Jump to content
SAU Community

Recommended Posts

  • Replies 103.8k
  • Created
  • Last Reply

Top Posters In This Topic

  • GTS-t VSPEC

    20904

  • Nizmo

    13582

  • SHUTO-BOY

    6636

  • skyzerr33

    5353

Originally posted by Micko

How does it work then - i was told to gap them to 0.7 which quite small.

Does this mean i will get a hotter, more intense spark?

What is the normal school of thought when you increase boost?

Gap to .7 or .8 mm cos most of the modern plugs gap to 1.1mm hence the 11 on the end of the plug number.

The large gap is what gives a bigger stronger spark because it makes the coil build up a larger voltage to fire the spark across the gap.

The trouble is with turbo engines running larger than stock boost will blow the spark out while it jumps the gap ( simplistic terminology ) hence the need for a smaller gap , which then gives a weaker spark and is the reason why splitfire or cdi type ignitors are reqd on BIG boost engines.

Got it ?

Cheers

Ken

Originally posted by Micko

I think he was annoyed with how you addressed his indescretions...a little more tact would have been appropriate

Nah stuff it, just walk over and deck him. Hehehe

Tell us first so we can set up seats and get the beer and chips out.:P

Cheers

Ken

Originally posted by gtrken

Gap to .7 or .8 mm cos most of the modern plugs gap to 1.1mm hence the 11 on the end of the plug number.

The large gap is what gives a bigger stronger spark because it makes the coil build up a larger voltage to fire the spark across the gap.

The trouble is with turbo engines running larger than stock boost will blow the spark out while it jumps the gap ( simplistic terminology ) hence the need for a smaller gap , which then gives a weaker spark and is the reason why splitfire or cdi type ignitors are reqd on BIG boost engines.

Got it ?

Cheers

Ken

Cylinder heat causes injector fuel to ignite before the spark flashes over :P

Originally posted by Micko

Thanks Ken - I had heard about the spark being 'blown' out.

Good work macka - blamed the wrong bloke...you are a tool (7/16 combination ring spanner if I recall):bahaha:

Maybe u should read more carefully,

I asked if he was the guy who hoons around my street picking up some girl he said yes

Im not going to change my driving habits because thats the way i drive and thats not going to change...

I accused no one

Originally posted by Micko

This plug talk is doing my head in...

So if I reduce the gap I should use a hotter plug to keep the actual spark the same?

Why do people go colder in most higher boost applications?

Colder plug means it will take heat , boost and thrashing better without melting or dropping the electrode off.

A hotter plug is used in colder conditions to aid starting or is used on a worn , oil consuming engine which would foul a colder plug.

Phucked with your head enough ??

Cheers

Ken

Originally posted by Micko

Anyway - who cares...

ZACHARY !!

I sure as shit don't sherlock.

Though if that spanker next door with the new loud exhaust on his rex goes belting down the street one more time....

Cheers

Ken

Originally posted by Micko

Right - almost done...

What this is telling me is that I should have gone to an NGK 8 (or stayed with a 7).

Micko , what plug exactly did Steve recommend.

I have checked my reference and Hendo told me to use

BCPR7ES -11 and gap them to .8mm

Cheers

Ken

PS I have and they work fine.

Guest
This topic is now closed to further replies.



  • Latest Posts

    • KW only offers a set for the R32 GTR. Popular options are D2 racing, Ksport or Öhlins. I have a D2 Racing coilover set, though I don't know for sure which one.
    • Well, the good news is you have more than one very good option for new coilovers in and around your country. Worth the drive over to KW to talk about GTR stuff.
    • Fair enough, I am in no way a tire expert so I'm not familiar with all the terms and conditions. I'll definitely note down the AD09 to potentially try in the future. Rain is not too big of a concern for now as I will probably only drive in the rain when I have to. And considering I still lack experience driving the GTR I'd more than likely take it easy too. I have coilovers in the car but as I barely got to drive so far I never bothered to even check if they are adjustable haha. The suspension is almost entirely old and worn as well so I suppose when I eventually fix that in the future that would make a huge difference.
    • There's not a great deal to report here .... except ...... FOR .... LSD!!!  I bought a Quaife LSD from the UK and shipped it here .... Wish I'd just bought locally cause the shipping and duty was $700! But there were so many diffs used in the E90s I just wanted to be absolutely certain I was getting the right one so I spoke with a supplier in the UK who builds race cars and they have heaps of experience with the E90s.  I pulled the diff out which was seriously awesome - I've never done anything like that before, I must have watched 1000 videos on YT about it as well as consulting the Bentley manual. It was super easy in the end. The diff was delivered to the awesome folks at Hornsby Diffs and will be back in a few weeks. I also replaced the diff bushings with some Nolathane ones.  Really looking forward to getting it back and getting back to the track or even the skidpan.
    • yeah... the 13kg/mm springs weren't always in there, I had 10kg/mm but doing a few SMSP commanded heavier front springs. It's so good now going into T1 and T2, just need more seat time and real tyres.
×
×
  • Create New...