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Discussion Starter #1
For all of those that have turboed their GA16, what type of spark plugs is everyone using and what gap size are your running? A question was brought up to me today in regards to this on a turbo application and I was informed that a lower setting would be better. I am currently running the stock setting and I'm not having any issues but I was wondering if lowering the gap width would make a difference?

Thanks for any responses.

Chef
 

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Not Anymore.
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5,014 Posts
How much more power are you running over the stock engine?
IIRC for every 50-75 HP you go over stock, it is wise to go with one step colder of a plug. I prefer irridium plugs. When I changed mine from platinum (which were in good condition) to NGK Irridium IX, the idle felt a lot smoother and the car had a much easier time starting.

This is a good site for learning spark plugs
http://sparkplugs.com/sparkplug411.asp?mfid=1

When it comes to gapping
http://sparkplugs.com/faqmain.asp?mfid=1
 

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Destroyer of Engines
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561 Posts
chef said:
For all of those that have turboed their GA16, what type of spark plugs is everyone using and what gap size are your running? A question was brought up to me today in regards to this on a turbo application and I was informed that a lower setting would be better. I am currently running the stock setting and I'm not having any issues but I was wondering if lowering the gap width would make a difference?

Thanks for any responses.

Chef
I'm running .032 running .035 caused breakup.
 

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Discussion Starter #5
Thanks for everyone's replies and information. I'm going to play around with different plug settings and see what works good then.

Again thanks

Chef
 

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Powered By hopes & dreams
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8,328 Posts
.020" is too close IMO. anywhere from .025"-.032" would be fine, of course if it misses up top, close it up.

1 step colder is good too BKR6E
 

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I'm currently using the NGK platinums PFR6B-11, they are working pretty good. Mike K wrote a pretty good article plugs for the ga16de... it can be found here
-dave
 
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