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I have run all kinds of plugs Autolite, N G K , Chapions, Denso, Pulsar, etc.
Some will say they have seen some performance gains, ,, I haven't so long as it the same plug heat range.
Normaly that is the issue, plus contamination thru the combustion mix that will be the leading cause of issues with plugs,
So guys will change plugs and heat ranges to compensate for such issues.
Besides be amazed as to who makes most plugs anyways!
but I like NGK. I think their manufacturing quality control is better than Champion and others. Ground straps are always positioned the same over the electrodes and gaps are always consistant right out of the box.
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Used Autolite
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Used Autolite
Fixed it for ya,Eric!!!
Quote:NGK race plugs ( non-resister ) come out of the box with the ground straps cut back.
The only difference is the cut back strap vs the
standard strap... a few HP has been seen running
the cut back strap on dynos
EDIT
I changed over to Autolite race plugs with the cut
back strap
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NGK or Autolite.
On dirt cars, Ive seen Champions blow the porcelain out on a few occasions. Only seen it happen to Champions.
Same deal on marine engines,
I just carried one of my new heads into the parts department at work and found a set that fit perfect and screwed them in I don't even know the heat range I just know they work
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Used Autolite
Fixed it for ya,Eric!!!
Perfect!!!!
Russ
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i just recently saw that autolite moved their manufacturing to china? can anyone confirm or deny this? i use their race plugs and if they're being made in china will no longer use them i will be using NGK assuming they're still made in japan
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i just recently saw that autolite moved their manufacturing to china? can anyone confirm or deny this? i use their race plugs and if they're being made in china will no longer use them i will be using NGK assuming they're still made in japan
I think I'll be running NGK now.
Quote:
The only difference is the cut back strap vs the
standard strap... a few HP has been seen running
the cut back strap on dynos
EDIT
I changed over to Autolite race plugs with the cut
back strap
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I thought Autolite moved to Mexico or China years ago? I quit the moment I picked up a set that no longer was made in the USA. Been using NGK ever since. Denso has been good in some cars. Japan > China.
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NGK or Autolite.
On dirt cars, Ive seen Champions blow the porcelain out on a few occasions. Only seen it happen to Champions.
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Bosch are probally the biggest POS Ive ever seen.In 30 years as a tech I cant count how many I had to change because they ran like crap.Seems parts stores like to sell them because they get a kick back from the compant to sell them.I had a firend that brought his SBC into the shop with a miss.I pulled his 8 buck each Boschs out and put ACs in.Ran great after that.Thats not the only one that wouldnt run with them.If you ran good on them go play the lottery.You are lucky.Rocky
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i just recently saw that autolite moved their manufacturing to china? can anyone confirm or deny this? i use their race plugs and if they're being made in china will no longer use them i will be using NGK assuming they're still made in japan
Quote:I'm under the impression that on all NGK plugs the last number or two numbers tell you the heat range, the bigger the number the colder the plug, IE the -8 is hotter than the -11
I started using the Champion C63YC Race plug that cost about $8.00 each, and when I could not get any locally, tried the NGK plugs R5672a-8 and they worked as well or better and only cost $2.00 each.
I have used these plugs in the B-1 B/S heads (11:1 compression) and Edelbrock Victor heads (12.4:1 comp.) In my 505 street engine (10.3:1 comp) with stealth heads, I had to use a hotter plug NGK BKR6E-11, which seems to be working good so far.
Quote:Quote:I'm under the impression that on all NGK plugs the last number or two numbers tell you the heat range, the bigger the number the colder the plug, IE the -8 is hotter than the -11
I started using the Champion C63YC Race plug that cost about $8.00 each, and when I could not get any locally, tried the NGK plugs R5672a-8 and they worked as well or better and only cost $2.00 each.
I have used these plugs in the B-1 B/S heads (11:1 compression) and Edelbrock Victor heads (12.4:1 comp.) In my 505 street engine (10.3:1 comp) with stealth heads, I had to use a hotter plug NGK BKR6E-11, which seems to be working good so far.
