Chassis dyno questions Options

[Cevan]

I want to mazimize the tuning of my carb'd 2056. Short of seat-of-the pants tuning, I figure using a chassis dyno is the way to go. I haven't checked to see where the nearest one is or how much it will be, but after spending all this time and money building it, I'd hate to leave any power on the table. I'm just not sure how you go about using it to tune the engine.

I assume I should have the engine pretty well broken in and running well with the carbs jetted as good as my seat-of-the-pants dyno can tell.

Do I go there with a variety of idle and main jets, air correctors, venturis, etc and start swapping things out one at a time based on a baseline run?

[McMark]

No problem... (IMG:style_emoticons/default/cool.gif)
Wide Open Throttle.

To restate my comments above, a dyno is perfect if you're looking for the perfect tuning for a drag strip car, or an AX/DE/etc car, because those cars spend a significant amount of time at WOT. A street driven car spends almost no time at WOT.

Remember that everything is has some compromise. So a perfectly tuned WOT car very likely isn't tuned that well for 25% throttle.

[johannes]

A street driven car spends almost no time at WOT.

I used to own a Citroën 2 CV and I drove it almost always at WOT. With only 13 HP available, the throttle pedal is used as an ON/OFF switch (IMG:style_emoticons/default/lol-2.gif)