Coil pack. General service-life question.

Steampunk · Postby **Steampunk** » Wed Nov 28, 2007 10:07 am

What is the service life of coil packs for NA and NB?
For those that have replaced them with new items, what, where, how much? Bosch doesn't list a part for NA8 onward

Any difference in performance/driveability?

manga_blue · Postby **manga_blue** » Thu Nov 29, 2007 9:48 am

I did a whole lot of reading on this a couple of years ago for my Subaru.
The general impression was that all coilpacks start to deteriorate after around 80-100k. In my case I'd noticed fuel consumption and pick up sliding downward from 100kkm until it started to cut out completely on long climbs at 160kkm. I replaced the pack and got about 20% improvement in fuel and power immediately. It was like getting a new engine.

Steampunk · Postby **Steampunk** » Thu Nov 29, 2007 10:00 am

thanks blue.
My car has done 130k+ (got it with 85k on the clock 8 years ago) and it's mechanically very sound.
I get a little paranoid at times. I have replaced every serviceable item now, and starting to think about major bits.

Coils are expensive! and I'm spewin that Bosch doesn't have a part.

Might have to sell a kidney and buy Splitfire Di's ... I feel another thread comin' :mrgreen:

pcmx5 · Postby **pcmx5** » Fri Nov 30, 2007 7:39 am

[
Coils are expensive! and I'm spewin that Bosch doesn't have a part.

Might have to sell a kidney and buy Splitfire Di's ... I feel another thread comin' :mrgreen:

[/quote]

I checked themout with Perfectrun a while back and the Spifire ones were around$450 in Aus from memory,so you may only have to sell half a kidney!!

Peter

Steampunk · Postby **Steampunk** » Fri Nov 30, 2007 9:03 am

Maybe just 1/4 of my liver then, cause at least it will grow back :mrgreen:

Yeah, they've come down in price considerably since last year.

I'm trawling around the good ol' fleebay. I found one for $326USD in Japan but it's gone now. Thanks Peter

pcmx5 · Postby **pcmx5** » Fri Nov 30, 2007 10:28 am

Just checked,the yen has picked up;$560 in Australia at todays comversion rate.

Peter

kula · Postby **kula** » Sat Dec 01, 2007 7:28 am

im going to do a CoP converstion using toyota 1ZZ coils for about $275.

EGG80X · Postby **EGG80X** » Sat Dec 01, 2007 10:09 am

kula wrote:im going to do a CoP converstion using toyota 1ZZ coils for about $275.

oh really?
got link Mark?

Insurgence · Postby **Insurgence** » Tue Dec 04, 2007 8:22 pm

http://www.miataturbo.net/showthread.php?t=10241

ok that link no work anymore.

still waiting on ampz's build

-my coil packs on the way out 130 kms.
-besides COP build probably only other choice is new coils. i dont think split fire make mx5 coil packs.

kula · Postby **kula** » Tue Dec 04, 2007 8:46 pm

they do, but arent cheap.

kula · Postby **kula** » Tue Dec 04, 2007 8:49 pm

this is what im gonna do

http://www.miataturbo.net/showthread.php?t=12704

Steampunk · Postby **Steampunk** » Wed Dec 05, 2007 8:53 am

Dead thread kula.

You guys aren't using the Arkham's Razor theory? \"the simplest explanation is probably the most correct\", ie. have you considered just upgrading to the Splitfire Di individual coil-pack thingys?

It's pricey (cheapest I found was $386USD), but it is Splitfire after all, and no mods.

sabretooth · Postby **sabretooth** » Wed Dec 05, 2007 4:27 pm

This is the thread: http://www.miataturbo.net/forum/showthread.php?t=12704

I'm tempted to resurrect my old MSD DIS-2 with a nice set of coils. I'll have to find something suitable to drive with them, though.

1red5: ????

Do you mean Occam's Razor?