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.



  • Similar Content

  • Latest Posts

    • That ring thing is interesting how it's holding everything together 
    • Hey guys. I have a 400R on its way to Australia from Japan currently and have a few questions I’m hoping others may be able to help with.   Wondering if anyone here has had any luck getting the Sat nav unit to work in Australia!? Assuming the Stereo is as simple as a band expanded and tv won’t work?  Seeing as they’re based off a Q50 which is Aus delivered is there any way to link that system to the nav? Nav modules and head unit are different part numbers and appear slightly different at the rear with plug ins etc. can I put my xtrail sd card into the rv37 and will that convert the maps or update to Australian? Has anyone got any advice here?     also has anyone fitted the factory remote start and Security system once it’s landed in Australia? I put an enquirey to Nissan Japan in via a third party, and they suggested it needs a Nissan Japan dealers device to setup and couldn’t guarantee if one here could do it or not. They can supply and I can physically fit it but to setup I would need a dealers device. Any information here would be appreciated also. I’ve seen one here with it fitted already prior to leaving Japan at a dealer/inporter, so clearly passes compliance and works when fitted Japan and doesn’t need changing here.      also, does the tyre inflation sensors work here? Does anything change with them when the vehicle arrives? Where are they actually situated? I’ve read they have batteries and they need to changing at times and seems like resetting involves the nav system?    any help here would be appreciated and any other aust specific information to help would be great. Looking forward to see what the current generation skyline is like and eager to see how many of the gadgets can be utilised here.  Thanks in advance 
    • Do need to take it with a pinch of salt. One of the adapter failures, they clearly had setup issues with the flywheel.  One of the slipping ones I spoke to and it was pretty clear the throwout was riding, rather than fix, just swapped to a new clutch.    These clutches are being put in anything from 5k offroad 4x4 beaters, GR yaris, 500hp commodores to 1200hp barra monsters. Bound to be some issues in some of them when they are not a simple bolt in affair due to the changes in height.    There is a lot going on in this picture and unless I did the job myself no way to tell what really happened. 
    • I did this mod in 2019  You just have to modify the top bracket of the ABS/TC/Fuel Pump Control ECU so it sits more upright and closer to the back seat and run a good quality positive battery lead from the engine bay, the negative lead i just bolted down to the body in the boot.
    • Damn... Not the feedback I want to hear.
×
×
  • Create New...