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Autolite closing

  • Thread starter Thread starter FastDriver
  • Start date Start date May 3, 2026
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FastDriver

I was uncomfortably high & wearing a helmet
SN Certified Technician
Sep 5, 2001
6,068
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Vass, NC
May 6, 2026
#21
  • May 6, 2026
  • #21
revhead347 said:
I love it when someone else does all the work for me. I probably should change the plugs before I take my car in for the tune. I have found chatgpt to give dubious information at times. It's reading all the misinformation people put on forums, and presents it as a fact. When I was a parts manager I knew how cross plugs like a king. It's a skill set I have lost. I have to have my plugs gapped at like .030" for the nitrous.

Kurt
Click to expand...
Noobz347 said:
Yes. You gotta know enough to know when it's taking you down the path of BS.
Click to expand...
Yep. I traded like I treat messages from anybody I'm reading for the first time in the forums. It's a good starting place but validation and ultimate responsibility lands on the person doing the research.

One more note for anyone who's considering the 5671a type plugs that I mentioned, they don't have a resistor, and maybe that's why Grover's tack jumps around sometimes. I don't have that problem in Father time because it has a race pack Dash. I don't know that that's what's causing it but when I read about the lack of a resistor the other night, it occurred to me.
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
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#22
  • May 6, 2026
  • #22
FastDriver said:
Yep. I traded like I treat messages from anybody I'm reading for the first time in the forums. It's a good starting place but validation and ultimate responsibility lands on the person doing the research.
Click to expand...

I always ask chatgpt "where did you find this?" I often get a dubious answer.

Kurt
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
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Box behind Walmart
May 6, 2026
#23
  • May 6, 2026
  • #23
revhead347 said:
I always ask chatgpt "where did you find this?" I often get a dubious answer.

Kurt
Click to expand...

This might help you too: You can give it instructions to remember about where [not] to source.

I have a whole list with bookface and reddit; right at the top. I review it periodically to ensure it remembers.
 
Reactions: 91AOD5.0LX, General karthief and revhead347

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,802
3,935
183
Claremore, OK
May 7, 2026
#24
  • May 7, 2026
  • #24
Well all 72 plugs showed up and look good. Packaging was less than stellar but they made it.

 
Reactions: General karthief and Bullitt347
J

JMG9350

Active Member
May 9, 2022
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Wyoming
May 7, 2026
#25
  • May 7, 2026
  • #25
Does NGK make a resistor type, non projected, gasket seat spark plug in the 8 or 9 cold range for TFS 11R heads? Or, what heat range is appropriate for a 200hp dry shot on a progressive controller?
 
Reactions: nicholase

FastDriver

I was uncomfortably high & wearing a helmet
SN Certified Technician
Sep 5, 2001
6,068
2,671
224
Vass, NC
May 8, 2026
#26
  • May 8, 2026
  • #26
I wouldn't go colder than 8. It's pretty damn cold and equivalent to 3922 or so. I'm running a 3923 in my daily with a 150 wet shot. Your compression and tune of course play into this, so of course read the plugs and give the car what it wants. Now back to your question, I asked chatGPT the other night for the same thing and the answer was no. If you find something else, let me know too. That said, it looks like it's either projected tip streetcar type plug, or race plug.
 

TOOLOW91

If you're the village idiot what's that make me?
20+ Year Stangneter
Nov 29, 1999
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#27
  • May 8, 2026
  • #27
JMG9350 said:
Does NGK make a resistor type, non projected, gasket seat spark plug in the 8 or 9 cold range for TFS 11R heads? Or, what heat range is appropriate for a 200hp dry shot on a progressive controller?
Click to expand...
I run 9s in my motor , 20511r heads

NGK5238

R5671A-9

NGK heat ranges work backward so if you wanted a little warmer plug -8 or -7

Colder would continue to go up in number. These are non resistor though.
 
Reactions: Bullitt347
J

JMG9350

Active Member
May 9, 2022
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Wyoming
May 8, 2026
#28
  • May 8, 2026
  • #28
Is that in your race only car? I don't want the RF interference on a EFI street car.
 

Bullitt347

I have been doing it wrong this whole time
15 Year Member
Mar 23, 2007
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May 8, 2026
#29
  • May 8, 2026
  • #29
I run the NGK 9's as well.
On a cold day at the track I might stick some 8's in it. Cold air, E-85 and an A/W Intercooler kind of dictate it.
 

FastDriver

I was uncomfortably high & wearing a helmet
SN Certified Technician
Sep 5, 2001
6,068
2,671
224
Vass, NC
May 9, 2026
#30
  • May 9, 2026
  • #30
Have you guys confirmed 9s are right by the temp transition point on the ground strap? I think the 8s are a pain to keep from fouling for street use.
 

nicholase

I lubed and pushed, until it was all the way in
May 21, 2024
619
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New York
May 9, 2026
#31
  • May 9, 2026
  • #31
I found this link at Autolite.com
https://www.autolite.com/media/wysiwyg/tech_specs/Autolite_Understanding-Heat-Range_.pdf



 

TOOLOW91

If you're the village idiot what's that make me?
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#32
  • May 9, 2026
  • #32
JMG9350 said:
Is that in your race only car? I don't want the RF interference on a EFI street car.
Click to expand...
My car sees the track 2-3 times a year tops mainly a street car. No issues with Holley efi

Same for about a dozen others I work on
 
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TOOLOW91

If you're the village idiot what's that make me?
20+ Year Stangneter
Nov 29, 1999
8,481
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May 9, 2026
#33
  • May 9, 2026
  • #33
FastDriver said:
Have you guys confirmed 9s are right by the temp transition point on the ground strap? I think the 8s are a pain to keep from fouling for street use.
Click to expand...
No issues with mine - it does see 18-20 psi on the street though. I’ve ran these since I put the 20511r headed version in my car so about 7 years now
 
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