Anyone running these:

http://store.summitracing.com/partde...850593&FROM=MG

 

really isnt worth the money, unless you need to replace them anyway

 

RPM Outlet has 3 valve COP's as well. Yea , I wouldn't touch the stockers or mess with the ignition system at all, unless you have to..

 

i'd honestly keep to OEM's, seems like the general consensus for the 2v's was ya cant beat OEM quality. why would 3v's be any different?

 

thanks for the feedback. Was thinking they might help increase mpg's.....

I might get the Troyer Efan setup.

 

heres something to think about, heard from reputable person on these boards.

lit from summit "Our direct replacement coil-on-plug ignition coils increase power to the spark plug by over 400 percent compared with stock coils."

verbage from reputable person on these boards, "i dont care what coil pack or coil over plug you run, your not going to get more out of your coils when the computer is sending a set voltage." theory is cant get more out of a coilpack/cop when your input is limited by the ecu/stays the same

 

Klitch is right - If you want MPG's - try a set of Pulstar Plugs - if they make them. Everyone I know that has them is getting better MPG's . But I don't know anyone that's running them in a f150 yet . They make them for my model - I'm not sure if they make them for the three valve.

 

Now that's an interesting point.....not trying to say your guy is all wrong but I think it's not quite that way.....
The voltage sent to the coils is not the actual voltage fired from the coils though, it uses a driver signal from the ECU/pcm to fire,it acts like a switch, the firing voltage is determined by the primary/secondary windings of the coil itself...., B+ is applied to the primary windings, it get 's the driver signal (ground side switch through the PCM), collapses, the magnetic field induced from the primary to the secondary windings and the voltage is fired, B+ is battery voltage, all ignition systems have been using this for as long as I can remember, so no you can't change that value witthout "stepping up" the voltage with the coils...that's why they are there.....

Remember the big yellow Accel ignition coils? they were HUGE! same theory though, increase the windings to increase the magnetic field to increase the voltage......

If I have this all goofed up feel free to correct me..........

 

Hey FT

The way I thought it was is that the coils just get sent a low voltage signal from the PCM. From there, the coils job is to convert to pulse. Pulse measured x10 thousand = coil volt output.

 

12V is fed to the coil and that voltage is stepped up to 50,000V within the coil until it's told to fire. Agreed, The "Big Yellow" from Accel is a good example. More windings in the coil means more voltage fired when signaled by the PCM.

 

Uhmm , we have pulse ignitions and the signal is less than 12 volts lol - per dedicated cylinder - via PCM. Wheres all the info coming from? Stock coils is all you need - Anything more can result in problems and won't benefit pulse in any way. The PCM is executive. You would have to change the programing. If I'm wrong, then Ford needs to change there service information. 50,000 0r Granitelli's 60,000 volt shot's never had any benefit IMO - Just allot of headaches ..You know how much engineering thought went into this design? I wouldn't attempt to out smart it , there is no need, unless your motors modifications call for it.

 

FordTech1 has it right. There is a 30 amp fuse on the hot wire going to the coils. All the PCM does is cut the ground to the coils. If you want "hotter" coils increase the windings. I don't believe the 400% BS from Summit but they are trying to sell coils........

Regards

Jean Marc Chartier