Jump to content
SAU Community

JJR Coil Packs Vs Oem Vs Splitfire Vs Other

4drftn

By 4drftn,
in R Series (R30, R31, R32, R33, R34)

 Share

Recommended Posts

Galois Veteran

Galois

Posted
Posted

My understanding is that it's the basic advice for most cars. Have a gander at the spark plugs thread, it's pretty long but there are a lot of testimonials. As I said, everyone's experience seems to vary. But most seem to think that coppers are the way to go and though they may last longer changing them every 5000km is safe. Just doing it with an oil change. It's not hard to do with a bit of practice, gives you some regular feedback as to how the car is running and how each cylinder compares to the others.

Most importantly, if you use coppers and change every 5000km the ignition system works, and does so at it's best. So even though some people get hundreds of thousands of kms out of some cheap platinums, and some people get only a few thou km out of high priced iridiums, coppers every 5000km works.

What plugs are you using george?

  • Replies 426
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

MBS206
MBS206

Hey guys, I run a set of the yellow jacket coil packs that Performance Wise offers. To set the scene, picture an RB30 block, built to "nissan spec" (Now, I use this term loosely, as the whole motor

performance-wise
performance-wise

Not true for Yellow Jackets. We tested the YJs thoroughly before releasing them to the market. Not just in the factory, but on the street and the track, in real life circumstances. Im still in contact

performance-wise
performance-wise

This is an outdated statement as everything is made in China these days. My Yellow Jackets are made in china and I oversee QC and work closely with my factory and now, 5 years later, and over 2000 se

Posted Images

Galois Veteran

Galois

Posted
Posted

General rule is run as bit as you can. Bigger gap means a more aggressive spark directly igniting more fuel. You might need to experiment, though someone on here might have better advice.

Note though, the more boost you run the harder it is to cross the spark plug gap.

Munkyb0y Grand Master

Munkyb0y

Posted
Posted (edited)

yeah, if they missfire, just reduce the gap by 0.1mm each time until there's no missfire. then you know for next time.

i was running 1.1mm on 14psi with new yellow jackets. no problem.

Edited by Munkyb0y
Mayuri Krab Grand Master

Mayuri Krab

Posted
Posted

What plugs are you using george?

In true noob fashion I don't actually know... :whistling:

They were put in by the workshop when I got my car tuned. They mentioned that the old ones where starting to show signs of wearing out & could cause problems with the boosted power levels later on.

I didn't mind seeing they just charged me according to my original quoted price & what ever they put it, it have being holding well for ~20,000kms.

  • 2 months later...
blk94r33 Mentor

blk94r33

Posted
Posted

So guys what's the general consensus on the yellow jackets now? Still running ok? I'm in need of new coil packs...

+1 for Yellowjackets

Had mine in for ~8months and 20,000km now after the old ones started to die. NGK Platinum plugs gapped to 1.1mm, no woes, now running 5psi and still good. smile.gif

Galois Veteran

Galois

Posted
Posted

So guys what's the general consensus on the yellow jackets now? Still running ok? I'm in need of new coil packs...

got a set in my r32 gtr, no probs running 1.1mm spark plug gap @ 18psi boost :)

Still going strong for me.

Mine are still all good :)

Had my YJs in my daily for over 2 years now and they're still going strong.

+1 for Yellowjackets

Had mine in for ~8months and 20,000km now after the old ones started to die. NGK Platinum plugs gapped to 1.1mm, no woes, now running 5psi and still good. smile.gif

That's the most direct and convincing question-answer sequence I've ever seen hahaha

Birds Grand Master

Birds

Posted
Posted

lol well if you want to break the answers up, I did have a problem with one YJ coilpack after about 20,000km...but PW replaced it for me...then another went after that and they replaced that for me. Haven't had issues since. That's the kind of after sales service that puts my mind to rest when considering products. Would I buy them again? Yup.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • RP1421
      S15 Spec R

      By RP1421 · Posted

      A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
    • Murray_Calavera
      WTAC 2025

      By Murray_Calavera · Posted

      Yeah mate, never miss it.
    • Ozdavroz
      WTAC 2025

      By Ozdavroz · Posted

      Any going to watch World Time Attack at SMSP this year?
    • Jarsky
      R33 Fuel Pump & Brakes after alarm swap

      By Jarsky · Posted

      Appreciate the correction on the "ground", that will make a huge difference to looking at this. That makes complete sense about AF70/AF71 which is what I had come down to being the issue, one of these. I'll have another look in the ignition wiring when I get a chance next week. I'll also make up a jumper wire for running that AF73 test.  ECU is fine, relay itself is fine, pump harness is fine and the pump itself is fine. I am going to upgrade the Walbro 255 anyway with a DW300 I have since I need to replace the fuel sender and I'm going to upgrade the FPR with my chasebays kit ready for new plenum/injectors/dbw, but I'll get this working first. That's why this is so frustrating. 
    • zillah
      Recommendation for engine oil funnel spill free

      By zillah · Posted

      hahaha good on
×
×
  • Create New...