20B N/A dyno
#1
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20B N/A dyno
A friend of mine Magnus is now on a Dynapack hub dyno. The engine has a very large streetport with 3 Weber 48IDAs!, very cool set up with short carbon fibre intakes. They have problems with the midrange being to lean 14-14-5 afr and on top 11 to 11-5 afr. E-tube is F11 with 210 main and 190 air jets. They will try F7 to get a more even fuel curve. Ignition L20 T10 on MSD 6s. Power is now 306 hp@9200 rpm! At wheels Approx 348 hp at cranc. I will come back with an update when the dyno session is over.
/Lasse
/Lasse
#2
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313 hp@9200 rpm final result. That's 355 cranc hp F7 tube with 190 main 180 air gave afr 13.0,unknown chokes. Timing was best at L 20 deg lost hp with L 22 deg split 5 deg gave a little bit more hp compared to 10 split. Lotus super seven wheigs only 1565 lb A real rocket on the road
/Lasse
/Lasse
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313 hp@9200 rpm final result. That's 355 cranc hp F7 tube with 190 main 180 air gave afr 13.0,unknown chokes. Timing was best at L 20 deg lost hp with L 22 deg split 5 deg gave a little bit more hp compared to 10 split. Lotus super seven wheigs only 1565 lb A real rocket on the road
/Lasse
/Lasse
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#9
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F11 and f7/8 emulsion tubes suck! Try using f2 and f3 emulsion tubes with larger chokes- 45-46mm. Your going to need larger main jets and smaller air jets. Somewhere around 245-260 main and 100 to 130 air. Try that and let me know what kind of power you make. I'm pretty sure you will be surprised
#11
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F11 and f7/8 emulsion tubes suck! Try using f2 and f3 emulsion tubes with larger chokes- 45-46mm. Your going to need larger main jets and smaller air jets. Somewhere around 245-260 main and 100 to 130 air. Try that and let me know what kind of power you make. I'm pretty sure you will be surprised
/Lasse
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