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Spark Plug Gaps

99GTPguy87

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Just a quick question for you guys. I got some NGK TR55's to install into my 1999 GTP .. Just wanted to know what I should do for the plug gap? Also is there a certain tightness I should be applying when putting these in?

Thanks in advance
-Brian-
 

Royalgtp

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They do not need to be to tight at all.....just turn till tight....thats all.


Gapping would depend on mods....

Are your NGKs 1-2 colder?
 

99GTPguy87

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Originally posted by RoyalGTP@Aug 31 2005, 09:19 PM
They do not need to be to tight at all.....just turn till tight....thats all.


Gapping would depend on mods....

Are your NGKs 1-2 colder?
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My current mods are U-bend removal, new CAI , 3.25 pulley and aftermarket PCM ( DHP 1.0 ) And the spark plugs are one range colder

Also while im at it, what exactly needs to be done to install a new Tstat? and would a 180 be fine for me?
 

Royalgtp

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195 is stock.....180 is aftermarket......yes get a 180


Are you sure your 3.25 is running ok? Scanned on a hot day or around the low 80s?


Check that KR first.
 

99GTPguy87

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Honestly, I was running the 3.25 with just an aftermarket PCM and never had problems with it. Right now ALL I do is highway driving, and I personally believe that I wont have a problem with the mods if i get my plugs and tstat in place doing highway driving. I will be doing exhaust once I find a good place that will bend custom pipes for me, because spending 1000-1500 bucks for a full exhaust doesnt appeal to me. If you have any suggestions on that, that'd be great also.

My original question still needs an answer if anyone can help. I'm going to just assume it's same as stock or gap them around .056 or .057 or so.
 

Royalgtp

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3.4 is a lot for most people with more mods then you....


Id protect the engine first and scan...
 

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