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Re: Spark plugs

Posted: Tue Jan 27, 2015 11:47 am
by Knox
On thermostat housing. We are using k20 coils.

Spunkster wrote:Where do you have the CPR harness grounded?

Re: Spark plugs

Posted: Tue Jan 27, 2015 11:50 am
by Spunkster
what about the ground for the CPR harness inside the vehicle?

Re: Spark plugs

Posted: Sat Jan 31, 2015 1:22 am
by Knox
I check it yesterday night. Gorund at a23, igntion power at a24, icm at a22 and altc at a16. I did the troubleshooting also every step is ok. Traction control wirings is also wired to a23 and a25 does it cause to this ?


Spunkster wrote:what about the ground for the CPR harness inside the vehicle?

Re: Spark plugs

Posted: Mon Feb 02, 2015 12:44 pm
by Spunkster
Can you start your own thread in the CPR section of the forum: http://www.hondata.com/forum/viewforum.php?f=32

Re: Spark plugs

Posted: Sun Aug 06, 2017 6:01 pm
by Bauceman
I'm not sure which plugs were installed in my car but I did end up burning a small hole in the mother board of my P72 ecu, is it possible the electrical surge that is sent back from a non resistor plug could cause that? I read earlier in the thread that non-resistors can cause idling problems which is something I'm experiencing now.

Re: Spark plugs

Posted: Mon Aug 07, 2017 9:27 am
by Spunkster
Post a picture of the burned ECU.

Re: Spark plugs

Posted: Thu Aug 10, 2017 4:00 pm
by Bauceman
I don't have a picture of it but I checked my plugs (same ever since I swapped the engine) and they are a resistor type.

Re: Spark plugs

Posted: Sun Oct 30, 2022 11:22 pm
by Ichiro718
So i purchased these for my turbo b series build. Not chasing big power like 300-325 or so. Would these plugs be too cold, or they are ok?

NGK 4644 V-Power Spark Plug - BKR7E, 4 Pack https://a.co/d/6TXxxJq

Re: Spark plugs

Posted: Mon Oct 31, 2022 10:20 am
by Spunkster
You should discuss the plugs used with your engine builder or tuner or both.

Re: Spark plugs

Posted: Mon Oct 31, 2022 10:46 am
by Ichiro718
That's me and me๐Ÿ˜† guess i better look at how boost affects spark plugs

Re: Spark plugs

Posted: Fri Nov 04, 2022 4:23 am
by DaX
Ichiro718 wrote: โ†‘Mon Oct 31, 2022 10:46 am That's me and me๐Ÿ˜† guess i better look at how boost affects spark plugs
I'm a big fan of using BKR7E's in turbocharged Hondas making power in the range you're looking for. I think you're on the right path.

Re: Spark plugs

Posted: Tue Nov 08, 2022 4:23 pm
by Ichiro718
Yep with all the research i did, it seems these plugs are the plugs to go to . I'm wondering what gap will be fine. I wrote down all the gaps and i believe they are at .031 thousandths and i think I'm going to start at .025 clearance and see how it's looking.

Re: Spark plugs

Posted: Wed Nov 09, 2022 5:06 am
by DaX
Ichiro718 wrote: โ†‘Tue Nov 08, 2022 4:23 pm Yep with all the research i did, it seems these plugs are the plugs to go to . I'm wondering what gap will be fine. I wrote down all the gaps and i believe they are at .031 thousandths and i think I'm going to start at .025 clearance and see how it's looking.
That's a decent starting point. I have mine at 0.020".

Re: Spark plugs

Posted: Sat Nov 12, 2022 9:01 pm
by Ichiro718
Ayeee, so is that where you ended up? If you can explain your method of processing and execution please๐Ÿ˜

Re: Spark plugs

Posted: Sun Nov 13, 2022 8:47 am
by DaX
If you start breaking up as boost comes up, you can try tightening your gap, as it may be blowing out the spark.