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how much could you learn about tuning an engine for tbi by puttin a carb on for a bit

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Old Apr 1, 2002 | 08:49 PM
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how much could you learn about tuning an engine for tbi by puttin a carb on for a bit

Just wondering. My 355 for my 69 will be going in soon and it will be carbed until i take it back apart in a year to have the body off and put quarters in and chop the roof line.

anyway, after that i will be going tbi. Can i throw my tbi harness in and hook up an o2. and watch the engine and sorta get a baseline of what the engine likes for fuel at all rpms and such therefor making it easier to program the prom when i do slap on the tbi? How would i guage fuel usage? pressure? i would like something like gallons per minute from the carb so i can figure out what my injectors and such need to be doing. is this worth the thought, or should i just start from scratch when i put on tbi

what do you guys think?

Last edited by snflupigus; Apr 1, 2002 at 08:51 PM.
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Old Apr 2, 2002 | 02:53 AM
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I think a person could learn a helluva lot from running a carb for a while. I had always been a fueliehead, and didn't know one end of a carb from the other until I worked at a hotrod shop for a couple years. Some of the finer points of FI came into focus after that.

Anyway, why am I telling you this?
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Old Apr 2, 2002 | 07:53 AM
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Re: how much could you learn about tuning an engine for tbi by puttin a carb on for a bit

Originally posted by snflupigus
Just wondering. My 355 for my 69 will be going in soon and it will be carbed until i take it back apart in a year to have the body off and put quarters in and chop the roof line.

anyway, after that i will be going tbi. Can i throw my tbi harness in and hook up an o2. and watch the engine and sorta get a baseline of what the engine likes for fuel at all rpms and such therefor making it easier to program the prom when i do slap on the tbi? How would i guage fuel usage? pressure? i would like something like gallons per minute from the carb so i can figure out what my injectors and such need to be doing. is this worth the thought, or should i just start from scratch when i put on tbi

what do you guys think?
Nope.
Not worth doing it twice, save the effort and build a WB so when you get the TBI you can save a couple months worth.
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Old Apr 2, 2002 | 07:27 PM
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Re: Re: how much could you learn about tuning an engine for tbi by puttin a carb on for a bit

Originally posted by Grumpy


Nope.
Not worth doing it twice, save the effort and build a WB so when you get the TBI you can save a couple months worth.
So you're saying that the WB is good for more than just WOT?
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Old Apr 8, 2002 | 03:02 AM
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absorutery it's good for all rpms for the most part.
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