I was reading online, and I found that someone said you could use this spark plug for the b18c1 gsr motor. I wasn't sure,and wanted to ask if anyone used these or knew they work ?

NGK ZFR7F11 copper spark plugs

Also, how much of a gain do you see with these plugs ?

 

Not too sure about those specific plugs. But as for the gains... not much I would say. I put Bosch Platnium 4's in mine and the others looked like there were right from the factory, so it was a good improvement. However I didn't notice any big performance increase. Maybe 1 or 2 hp... if any.

What I noticed is the responce time. From pedal down to wheels turning time I mean. The old ones were a bit more sluggish, overall it just seemed things were more defined and crisp. But it had pretty much the same amount of power, it seemed, as before.

 

Your OEM plugs should be NGK coppers. Yes, they work fine. Platinum is a poor conductor and is more suited for longevity. Just run NGK coppers, and change them when they need to be changed.

 

Yeah, you'll make the most power with NGK coppers', but have to change them more often.

 

BKR6E is the part # for the stock heat range, in a copper plug. You might have to change them a little more often, but hey they are only $2 a plug.

 

is that the stock # for the gs, or gsr ?

 

It's the same for both.

 

Pep Boys carries NGK. Autozone doesn't.