PLUG Gap ?
Thread Starter
Launching!
Joined: Feb 2005
Posts: 253
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From: Los Angeles, CA
Originally Posted by ringram
Yep bigger is better... as long as it works.
I have mine gapped at 38 right now for a 150 shot of nitrous.
Would it be better for me to just use plugs gap to 38 when I am using the nitrous. Then just use 50 when I am driving around.
Originally Posted by edlt1
so bigger gap is better?
I have mine gapped at 38 right now for a 150 shot of nitrous.
Would it be better for me to just use plugs gap to 38 when I am using the nitrous. Then just use 50 when I am driving around.
I have mine gapped at 38 right now for a 150 shot of nitrous.
Would it be better for me to just use plugs gap to 38 when I am using the nitrous. Then just use 50 when I am driving around.
The plugs that we're talking about in this thread however are the TR55s (not for N2O use) so if your spraying on TR55s then you need to get them outta there asap.
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TECH Senior Member
Joined: Mar 2004
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From: BFE
I do not think you are understanding.
For nitrous you use at least 1 range colder plug for up to 150 shot.
It is gapped tighter because under nitrous, the cylinder pressures are so high that it could blow the spark if gap is too large. Tight gaps reduce that effect.
NA, too large a gap can induce missfire for the same reasons under high rpm.
sorry to bring this old post up again but i just got some tr6's and im not quite sure what to gap them to. Im not sure if how much power it makes matters but just incase they are going on a 468rwhp N/A LS1. im guessing somewhere around .40 to .50 but i just want to make sure. thanks guys
Originally Posted by PREDATOR-Z
.060 is too big
.050
He is prolly experiencing missfire
.050
He is prolly experiencing missfire
it says .060 on the info sticker under the hood.
I'm disturbed to find out that my Delco Iridiums are supposed to be gapped at .040, but on the package it says to gap to factory specs.
well, I guess I'll hafta spend another 60 bux, cuz I put around 5k on these plugs in a new engine and I don't wanna do the job twice.
so with a .020 'overgap', how much power am I losing? I mean are we talking 5-10 or 20-30? I've never had plugs that were gapped wrong (always used stock plugs and factory gaps), but I did notice the car was a little sluggish, all this time, I thought i just had high expectations, lol
