Quote:
Originally Posted by Joris
looks complicated, those manifolds are not cheap to produce either. Why would you need so many holes in your exhaust, EGT sensor and a Lambdasensor before and after the cat, unless they are going to run some fancy, complicated new injection system, but why would they then use a single overhead cam.
I do think they are using a 'Heron' type cylinderhead, by the looks of the pistons. So probably quite high compression.
By the looks of it, the are also planning on direct fuel injection.
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For dyno testing you want full instrumentation. Often exhaust gets
EGT at port for each cylinder
EGT further downstream at each cylinder and/or collector
Wideband O2 for each cylinder
Raw emissions collection for each cylinder
That's at least 4 bungs in each primary pipe. Then you add in pressure and temperature in intake tract runners, cylinder pressure, spark plug temperature, oil temp, oil pressure, crankcase blowby measurements, etc etc etc. Signal and waveform readouts from ignition coils, TPS, O2 switching, crank/cam positioning, and much more. A test engine gets really busy, really quickly.