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Burning A Set Of Plugs Every 8 Months To A Year?

gts-4 dreamer

By gts-4 dreamer,
in Engines & Forced Induction

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gts-4 dreamer Mentor

gts-4 dreamer

Posted
Posted

I've put iridiums in etc and it keeps fouling them, it's always the same, starts getting hesitation up over 4k revs on load. revs just fine to redline when not loaded up.

have used standard gaps to begin with, only the usual issues. went .8 gap they lasted an extra couple of months. last time went one heat range colder and gaped to .8, last longer but now it's happening again. basically I get a year out of iridiums. Should I just buy copper and keep replacing them ? is that normal wear on them? I was under the impression they should last allot longer.

gts-4 dreamer Mentor

gts-4 dreamer

Posted
  • Author
Posted

I was thinking that there was something maybe wrong with my tune? they are supposed to last for 100$ or is that just bs? I thought fouling plugs every 20$k was what you would expect from copper or if something was fuged in the tune?

blind_elk Grand Master

blind_elk

Posted
Posted

So what was the heat range of the last set of plugs you fitted?

What mods do you have that might affect the heat range requirement of the plugs? If they are fouling, maybe the injectors are delivering too much fuel. Or maybe the timing is inappropriate to support any mods you have.

gts-4 dreamer Mentor

gts-4 dreamer

Posted
  • Author
Posted

The last set was one heat range colder but they showed slight signs of burning to hot for the plugs, slightly white so ill get a set of copper in the original heat range again.

baseline: it's all working cept a slight leak in the steering rack but that's not a massive performance issue >:rofl: replaced timing belt, replaced cam gears to "easily adjustable".

mods: usual "stage 1" engy mods.

fmic, 3" straight through exhuast. 2530 hair dryer. fuel pump was replaced with intank bosch outa fear, greddy ult to fool with the sensors. she could probably do allot better with a replacement ecu but not 1500 better so thats it.

SLIPPERY Experienced

SLIPPERY

Posted
Posted

i need to replace mine after a week if i move the car from the garage to the lawn to wash the thing haha....3 months out of a set of plugs is good for me and if copper plugs are good for close to 500atw then i cant complain for $30 a set

Brezza Proficient

Brezza

Posted
Posted

just like everyone says platinum plugs are a waste of $$

coppers are fine, and because they're cheap most people just replace them if they get fouled.

i replaced mine after a year, they weren't in too bad condition but i was doing coil packs and just decided to replace the plugs too because its just so cheap.

Harey Veteran

Harey

Posted
Posted
I do mine with oil every 5000km. You could also look at bosch plats, ~$40 for 6 from repco, they go pretty well. Not sure how long they last, prob not much longer than the coppers...

Thats pretty keen changing them every 5,000km on a stock car!

Galois Veteran

Galois

Posted
Posted
Thats pretty keen changing them every 5,000km on a stock car!

Finally got new coilpacks 2 weeks ago so I'll see how long they last. Car is pretty stock, tho i wrote "stock" a long time ago, before I realised that 14psi is not stock boost. The car's history is unknown lol.

Heaps of people on here just change plugs with oil to keep the car fresh and avoid misfires.

gotRICE? Veteran

gotRICE?

Posted
Posted
I do mine with oil every 5000km. You could also look at bosch plats, ~$40 for 6 from repco, they go pretty well. Not sure how long they last, prob not much longer than the coppers...

I do that too. Keeps it all fresh :D Only takes 30 mins or so extra. I just do it while its draining haha.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted
Hence the reason you don't waste money on platinums and iridums in our cars. Waste of money as you never get the mileage out of them compared to using them on a normal car.

+1

Been saying it for years, even the Spark Plug 101 thread covers this off...

Yet people still waste money on iridi/plati :D

Probably not helped by a shit tune or poor plug heat selection though as a side point.

Either way go back to the normal coppers

blind_elk Grand Master

blind_elk

Posted
Posted
The last set was one heat range colder but they showed slight signs of burning to hot for the plugs, slightly white so ill get a set of copper in the original heat range again.

what bloody heat range were they (other than "cloder than previous")???????? moreover, which actual model of plug were they?

PM-R33 Grand Master

PM-R33

Posted
Posted
+1

Been saying it for years, even the Spark Plug 101 thread covers this off...

Yet people still waste money on iridi/plati :D

Probably not helped by a shit tune or poor plug heat selection though as a side point.

Either way go back to the normal coppers

Yeah I feel like I keep constantly telling it to people as well.

blind_elk Grand Master

blind_elk

Posted
Posted

never had a problem with plat / iri plugs, except for a recent intermittent misfire that fouled one. turned out to be a faulty (splitfire) coil, but i fitted a set of coppers while diagnosing the problem.

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