Hi guys the rx has flooded 2 times think it was due to ecu. Anyways took out the plugs and there shot. The ones that come out say bur9eq with t under that are these stock or uprated. As i may as well put uprated ones in what are the ones to go for??
As far as im awear, uprated ones are not really neaded unless you have a hefty increase in boost. Keep on with the NGK coppers your using would be my advice. You could always use the platinum coated ones reccomended for the 13bRew (BUR9EQP) as they will fit and work fine, just supposed to last longer really.
i thought stock used bur7eq?
The correct plugs are BUR9EQP, usually used all round, the plugs you have above with the \'T\' on them mean they are the trailing plugs not the leading plugs (there are 2 leading plugs and 2 trailing plugs) its common just to swap the whole lot out for the BUR9EQs
http://www.mazdarotaryparts.com/bset-of-4-ngk-bur9eqp-spark-plugs-for-rx-7-turbo-iib-1073-p.asp
You would only need to upgrade to heats 10,10.5 or 11 if you are running some serious boost/power, ive run the above plugs since owning the car and not had any issues.
That would explain a few pross as all 4 have t on.
Ill just get a new.set as there old anyways and as soon as i cleaned.up the old.one worked.fine.
Ill just get a stock set from Mazda.
Thanks guys