Dyno tune a non-EFI?

I have a car that is carbed(Q-jet) and has no electronic sensors. What would be able to be gained by dyno tuning? Can you sniff test exhaust for correct mixture or detect preignition without a knock sensor? I want to have a more accurate way to tune the carb and timing than by reading plugs and listening for ping. Would it be easier if I installed an O2 sensor and knock sensor? Mike

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Originally Posted by indyzmike

I have a car that is carbed(Q-jet) and has no electronic sensors. What would be able to be gained by dyno tuning? Can you sniff test exhaust for correct mixture or detect preignition without a knock sensor? I want to have a more accurate way to tune the carb and timing than by reading plugs and listening for ping. Would it be easier if I installed an O2 sensor and knock sensor? Mike

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You should Call Brad and talk with him direct about it (262 692-9035), hes the Carb guru.

But yeah a wide band o2 sensor can be installed in the exhaust to tell where the AFR is at during operation vs reading plugs. The knock sensor would be a cool idea too.

Thanks!

Get some jets a couple sets of plugs. A timing light to get that little extra and your set. Plugs tell you alot about what each cyc is doing by itself. Carb cars will almost always have a flat spot in the power curve. A wide band won't hurt but to me and how I was taught it's what the plugs look like. Just my opinion.