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Jayzsun 08-03-2012 08:00 PM

Plugs for nitrous
Are those spark plugs the right one for the nitrous application?(One step colder)
NGK 4306 V Power LZTR5A-13


chefred112 08-03-2012 08:48 PM

I run them on mine so i concur...

Jayzsun 08-04-2012 05:16 AM

Thanks chefred112 !!! i have to change all the 16 plugs or just the primary ones?

CHVYKLR 08-04-2012 12:41 PM

change all the plugs

Jayzsun 08-04-2012 07:23 PM

Thanks CHVYKLR!!!

Jayzsun 08-04-2012 08:49 PM

NGK states that for a 100hp+ nitrous application,with resistor plugs i need 2 step colder...5306...lztr4a-11......someone have an opinion about that?

Jayzsun 08-10-2012 02:49 PM

Something weird i just realized...OEM plugs are:LZFR5C-11= OEM(92174)on the NGK parts finder,the 4306 plugs(one step colder) are LZTR5A-13....same heat range as OEM.....the 5306 plugs LZTR4A-11 are supposely 2 step colder...but if i'm right they are one step colder than OEM...can someone confirm or am i wrong?

Jayzsun 08-10-2012 02:55 PM

Oh.....i just find that i made a huge error....4 is hoter than 5........not the 4306 are like OEM...same heat range.

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