Jim_1979 Posted August 22, 2008 Share Posted August 22, 2008 Curious if anyone here is running a wasted spark setup? I was looking into it on my old skyline due to the stock coil packs being duff. I know one person on here is as I've been pm'ing him. Just curious if anyone else is, or there thoughts on it? Link to comment Share on other sites More sharing options...
Sean1933 Posted August 23, 2008 Share Posted August 23, 2008 Im interested on this too as i was wondering how hard it would be to retro fit a Driftworks Skyling wasted spark kit, there only £145! Link to comment Share on other sites More sharing options...
TrickTT Posted August 23, 2008 Share Posted August 23, 2008 Anyone with a VVTi. Cant see a good reason to fit it to a pre-VVTi TT though. A step backwards IMO. Why not just go the whole way and fit contact breaker points. Link to comment Share on other sites More sharing options...
Swampy442 Posted August 23, 2008 Share Posted August 23, 2008 I see it as a reliable viable alternative to coil packs. Link to comment Share on other sites More sharing options...
merckx Posted August 23, 2008 Share Posted August 23, 2008 I'm not sure if I understand this fully. Wasted spark systems have a higher potential for spark intensity because the duty of charging and discharging is split between the coils, which allows for more charge time per coil. Additionally, wasted spark systems build up less heat in the coil, making it more reliable. Link to comment Share on other sites More sharing options...
TrickTT Posted August 23, 2008 Share Posted August 23, 2008 I'm not sure if I understand this fully. Wasted spark systems have a higher potential for spark intensity because the duty of charging and discharging is split between the coils, which allows for more charge time per coil. Additionally, wasted spark systems build up less heat in the coil, making it more reliable. I think that is comparing to a single coil and distributor set-up. Compared to a coil-over-plug, each coil would be firing twice as often. Link to comment Share on other sites More sharing options...
merckx Posted August 23, 2008 Share Posted August 23, 2008 Compared to a coil-over-plug, each coil would be firing twice as often. It would but the actual wasted spark doesn't have the required conditions to produce a good spark as it does when you have the air/fuel mixture present therfore it's not really a full high voltage spark that's wasted. I'm sure that Toyota wouldn't have changed the setup to wasted spark if they weren't confident in maintaining their record of high reliability. Link to comment Share on other sites More sharing options...
mkirby Posted August 23, 2008 Share Posted August 23, 2008 i looked into this on my last car and got told its a massive step back and you would get a better spark getting new OEM coil packs!! Link to comment Share on other sites More sharing options...
merckx Posted August 23, 2008 Share Posted August 23, 2008 i looked into this on my last car and got told its a massive step back Would Toyota fit it to the later cars if this was so, I don't think so. It may well produce a better spark and the six coil pack design could well be inferior. It's all got to be down to the actual coil pack design and it's reliability. You've got to remember that the wasted spark coil pack is not just a single coil pack with two outputs, it was obviously designed for a purpose and therefore I cannot see any disadvantages at all. I trust Toyota. Link to comment Share on other sites More sharing options...
chilli Posted August 23, 2008 Share Posted August 23, 2008 I thought wasted spark was generally a manufacturer cost saving measure - you see it on a lot of cheaper cars, especially french ones I'd stick with individual coil packs personally Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted August 23, 2008 Share Posted August 23, 2008 If you want more coil power go for something like Mercury outboard coils;) Link to comment Share on other sites More sharing options...
Wez Posted August 24, 2008 Share Posted August 24, 2008 When you install an AEM in a non-VVTI supra you are converting to wasted spark, this halves the coil charge time which is why you cannot run any sensible boost without an ignition amp like a HKS DLI. Why you would want to convert to wasted spark intentionally beyond me. The AEM does it purely because it doesnt have enough ignition outputs, other aftermarket ECUs dont have this issues and therefore dont require an ignition amp. What is your reason for wanting to convert to wasted spark? Link to comment Share on other sites More sharing options...
movistar Posted August 25, 2008 Share Posted August 25, 2008 wasted spark isn't a new concept is been around for age's and as they state ..wasted is wasted...more of an emissions thing really it gives you a second burn on the exhaust stroke to get rid of any unburnt fuel.(it's also a cost cutting incentive for manufacturers) Personally i wouldn't waste you time investigating this for a supe...not unless you a tree hugger;) Link to comment Share on other sites More sharing options...
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