I'm gonna give the Z a tune up as soon as I take it out of storage and I was wondering my new spark plugs should be gapped at, or does it even matter? Thanks

 

For the stock heat range spark plugs the gap should be .050

I would say it makes a difference, I just replaced mine and the ones I pulled out were all at different gaps. I can feel the difference with my new properly gapped plugs.

 

Gap is .50.... And everyone has diff opinions on spark plugs... If you use the Search at the bottom, youll find alot of threads on this subject... I use bosch +4 with no prob....

93Z Will

 

NGK tr-55's, they should be pregapped, if not than its .050 for stock heat range

 

Thats what I got as well, even the auto lites we ran in m buddies nitrous motor came pre-gapped. When we checked it, they were dead on.

 

ALWAYS double check pre-gap. Doesn't take much to bend the electrode.


Ryan

 

definately even if they're pregapped besure to doublecheck

 

I run the Bosch +4's, and when you look at them, you know right away that they are going to make a difference! They are platinum with 4 ground electrodes, and when I put them in my Camaro, gas mileage went up, it was easier to start, and throttle response was better. Granted, this was the first tuneup for the car (it still had the orig. AC's and some of the discs were missing). These will cost a little more than standard plugs, but they are definately worth it. Not having to change them for a hundred thou is also a plus!

 

um newbie question how long should the stock set last I have 56000 miles and I dont think the first owner changed them.

Thanks
Ed