Okay guys with the D16z6... whats the spark plug gap on the plugs?? also where do you guys get like 1 or 2º colder spark plugs at? thanks!


Mason

 

Are you asking what gap IS or what is the specified measurement?

If you want to know the measurement, your car's manual states it.

 

um i don't have a manual for my cylinder head i got a 91 hatch with mini-me so.... yeah... please tell me what the specified measurement is for gapping for the d16z6 spark plugs.

 

Next time I go down to my car I'll look at my VECI label and tell you what it says.

 

gap: 1.0-1.1 mm, (0.039-0.043 in.)

use NGK OEM plugs (#ZFR4F-11)

 

alright cool thanks for the gap... but i want to use 1 or 2º colder plugs cuz i'm going turbo and i want to decrease chances of detonation...

 

The NGK plugs are fine, what mods do you have? I set my Gap at .044. I run great and it gives me better performance.

 

well i'm on boost now..*hint* turbo. so someone said that if you get 1 or 2 degree colder plugs you have a way less chance of detenation.

 

do you have an upgraded ign system?this is a main key to making your motor less likely to detonate. also making your gap smaller is a key because it is harder for a spark to travel through highly compressed air(boost). the less space it has to travel to get to the other side, the easier it will travel there but on the contrair the spark has to be big enough to be sure to ignite atleast one gas molecule other wise you have a misfire and you start to run dirty.

 

Ok, if he says no to the upgraded ignition then I would tell you fork it up for a higher output coil, you really have to work with the gap when you do upgrades to your engine(especialy Turbo), pomanshoth is correct.
A "hot plug" has a long insulator nose which exposes more surface area to the combustion gases. This keeps the plug temperature higher overall which is perfect for stop-start city driving conditions.
"cold plug" has a shorter insulator nose, which minimizes the amount of surface area exposed to the combustion gases. Cold plugs are usualy used in racing conditions because it can transfer heat out of the cylinder chamber faster. Most turbo, supercharged and NOS applications use this type of plug because of the tremendous heat they generate. A colder plug can also minimize the risk of pre-ignition and detonation, however if the plug is to cold there is risk of fouling during extended periods of idling and low-speed operation.

Like I said befor if you want a nice set of cold plugs, upgrade your ignition, if you dont want to upgrade your ignition then go buy some DENSO plugs, DENSO Iridium spark plugs use on average 5,000 fewer volts to fire than normal plugs. They are not exactily expencive but they will save you money in the long run.....