Is it advisable to run NGK ZFR6G-11 plugs on a 12.5CR ITR? I can't get NGK PFR6G-11 over here.


Modified by garyc17 at 12:13 AM 4/28/2007

 

Anyone can help?

 

I'd recommend a colder plug such as the 7's. Thats what I use on my 12.5:1 CR.

 

I am running on a NGK Iriways 7. I have not replaced them for awhile. Should I even bother trying a 6 plug? Will it just ping or cause other serious damage?

 

Run a 7 heatrange.

 

Okay, I guess I have to hunt for a 7 heat range plug then.

 

i'd also run something like iridium or plain copper, rather than platinum.

 

What would be the worse outcome of using a number 6 plug on a 12.5CR engine?


Modified by garyc17 at 4:35 AM 5/1/2007

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by garyc17 &raquo;</TD></TR><TR><TD CLASS="quote">What would be the worse outcome of using a number 6 plug on a 12.5CR engine?</TD></TR></TABLE>

You will not be able to run as much ignition timing.

You will be more prone to detonation under load.

You will not make as much power.

 

Guess the hunt begins for my 7 plugs. What would be the Denso equivalents to NGK BKR7E-11 plugs?

 

Probably K22PR-U

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by garyc17 &raquo;</TD></TR><TR><TD CLASS="quote">Guess the hunt begins for my 7 plugs. What would be the Denso equivalents to NGK BKR7E-11 plugs?</TD></TR></TABLE>

Whats wrong with NGK plugs?

 

Yep i say 7'S with that much compr.

 

There's nothing wrong with NGKs. I can't get them over here. Considering Denso as an alternative.

 

where is here? I wouldnt mind sending a couple boxes to you. the are $15 a box my cost 1 box has 10 plugs in it.

and yes. i use bkr7e11 in my motors. 1283 is the NGK number. everytime i go to my local parts store, its like french fries, i get a box with every order. too cheap not to change. and every race weekend is a box of plugs

 

Dude, I'm still awaiting your shipping quote.

 

sorry man, i've been over my head with work and racing here didnt want to get anything else started. I'm good to go now though. whats your postal code again?