Thread: Miata report
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Old 10-11-2008, 01:30 PM   #5 (permalink)
EcoModding Lurker
Join Date: Sep 2008
Location: Spain
Posts: 55

'El Misil' - '91 Opel Calibra 2.0i
Last 3: 29.02 mpg (US)
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My Megasquirted NA 1.6 makes 4.8~5.2 l./100 (45~49 USMPG) when driving like the granny at 90kph (55 mph) in fifth, this with a 14.5:1 AFR at those conditions.

At higher speeds however the bad aerodynamics take their toll, 150kph (91 mph) mean ~10 l./100 (23.5 USMPG).

I made some small experimenting on cruise leaning and this engine runs fine leaned to 18:1 in cruise, although of course throttle response sux bigtime then.

Also this engine loves advancing the ignition below 5500 rpm & 75 kPa.

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