Gap for NGK TR55`s ?

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Nov 4, 2002 | 09:01 PM

02 Silver Z

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From: Westland, MI.

Gap for NGK TR55`s ?

What are you guys gapping your 55`s at for standard N/A application?

Nov 5, 2002 | 12:55 AM

TomQ

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Re: Gap for NGK TR55`s ?

leave it like it is and don't change

Nov 5, 2002 | 01:00 PM

promod1955

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From: Virginia Beach, VA

Re: Gap for NGK TR55`s ?

i highly suggest NOT putting them in straight out of the box. you'll be amazed at how far off some of them are compared to others. most people gap them around .050.

Nov 5, 2002 | 03:12 PM

02 Silver Z

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From: Westland, MI.

Re: Gap for NGK TR55`s ?

<blockquote>quote:<hr />Originally posted by TomQ:
leave it like it is and don't change<hr /></blockquote>Are you saying don`t change the gap on the plugs as they come or do you mean the car itself? If you are saying don`t change the car, too late!! I just haven`t figured how to change my sig yet! <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Nov 5, 2002 | 08:50 PM

Farmer2

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From: Chicago Far Far South Subs

Re: Gap for NGK TR55`s ?

Stock setting should be .059 but for every 50 HP you add you should drop off .004.

Nov 5, 2002 | 08:55 PM

LOnSLO

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From: Gainesville, GA

Re: Gap for NGK TR55`s ?

Tr55's come pregapped at .06. That is the stock spec. However, refer to Farmer2's post and adjust accordingly. FWIW, I have mine gapped at .05, and I dynoed 387rwhp.