I think this fella does a nice job with his carb tuning videos. Check out his other vids as well.
Carb tuning
- Thread starter toolmanmike
- Start date
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I've watched his stuff before and he's dead right. And you cannot tell a lot of people that. They think once the air screws are adjusted, they're done. lol
I must admit, I haven't done much carb tuning. The carbs that were in the cars I bought were originals and ran decent. If I replaced a carb I was lucky enough to get ones that worked well with just minor adjustments. I'm sure I could have made them better with more accurate tuning. I'm paying more attention to that now.
I'll just say that in my opinion, changing jets, power valves, and idle mixture is tuning - even if it's tuning to a starting point. He says it's not. Splitting hairs, I know. And if that's not tuning, then he doesn't get into what IS tuning.
I kinda agree. Once you start changing PARTS, you really certainly ARE tuning. And I'll also say this. With stock and milder builds, the chance of one being right out of the box is greater. When you start having big intake manifolds, free flowing headers and exhaust, more compression and more cam, that's when you actually need to start tuning. Since I tune old school by reading plugs and feeling driveability, I can have a month or two into getting one tuned correctly. ......which is how I actually prefer it. I've thought about an air fuel gauge, but as long as I can tune "my way" and get it right, I'll continue to.
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Cuda416
Well-Known Member
I would add that a carb has several systems that each get tuned. It's a system of systems, each tunable independently, that effect each other as a whole.
YES SIR! And it matters WHICH system you start with! There is an order. Or you can end up chasing your tail.
I agree with this. Plugs are more accurate than a A/F gauge in an exhaust pipe because you are reading each cylinder separately instead of a bank of four. Also, like you say, smell, ears, and feel are great assets to tuning. I also agree that the closer to stock an engine is, the closer a typical "600" will work OOTB.
Cuda416
Well-Known Member
I would love to learn to accurately read plugs for tuning etc but no place to do short 1/4 stints and shut down to read them.
He preaches fuel pressure gauge and regulator regardless of what carb and system you run. Good information there. My buddy got skunked with that on his Super Bee. He switched carbs and messed with each trying to lean it out. (it was pig rich) Come to find out the stock mechanical pump was putting out too much pressure.
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