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#1
10-19-2025, 05:08 PM
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O2 sensors and leaded fuel?
Anyone having any luck running an O2 with leaded race fuel? Rumor has it some of the units today can stand up to lead, but I'm not seeing anything like that in a search on the topic. (here and elsewhere). Id love to know if someone is making it happen.
I'm currently using the AutoMeter Wideband and it seems to crap out pretty quickly. . I'd be willing to switch to any other out there (Fast, Innovate) if anyone has any real world experience with one holding together. Also, would it be safe to say its only the 02 that fails, and not the gauge? My readings seem to come and go, so I'm not really sure. I put in a brand new Bosch sensor for the dragstrip, and the readings on from the start, were spotty at best.
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. Mark S . Who needs nice and pretty, when you can have mean and nasty? KRE Aluminum headed 463CID 73 LeMans. Used to run 10.6x @ 124.55. 3700lbs . So much for 2020...shootin for 9s in 2021...and in 2022 apparently.....and 2023....and 2024.....and 2025.....who am I kidding? there will be no 9s with this engine! >>My 73 Build thread |
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#2
10-19-2025, 05:31 PM
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See attached from a similar post of mine a few months back.
https://forums.maxperformanceinc.com...d.php?t=880455
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79 Trans Am WS6 71 Formula 72 Formula 71 Firebird 69 Firebird |
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#3
10-19-2025, 07:22 PM
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NTK 554-100
https://www.holley.com/products/fuel.../parts/554-100 I've got this but can't say how long its lasted on leaded fuel
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69 GTO Convertible, 4000lbs 462ci, 606tq/569hp - 93 oct @ 34 deg (207psi) 11.7:1, KRE H Ports, Lunati HR 282/290 w Johnson Lifters & 1.65 Scorp, E30, EFI, Holley HP + Dual Sync, 12-1 Crank Trig, 120lb Inj & 1000cfm TB, Torker II EFI Int & Rails, PTC 10", Rock Valley SS Tank, Dual 450s, Aerom EFI Reg, Aero Front & Wilwood Rear Disc Brakes, Dougs 1 7/8" & Borla Pro XS 3", Alum Rad & Dual Fans, 12:1 Box, UMI Arms & Viking Berz Fr + Rear CO Shocks, Hella UP5.0 Vac Pump, 12 Bolt, 3.73, 33 Spline |
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