Quote:
Originally Posted by Mighty190
We ran it at a track day this weekend. It ran well with the ezl that uses a knock sensor but had a huge jump in power at round 4k with the one that seems like it belongs in the car. So that was interesting.
In regards to electronic fuel and ignition control that would be nice. I don't have time or money for that project. If we focused on making everything perfect the car would never run .
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I don't know how your engine varies from the OE configuration, but you can get a more aggressive spark advance map by removing the R16/1 resistor that is in a pigtail tied to the plastic panel inboard of the battery.
About ten years ago I took the spark advance map (less vacuum advance) for the OE 750 ohm resistor, no resistor, and the connector shorted. The most aggressive map is with no resistor, but I think this config. and the OE resistor both yield 32 degrees max advance at 3200 revs, but with no resistor there's much more advance down low, which provides noticeably more torque/power down low and allows me to use 5th gear down to as little as 30 MPH (about 1200 revs) vs. 45 MPH with the OE resistor.
Either way the engine has a strong pull from 5000 to the rev limiter, but with no resistor the power curve is more linear from off-idle to the rev limiter.
I short the resistor for emission testing, which significantly slows the rate of advance with increasing revs because it lowers emissions (HC is on the ragged edge with the OE resistor), but there is little power below 2000 and virtually no power below 1500.
You can search for threads started by me to see the data.
Duke