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Splitfires And 1.1mm Gap

08r3308

By 08r3308,
in Engines & Forced Induction

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08r3308 Mentor

08r3308

Posted
Posted

hey pple i have searched and i could not find what i was looking for :P

at moment im running (splitfire coils )0.8mm gap in my r33 heat range 7 and i was thinking of going to 1.1 mm gap....

would these improve my millage and make the car run better ?

or should i stick to what i have now?

i have read of some people running 1.1 gap successfully with upgraded coil packs?

mods are basic filter,zorst,10psi,coller,splitfires

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08r3308 Mentor

08r3308

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i know lines drink a lot but if it was able to run on 1.1 plug i tough would make the car run better and in gain receive extra mileage and power .

just reading thru some spark plug threads people seemed to run a 1.1 gap and got a much better burn of fuel making the car run better.

that's why i asked about the bigger gap

MBS206 Grand Master

MBS206

Posted
Posted

You can run a 1.1mm gap, quite easily.

Even on 10PSi...

I run a 1.1mm gap, and was at one point pushing 18PSi off a big huffer turbo, into a 3.0L block, without an issue of misfire.

I was also running 12PSi on the RB25 setup with a 1.1mm gap, without an issue in the world.

The stock plug gap is set at 1.1mm, and the FRESH coils from the factory, will run this, even with a few PSi more being thrown at it, so why wouldn't a set of coils that generate from memory a 50% stronger spark?

08r3308 Mentor

08r3308

Posted
  • Author
Posted
You can run a 1.1mm gap, quite easily.

Even on 10PSi...

I run a 1.1mm gap, and was at one point pushing 18PSi off a big huffer turbo, into a 3.0L block, without an issue of misfire.

I was also running 12PSi on the RB25 setup with a 1.1mm gap, without an issue in the world.

The stock plug gap is set at 1.1mm, and the FRESH coils from the factory, will run this, even with a few PSi more being thrown at it, so why wouldn't a set of coils that generate from memory a 50% stronger spark?

thanx for that , i was researching if it would be ok to run a 1.1 plug as per specs as i have new coils and only minor bolt on bits.

the reason for post was to see if anyone else has done it, i did not say i will do it,or will not but, why not ask and save on time and changing sparkies over when you can get a answer from pepole that actually have this setup and running it like MBS206

Bennett Mentor

Bennett

Posted
Posted

I agree. Iridiums are a waste of money. What gap you will be able to run with out the car missfiring will depend mainly on the condition of the coilpacks. If they are old and overheated and cracked then the car will missfire. If they are in good condition then it show easily be able to run 1.1 gap.

And i thought splitfires werent any stronger than new stock coilpacks... has this 50% stronger spark been proven?

gt-ahhh! Proficient

gt-ahhh!

Posted
Posted
And i thought splitfires werent any stronger than new stock coilpacks... has this 50% stronger spark been proven?

they must be stronger. i havent heard of anyone running new nissan coilpacks in heavily modified cars. splitfires are a common choice for racing applications.

on my splitfire box it has a graph showing a dyno comparison, an RB making 323ps with regular coilpacks, and 330 with splitfires. theres also another graph which i assume is something to do with spark or volts or something (its in japanese) but the splitfires easily outperform the comparative product.

Bennett Mentor

Bennett

Posted
Posted

Ah k just because lots of people say that they arent actually any better. They are just more popular because the are less than half the price of new nissan coilpacks from the dealers. Although i know there are many 400kw gtr's running stock coilpacks without any problems.

With the graph, were the nissan coilpacks old or new. Cos obviously new splitfires are going to outperform 20year old nissan ones..

gt-ahhh! Proficient

gt-ahhh!

Posted
Posted
Ah k just because lots of people say that they arent actually any better. They are just more popular because the are less than half the price of new nissan coilpacks from the dealers. Although i know there are many 400kw gtr's running stock coilpacks without any problems.

With the graph, were the nissan coilpacks old or new. Cos obviously new splitfires are going to outperform 20year old nissan ones..

well thats a very good point. everyone rubbished kkr turbos a while back, many people still do, but they seem to go alright for people who actually tried them, inc. myself.

the graph says splitfire vs "normal", engine is an rb26dett. so if theyre new factory coilpacks, 7ps is a pretty big gain.

i didnt even consider the cost, i though splitfires were fkn expensive. but then again, genuine nissan is a total rip off for just about everything.

Bennett Mentor

Bennett

Posted
Posted

LOL yeah apparently genuine new nissan ones cost near $1000 so splitfires are half that price which is why they are a good choice even if they arent any better.

But i guess if they are better than new stock ones thats an added bonus

ali-turko Grand Master

ali-turko

Posted
Posted
hey must be stronger. i havent heard of anyone running new nissan coilpacks in heavily modified cars. splitfires are a common choice for racing applications.

on my splitfire box it has a graph showing a dyno comparison, an RB making 323ps with regular coilpacks, and 330 with splitfires. theres also another graph which i assume is something to do with spark or volts or something (its in japanese) but the splitfires easily outperform the comparative product.

the hks drag gtr runs stock coil packs, the only reason ppl go spitfires is cause nissan

want something like $1000 for them brand new

R31Nismoid Grand Master

R31Nismoid

Posted
Posted
they must be stronger. i havent heard of anyone running new nissan coilpacks in heavily modified cars. splitfires are a common choice for racing applications.

on my splitfire box it has a graph showing a dyno comparison, an RB making 323ps with regular coilpacks, and 330 with splitfires. theres also another graph which i assume is something to do with spark or volts or something (its in japanese) but the splitfires easily outperform the comparative product.

Stronger based on what?

They are not stronger at all.

You are comparing 10-15yr old worn Nissan coils, vs a new coil out of the box, which is wrong. Unless you had brand new coils in your car, your results/testing is incorrect.

If you purchased a NEW set of Nissan coils, put them against Splitfires - you wouldnt know the difference other than one lightens your wallet substancially more than the other.

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