Re: Side-Gapping and Indexing Spark Plugs
 

What kind of MPG gain should I expect from that % wise? I didn't see any numbers here (not saying they aren't here just saying I didnt see them).

Also where do I find the washers for indexing.

Thanks in advance for your help.

Jack

Can't quantify any gain for me. Just thought it was worth a try.

Hey Jack, I obtained indexing washers at a local speed shop. Accel puts out a 30 ct. 'variety pack' w/ 10 of each size washers. Don't expect a noticible increase. Not to say that it doesn't help, but I think mpg gains are on a case to case basis. I have some extras if you want to PM your name/address I can send you some (may have to double up on some plug/slim pickings-mainly thin ones left). But at least you wouldn't have to drop the $ before checking out any possible results. Good Luck.

Got it Jack, will send them out tommorow.

This will be one of the things I test once I get my testing route super nailed to hell. "The Ultimate Test of Plugs and Plug Combinations"

let us know the results, which way the spark plug is turned too.

It will be in a long time, I need to iron out a lot of things first, so don't hold your breath.

ok.I just want to know incase I run out of stuff to do. I still have plenty of stuff left.

Where does this thread begin?

https://www.gassavers.org/showthread....ht=spark+plugs

I do believe.