20B N/A dyno
07-03-13, 09:36 AM
#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
Approx 348 hp at cranc. I will come back with an update when the dyno session is over./Lasse
07-03-13, 02:41 PM
#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
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
07-05-13, 12:04 PM
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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
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
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07-05-13, 12:04 PM
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07-05-13, 08:05 PM
#9
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
07-07-13, 02:39 PM
#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
Maybe he should try the 100 mm instead?/Lasse
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