Spark Plugs R34 Gtr

[cpark]

Hi everyone

About to replace spark plugs on R34 GTR.

Car is pretty much stock so was just looking to replace with the stock plugs (I.e. NGK PFR6A-11) but also came across Bosch (8153-6).

Anyone here ever run the Bosch 8153-6 plugs as they are about half the cost of the NGK's?

Thanks

[niZmO_Man]

BCPR6ES, change every second or third service.

Not sure if the R34 RB26 would take a different spark plug compared to the older RB26s, seems dumb it would.

[tridentt150v]

If they are listed as a direct replacement then they will be fine. Should be a reference chart on the web somewhere that will tell you.

Yep, try this one:

http://www.angelfire.com/extreme4/skidoolympique/SPARK_PLUG_CROSS_REFERENCE.htm

Says Bosch equivalent is FR8DCX

See line 1257

[Dose Pipe Sutututu]

BCPR6ES call it a day at $3.95 each

[tridentt150v]

^^^ yep exactly, why ever change??

[No Crust Racing]

That's all that's in mine Chris, I plan to just swap them out every service or 2 given how cheap and easy to get they are.

No misfire issues with spitfires and those plugs at 330or so rwkw.

For a street car they'll be fine.

[cpark]

If they are listed as a direct replacement then they will be fine. Should be a reference chart on the web somewhere that will tell you.

Yep, try this one:

http://www.angelfire.com/extreme4/skidoolympique/SPARK_PLUG_CROSS_REFERENCE.htm

Says Bosch equivalent is FR8DCX

See line 1257

Strange it comes up with FR8DCX. This was the Bosch catalogue page at Supercheap Auto.

The package for 8153-6 also shows FR6KPP33X+

Not interested in going copper plugs but thanks.

[Dose Pipe Sutututu]

Your prerogative, but I personally wouldn't get those plugs...

[No Crust Racing]

I don't have any experience with the Bosch plugs, I do have NGK Iridium in the track car though and they've been fine.

[jiffo]

For me it's coppers every time.

I bought mine from here, about $3.00 a shot. Add some filters to the order to reach $50 and it's free delivery.

https://www.sparesbox.com.au/spark-plugs-ignition

But whatever plug you choose, check the protrusion from the head. Give the spring in the coil pack a bit of a tug to make sure it contacts the conductor.

ISO dimension plugs are a bit shorter than "normal".

[tridentt150v]

I had iridiums, threw them in the bin, I don't think they liked the WMI much. Always had coppers since then..........had no issues.

[cpark]

Hmmm sounds like the coppers are the way to go. Maybe I'll be a convert. Just out of interest, should I just stick with the stock plug gap of 1.1 and heat range of 6? Car is fairly stock with cat back, boost restrictor removed (running 1 bar) and arc induction box.

[Dose Pipe Sutututu]

just get no -11

means they're pre-gapped to 0.8mm

[jiffo]

That's right and another reason to buy coppers as with any of the exotics, (platinum, iridium) it's not recommended to alter the pre-set gap.

[admS15]

Thread hijack. For a 33 gtst with 250rwkw that does a bit of track work would you guys go 6's or 7's?

[No Crust Racing]

7s.

[tridentt150v]

I have 7's

[admS15]

I was using 7's but fouled a set after only a few k. Probably due to letting the car idle too long with the ac on during the summer. I've recently been running 6's and changing to 7's when tracking. I'll go back to 7's and see what happens. CBF changing plugs all the time.

[admS15]

6's wouldn't be a good idea for track work, would they?

[Dose Pipe Sutututu]

7s are good for 98RON with that power level/boost

6s for E85 with that power level/boost