NE makes 235 & more ?

According to Tacho, my little black Calibra does at least 235 km/h (this can be done reasonably quickly) I didn’t do much on the series engine except for a Raid sport air filter (still without power pipe) with direct fresh air supply, 5 W 30 oil, Bosch spark plugs with four times ignition nipple (or so similar), serial tires on 17 inches. I have already read the other 2.0 8V Callis (according to Tacho) over 230 run by others it was always on the not correctly functioning Tacho sc Just make me think that so many other small callis have all the nen kaputen tacho, so please write your experiences with year of construction if your little callis is so fast (maybe there is a connection, year of construction conditional). ——————————————————————————– Black Calibra 116 HP (before that Kadett E Carbrio 1.6 i, Kadett Caravan 1.6 i, Corsa A 1.2 S 4 Doors, Corsa A 1.2 S 2 Doors, Manta A 1.9 S, Ascona A 1.2 S, Volvo V 70 R (305 PS), Omeg a Evolution 500, Monza GSE, Manta A GT/E, Manta A 1.2 S, Mini Cooper 1000)