Chassis dyno questions |
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Chassis dyno questions |
Cevan |
Jun 15 2010, 01:33 PM
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#1
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Senior Member Group: Members Posts: 1,079 Joined: 11-December 06 From: Western Massachusetts Member No.: 7,351 |
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? |
PRS914-6 |
Jun 16 2010, 08:35 AM
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#2
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Excellence Magazine Project 914 3.6 Group: Retired Members Posts: 1,278 Joined: 20-May 06 From: Central California Member No.: 6,031 Region Association: None |
Mark and Jake bring good points. I have spent hundreds of hours chip tuning GM stuff and I found that when I get perfect results on the dyno it rarely works that good in daily driving. I now only use a laptop and data logger and tune and burn on the fly.
So, I would offer the same advice..... WB O2 and if there is some way to data log (even manually) I think you will be far better off tuning for real world driving. Sometimes the perfect reading just won't run right and you will notice that very quickly. In other words, sometimes the perfect "reading" is not the sweet spot |
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