Hurricane
Expert Class
Posts: 173
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posted October 01, 2008 07:53 AM
New Spark Plugs?
I read a couple of threads that said changing your plugs adds horsepower. I have 5400 miles on my 07 that seems to run ok. The dyno said 156.6 HP (I was disappointed). Do you think changing plugs would help? If so, what are the best spark plugs to buy?
  
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johnnyrocketzx14
Expert Class
Posts: 207
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posted October 01, 2008 01:12 PM
 Edited By: johnnyrocketzx14 on 1 Oct 2008 21:14
i changed mine and gained over 1/10th in the 1/4mi. and 4-5MPH !! It was the best 1/4mile times i have ever had on motor and pump gas( better than the 2 weeks before on NOS and race fuel) I only had 4000miles on mine. I got the NGK CR10EK's. Cant wait to see what it does on spray now
i will get it back on the dyno and see what the differance is, it was just on one 1 1/2 months ago
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07 ZX14
Brocks Sidewinder, Stretched, lowered, strapped,Drag seat, PCIII W/Hub, No flies, BMC, Speedo Healer, Muzzy NOS/Shifter,
1.41 60, 5.77 1/8th 8.89 1/4
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Hurricane
Expert Class
Posts: 173
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posted October 01, 2008 03:19 PM
Wow! Thats a big difference!
Now I wonder how many miles you get, before the plugs start losing power?
Please keep me posted on your results. Thanks for the info...
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johnnyrocketzx14
Expert Class
Posts: 207
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posted October 01, 2008 03:49 PM
miles would depend on the map and running conditions, i have ran mine in brackets on the NOS map and didn't spray because i didnt need to. I am sure that may have something to do with premature wear on my plugs
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07 ZX14
Brocks Sidewinder, Stretched, lowered, strapped,Drag seat, PCIII W/Hub, No flies, BMC, Speedo Healer, Muzzy NOS/Shifter,
1.41 60, 5.77 1/8th 8.89 1/4
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Hurricane
Expert Class
Posts: 173
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posted October 01, 2008 04:18 PM
I drive mine on the street only. Do you suggest the NGK CR10EK or a 9EK?
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dcjens
Pro
Wet side of Washington
Posts: 1059
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posted October 01, 2008 05:19 PM
I just turned 11K on my 06. I got it with 6K miles this spring. Ive been thinking of changing them although it runs great. Winter list of things to do? air filter,tires,plugs, sprocket change?
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Black 06
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johnnyrocketzx14
Expert Class
Posts: 207
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posted October 01, 2008 06:18 PM
i would prob go with the originals CR9EIA i think, i went 1 step cooler for NOS reasons
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07 ZX14
Brocks Sidewinder, Stretched, lowered, strapped,Drag seat, PCIII W/Hub, No flies, BMC, Speedo Healer, Muzzy NOS/Shifter,
1.41 60, 5.77 1/8th 8.89 1/4
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Hurricane
Expert Class
Posts: 173
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posted October 01, 2008 09:27 PM
Will do, CR9EIA is what the dealer also suggested. I will let you know if it makes a difference. Thanks for your help...
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