So with the TR-55 plugs, a .050 gap will make it idles rougher?
02-11-2002, 10:29 PM
#1
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So with the TR-55 plugs, a .050 gap will make it idles rougher? Or is that only with the tr 6's? I was just reading another post about this, I have mine gapped at .050 after my cam install, I have exhaust and basic intake stuff, would I benefit from tightening up the gap a bit? Thanks fella's
[ February 11, 2002: Message edited by: brendon ]</p>
[ February 11, 2002: Message edited by: brendon ]</p>
02-12-2002, 09:31 AM
#2
Re: So with the TR-55 plugs, a .050 gap will make it idles rougher? TR55 plugs run at a hotter heat range than the TR6 plugs. That is the main difference. Reducing gap does nothing for performance, this was a topic of heated debates about 3 years ago.
Tony
Tony
02-12-2002, 09:41 AM
#3
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Re: So with the TR-55 plugs, a .050 gap will make it idles rougher? No, that's TR-6s that we were talking about. TR-55s are designed to be run at wider gaps. They come from NGK gapped at about .055. NGK says that you shouldn't change the gap of a plug more than .010 in either direction.
You should be fine where you are. <img src="gr_stretch.gif" border="0">
You should be fine where you are. <img src="gr_stretch.gif" border="0">
02-12-2002, 10:00 AM
#4
TECH Senior Member
Re: So with the TR-55 plugs, a .050 gap will make it idles rougher? Hehe, I sure do remember the heated spark plug gap debates! I believe you and I got into it a few times Tony! <img src="gr_stretch.gif" border="0">
I remember that a few guys were seeing a large dip on the dyno curve with the lower gaps, but it turned out that was a fuel related issue in the end wasn't it?
Personally if I were to do it again, I'd go with TR55s at .050. Back then I ran TR6s at .044 and they worked well for me though.
I remember that a few guys were seeing a large dip on the dyno curve with the lower gaps, but it turned out that was a fuel related issue in the end wasn't it?
Personally if I were to do it again, I'd go with TR55s at .050. Back then I ran TR6s at .044 and they worked well for me though.
02-12-2002, 10:19 AM
#5
Re: So with the TR-55 plugs, a .050 gap will make it idles rougher? The dreaded 5500 rpm "dyno dips" are actually signs of valvefloat. Something us "rookies" back then didn't know about with these LS1s....
<img src="gr_stretch.gif" border="0">
<img src="gr_stretch.gif" border="0">
02-12-2002, 10:28 AM
#6
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Re: So with the TR-55 plugs, a .050 gap will make it idles rougher? I bet my following questions have been posted a least a million times but here goes...I'm about to do a plug/wire swap, what plugs and gap for a bolt-on motor? Also, i've been checking prices of wires: stock replacements are about $10 a piece and the G.M.P.P. wire set (8 wires) is $50, wtf? Are the GMPP's any good? Are the stock ones any better? Also, any other wires you can recommend? Thank you very much for your time!
Chris
Chris
