So i'm going to replace my spark plugs, and I was wondering what the concensus was here. OEM good enough? Or Aftermarket.
Car is a non-turbo with 93,700 miles.
--Rob--
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Changing Spark Plugs
Started by
Account_Deleted_T5M
, Mar 23 2006 05:45 AM
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11 replies to this topic
#1
Account_Deleted_T5M
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Posted 23 March 2006 - 05:45 AM
Sorry to all the people who are still trying to get their money back.
#2
erikv11
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Posted 23 March 2006 - 06:12 AM
QUOTE(96 850GLT @ Mar 22 2006, 11:45 PM) 
So i'm going to replace my spark plugs, and I was wondering what the concensus was here. OEM good enough? Or Aftermarket.
Car is a non-turbo with 93,700 miles.
--Rob--
Car is a non-turbo with 93,700 miles.
--Rob--
Bosch copper FR7DC
$1.50 each at fcpgroton.com
'96 NA 855 | 99 k | daily driver
'95 R 854 | 177 k | project, not running
#3
BeachRat
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Posted 23 March 2006 - 06:26 AM
I LOVE my NGK's (not the iridium ones), but that's turbo. I think they're about $2-3 each.
#4
the underlørd
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Posted 23 March 2006 - 08:28 AM
OEM ALL DAY LONG.
2007.5 Chevy Duramax. Built Tranny. EfiLive. Twin Turbo. 600whp / 1000 ft lbs.
#5
grocerygetter
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Posted 23 March 2006 - 01:31 PM
OEM is the best but also the most expensive. IIRC OEMS are produced by champion and can be purchased at autozone/pep boys for cheap. I believe they share the same numbers on the side of the plug even.
1997 854 T5 :: TME ECU :: TME Cat-back Exhaust :: 17x7.5 Canistos :: Maxxis MA-Z1 215/45ZR17 :: 850R Front Spoiler :: Samco Hoses :: K&N ::
2004.5 S40 2.4i :: Completely Stock ::
2008 Porsche Boxster
#6
robert213
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Posted 23 March 2006 - 03:04 PM
Regarding Spark Plugs wires, take ohms reading of old OEM wires and new wires. Readings should be consistant between wires 1 thru 5. Unless you purchased performance wires, readings of new wires should be slightly less than old ones. Also, the manufacture year (age) is printed on OEM wires. I prefer OEM spark plug wires.
Regarding Cap and Rotor, it is desirable to have brass/copper contacts. More and more aftermarket vendors are switching to cheap aluminum. I prefer OEM Volvo and NAPA/Echlin http://napaechlin.com/. As long as you have brass/copper contacts, you will be fine. If you have aluminum, return and purchase another brand.
I use NGK plugs in all of my Japanese vehicles. With NGK, 6 is a hotter plug than 7, -11 is pre-gapped at 1.1mm (.043inch).
Plugs for Volvo normally aspirated engines are:
Bosch Copper FR7DC, NGK BKR6ES or BKR6E (V-power), Autolite 3923, and Champion RC9YC.
Regarding Cap and Rotor, it is desirable to have brass/copper contacts. More and more aftermarket vendors are switching to cheap aluminum. I prefer OEM Volvo and NAPA/Echlin http://napaechlin.com/. As long as you have brass/copper contacts, you will be fine. If you have aluminum, return and purchase another brand.
I use NGK plugs in all of my Japanese vehicles. With NGK, 6 is a hotter plug than 7, -11 is pre-gapped at 1.1mm (.043inch).
Plugs for Volvo normally aspirated engines are:
Bosch Copper FR7DC, NGK BKR6ES or BKR6E (V-power), Autolite 3923, and Champion RC9YC.
Edited by robert213, 23 March 2006 - 03:06 PM.
'97 854-R White w/ Tan Interior
#7
the underlørd
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Posted 23 March 2006 - 04:29 PM
QUOTE(grocerygetter @ Mar 23 2006, 05:31 AM)
OEM is the best but also the most expensive. IIRC OEMS are produced by champion and can be purchased at autozone/pep boys for cheap. I believe they share the same numbers on the side of the plug even.
see, i think it's work not cheaping out for 40 dollar spark plugs and guaranteeing yourself no misfires..
2007.5 Chevy Duramax. Built Tranny. EfiLive. Twin Turbo. 600whp / 1000 ft lbs.
#8
Account_Deleted_T5M
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Posted 23 March 2006 - 04:34 PM
So volvo OEM plugs are not Bosch? Well that's news to me. Also i'm unfamiliar with gapping of spark plugs, how much of a difference does this make when running them in your car?
--Rob--
--Rob--
Sorry to all the people who are still trying to get their money back.
#9
the underlørd
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Posted 23 March 2006 - 04:38 PM
QUOTE(96 850GLT @ Mar 23 2006, 08:34 AM)
So volvo OEM plugs are not Bosch? Well that's news to me. Also i'm unfamiliar with gapping of spark plugs, how much of a difference does this make when running them in your car?
--Rob--
--Rob--
unless you're HIGHLY modified... just the stock .028 will be just fine for you.
2007.5 Chevy Duramax. Built Tranny. EfiLive. Twin Turbo. 600whp / 1000 ft lbs.
#10
grocerygetter
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Posted 23 March 2006 - 09:37 PM
I am about 99.9% sure the OEMs are manufactured by champion, the part number on the side of either is the same. Just a private label deal with Volvo. I forgot the model name for the champions but they are $2/piece at your local autoparts store, not worth paying the volvo price for some ink.
1997 854 T5 :: TME ECU :: TME Cat-back Exhaust :: 17x7.5 Canistos :: Maxxis MA-Z1 215/45ZR17 :: 850R Front Spoiler :: Samco Hoses :: K&N ::
2004.5 S40 2.4i :: Completely Stock ::
2008 Porsche Boxster
#11
sp5368
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Posted 23 March 2006 - 10:59 PM
NGK's work great
Black 1997 850 Glt . Upsolute chip 14psi 16T 3" downpipe 2.5'' exhaust magnaflow .Quickbrick end links. K&N. Est springs . Bilstien TC shocks . Ipd rear sway bar. Samco/HoseTechniques Hoses . 215/45/17 Perelli P Zero . Nero ms . 17" Sport Edition wheels. Most important Covercraft weathershield car cover
#12
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Posted 24 March 2006 - 05:19 AM
QUOTE(robert213 @ Mar 23 2006, 08:04 AM)
NGK BKR6ES or BKR6E (V-power), Autolite 3923, and Champion RC9YC.
That's it. Those puppies are great! 0.028 is what you want for stock, gap them down if you're chipped.
QUOTE(robert213 @ Mar 23 2006, 08:04 AM)
Autolite 3923
NO NO NO NO!!!!
QUOTE(sp5368 @ Mar 23 2006, 03:59 PM)
NGK's work great
See!?
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