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What is the best performing spark plug for the LS1?
Does anyone disagree with the long service interval on the 02 LS1 spark plug change ? Benefits of 60K change or just more risk of damaging something...
Any advice on changing plug wires and/OR plugs? I heard that the head bolts are the same size on one of the years...
NGK TR55's :yup:
I'll second that.Quote:
Originally Posted by Mr. Luos
do they add hp?
Only if the stockers are REALLY bad.
so thats basically a no lol
Plugs shouldn't add power.
It is a maintenance item, not a performance mod.
TR55's for sure
I got TR55's but the gap is not the same on all plugs. What should I gap it to for a natural aspirated mildly modded motor (for now mwahahahaha)?
another vote for TR55's
TR55's fo sho
.055"Quote:
Originally Posted by Kaution vBi
why the gap at .055? I thought the manual called for .044 or something.
Stock is .060" IIRC, but I believe there was a TSB to gap them to .040" to cure erratic idle problems in some cars. :dunno:
Stock is 0.060"Quote:
Originally Posted by shadowsnkx
Gap for the TR55's on a stock or near stock motor should be set at .055".
I think the iridium plugs call for lower gaps.
I'm actually going to replace my plugs soon also, are the NGK TR55's you guys mention the "V-power" ones or the "iridium" or ?
Sorry, I'm an LS1 n00b, came from the world of Modular Fords:scare:
I have gotten pretty quick at the change, and change my plugs yearly. I run the V-Power type. $2 each.Quote:
Originally Posted by david_viny
The iridium ones are like $8 a pop, but will last 3-4 times as long.
Anutha vote 4 the NGK TR55's-just bought 4 today cuz they only had 4 last week & they're $2.09/ea at AutoZone (part #3951) :cool:
has any one tryed the e-fire plugs on hours power tv thay tested beter then the leading brand just wanted to know what you guys think
You mean the e3 plugs?? We sell them at work, I've sold a bunch for lawnmowers and small engines, but none yet for cars because we don't keep them in stock. They make all kinds of claims about better spark and increased efficiency, never seen any hard evidence though.Quote:
Originally Posted by 01 T/A
I run NGK Iridiums, btw.
ya thats what i ment. i just saw what thay sead on tv thats y i would like to see what some one has to say that has used them thanks
Iridiums would allow you to open up the gap vs an equiv Copper plug. I'm actually surprised that a copper plug is the plug of choice since the change intervals are only about 10K. By the time you hit 60K you will need 6 plug changes and your time changing the spark plugs which ends up costing more, is a PITA changing plugs, all for less power. (We have done back to back dynos to verify this)Quote:
Originally Posted by Mr. Luos
While the iridium design does last longer the ignitibility potential of the fine wire design does improve the combustion process. Jump into the thread I just made, I can show you some bench test results of a fine wire design vs a copper design. :)
I think anything other than copper burns too hot for the engine.
That is a myth. Since the copper has a larger surface area it actually absorbs more heat then a fine wire electrode. When you absorb heat your absorbing energy from the flame front causing a loss of power. Not to mention fine wire electrodes come stock on almost all cars these days.Quote:
Originally Posted by shadowsnkx
just put in the TR55's yesterday. runs much stronger than the stock wire-type ones with 87K on them. The old plugs are amazing to me -- so much use from a plug.
the low resistance wires seem to improve the low end torq. But what I learned from my Yukon with a 5.3L is that the low res. wires burn out stock plugs FAST. I ended up going back to stock 7mm wires and factory plugs on the Yukon and it runs fine. It seems new is good in the ignition department -- not the 50K-100K interval.
I'll probably run the TR55's for 15-20K miles and switch back to factory stuff to see the difference.
I do think the V helps the LS1...
Spark plugs and plug wires should NEVER add performance or power.
grabbing some ngk tr55s today thanks for the great link....
You need to study up on WeaponX :kick:Quote:
Originally Posted by Mr. Luos
:spit: