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r33 gstst ignition coils

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By zoom,
in Engines & Forced Induction

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SLY33 Mentor

SLY33

Posted
Posted

i have just changed to splitfire coils, and it is still recommended to keep the plug gap to 0.7 or 0.8mm. On the street it ran fine at larger gaps (i tried up to 1mm) but on the dyno it missed badly up top of the rev range.

as a point of interest, with plug gaps at 0.7mm, i gained roughly 3rwkw on the same dyno in the same conditions since changing the coils to splitfire, nothing else changed. Its probably insignificant, as i didnt do numerous runs and take an average, but its nice to see :(

SLY33 Mentor

SLY33

Posted
Posted

oh, to answer your question, i would recommend it. Im only running 17psi, and the stock coils would give me a few misses every now and then, but with the new ones i havent seen a miss yet. It did also feel like it ran stronger after i changed the coils. May be Placebo effect tho!

Also if yours is an early series 1 33, the coils will be getting pretty old now.

oscar32 Mentor

oscar32

Posted
Posted

Yeah, mine missed like crazy once I got past 15 psi, but I found all the coils were cracked.

Splitfires are a good upgrade, and I saw an improvment of around 5 - 8 kws or so, and the power feels a lot more solid (and I can actually floor it now....)

SLY33 Mentor

SLY33

Posted
Posted

you can get them for ~$700 thru greenline or nengun or the like. Or if you want them ASAP Horsepower in a box should have them on the shelf and get to you in a couple days, but for around $900 maybe a bit more -not sure, check the website. High octane racing in NSW should have them also.

pretty sure price is same for series 1 or 2.

as far as i know, the splitfire series 1 and 2 coils are exactly the same coils, just the plug is slightly different, so its possible you could just use the correct loom/plugs with either coils on s1 or s2. correct me if im wrong.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted
guys,

is it worthwhile to upgrade ignition coils to spitfire when running about 18psi or r33 gtst? any feed back would be appreciated!

not really.

My car is fine and im over the 300rwkw for the time being.

I have no issues at all.

MY suggestion, put it all together and then see if you have any problems.

THEN spend the extra $$$ on getting them. That way your not spending money if you dont neccasairly have to

And some food for thought...

Whether the splitfires are actually better... who knows.

Remember your replacing 10year old packs with brand new ones, so of course they are going to work better

zoom Community Regular

zoom

Posted
  • Author
Posted

Thanks mate, i will run with the stock coils first then, if they work, i dont have to get the spitfire! :P

not really.

My car is fine and im over the 300rwkw for the time being.

I have no issues at all.

MY suggestion, put it all together and then see if you have any problems.

THEN spend the extra $$$ on getting them. That way your not spending money if you dont neccasairly have to

And some food for thought...

Whether the splitfires are actually better... who knows.

Remember your replacing 10year old packs with brand new ones, so of course they are going to work better

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

:)

im of the belief that if money can be better spent elsewhere, then it should be... if not save that money incase something else breaks.

I dont mind talking from what ive found out of my own car which ive spent a lot of time/money on... some i wasted. And i'd hate to see others do the same

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