RESI BOX RS251 SILENT BY POSCH PERFORMANCE ( 30 - 60 HP )
The timing of the RS 251 BOX is perfect at 180 - 185. The advance can vary from 24-28 degrees. However, the box can also be run with 190 & advance 30 without any problems. The box also copes with this. The exhaust definitely works best on diaphragm engines with 28-30 mm carburettors.
For rotary valve engines, the PEAK speed of the box is normally a little too high. It also works, but then the Polini box, for example, fits better.
The Resi box has a very nice broadband power delivery and therefore has a lot of band with decent revs.
In addition, it is currently the only BOX on the market that is equipped with an integrated absorber damper and a 1.5 mm diffuser steel plate. As a result, the further development of the RESI BOX has become significantly quieter.
In other words, the egg-laying pillow in the egg ....
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