splitfire plugs?

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

Perry Noid - 25 May 2007 14:33 GMT

car: '89 240 wagon

I'm about due for some new plugs, and I noticed that the splitfire plugs
would be about the same price (or even a little cheaper) as what I'd
normally put in. I don't really expect them to give any great increase in
gas milage, but even a little would be nice these days! Any problem with
them running too hot? Burning pistons or anything really nasty???

Reply to this Message

clay - 25 May 2007 17:52 GMT

> car: '89 240 wagon
>
[quoted text clipped - 3 lines]
> gas milage, but even a little would be nice these days! Any problem with
> them running too hot? Burning pistons or anything really nasty???

We ran them for a year or so in a boat I wrenched on. They work fine in
a 434" small block with 16.5:1 compression...
Got to watch out for flash where they split them though. Sometimes
there's a little burr left behind that could glow and cause pre ignition.
We did push the center electrode out of one once.
btw, there was no apparent performance gain and we wouldn't have run
them at all if they weren't free. 24-32 plugs a weekend is beer money!

Reply to this Message

James Sweet - 25 May 2007 20:42 GMT

> car: '89 240 wagon
>
[quoted text clipped - 3 lines]
> gas milage, but even a little would be nice these days! Any problem with
> them running too hot? Burning pistons or anything really nasty???

I've heard nothing but problems with splitfire plugs. Skip the gimmicks and
use good old plain NGK plugs, they work perfectly every time.

Reply to this Message

Michael Pardee - 25 May 2007 23:41 GMT

>> car: '89 240 wagon
>>
[quoted text clipped - 6 lines]
> I've heard nothing but problems with splitfire plugs. Skip the gimmicks
> and use good old plain NGK plugs, they work perfectly every time.

That's the bottom line - reliable plugs are getting hard enough to find.
NGKs are a good bet.

Mike

Reply to this Message