flubyux2

Im trying to find out how much voltage the coil packs produce. Ive seen aftermarket MSD coils that produce 45kv, some GM HEI coils that produce 60kv... but im interested in seeing if anyone knows how much voltage the FC coil packs are supposed to produce.

ive been told that the FC coil packs produce more voltage than MSD coils. thats lead me to the desire to divise a way to install FC coils on my Supra.

anyone?

Project84

I wanna say 60 but let me see if I can find where I read that.

flubyux2

yeah, that would be pretty nice if they are 60kv. i dont remember if its the Trailing coil or leading coil that has the higher voltage... i want to say its the one w/ only a single tower, not dual tower.

RotaryEvolution

iTrader: (30)

leadings produce more power but killivolts should be irrelevant, with a properly tuned spark plug the coil packs produce enough power to handle up to 500RWHP.

RETed

Why do you care about such high voltage?
Higher voltage means more chance the power will leak.

If you're worried about the power of the spark, look at the Joules rating.


-Ted

Aaron Cake

iTrader: (1)

If you really want to know, any TV repair shop has equipment to measure....The tech may look at you strangly though...

flubyux2

well, i care about spark energy because im building a supra with a T88 that will be capable of flowing enough air to produce 1000rwhp. since the AEM ECU uses a waste spark ignition on the Supras, and FC coils fire more times per 2 revolutions than standard piston engine cars, they should run better than stock coils or LS1 coils. then, i could run the FC coils and not need to use an ignition amplifier yet still have sufficient spark for 38-40psi of boost on race gas/toluene. im just trying a different route than LS1 coils and an HKS DLI, because the general consensus is that LS1 coils arent that great with the AEM on the Supras. plus, the DLI isnt totally necessary if using iridium plugs, but everyone w/ AEM's seems to be split over needing the DLI or not.

are you sure that the energy is the only thing that dictates the ability of a spark to jump a gap? lightning has very low energy but super high voltage and it jumps pretty large gaps. plus, there is less current loss with high voltage and low current across conductors. thats why power plants transmit electricity with low current and super high voltage over the high tension lines and use substations to step down the voltage before they enter buildings. if the voltage was put out at 120v/220v/460v, there would be alot of current losses.

would the coils be rated in Kilojoules? or watts?

savana

a coil will only ever produce just enough voltage to jump the plug gap, if its capable of producing 80kv but only requires 10kv to jump the gap then thats all it will produce

rodney87

x2

RETed

ASSO...Another S***** Supra Owner...
Why are you ******* with stock OEM crap, when you should be dropping the money for MSD HVC coils?
LS1 coils are crap - there's a link to a thread to another forum which has very technical talk about CDI and coils; the LS1 coils are not favored very well.


Wrong.
Lightning has super-high voltage *and* super-high current.
But, higher voltage does increase chances of arcing easier.


Be careful.
You're talking about AC versus DC.


They are actually rated at *milli*Joules.

If the spark plugs could generate KJ, it would basically fry the entire car...literally.


-Ted

Goofy

He was right about the high power lines being high voltage AC and low current to reduce losses. Substations are AC-AC high voltage to "low" voltage (usually ~440 VAC)

The "cans" on your telephone poles step down from ~440 to ~220 VAC. Your fuse box steps down from ~220 to ~110 VAC (except the line that goes to your drier, and stove if electric).

Power lines and home electric has nothing to do with the difference between AC and DC electricity.

-Goofy

trochoid

iTrader: (6)

The fuse box doesnot step down the 220v. The line drop has 2-110v lines that are out of phase. Adding a second hot to an appliance is what gives 220

flubyux2

Hey ted, give it a rest. i didnt come here for attitude. i figure of everyone here, youd be the most mature and not be a *****... but i guess i got the wrong impression of you. I may be stupid, like the rest of the supra owners that you have in mind... but we can still run 9's with 3500 lb cars and put down 600rwhp on PUMP gas...

i dont want to just buy aftermarket coils because they are a cool color or new. i want to KNOW that the item im buying is worth the money, not because its somethng other than stock. If my stock volts put out the same current as an MSD blaster coil, whats the point in dropping money on it? none... thats why im asking around.

and for all i know, the FC coils could be better than the budget MSD's thats everyone else runs. they could be a middle of the road upgrade; better than stock but not as good as the HVC gimmicks that you speak of.

Kthxbye