Teach me about ignition

[jtbshaw]

Originally Posted by t_g_farrell

On the evil forum I have a write up for an ignition using HEIs and Ford TFI coils.
Makes a really strong spark.

http://www.rx7club.com/showthread.php?t=894669

Is there any benefit to running this system over Jeff's DLIDFIS? The only thing that I see is that it eliminates the purchasing of expensive aftermarket coils. Not trying to crack on your setup, just trying to understand it better.

I've often wondered why not run a CAS and do a direct fire setup on both leading and trailing, for boosted applications. Otherwise, the trailing is really not even necessary.

Another option that used to be available is the Crane HI6/LX92 coils setup. I used this before with incredible success. This combo held up very well to boost with N2O. I had to actually change out the plugs every 3-4 weeks becuase the spark was so hot (mixed with burning the N2O and a 10k rpm redline) that the plug electrodes would almost be burnt completely off. I was running BR8EQ14 plugs in the last setup. All 4 electordes would be burned down to barely a nub. The porcelain/ceramic (or whatever that material is) would crack or break off if I didn't change the plugs soon enough.

Of course, Tyler, the last option you (using a general term here) would also have to take a freaking loan out for. I think I had a little over a grand in that setup....then 4 new plugs every month. That's what I get for driving something like that everday.

Todd B.