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914World.com _ 914World Garage _ Recommended Spark Plugs

Posted by: KaptKaos Jan 6 2006, 05:34 PM

Looking for the recommended spark plugs for a bone stock 1.7.

Thanks for your advice.

Thanks,
Joe

Posted by: dmenche914 Jan 6 2006, 05:38 PM

Bosch W7DC have worked fine in my 1.7 stock engine these are the copper core plugs, they actually seemed to work beeter for me thant eh more expensive Bosche platinum ones.

Posted by: Aaron Cox Jan 6 2006, 05:47 PM

i liked NGK b6es plugs....

Posted by: TROJANMAN Jan 6 2006, 05:59 PM

QUOTE (Aaron Cox @ Jan 6 2006, 03:47 PM)
i liked NGK plugs....

x2

$hit, i just agreed with Aaron

Posted by: wertygrog Jan 6 2006, 06:19 PM

haha kaos my friend has a little red mr-2 like those in your pic...

fun car!

brent

Posted by: Dave_Darling Jan 6 2006, 06:23 PM

The W7CC and NGK 6-series mentioned are both decent plugs. Stay away from the Bosch Platinums (regular, +2, +4, whatever) unless they are the very very very expensive ones that use more than a tiny speck of platinum in the electrode. (Which you just about don't find in any parts stores, BTW.) The quality control on the regular platinums is sub-standard, and they have caused all manner of problems in several cars I know.

--DD

Posted by: TROJANMAN Jan 6 2006, 06:24 PM

QUOTE (Dave_Darling @ Jan 6 2006, 04:23 PM)
The W7CC and NGK 6-series mentioned are both decent plugs. Stay away from the Bosch Platinums (regular, +2, +4, whatever) unless they are the very very very expensive ones that use more than a tiny speck of platinum in the electrode. (Which you just about don't find in any parts stores, BTW.) The quality control on the regular platinums is sub-standard, and they have caused all manner of problems in several cars I know.

--DD

what kind of problems dave?

aron, i'll get to your pm later...... popcorn[1].gif

Posted by: Gearhead1432 Jan 6 2006, 06:31 PM

You can't go wrong with Bosch supers or NGK. The heat range depends on a few things like how you drive it. From what I know the platinum plugs are intended for modern ingnition systems. Of course I don't realy go for all of the special plugs with 4 electrodes or whatever

Posted by: KaptKaos Jan 6 2006, 06:32 PM

Thanks for the replies!

Oh yeah, what gap?

Posted by: KaptKaos Jan 6 2006, 06:33 PM

QUOTE (wertygrog @ Jan 6 2006, 04:19 PM)
haha kaos my friend has a little red mr-2 like those in your pic...

fun car!

brent

That was for Aaron and his xnineteen.com stuff. I forgot to delete it.

Posted by: Aaron Cox Jan 6 2006, 06:33 PM

ive since gone to an NGK B5ES due to a CDI type ignition with a hot coil...

Posted by: KaptKaos Jan 6 2006, 06:39 PM

Flaps dude says that NGK uses a 4 digit number to identify their plugs now. Cross referened on the NGK site as 7432.

http://www.ngksparkplugs.com/apps/car_truck_suv/results.asp?engineid=36076

Posted by: Gearhead1432 Jan 6 2006, 06:50 PM

So does Bosch, but the parts house should still have the cross referance. If they don't they suck because the old numbers are still used all of the time.

I worked at Bow-Bow for a while after highschool good times

Posted by: Dave_Darling Jan 6 2006, 08:13 PM

QUOTE (TROJANMAN @ Jan 6 2006, 04:24 PM)
what kind of problems dave?

Everything from non-functional plugs ("hey, it looks perfect, but it just doesn't spark!") to mysterious no-starts ("it started fine yesterday!) to the little platinum speck coming out of the plug ("is there supposed to be something there?") to the ceramic fracturing inside the combustion chamber.

That last one cost a buddy of mine a 944 engine. He "thought" he had fished all of the pieces out, but one got stuck between the piston and the cylinder surface. Drove it for a bit, and it wound up breaking the cylinder wall!!!!

I decline to state how many of these problems have occured to my 914s over the years. (Sometimes it takes me a while to learn, sadly!)

--DD

Posted by: dmenche914 Jan 6 2006, 09:16 PM

my problem with Bosch platinums was poor performance, switched back to the copper Bosch, and the probelms went away. Why I do not know, but I have experienced it. The platinum plugs "looked" fine but didn't work well.