Jump to content
SAU Community

Dodgy Coilpacks?

MAT00

By MAT00,
in Engines & Forced Induction

 Share

Recommended Posts

Proximity Motorsport Experienced

Proximity Motorsport

Posted
Posted

befor u go and pay $500-$600 for coilpacks, get some heat temp proof silicone and fill in the gaps on your coilpacks so it cant earth out on head instead of on plug. Search coilpack budget mods, you might find pictures.

Link to comment
https://www.sau.com.au/forums/topic/266127-dodgy-coilpacks/#findComment-4543001
Share on other sites
chuckie Mentor

chuckie

Posted
Posted
Hey everyone!!

My brothers R34Gt-t is misfiring when ever you put the foot down a bit. Its fine when hes driving soft, but misfires bad when he tries to go hard. We've already changed the spark plugs and think now that it may be the coilpacks???

Any ideas???

(i did search but didn't find much...)

Thanks

Hi MATthere is lot`s on this may be you didn`t have much Searchluck it is hard some time`s :thumbsup: ,better luck next time,cheer`s chuckie .
Link to comment
https://www.sau.com.au/forums/topic/266127-dodgy-coilpacks/#findComment-4543654
Share on other sites
Checkbuzz Rising Star

Checkbuzz

Posted
Posted

What gap are the new plugs he's using? and what boost is being run?

The issue sounds like coil packs (very common at higher boost levels) but the problem often can be reduced or eliminated by using plugs with a smaller 0.8mm gap (or less depending on boost) as opposed to the std 1.1mm gap.

This worked for me and the insulation of the coil packs didn't, I still have a slight miss and are currently waiting for JJR coils to be back in stock for the R33 S2.

Also Splitfires are great but they are $600+, Super Sparks can be had for $500, JJR have coil packs for $400 (1yr warranty) that do the same job and there are some Yellow Jackets just come on the market for $350 a set (6 month warranty). For my money I'm going for the JJRs - same warranty and result as Splitfires.

Link to comment
https://www.sau.com.au/forums/topic/266127-dodgy-coilpacks/#findComment-4553483
Share on other sites
HEKT1K Grand Master

HEKT1K

Posted
Posted

does it hesitate coming onto boost? i had a similar issue, also had a dodgy idle, turned out to just be a vac leak. pulled out my coils and they looked brand new!! so just be sure to check everything before spending a few hundred on coils :)

Link to comment
https://www.sau.com.au/forums/topic/266127-dodgy-coilpacks/#findComment-4554183
Share on other sites
  • 2 weeks later...
d_liberate Collaborator

d_liberate

Posted
Posted
What gap are the new plugs he's using? and what boost is being run?

The issue sounds like coil packs (very common at higher boost levels) but the problem often can be reduced or eliminated by using plugs with a smaller 0.8mm gap (or less depending on boost) as opposed to the std 1.1mm gap.

This worked for me and the insulation of the coil packs didn't, I still have a slight miss and are currently waiting for JJR coils to be back in stock for the R33 S2.

Also Splitfires are great but they are $600+, Super Sparks can be had for $500, JJR have coil packs for $400 (1yr warranty) that do the same job and there are some Yellow Jackets just come on the market for $350 a set (6 month warranty). For my money I'm going for the JJRs - same warranty and result as Splitfires.

Ive had a set of yellow jackets in my GTST for around 3 months now and they have never missed a beat. They actually come with a 12 month warranty too. Theres a group buy for them here on SAU and they are only $320. So cheaper than JJR, same results as Splitfire and same waranty.

Link to comment
https://www.sau.com.au/forums/topic/266127-dodgy-coilpacks/#findComment-4578373
Share on other sites
Darius Explorer

Darius

Posted
Posted

Try coating the coils as already mentioned and see how that works.

Splitfires aren't worth the money unless you aren't very mechanically inclined and/or you want a COP setup like stock. I am in the process of swapping my old coils since the epoxy didn't help in the high rpms. I picked up a set of 8 Chevy Corvette LS2 coils for $125USD and mounted them along the firewall with separate spark plug wires. They should blast the splitfires away and provide adequate spark for whatever I throw at them. Plus they have built in ignitors so I can get rid of my RB25 Series 1 ignitor/power transistor unit (PTU) and wire them directly from the ECU.

Link to comment
https://www.sau.com.au/forums/topic/266127-dodgy-coilpacks/#findComment-4578870
Share on other sites
GT-RZ Community Regular

GT-RZ

Posted
Posted

Only problem i'v ever had with coils is when one died. Not sure any of the aftermarket ones can offer a much if any greater spark unless you introduce leads in to the equation like above...

before anything, like said before, clean out around the spark plug hole and clean the sleeves then spray it all with silicon spray and i can't see why unless a jacket is damaged you would have problems given that there is not a fault in the coil or wiring itself...

Link to comment
https://www.sau.com.au/forums/topic/266127-dodgy-coilpacks/#findComment-4579042
Share on other sites

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

    • Dose Pipe Sutututu
      NC MX5

      By Dose Pipe Sutututu · Posted

      The German place in Cabramatta was rock solid, fresh pretzel cooked to order back then. Then it went all quiet, after all the poker machines were removed, then I believe it closed for good. I did drive past the other week and noticed outdoor lighting a big screen, but no idea what is there now.  
    • joshuaho96
      R33 GTR running -9 with no tune

      By joshuaho96 · Posted

      Yeah I suspect even if you hold airmass per cycle/cylinder constant if you get too far away from stock you're still going to have problems running the factory tune within the bounds of the factory load scale. Cams, different displacement/rod ratio, etc. I'm just lucky that the GTIII-SS with wastegate boost + CA compliance cats is pretty much equivalent to stock turbos. When I have actual space I can finally get it tuned and modify the fuel system for flex fuel to 100% handle any detonation concerns when cranking the boost to whatever those dinky turbos can put out.
    • The Bogan
      NC MX5

      By The Bogan · Posted

      I would say no, why, because my daughter, who also lives in Goulburn, hasn't recommended us going there Pity, as we miss all the German joints around in Sydney, actually, the restaurants are the only thing I really miss about Sydney, and a special mention to Ishibanboshi at Bondi Junction, their Kara-age Don is heart cloggingly deliciousness (always added a special boiled egg...or 2) 😋 
    • GTSBoy
      NC MX5

      By GTSBoy · Posted

      Does that German restaurant still exist in the old place out the NW end of Goulburn? When I say "out the NW end of"...I am really being vague. It was 1997 when I was last there, and the only point of reference I can recall is that it was on the opposite side of the main drag from the big merino. And when I say "opposite side of the main drag", I don't mean "on the main drag". It was either a couple of streets back from there, or might have even been out in the sticks a bit further. Was an old farm building or mill or somesuch. And when I say "the big merino" I might actually be thinking of a completely different part of town, because I just looked on maps and the big bugger is not where I remembered him to be! The food was good, consisting largely of various German mystery-meat sausage/loaf things and kartofflen.
    • GTSBoy
      R33 GTR running -9 with no tune

      By GTSBoy · Posted

      So while the second sentence is completely correct and the whole point of the conversation, the first sentence bears consideration. If this bloke is just hoping to throw big turbos on and drive it around, because there are no helpful facilities at all in his tropical paradise** then he likely has zero chance of even knowing what the TP is on the last column in the stock maps, let alone know whether the ECU is operating anywhere near it or past it. So the point is very very moot. And, per what I said before, at stock boost on those turbos, you may well be off the end of the map. **I'm just back from Vanuatu, so I know exactly what small Pacific nations can be like wrt paradise without requisite facilities. But it's not even that simple. I put a high flow on my car and had to drive it around without a proper tune because of the lack of opportunity*** to put the bigger AFM and injectors into it to allow it to be tuned. I had to turn the boost down to less than I had before, and back off the boost controller's ramp, because it was exploring parts of the map that it didn't drive in before, and really couldn't access for tuning on the dyno either, and so was pinging. It was still well within the last column, because when I first**** set up the Nistune on the Neo I rescaled all axes of the maps to give some more space to explore. ***Family dyno was broken ****This was 13 years ago, and the TIM thing wasn't a thing then and so TP would definitely grow when pushing past the stock tune's limits.
×
×
  • Create New...