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spark plugs all motor

Old 04-07-2007, 04:26 PM
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Default spark plugs all motor

i know this is homemadeTURBO but i wanted to know if you should stick with the stock plug rating when dealing with a higher than stock CR on an all motor build or if you should change the heat range like on a turbo setup. is there a general rule for choosing a plug for a motor application? and what is the resoning for changing the plug? school me...
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Old 04-07-2007, 04:57 PM
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Default Re: spark plugs all motor

nkg bkr7e-11
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Old 04-07-2007, 05:05 PM
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Default Re: spark plugs all motor

compression/cams/static compression etc have all a role



Im assuming your talking what 99 percent people do slap oversized cams in a stock motor with a poor flowing head,manifold and undersized throttle body because you heard volume was a waste of time according to h-t but a hondata intake gasket will make you king of the streets



stock ngk range
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Old 04-07-2007, 05:18 PM
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Default Re: spark plugs all motor

lol no im not overcammed iam pretty aware of engine dynamics even though iam askin the newb question on plugs. the motor i have is nothing crazy just a b18c1 with usdm itr pistons valvetrain and buddyclub spec3+ cams. blox im and 4-1 2.5 collector header with full exhaust. i had a portmatched TB but have been playing with the size i want to stick with since i feel its losing velocity and thus power for the powerband that the car is in right now. i just wanted to now if there was power to be had chaging the plug range since the compression has been uped a little. i appreciate the comments so far....
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Old 04-07-2007, 06:38 PM
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Default Re: spark plugs all motor

that compression change is minimal stock range


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Old 04-07-2007, 06:51 PM
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Default Re: spark plugs all motor

when would you want to change then when your compression range is 12+ or when you need to change to run race gas or somthing? im just curious so ill know..
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Old 04-07-2007, 07:13 PM
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Default Re: spark plugs all motor

not sure when you should change plug rating but i am runing the rocket motorsports modified autolites and they are working just fine for me.
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Old 04-07-2007, 07:23 PM
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Default Re: spark plugs all motor

More about dome design etc something that will take way more info than Im willing to give out for free.
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Old 04-07-2007, 08:15 PM
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Default Re: spark plugs all motor

Originally Posted by chris
compression/cams/static compression etc have all a role



Im assuming your talking what 99 percent people do slap oversized cams in a stock motor with a poor flowing head,manifold and undersized throttle body because you heard volume was a waste of time according to h-t but a hondata intake gasket will make you king of the streets



stock ngk range
LMAO!!!! change plug for hight CR?
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Old 04-08-2007, 02:31 PM
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Default Re: spark plugs all motor

Originally Posted by Walter
LMAO!!!! change plug for hight CR?
id def change your plug heat range if you have higher than stock compression and have larger injectors,, when i had a b16 with ctr pistons and xsi cams i always ran bkr7e11's 6e11 and 6es's burnt up to fast
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