Spark Plug Heat Range - Page 4 - ZR-1 Net Registry Forums

XfireZ51 · 06-20-2008

Well I installed the BKR7E and right from the key on and idle I could tell something was different. Gapped at .050". Idle was way smoother. I have a Fidanza in the car, and the "box of rocks" was not to be heard or barely. I have pulled one plug to check heat range, and it actually looks as if I could go one step colder. Any thoughts on that? One of the gurus on 3rd Gen would say just give the motor what it wants.

We Gone · 06-21-2008

Been running the same plugs (BKR7EIX) for about 6 months now, very happy with them.

XfireZ51 · 06-21-2008

Quote:

Originally Posted by We Gone

Been running the same plugs (BKR7EIX) for about 6 months now, very happy with them.

Is that on a stock or modded motor?

We Gone · 06-21-2008

Quote:

Originally Posted by XfireZ51

Is that on a stock or modded motor?

Stock...with headers & chip

XfireZ51 · 06-21-2008

Should have asked this earlier, but what gap? Of course, yours are the Iridiums so that could make a diff.

We Gone · 06-21-2008

Quote:

Originally Posted by XfireZ51

Should have asked this earlier, but what gap? Of course, yours are the Iridiums so that could make a diff.

.035

flyin ryan · 06-22-2008

Quote:

Originally Posted by XfireZ51

Well I installed the BKR7E and right from the key on and idle I could tell something was different. Gapped at .050". Idle was way smoother. I have a Fidanza in the car, and the "box of rocks" was not to be heard or barely. I have pulled one plug to check heat range, and it actually looks as if I could go one step colder. Any thoughts on that? One of the gurus on 3rd Gen would say just give the motor what it wants.

no chance i'd go colder, 7's are pretty cold already. your happy with it now, let it be. how are you checking the plugs anyways? if you've idled around for any amount of time at all you know your readings will be in-accurate, right?

XfireZ51 · 06-22-2008

FR,

I have pulled the plugs after doing a scan that included WOT run and driving around to read various points on the VE table. Looking to read ground strap, which now shows a line much closer to arc of ground strap.
I'm running .050" gap. Any comments on that?

flyin ryan · 06-22-2008

were you looking at the plugs after a WOT/clean shut off run? i'm not sure what your looking for in heat in the ground strap but it sound about perfect right now for me. i'd go away from the .050" stuff myself. if you want to pursue the larger gaps your better off to clip the ground strap back & side gap. NGK iridium plugs actually come with the groung strap cut back a tiny bit.

jonszr1 · 06-22-2008

would .40 be better ? any thoughts on the E-3 plugs that are out now?

06-20-2008	#31
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,686	Re: Spark Plug Heat Range Well I installed the BKR7E and right from the key on and idle I could tell something was different. Gapped at .050". Idle was way smoother. I have a Fidanza in the car, and the "box of rocks" was not to be heard or barely. I have pulled one plug to check heat range, and it actually looks as if I could go one step colder. Any thoughts on that? One of the gurus on 3rd Gen would say just give the motor what it wants.

06-21-2008	#32
We Gone Join Date: Apr 2004 Location: Atlanta, GA Posts: 2,170	Re: Spark Plug Heat Range Been running the same plugs (BKR7EIX) for about 6 months now, very happy with them.

06-21-2008	#35
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,686	Re: Spark Plug Heat Range Should have asked this earlier, but what gap? Of course, yours are the Iridiums so that could make a diff.

06-22-2008	#38
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,686	Re: Spark Plug Heat Range FR, I have pulled the plugs after doing a scan that included WOT run and driving around to read various points on the VE table. Looking to read ground strap, which now shows a line much closer to arc of ground strap. I'm running .050" gap. Any comments on that?

06-22-2008	#39
flyin ryan Join Date: Aug 2006 Location: Edmonton, Alberta or Phoenix, Arizona Posts: 2,736	Re: Spark Plug Heat Range were you looking at the plugs after a WOT/clean shut off run? i'm not sure what your looking for in heat in the ground strap but it sound about perfect right now for me. i'd go away from the .050" stuff myself. if you want to pursue the larger gaps your better off to clip the ground strap back & side gap. NGK iridium plugs actually come with the groung strap cut back a tiny bit.

06-22-2008	#40
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,406	Re: Spark Plug Heat Range would .40 be better ? any thoughts on the E-3 plugs that are out now?