'74 with No Cats
Thread Starter
Pro
Joined: Jun 2014
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From: Ventura County CA
'74 with No Cats
I have a new to me '74 vert. It does not have any cats in the exhaust.
What changes should be made to bypass the O2 sensors in the system?
Any other changes or settings I should check to make the car run right?
What changes should be made to bypass the O2 sensors in the system?
Any other changes or settings I should check to make the car run right?
Thread Starter
Pro
Joined: Jun 2014
Posts: 705
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From: Ventura County CA
There are also some gundgy wires taped together in the area O2 sensors might have been located. Puzzling out all the changes and 'upgrades" made by PO's on a 41 year old vette are certainly challenging.
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Pro
Joined: Jun 2014
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From: Ventura County CA
Thanks Mike, That is what I am doing. That is why I come and ask questions. I am new to corvettes and new to GM vehicles. I did build custom 4X4's at my own shop but that was in the early '70's. Later I build and restored '53-'56 Ford trucks. Bear with me as I am a quick learner.
Team Owner
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From: Southbound
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...There are also some gundgy wires taped together in the area O2 sensors might have been located...
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From: Chino CA
Thanks Mike, That is what I am doing. That is why I come and ask questions. I am new to corvettes and new to GM vehicles. I did build custom 4X4's at my own shop but that was in the early '70's. Later I build and restored '53-'56 Ford trucks. Bear with me as I am a quick learner.
You're confusing us.
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Thread Starter
Pro
Joined: Jun 2014
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From: Ventura County CA
and Mike, the pictures of C3 exhaust with O2 bungs was online as some parts houses, probably was a stock picture they used for all the C3 exhaust listings.
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From: Shamong, NJ
A small portion of 80 Corvettes made for sale in California, were the first Corvettes that used an oxygen sensor. From 81 on, all Corvettes had O2 sensors.
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I'm confused, worked on old cars doesn't understand old cars. i heard the term " Ford" mentioned, that may explain it.
Good luck on your project.
Good luck on your project.
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Melting Slicks
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My wife bought a 1985 Mustang GT w 5 liter. HO brand new back then. That weekend , I sawed out the cat converter , took it down the road to the local bubba exhaust shop. Oh look Billy JOE ..... My converter fell off ......what to do? How about I fix ya up with a dual exhaust ......
. Really? lol. ....
Stopped by the local speed shop they Doctored on that little Holly carb a tad . The good ol boys mumbled a few words , couldn't understand a word , they knew exactly what they were doing. As they raced at the local track every weekend.
Ran like a stripped ape......( Carter you know how fast that is !)
. Really? lol. ....Stopped by the local speed shop they Doctored on that little Holly carb a tad . The good ol boys mumbled a few words , couldn't understand a word , they knew exactly what they were doing. As they raced at the local track every weekend.
Ran like a stripped ape......( Carter you know how fast that is !
)