rb25 spark plugs - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

MCPcoupe · 02-06-2013, 07:44 AM

What spark plugs and gap are you running in your rb25 and what gap?
Anything over half throttle I seem to be having blowout. If I peddle it and keep it at half throttle it spools fine. But if I mash the gass it bogs

funktown240 · 02-06-2013, 01:22 PM

NGK BKR6E stock #6962 gapped to .028 is what you should be running with stock turbo.

MCPcoupe · 02-06-2013, 03:44 PM

Quote:

Originally Posted by funktown240

NGK BKR6E stock #6962 gapped to .028 is what you should be running with stock turbo.

I just got the bkr7es will these work at a bigger gap?

funktown240 · 02-06-2013, 03:56 PM

They will work, I think they are standard electrode. If you are blowing spark, you should close the gap lower. I wouldn't gap any higher than .030

MCPcoupe · 02-06-2013, 04:09 PM

I'm gonna play with the gaps tomarrow at school. Thanks!

thisisnotphil1 · 02-06-2013, 09:47 PM

It sounds more like a coil pack issue. Not saying its not the plugs. My rb did the same exact thing. I bought plugs, turned out to be the coils

mantas · 02-06-2013, 10:11 PM

Quote:

Originally Posted by thisisnotphil1

It sounds more like a coil pack issue. Not saying its not the plugs. My rb did the same exact thing. I bought plugs, turned out to be the coils

+1 on this. Went through 2 sets of coils gave up and got some ls7 coils. Easy to wire and got rid of the infamous cyl6 rb25 misfire. As for the plugs i use oem rb25 ngk pfr5g-11. My buddy at the nissan dealer found the oem plugs for me all the other ones gave me issues. And they come pre gaped.

MCPcoupe · 02-07-2013, 04:31 AM

Yea I guess the coils will be next. When I pulled them they looked fresh though. ( no arc marks or anything). But I guess you never know

02-06-2013, 07:44 AM	#1
MCPcoupe Join Date: Jan 2013 Location: florida Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	rb25 spark plugs What spark plugs and gap are you running in your rb25 and what gap? Anything over half throttle I seem to be having blowout. If I peddle it and keep it at half throttle it spools fine. But if I mash the gass it bogs

02-06-2013, 01:22 PM	#2
funktown240 Zilvia Member Join Date: Mar 2012 Location: Ft. Worth Age: 41 Posts: 258 Trader Rating: (10) Feedback Score: 10 reviews	NGK BKR6E stock #6962 gapped to .028 is what you should be running with stock turbo.

02-06-2013, 03:56 PM	#4
funktown240 Zilvia Member Join Date: Mar 2012 Location: Ft. Worth Age: 41 Posts: 258 Trader Rating: (10) Feedback Score: 10 reviews	They will work, I think they are standard electrode. If you are blowing spark, you should close the gap lower. I wouldn't gap any higher than .030

02-06-2013, 04:09 PM	#5
MCPcoupe Join Date: Jan 2013 Location: florida Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	I'm gonna play with the gaps tomarrow at school. Thanks!

02-06-2013, 09:47 PM	#6
thisisnotphil1 Leaky Injector Join Date: May 2008 Location: aberdeen Age: 36 Posts: 59 Trader Rating: (0) Feedback Score: 0 reviews	It sounds more like a coil pack issue. Not saying its not the plugs. My rb did the same exact thing. I bought plugs, turned out to be the coils

02-07-2013, 04:31 AM	#8
MCPcoupe Join Date: Jan 2013 Location: florida Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	Yea I guess the coils will be next. When I pulled them they looked fresh though. ( no arc marks or anything). But I guess you never know