9's all four spark plugs ?
10-10-03, 11:03 AM
#1
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9's all four spark plugs ?
i want to know if its true that people use the four aparks 9's..if its real why more hotter plugs??i want to know because im gonna replace my plugs soon
thanks
thanks
10-10-03, 12:34 PM
#4
If you drive your car in town and on the freeway almost exclusively don't install the 9s all the way around you'll lose power because they'll foul due to running to cold. The 9s do make cold start slightly rougher also.
If you do a lot of track events, etc then run the 9s.
If you do a lot of track events, etc then run the 9s.
10-10-03, 01:06 PM
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I would recomend running all 9's all the time. Mazda put the 7's in only for emissions reasons, they are not good for the car. Using 7's is sort of like saying that the precat is good for your car.
9's all the way around should last you about 10,000 miles depending on how rich you run.
9's all the way around should last you about 10,000 miles depending on how rich you run.
10-10-03, 02:10 PM
#6
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I agree, had the damn problem all the time with running 9's. Went' back to 7's and 9's and no problem
Originally posted by turbojeff
If you drive your car in town and on the freeway almost exclusively don't install the 9s all the way around you'll lose power because they'll foul due to running to cold. The 9s do make cold start slightly rougher also.
If you do a lot of track events, etc then run the 9s.
If you drive your car in town and on the freeway almost exclusively don't install the 9s all the way around you'll lose power because they'll foul due to running to cold. The 9s do make cold start slightly rougher also.
If you do a lot of track events, etc then run the 9s.
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10-10-03, 02:23 PM
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I've ran all 9s for 2 sets now and haven't notice any loss of power. I agree that start up sometimes will be a little rougher (If you park inside a closed garage it's more smoother during startup) but I ain't trippin over something small like that.
-Dan
-Dan
10-10-03, 05:35 PM
#9
Sorry for the ignorant post folks, but I haven't put enough miles on my engine just yet to have had to replace my plugs. How tough is it to replace them, and what sort of time committment is required?
What brand plugs do you use? Cost?
What brand plugs do you use? Cost?
10-12-03, 03:16 PM
#13
Originally posted by Icemastr
It takes about 5 minutes to change the spark plugs, they are pretty cheap too.
It takes about 5 minutes to change the spark plugs, they are pretty cheap too.
P
10-12-03, 06:13 PM
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Originally posted by Icemastr
It takes about 5 minutes to change the spark plugs, they are pretty cheap too.
It takes about 5 minutes to change the spark plugs, they are pretty cheap too.
btw, anyone knows which store has the lowest prices on plugs?
10-13-03, 06:19 PM
#17
Place your ad here...
I used to use 7's and 9's, but I have recently changed to 9's all around. Noticed that the small amount of ignition breakup I had went away (of course, that could just be due to the fact that the old 7's were pretty fouled).
I have noticed ZERO starting problems (starts just as easy as it did before). Runs perfectly fine even when cold. Only been running 9's for about 2000 miles, but they have not yet fouled out.
I never understood why people change plugs from the bottom. Takes me an absolute maximum of 5-10 minutes to change them from the top. Just need to pull off the elbow, and then the plugs are right there... Seems to me that jacking the car up to get them from the bottom would take more time...
Rob
I have noticed ZERO starting problems (starts just as easy as it did before). Runs perfectly fine even when cold. Only been running 9's for about 2000 miles, but they have not yet fouled out.
I never understood why people change plugs from the bottom. Takes me an absolute maximum of 5-10 minutes to change them from the top. Just need to pull off the elbow, and then the plugs are right there... Seems to me that jacking the car up to get them from the bottom would take more time...
Rob
10-13-03, 06:23 PM
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Originally posted by SanJoRX7
Sorry for the ignorant post folks, but I haven't put enough miles on my engine just yet to have had to replace my plugs. How tough is it to replace them, and what sort of time committment is required?
What brand plugs do you use? Cost?
Sorry for the ignorant post folks, but I haven't put enough miles on my engine just yet to have had to replace my plugs. How tough is it to replace them, and what sort of time committment is required?
What brand plugs do you use? Cost?
10-13-03, 09:58 PM
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Originally posted by saxyman990
I never understood why people change plugs from the bottom. Takes me an absolute maximum of 5-10 minutes to change them from the top. Just need to pull off the elbow, and then the plugs are right there... Seems to me that jacking the car up to get them from the bottom would take more time...
I never understood why people change plugs from the bottom. Takes me an absolute maximum of 5-10 minutes to change them from the top. Just need to pull off the elbow, and then the plugs are right there... Seems to me that jacking the car up to get them from the bottom would take more time...
btw, 15 min for just changing plugs, not including jacking up the car, putting stands, etc
10-13-03, 11:03 PM
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Originally posted by saxyman990
I never understood why people change plugs from the bottom. Takes me an absolute maximum of 5-10 minutes to change them from the top. Just need to pull off the elbow, and then the plugs are right there... Seems to me that jacking the car up to get them from the bottom would take more time...
Rob
I never understood why people change plugs from the bottom. Takes me an absolute maximum of 5-10 minutes to change them from the top. Just need to pull off the elbow, and then the plugs are right there... Seems to me that jacking the car up to get them from the bottom would take more time...
Rob
10-14-03, 02:57 AM
#22
Since it's so easy, apparently, I might just replace my current plugs with 7's and 9's, and then put a fresh set of gapped 9's in before track time, since when I drive on the street it's generally pretty mellow.
Patrick
Patrick
10-14-03, 03:47 PM
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Originally posted by saxyman990
Noticed that the small amount of ignition breakup I had went away (of course, that could just be due to the fact that the old 7's were pretty fouled)
Noticed that the small amount of ignition breakup I had went away (of course, that could just be due to the fact that the old 7's were pretty fouled)
10-14-03, 04:20 PM
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Originally posted by Tanabe
breakup where? i have breakup near redline sometimes, will 9's all around have any effect on this? good/bad
breakup where? i have breakup near redline sometimes, will 9's all around have any effect on this? good/bad