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02loftsmoor |
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Senior Member ![]() ![]() ![]() Group: Members Posts: 577 Joined: 26-June 11 From: Ft. Worth TX Member No.: 13,243 Region Association: Southwest Region ![]() ![]() |
I'm check on going with distributor-less ignition system, some pointers please
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jarred |
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#2
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Newbie ![]() Group: Members Posts: 20 Joined: 13-March 09 From: seattle Member No.: 10,159 Region Association: Pacific Northwest ![]() |
Mark: Theory is that accurately timed/mapped spark is the only way to make power in an engine. Of course in practice, to do it correctly entails dyno time. When you change internals, the ignition map needs to change to take full advantage of it. Changes in compression, combustion chamber, valve size, cam profile, bore, plug location etc. all effect the flame front and timing for optimal ignition. You can twist an 009 to not ping at full advance, probably make good power at WOT and full advance, but everything in between that and idle is likely sub-optimal. Fueling is pretty lenient across AFR in terms of power output. I suspect that Jake has spent considerable time looking at ignition hook curves and the output of knock sensors while deriving ignition maps for his engines. But of course, some of us like to tinker with these things ourselves!
WLD: Very cool. I have a pair of old T4 heads I considered using to jig up in the machining center. Pretty low priority project though, and seems like nerve wracking work if done to good heads. |
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Lo-Fi Version | Time is now: 28th June 2024 - 02:32 PM |
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