Skydog
TY 4 Stroke God
With boost! I know a colder plug would be good. How often should we change them? Are you closeing the gap alittle for boost?
Thank you Skydog
Thank you Skydog
Ted Jannetty
TY 4 Stroke God
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I run NGK CR9EIX Iridium plugs at .022 gap with stock ignition.
Will go back to stock gap with MSD ignition.
Will go back to stock gap with MSD ignition.
Skydog
TY 4 Stroke God
Ted you think a NGK CR10EIX would be better for pushing the edge? I do love the NGK EIX plugs! That is the plug i run in my 300HP drag boat they clean out real quick!
Thank you Skydog P.S. What is stock gap?
Thank you Skydog P.S. What is stock gap?
Ted Jannetty
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NO I don't thinks so, We ran 30 Psi boost ( Not my Sled) with stock plugs CR9 and the color was perfect.
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30 PSI...my poor old motor...LOL!
Skydog
TY 4 Stroke God
Thank you !! So a colder plug does not help with deto? I have 10s in mine right now.
Skydog
Skydog
Ted Jannetty
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I don't think you can go wrong either way as long as your tune up is good.
Heat range has more to do with the ability to keep it self clean, you will probably find you will have to change out the 10's more often due to carbon build up.
A plug that is too hot can cause detonation but I don't think 9's are that hot.
Heat range has more to do with the ability to keep it self clean, you will probably find you will have to change out the 10's more often due to carbon build up.
A plug that is too hot can cause detonation but I don't think 9's are that hot.
Skydog
TY 4 Stroke God
What is the stock gap?
Thank you Ted!!
Thank you Ted!!
SUPERTUNER
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Ted Jannetty said:
I am willing to bet the Iridium plugs are taking away about 4 HP versus the CR10EK's. Especially at big boost.
Freddie
hot rod rooster
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i am running the cr10ek plug and they seem to be fine!
Skydog
TY 4 Stroke God
I put CR10EK back in.
Skydog
Skydog
What gap are you putting on the CR10EK.
Skydog said:What is the stock gap?
Thank you Ted!!
The stock gap is anywhere from .028 to .031 this is for the rx-1 and right from the manual.
rxrider
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Stock NGK CR9E
Freak
TY 4 Stroke Junkie
Stock here. I think fancy plugs are snake oil but thats just me.
