has anyone indexed the plugs on their max??

if so what kind of differences do you notice??

i heard increased gas mileage, smoother idle and better response.

i am considering doing this but did not want to go through thte hassle if nobody is seeing any significant results.

 

what do u mean by indexing your spark plugs ?

 

http://dodgeram.info/Engine-Gas/Spar...0_indexing.htm

 

that was a good informative link.

i guess that nobody has done a maxima??

i had read a similar thread on dodgetalk because i have a 5.9l durango, but i was not going to spend the time on it, wanted to do it on the max, if someone could say it had helped them.

 

I've never heard of it. That's not to say it might not help a tiny bit, but I've been tracking fuel economy on my car long enough to say that you can't conclusively measure a small change anyway. If it makes you feel more comfortable with it, do it.

It seems to me that with a new plug, you just hand-tighten, then go further with the wrench until the mark lines up correctly. The crush washer will take up the difference.

Dave

 

Waste of time for a street engine..........

 

I know this is an old thread, but I strongly disagree. The VQ actually has quench areas that are cast right into the head. Look up a picture of the head, from the spark plug facing the exhaust valves. The heads were designed to have the plug gap face the exhaust valves. In an ideal world, they would. I indexed my plugs both ways, once facing intake and then the exhaust. The difference was very noticeable. No dyno here, but an unmistakable difference. If you're interested in maximizing efficiency and power, it's a small investment with a nice reward.

 

I've indexed plugs as recommended on a 2-stroke outboard motor, but I cannot even begin to fathom why it would make a difference on a 4-stoke gas engine.

If it did change anything from a performance standpoint, the mfg's would be all over it like ugly on an ape, touting they could wring a few extra ponies out of it without add'l cost.

Wrap your fuel lines with a couple of magnets and use a battery-powered turbo intake as well, it's all the same B.S.

 

i remember those when they 1st came out way back in the day we thought people were putting leaf blowers on their cars

 

Why then would Nissan CAST it onto the heads? I don't think Nissan ever HAD to brag about the VQ. It spoke for itself. Taking it to full potential was not necessary off the showroom floor.

 

My Maximas would be a lot faster if I want on a diet and lost 20 lbs, but I still eat at Mickey D's. Use a Sharpie when you index your plugs, it works best.

And you don't need to buy the washers/shims, the variance in allowed torque will let you get the gap into the zone you want it to be in. Once in a while one won't work, just swap with another or switch holes, every cylinder plug thread is different as is every plug thread, in relationship to the spark plug open gap.