best spark plug and wire combo?

[nicky51]

I have an87 325i cabbie. Just wondering where to get the best kind of plug and wire set for this motor. im doing the miller maf and chip combo and i want to do it all at once.. Thanks for your help....

[jlevie]

Best plugs are NGK's. Best ignition wires are is the OE set.

[livetheride]

i'm gunna say the best plugs are bosch. and go with OE wires.

[E30Gus]

BTW and it might be different where you live but I couldn't find NGK or Bosch standard copper plugs anywhere so I had to order them on line.

[nando]

Best plugs are NGK's. Best ignition wires are is the OE set.

this man has it right

there's a couple stock equivalent NGK part #s, personally I'd use BPR5ES. I haven't had any trouble getting them over the counter locally, and they're less than $2 each.

[nicky51]

reply

Ok. Thanks for the info.. I was wondering the oe set . Can youget those in colors that ive seen sometime or are they all blk... And wheres the best place to get them. Thanks again...

[nando]

they come in black

jlevie, what's your opinion on Bremi wires? They're basically an OE replacement, I know a couple Pro3 guys that run them. They seem pretty decent.

[jlevie]

I think that any high quality OE or equal wire set will be fine. I've never seen any performance improvements from "high performance" ignition wires. In a like manner there's no advantage to be gained from a "high performance" coil of MSD.

The original Bosch plugs are fine, but they are NLA and their replacement doesn't work as well (dyno proved). The NGK ZGR5A are an excellent substitute and can be had from Advance, AutoZone, etc. For track use Autolite AR53 plugs, which run a touch colder, are arguably a better choice. They aren't a good street plug though as they run a bit too cold. I get my AR53 plugs from Advance as a special order item.

[Dave]

Jim,

I drive my e30 to and from the track and at the track. That is the only use it gets - it is never used as a daily driver. Engine is bone stock.

Are the AR53s ok for that, or should I get the NGKs?

[jlevie]

If your driving distance is short and mostly highway, say less than 100m, the AR53 plugs should be okay. It is easy enough to tell is you can get away with this. Drive to the track using NGK plugs, change to AR53 plugs and run you sessions. Before going home, pull the plugs and see what they look like. After you get home pull them again and see if they are fouling.

Note that thew AR53 plugs might not be a good choice on a worn engine. They may tend to foul worse than NGK plugs if a good bit of oil is going through the engine.

[Sirotto]

bremi is the best, I have compared OE dealer bought next to the bremis and the Bremis seem to have a better build. I also prefer ther cap and rotor over Bosch or anybody elses. NGK is the bets plug to me, BMW has used NGK in the M3 for years as the factory plug.

[nando]

you could also get NGK ZGR6A or BPR6ES as a colder plug for track use. In NGK plug part #s, a lower # means a hotter plug, a larger # is colder. Bosch part #s work in reverse.

[Dave]

If your driving distance is short and mostly highway, say less than 100m, the AR53 plugs should be okay. It is easy enough to tell is you can get away with this. Drive to the track using NGK plugs, change to AR53 plugs and run you sessions. Before going home, pull the plugs and see what they look like. After you get home pull them again and see if they are fouling.

Note that thew AR53 plugs might not be a good choice on a worn engine. They may tend to foul worse than NGK plugs if a good bit of oil is going through the engine.

Thanks - maybe swapping plugs at the track is the way to go. My trip is about 130 miles to Putnam, more like 170 to MidOhio - both are all highway.

My bottom end was refreshed fairly recently. It only has about 40 or so 20-30 minute DE sessions on it at this point.

[MR 325]

Man, I always use Bosch Super plugs.

[SpecM]

I switched from Bosch 7909 (stock number, not part number) to NGK 5077s (aka zgr5a's) and I prefer the NGKs