ignition system upgrade

[not12listen]

so, in my pursuit of gaining/freeing up some more BANG from my 99 2.5RS, i've been looking into ignition systems a little.

the first thing i am looking at it spark plug wires.

i have found a set that claims no measurable drop in voltage from the start to end of the wire itself. i'll be getting a pair of those wires, and perhaps even put my car onto a dyno before and after... just have to find a local dyno.

i've no doubt that there is something to be gained from using the 'correct' plug as well... but, that'll take a bit more research.

i'm just curious if anyone else has done any reading or research on this topic as well, and if so, lets compare notes.

[myhobbes25]

pretty sure this was covered alot in the pulstar spark plug thread. But pretty much, stock wires or rallitek are just as good if not better then the performance wires available for the subies.

[not12listen]

i was looking at Magnecor 8.5mm plugs.

do you recall if those wires were tested? and yes, i'll search for that thread.

[Azer408]

Rallitek +1

[bl_easy]

Originally Posted by not12listen

i was looking at Magnecor 8.5mm plugs.

do you recall if those wires were tested? and yes, i'll search for that thread.

FWIW, I ran Magnacores for 3 years without any problems

[not12listen]

did you notice any difference at all?

[bl_easy]

I can't really say, because I bought the car, then replaced the plugs, wires, and coil immediately. I didn't drive it enough beforehand to notice a difference.

I did go to the OEM wireset in Fall of 08. Didn't notice any difference there, either.

[not12listen]

aok. good enough.

are there any aftermarket ignitors (i know MSD makes universal models) that have shown any actual benefit?

as stated at the top, i am first looking at wires... so, i'll stick to that, but its all a system...

[bl_easy]

Originally Posted by not12listen

aok. good enough.

are there any aftermarket ignitors (i know MSD makes universal models) that have shown any actual benefit?

as stated at the top, i am first looking at wires... so, i'll stick to that, but its all a system...

Unfortunately, MSD does not make custom wiresets for the Impreza. There are two different horizontal 4-terminal coils, but neither is a plug and play for the Impreza. You'll have to get the plug end from the Mitsu or Neon it's meant for and splice it into your coilpack harness.

Of course, this is just something I really wanted to do, but never got around to it. Give it a shot

[SubyReeves]

i had problems with Rallitek wires. worked fine but didnt fit right. it was loose and slowly vibrated itself out of the housing causing misfires.