1990 Geo Metro; Engine Dyno
Posted: Wed Jan 24, 2007 8:00 pm
I have a 1990 Geo Metro (1 L 3 cyl) engine that is being used to dyno test the Singh head modification. I needed a easy to use fuel computer which I can use to lock fueling settings so that subsequent tests are the same. To that end I have a MS V2.0 installed and running the fuel aspect. At this point just using a normal vac advance dist for spark. Depending upon the success of the tests, I may goto a V3 and start looking at spark timing as well.
To start with I'll be tuning the engine (1990 XFI 1.0L 3 cyl) and get it running well up to redline (about 6k). Dyno utilizes a hydraulic load cell. Will go through the engine to make sure its in tip top shape and then will run a series of baseline tests in stock form. Then I will modify a second head so that after the only addition is the Singh grooves (compression remains the same) and this will be installed and the same test run as engine loads, emissions, EGT, etc are all logged and compared.
Hoping to also put together a ionization current monitor to compare baseline to modified.
Garrett
To start with I'll be tuning the engine (1990 XFI 1.0L 3 cyl) and get it running well up to redline (about 6k). Dyno utilizes a hydraulic load cell. Will go through the engine to make sure its in tip top shape and then will run a series of baseline tests in stock form. Then I will modify a second head so that after the only addition is the Singh grooves (compression remains the same) and this will be installed and the same test run as engine loads, emissions, EGT, etc are all logged and compared.
Hoping to also put together a ionization current monitor to compare baseline to modified.
Garrett