so i went and bought some splitfire coil packs & now they are fried,requesting advice

[boat]

I have a wolf3d with an annoying rotational idle setup(shops mistake). I have been through 2 stock coils packs and now my beautiful splitfires have been fried to death.

I have searched the forums but I haven't found anyone who has blown splitfires. Does anyone know if rotational idle has anything to do with it. The car takes a good 2 - 5 seconds to turn over and idle but I think that is normal of a wolf3d - so I hear?

Any advice appreciated.

RIP $700

[GTR-Ben]

Change to leads?

[CEF11E]

you need a wasted spark setup!

there is a guy selling a module with 3 coils in it suited to skylines in a wasted spark setup. aparently this helps for 2 reasons

1. the coil is able to charge/discharge quicker than anything else not causing resistance while being used in rotational idle.

2. the coils are mounted on the firewall away from all the heat of the engine. you then use leads to the plugs.

I havent seen these personally but have read a lot of good things about them.

go here skylines downunder

http://forums.skylinesdownunder.co.nz/show...ht=wasted+spark

[FATGTS-R]

What exactly is rotational idle? Isnt something used in conjunction with anti lag to help rapidly cool the engine?

Bit out of my scope here but wouldnt a wasted spark set up also put extra load on coils since they are firing twice as much as factory? And if he has the V4 plus Wolf it has 6 ignition drivers so no need for a wasted setup.

[boat]

What exactly is rotational idle? Isnt something used in conjunction with anti lag to help rapidly cool the engine?

wolf 3d rotationl idle is just wank, like blow off valve. it makes the car idle rough to sound lumpy

its the worst thing ever invented

i am reading up on the wasted spark setup has I have never heard of it, but my worry is that i shouldn't have blown a splitfire in the first place, let alone all of them ?

[Reedy]

I had the same problem it was to do with the wolf's max ignition discharge time I had set to 1.8ms and they did some tests and it was actually about 15ms. I even sent it down to wolf and they said it wasn't a problem even though my car would just misfire at high boost from the spark plugs firing so much. I suggest you do some test on how much charge time it is actually putting out and buy a power fc as wasted a lot of money on the wolf with dyno time and coils.

[LUMPY]

True rotational idle is a good thing. It has a purpose. To the best of knowledge, however, it's something that the more traditional motorsport level ecu's have mastered. It needs to be set-up right and as it's more of a race thing, street level driveability isnt an issue.

Anyway, the coil pack issue is more related to the sheer dwell time the ecu is running. It's too high. Speak to your tuner and have them revise the setting.

I am surprised at this failure though as I thought the Wolf with it's full sequential spark delivery wasnt supposed to do this!

[Reedy]

Anyway, the coil pack issue is more related to the sheer dwell time the ecu is running. It's too high. Speak to your tuner and have them revise the setting.

The ignition discharge time on the wolf controls the dwell time get the tuner to test if the dwell time it is set to is the same as what it is actually putting out I bet its actually putting out a much higher amount.

[GTS-t VSPEC]

I've seen lots of cars with Wolfs and SplitFires and never seen them get fried. I agree that it must be the dwell time. Sorry to hear about your loss:(

[boat]

Thanks guys, now I'm in the right direction now. Really appreciate it.

[R32-GTS]

Most tuners would know that sequentially firing a coil is alot better than waste spark as your firing twice as often with waste spark causing the coil to get much hotter and die sooner . But yes that problem is definetely the coil charge time which is adjustale on the wolf.

[LUMPY]

And most tuners would also know that in a waste-spark scenario, the true load on the opposing coil, ie the one not at the combustion stroke, is practically miniscule. There is no combustion pressure to overcome, so the path to ground inside that cylinder is practically free. There is a lot of good info on waste-spark out there, so I recommend a few of you go check it out and get an understanding on the process rather than just spruik off someone elses half correct handmedown knowledge. With the correct dwell time and the correct spark plug choice, there is nothing wrong with this option.

Heat in a coil comes from too much charge time, not how often the coil has to cycle.

[skyQUEST]

if you email me the cal file I will check it out for you.

lumpy is correct about waste spark, its a good thing, and coils get fried by charge time. but certainly the spark time setting may be wrong as well.

[skyQUEST]

some further research on this, found some info that indicates 2mS is the required coil charge time.