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Old 05-05-2001, 07:53 PM   #1
dandbest
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Question Changed my spark plugs today....

Hey everyone!
Today I changed the plugs on my 01RS, and ofcourse, yet again (I had a 99RS)I found Champions in the motor. First, my car only has 7500 miles, but from everything I've heard on the board, I decided to change them.
So, I looked in the owners manual, and it called for NGK BKR6E-11. So I went and bought them. When I had my 99RS, the owners manual called for NGK BKR5E-11, so thats what I put in it. I still have the old Champion plugs from the 99RS and they are the same part number as those I took out today, out of my 01RS. I'm very curious as to why the 99RS uses the BKR5E-11 and the 01RS uses BKR6E-11. If someone has the answer, please tell me.

Thanks in advance
Danny
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Old 05-05-2001, 08:21 PM   #2
jacktam1
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coz my98 and my99 use +5(hit range),my00+ uses +6,1 degree different!
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Old 05-05-2001, 08:34 PM   #3
dandbest
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Ok, but my question is why do they use different heat ranges!

Thanks again
Danny
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Old 05-06-2001, 01:07 AM   #4
jacktam1
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from what I know,MY00+'s ignition timing are more advanced, so it uses colder spark plugs.
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Old 05-06-2001, 07:56 AM   #5
dandbest
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If that is true, why do both years use the same Champion spark plug to begin with? Same part number, which would suggest that nothing has changed as far as fuel and timing is concerned. Right?

Danny
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Old 05-06-2001, 09:38 AM   #6
PunksWRX
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Danny,

Did you remember to use anti-seize on the threads?

Punk
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Old 05-06-2001, 11:21 AM   #7
ARG
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Yep, my car had "Chumpions" also....

ARG
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Old 05-06-2001, 04:32 PM   #8
ColinL
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danny, the colder plugs arrived in MY00 with the 10.0:1 compression ratio. NGK "6" heat range is correct for this model year and newer.

98-99 2.5RS with 9.7:1 CR (dohc or sohc) use an NGK "5" heat range.

I ran an NGK 6 heat range in my cammed '99 RS for about 2 weeks and noted a bit less performance and definitely a poorer idle quality. Back to the 5s now...
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Old 05-06-2001, 06:01 PM   #9
Overtime
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Doh! I bought the 6s per NGK's reccomendation.

I'd be really torqued off if they were more than $6.50 a set.
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Old 05-06-2001, 06:31 PM   #10
dandbest
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PunksWRX- Yes I did remember to put anti-seize on the threads, but couldn't find my torque wrench, so I didn't torque them down right. I just did it first by hand, and then like half a turn with the ratchet. I wonder if that's OK... Should I take them out and redo it?
Colin, thanks for explaining it! Thank YOU.
By the way, why do 99 and 01 use the same part number Champion plug? Colin?

Danny

[This message has been edited by dandbest (edited May 06, 2001).]
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Old 05-07-2001, 07:30 AM   #11
ColinL
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I may still have my stock chumpions somewhere, but I don't know what part number they are. It doesn't matter much-- I wouldn't put champion plugs in my lawnmower.
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Old 05-07-2001, 01:21 PM   #12
Michael
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well since we are on this topic
what is the gap on the plug did you guys set at?
thanks
michael

[This message has been edited by Michael (edited May 07, 2001).]
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Old 05-07-2001, 06:00 PM   #13
dandbest
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Mike, the owners manual says to set the gap between .039-.043, so I set it at .042 .

Danny
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Old 05-07-2001, 08:44 PM   #14
Michael
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Cool

thanks dan
sheesh... that was in the owners manual?
i must have mis it some how....
thanks again dan
michael
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