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-   -   Spark Plug Heat Range (http://zr1.net/forum/showthread.php?t=5915)

XfireZ51 06-20-2008 07:29 PM

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.

We Gone 06-21-2008 10:20 AM

Re: Spark Plug Heat Range
 
Been running the same plugs (BKR7EIX) for about 6 months now, very happy with them.

XfireZ51 06-21-2008 12:56 PM

Re: Spark Plug Heat Range
 
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 02:45 PM

Re: Spark Plug Heat Range
 
Quote:

Originally Posted by XfireZ51
Is that on a stock or modded motor?

Stock...with headers & chip

XfireZ51 06-21-2008 03:38 PM

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.

We Gone 06-21-2008 05:43 PM

Re: Spark Plug Heat Range
 
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 03:55 PM

Re: Spark Plug Heat Range
 
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 04:09 PM

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?

flyin ryan 06-22-2008 04:52 PM

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.

jonszr1 06-22-2008 06:36 PM

Re: Spark Plug Heat Range
 
would .40 be better ? any thoughts on the E-3 plugs that are out now?


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