Nissan discontinued the B6ES Plugs for the 280Z's

[DatsunZsRule]

Well I'm getting all my parts to give my beautiful Z her spring Tune up and when I went to get all my stuff from Courtesy Nissan, They told me they would have to sell me the BP6ES which is used on the 240Z's and 260Z. since they are no longer stocking the B6ES.

Anyone on here running the BP6ES in there 280Z? I looked it up and the "P" stands for "Projected Insulator Type" and from what I've found searching last night is that it's a little hotter plug???

I'm thinking about going through NGK direct and getting the right ones. Courtesy claims it will work fine in the 280Z??? I don't know though. Nissan Motor Co. must have had there reasons for changing to B6ES Plugs in the 280Z?

Any opinions on this are welcome

[Stickerman]

Best guess is they switched because of fuel injection. The BP6ES was stock on the Roadsters, through the 260's, so there must be some reason.

[DatsunZsRule]

My thoughts exactly. I'm just going to order them through NGK direct. I'll just tell Courtesy to keep the order on all my other stuff, but scratch off the plugs. I'll go get the correct ones at NGK. :devious:

[76Datsun280z]

Sounds like a good plan. What all do you do to your Z for it's spring tune up?

[DatsunZsRule]

Well I just went ahead and got the correct B6ES plugs through NGK and told Courtesy Nissan to scratch off the plugs I'm a fussy S.O.B. when it comes to my Z

76Datsun280z, What all am I doing?

-Complete Oil & Filter change and inspecting all fluid levels

-Chassis Lube

-Checking air filter (I have a cone shape K&N so I will clean it if needed)

-Flush out cooling System and refilling with fresh clean coolant

-This spring I'm also changing my differential fluid. (Transmission I did last summer so thats fine)

-New Fuel Filter

-New PCV Valve

-All New Plugs & wires

-Cap & Rotor

-Check my tire pressure

And thats it so far :laugh:

[Carl Beck]

The extended tip plugs are designed to keep the tip of the plug {electrodes} farther into the flame ball in the combustion chambers - so that it helps prevent carbon fouling and provides a more uniform burn.

With the use of Fuel Injection and electronic ignitions - the extended tip was no longer required because the F.I. system provides a far more accurate fuel/air mixture, far more constantly and the E.I. provides a better spark anyway.

Nonetheless - there would be no harm runing either one in a 280Z. The "6" indicates the heat range of the plug - so other than keeping the electrodes in the tip hotter - there is no difference in the plugs ability to absorb and dissipate heat.

FWIW,

Carl B.

[DatsunZsRule]

Thanks for the info on the plugs Carl. Like you said though, they are not necessary in an EFI Z with E.I. which is why Nissan used the B6ES in the 280Z's. I just prefer to use the correct plug for my particular Z. It's good to know that there is an alternative though

[cratos]

NGKBPES spark plugs are anormal auto parts stock item I walk into my local auto parts stores and walk out with them.

Cratos

[sblake01]

NGKBPES spark plugs are anormal auto parts stock item I walk into my local auto parts stores and walk out with them.

Cratos

I hope you mean B6ES or you're missing the point of this thread.