anyone know of any mods to get rid of " wasted spark ". I have my reasons, thanx.
Fred Hubbard
Individual coils per cylinder with a standalone system running the ignition or swapping to a distributor style setup like a lot of the race engines do. Thats all i can think of.
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<<<<<2003 Sunfire Sedan>>>>>
If you dont mind me askin, why?
horsepower is the force that determines at what speed you hit the wall, torque is the force that determines how far you take the wall with you after you hit it.
02 silver cavy wrote:If you dont mind me askin, why?
ok ok. My '05 cav is out of warrenty - i live in a state with no car inspection. I am an Avionics Mechanic by trade & a backyard designer & craftsman by hobby. It is imperative to find out about "waste spark" because of something i was designing. Seems to me just about everyone in here is about going fast & could give a s**t less about saving money. I am a family man & a blue collar worker. I drive 86 miles to & from work ( round trip ) everyday x's 5. My ol'd lady who is only 40 is not expected to live into her late 50's is killing me, I am designing something very special for fuel economy & is not at all like re programing chips & the general B.S. you read about on the www.
peace out. As forrest gump would say -- thats all i got to say about that !!! f**K the damn chocolate thing already !!! LMFAO
Fred Hubbard
Don't forget to retard timing as well since the spark will propagate a lot faster!!!

I'm not yet to that level... still working on my first couple boosters. Good Luck and be safe!!
All it is is a spark that occurs on the exhausting "Sister" cylinder of the one that's under the compression stroke at the same time & seeing the fuel/air charge ignition. It don't really do anything but complete the loop of the high-voltage current travel in the coil's secondary system. It's called "Waste-spark" because all it does make a spark that jumps the gap of the plug on a cylinder on the exhaust stroke the same time it's jumping another plug on a cylinder seeing compression, causing the spark on the exhausting cylinder to be considered a waste. However, because the exhausting cylinder's plug is seeing less resistance than the one compressing, less total voltage produced by the secondary windings of the coil firing both is used to jump the gap on the plug on the exhausting cylinder. Truth told, the only advantage to using a indie-coil system to a waste-spark is that the coils get more time to saturate. But with current-sensing/limiting circuitry on-board as part of the ignition control module (The part the coils connect to) limiting the total amperage the coils see during saturation to 1A, unless you change that part, I don't really see much being gained at all by changing the entire system.
Go beyond the "bolt-on".
so.. waste spark wastes fuel economy how exactly..?
In short: It don't. It just places a spark in a cylinder with spent gases inside during a exhausting stoke the same time as it places spark in a compressing cylinder with unspent gases inside. It's considered a "Wasted-spark" because it doesn't ignite anything air/fuel mixture on the exhausting "Sister" cylinder. But then, there's not there for it to ignite anyway, and the total resistance across the gap of the plug in that situation is so different than for the plug in the compressing cylinder that barely any voltage is used to jump it.
True, electricity does like to take the path of least resistance, and it would seem that there'd be less resistance across the gap in the exhausting cylinder than in the compressing one (Something I once heard about raising compression making it more difficult for spark to jump the gap). Not so! Truth is by raising compression pressures achieved the esier it is to light-off an air/fuel mixture. Odd, huh?
Go beyond the "bolt-on".
Oh, I know nickle.. but...
Fred Hubbard wrote:anyone know of any mods to get rid of " wasted spark ". I have my reasons, thanx.
he sounds so confident... I want to know his "reasons" for getting rid of waste spark.
Ok OK OK... I am dealing with hydrogen - if there is the slightes bit unspent, I don't want a waste spark do to counter force on the crank. jeez dudes - PEACE
Fred Hubbard
ah, a hydrogen conversion....
although to me it seems like a huge waste of money, especially at the cost of hydrogen, I applaud you in your quest....
unless you are trying to do the "my car runs on water" thing....then good luck.
either way, post up some pics and results please.