which spark plugs are good?

[Boi Ninja]

i couldnt go through with selling her (maybe not just yet anyway), so ive got new uprated poly bush bushes and new wishbones to be fitted ...mk3 cupra exhaust on order and now i was thinking about a lil service.

thing is what spark plugs would you recommend for everyday use? something better than the original ...seen some iridium ones ...basically i know nothing about spark plugs so any help would do?

 

[beezertart]

Knew you wouldn't do it til forced There was athread t'other day re plugs n think general consensus was NGK all the way,i is off to GSF tomorrow with my extensive list n not so extensive funding

 

[Fl@pper]

for me :

NGK - all the way for ANY motor i work with from 125cc bike through to twin turbo pinto's and 10litre V8 dragsters

Bosch - i have a personal hate for as they twice lost me a club racing title

Champion - quality issues suffered more than once before even fitting them so with bosch on that one

Nippon Denso - starting to get a good rep but not had chance to use any for any length yet

 

[myseatcupra]

for me :

NGK - all the way for ANY motor i work with from 125cc bike through to twin turbo pinto's and 10litre V8 dragsters

Bosch - i have a personal hate for as they twice lost me a club racing title

Champion - quality issues suffered more than once before even fitting them so with bosch on that one

Nippon Denso - starting to get a good rep but not had chance to use any for any length yet

i always thought bosch were good. but im no expert on plugs. what issus you had with them? you recon on my next service i should go for ngk plugs.

 

[rippa2k]

I got NGK in mine, by far the best!!

 

[myseatcupra]

I got NGK in mine, by far the best!!

why are they better. in what way

 

[rippa2k]

the bosch ones never seem to go in properly! might just be me, but they always seem to be too tight to put in, and they never seem to last as long as th NGK ones

 

[AlpineWhite]

I've used Bosch plugs on a few different cars and never had a problem with them. That said, I'd be just as happy using NGK.

 

[Fl@pper]

choice mainly from racing had 3 different engined cars (1 bike engined) simply start misfiring when under severe stress - racing heats over 6 laps was nightmare for any type of Bosch

for some reason they hated REAL hard work but swapped to ngk same heat range and bang on all day long never missed a beat

Dragster is a 9.9L v8 running 3 stages of gas and wont use anything but in that saying that Bosch just dont have enough range choice to suit it either which doesnt help but wouldnt risk using bosch in it - they go bang a lot louder/more expensive than a 4 pot

NGK all the way though here

 

[Mckellar]

NGK irridium copper tip.

poifect (in a mafia don voice...)

 

[Boi Ninja]

NGK irridium copper tip.

poifect (in a mafia don voice...)

hmm bosch ones are like £10

NGK ones are £15

and NGK iridium ones are £25 ...i dont mine paying £25, but is it worth it?

 

[Fl@pper]

NGK iridium ones are £25 ...i dont mine paying £25, but is it worth it?

the iridium is related to the tip material and its ability to withstand wear so overall you get more miles per £££ so to speak - some are said to last 60k miles with platinum more like 40k miles and copper about 20k miles

more precious metals are usually also using special designed tips that also enable a better spark zone

the more modified a motor though the quicker they tend to wear out

 

[R French]

What I have used in competition on 2.0 16v:
Bosch Platinum - Nasty
Denso Platinum - Not bad (Only 2 events so hard to say)
Champion Platinum - Rubbish
Bosch Std - OK
Champion Std- OK
NGK Std + a few degrees for hotter running - fantastic.

GSF and EURO parts will try and sell you Platinum or Irridium plugs. These are not necessary as the ignition system is not capable of generating enough power from the single coil 8 or 16v. You will be much better off trying a standard NGK plug correctly gapped then or maybe 1 higher than std if you thrash the hell out your car. I've tried this on a RR and the standard pugs work best with the single coil ignition system. You will never see the benefit unless you change for a coil per cylinder type system. You also save a ton of cash.

Hope this helps.

 

[Grayboy]

What I have used in competition on 2.0 16v:
Bosch Platinum - Nasty
Denso Platinum - Not bad (Only 2 events so hard to say)
Champion Platinum - Rubbish
Bosch Std - OK
Champion Std- OK
NGK Std + a few degrees for hotter running - fantastic.

GSF and EURO parts will try and sell you Platinum or Irridium plugs. These are not necessary as the ignition system is not capable of generating enough power from the single coil 8 or 16v. You will be much better off trying a standard NGK plug correctly gapped then or maybe 1 higher than std if you thrash the hell out your car. I've tried this on a RR and the standard pugs work best with the single coil ignition system. You will never see the benefit unless you change for a coil per cylinder type system. You also save a ton of cash.

Hope this helps.

Can't agree more I'm on the third set of STD NGK 3 prongs from the stealers over my 2 16V's, overall I've had 5 sets of plugs 3 std which feel right 1 Splitfire OK, 1 Bosch Terrible got rid within 500 miles!

Never had them in a seriously tuned lump but running Chip, exhaust & Induction they are spot on!