Spark plug question.
Sep 15, 2011, 07:00 PM
#1
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Spark plug question.
I know there are many things about what spark plug to use but i would like to know when to run a colder plug.
I have cams, springs retainers, o2 housing and full exhaust, also fuel pump. Should i go to a colder plug?
I see that STM's website says the BPR8ES is one step colder and the BPR9ES is for highly modified cars with lots of boost.
Should i try to go to a BPR8ES on my car? I wouldnt consider myself highly modified or running alot of boost(tuned for 26)
I have cams, springs retainers, o2 housing and full exhaust, also fuel pump. Should i go to a colder plug?
I see that STM's website says the BPR8ES is one step colder and the BPR9ES is for highly modified cars with lots of boost.
Should i try to go to a BPR8ES on my car? I wouldnt consider myself highly modified or running alot of boost(tuned for 26)
Sep 15, 2011, 08:02 PM
#2
I know there are many things about what spark plug to use but i would like to know when to run a colder plug.
I have cams, springs retainers, o2 housing and full exhaust, also fuel pump. Should i go to a colder plug?
I see that STM's website says the BPR8ES is one step colder and the BPR9ES is for highly modified cars with lots of boost.
Should i try to go to a BPR8ES on my car? I wouldnt consider myself highly modified or running alot of boost(tuned for 26)
I have cams, springs retainers, o2 housing and full exhaust, also fuel pump. Should i go to a colder plug?
I see that STM's website says the BPR8ES is one step colder and the BPR9ES is for highly modified cars with lots of boost.
Should i try to go to a BPR8ES on my car? I wouldnt consider myself highly modified or running alot of boost(tuned for 26)
At your power level I would suggest a BPR8es or a BR8es.
-Em
Sep 15, 2011, 08:03 PM
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if you had an 8 with more mods, i would say colder plugs. with a 9, stick with stock plugs unless you're heavily modified.
if it isn't broke (misfires, etc) don't fix it.
if it isn't broke (misfires, etc) don't fix it.
Last edited by jvlazzar; Sep 15, 2011 at 08:10 PM.
Sep 15, 2011, 08:07 PM
#4
My fault. Did not realize this is for a 9.
We run these with good luck.
http://www.streettunedmotorsports.co...ium_ilfr7h.htm
Hope that helps.
-Em
We run these with good luck.
http://www.streettunedmotorsports.co...ium_ilfr7h.htm
Hope that helps.
-Em
Sep 15, 2011, 08:18 PM
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My fault. Did not realize this is for a 9.
We run these with good luck.
http://www.streettunedmotorsports.co...ium_ilfr7h.htm
Hope that helps.
-Em
We run these with good luck.
http://www.streettunedmotorsports.co...ium_ilfr7h.htm
Hope that helps.
-Em
Thanks Emery, i was going to shoot you a message on facebook to see what you would suggest.
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Sep 15, 2011, 10:39 PM
#9
On a side note, I thought the BPR7es were stock and BPR8es were colder, for higher boost and such. At least thats what the parts are in the DSM world.
Sep 16, 2011, 02:22 PM
#10
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What made you pick up some Denso's? I have run NGK in all of my DSM's that were for many different driving purposes. They have never let me down.
On a side note, I thought the BPR7es were stock and BPR8es were colder, for higher boost and such. At least thats what the parts are in the DSM world.
On a side note, I thought the BPR7es were stock and BPR8es were colder, for higher boost and such. At least thats what the parts are in the DSM world.
Sep 16, 2011, 03:21 PM
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There are a few problems with most of the spark plug discussions on evom.
1. People fail to understand that the Evo 9 and the Evo 8 use a different plug, and respond to a heat range change very differently (or so I'm able to surmise).
2. People when offering advice on plugs fail to say whether it worked well on an 8 or a 9.
1. People fail to understand that the Evo 9 and the Evo 8 use a different plug, and respond to a heat range change very differently (or so I'm able to surmise).
2. People when offering advice on plugs fail to say whether it worked well on an 8 or a 9.
Sep 17, 2011, 09:29 AM
#13
I always try to run stock range plugs. You don't want to get to cold of plugs. On E85 at 750whp and 40+psi I am still able to run stock plugs with no problem. If you are trying to make high hp/boost on 93 than I would go a step colder. On E85 we usually run stock range.
Mikey
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