ashbros

RL,

So what your saying is you position them between 10 & 2 O'Clock.

If I understand that correctly, in your circumstance, it really does not matter if they are pointed to the intake of exhaust valves??
Or is it your just glad to have gotten them into a position that they won't hit because of the hassle of installing & removing washers.

Kinda like a comfort zone......
Just wondering...

newjack42

Like Ash i was told by a old timer gap towards intake. didnt relize there was so many oppions on this.

gungho

It is for high compression engines you set it 10-2:00 so it is up out of the way of the piston as it comes up.that is why indexing is needed,it is not an option for high comp.

tireburner

I agree with rlmotorsports I mark a linr striaght down the plug and put it in with the electro up away from the piston. if I don't the plug will hit the piston. Plus I have to use the NGK racing plug 5962 r6061-10 the electro's are short striaght and tacked to the inside of the plug that gives you even more cleance.

ashbros

I also use NGK 9 or 10.

RonOwensRacing

Ya I'm not really trying to get them at the valve as much as I'm trying to get the electrode up and away from the piston mine is very close if they are pointed down they will hit i have tried to get them angled toward the valve and i have just took a lot longer and was no advantage for me after replacing the plugs the last few times i just did them at 10 and 2 and it didn't change a thing ran the same and was a lot faster for me to do it that way.

bjuice

Ron is right between 10 and 2 (strap up )....no Hp gains..this is a clearance safety issue only...Now that the plugs have cut back Straps its not as cruial to Index as it once was with the long straps on older style Plugs

FullTimeRacing

also my je pistons have a indent for extra clearance.

RonOwensRacing

I run Aries pistons in this engine and they have a dimple cut in them also but they still hit .
This engine is 16.8.1 so it fills up the chamber a little to much