E3 plugs

Although there is performance to be had. Ever heard of indexing?? Something that Smokey found in the 60's.
Washers are made for this, to get the open end of the electrode facing the top of the piston, for better flame travel. Another trick is to cut back the ground strap to expose some of the elextrode,,,also promotes better flame travel. The Autolite race plugs come this way. But it's easy to trim them back on your own, I generally do this myself.

Heat ranges play a big factor,,,and can soley be used as a tuning tool...

Ever change heat ranges and watch your wideband change?? Heat ranges can make differences in what you run for timing tables, fuel mixture or (AFR) as well.

These little tricks I mentioned affect even a stockish car.

ok there a lot of people on here that would recommend autolite. i was online looking at them and i found fram autolite. now are these the same?

i would have to guess no since the price difference is so drastic but i thought i would double check

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Originally Posted by Wesman

No, it can't.

A better spark will create more complete combustion and therefore more power and better fuel economy.

A shitty ignition system will not have the power to run a performance engine. Weak spark causes power loss, misfires, and higher emmissions, which is a lose-lose. You want a high voltage spark with a large flame front, which is why our engines use 8 individual coils and have a stock gap of .060".

There is so much information on spark plugs you could be reading for hours. Heat range, manufacturer, electrode gap, electrode materials, ect. Just because it makes a spark doesn't mean its efficient or ideal.

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+1 :welder:

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Originally Posted by hotride3021

ok there a lot of people on here that would recommend autolite. i was online looking at them and i found fram autolite. now are these the same?

i would have to guess no since the price difference is so drastic but i thought i would double check

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Fram Autolite?? Never heard of that...

What is done to your car?? If you are changing heat ranges, Autolites can be beneficial. For a stock or bolt on car, I'd go with AC Delcos any day of the week.

Quote:

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Originally Posted by hotride3021

ok there a lot of people on here that would recommend autolite. i was online looking at them and i found fram autolite. now are these the same?

i would have to guess no since the price difference is so drastic but i thought i would double check

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What you found is that FRAM is a division of Autolite. Has been for many years. They are both owned by Honeywell. As is Bendix and Prestone.

Quote:

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What you found is that FRAM is a division of Autolite. Has been for many years. They are both owned by Honeywell. As is Bendix and Prestone.

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thanks for clearing that up for me

Quote:

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Fram Autolite?? Never heard of that...

What is done to your car?? If you are changing heat ranges, Autolites can be beneficial. For a stock or bolt on car, I'd go with AC Delcos any day of the week.

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just a few bolt-ons thats it

thanks for the advice:thumbup:

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Originally Posted by Z28_Driver

What you found is that FRAM is a division of Autolite. Has been for many years. They are both owned by Honeywell. As is Bendix and Prestone.

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Yes, what he said!! :)
Some people like NGK's as they find them easier to read, I like Autolites, been using them for a long time in multiple applications.
Spark plug indexing does give you a little more power, specially in higher dome smaller or less efficient combustion chambers. It is easy HP! :firedevil:

NGK TR55 work good for me.

I figured out what the miss was in my motor, I had 2 bad o2 sensors an they weren't sending a single to the computer. I changed them out car runs great (without a tune) I'm not running it hard by no means but I'm getting it tuned today so I can't wait to see how it pulls!

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Originally Posted by 02_slp_ss

NGK TR55 work good for me.

I figured out what the miss was in my motor, I had 2 bad o2 sensors an they weren't sending a single to the computer. I changed them out car runs great (without a tune) I'm not running it hard by no means but I'm getting it tuned today so I can't wait to see how it pulls!

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Good luck with the tune!
Where are you taking it for the tune, is he doing a dyno tune or street tune?