baja program and they hooked us up with some iridiums. we are limited to a 10 hp briggs and we have a dyno for it whit a new champion we got 8.7 hp turned the thing off pulled the plug and put a new denso in ther and got 9.4 and i know that .7 horses sounds small but when your only dealing wiht around 9 its noticable

 

Good to know. A friend of a friend that works at a local dealer told me that the Iridiums are the sh** now. That's what they're putting in the police cars now. BESIDES, the dealer wants $10.50 ea for motorcraft platinums, & $120 for a set of motorcraft wires. I'm not going for that when I can get iridiums for about $9 ea and multiple name brand wires for around $70 to $90.

 

damn sun i think the dealer you are visiting is screwing you. i paid $65 for motorcraft platinum plugs and wires at my local dealership.

 

Dude, you have no idea !!!!!! There's 3 Ford dealers within 10 miles of me, and they all are gorging people left and right. And to top it all off, the service is absolutely the worst. I'm beginning to think the dealers are hiring the mechanics that are even to stupid to work at the backyard shops. On the rare occassion I have to go to the dealer, only 1 or 2 guys work on my truck. If they can't, then I leave.