optimizing fuel and timing for max HP with both 5% and 15% ethanol pump gas. Low buck HP improvement!
Adding HP with ethanol dyno tuning a Cat 800 stocker with E15 fuel
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2018 Arctic Cat ZR8000 new CTEC engine pre and post breakin
compare new ZR8000 to the AmSnow/ DTR Shootout 800+cc pre-breakin engines
Arctic Cat 900+cc engine 800 bigbore, dyno tested five times
All “big bores” are not created equally–port shapes and timing are critical as this five session evaluation indicates