https://youtu.be/ulse5duDJ0c
So in a nutshell:
123.1Hp at 6400rpm and 115 ft-lb Tq at 5400 rpm at the wheels.
Over 100Hp from 4700 rpm to redline.
This is the initial tune and jetting. Haven't played with cam or ignition timing yet, nor chokes or jetting. This is literally the engine out of the box.
This is running 38mm chokes, 4.5 auxiliary venturis, 60F9 idle jets, 145 main jets and 170 air correction jets (and F16 emulsion tubes). Pump jets are 50 with no bleed/bypass.
Some basic details on the engine:
-Honda A20 bored to 1979cc,
-10.6:1 compression ratio,
-Dual 45DCOE Weber Carburetors running 38mm chokes,
-Delta "282" camshaft (230.8 deg measured intake duration at 50 thou lift; .2743"/.2747" in/ex max lift; currently set to straight up, introducing a calculated 1.2 degree retard due to head milling),
-Hurricane Extractors to 2.25" Mandrel bent "straight-through" exhaust system
-Head and both Manifolds "ported and polished"
-Valves relieved
-Lightened flywheel
-Clutchnet Stage 2 pressure-plate
-Balanced crankshaft, flywheel, pressure-plate
-Statically balanced con-rods, pistons
Engine was running on 95 RON fuel, and you can see the worst case mechanical noise was only around 20%. Dyno was at sea level, intake temps around 35C as per the data table.
(If you can't see a large enough image, right-click and select 'view image' to see it in my photobucket where you should be able to see full-res)
Plans for the engine are to spend a few more hours on the dyno, testing 40mm and 37mm chokes, trying more advance on the cam timing 0degrees and perhaps +2, and fine tuning the jetting for a slightly leaner burn through the peak torque region. A custom air box with cold air intake will be getting done at this stage too. Long term future plans are integra gear box, LSD and aluminium flywheel. Have the teg box now with bearing and synchro kit, but need a donor bell housing to start the tranny build (long story but my current tranny is an ET-1/A20 hybrid).
It's been a long road, but finally getting to the icing on the cake.
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