NA 1600 90 CV --> "Riportiamola" a 115 cv !!!

[Mr.Wolf]

http://www.solomiata.com/CheapHP.html

Shaving the head. Compression = power. Shaving the head .010" will increase the compression ratio about a 1/4 point. I dyno'd this and it was good for about 4 HP and 4 ft lbs of low rpm torque. It is very noticeable across the entire rpm range. (I don't know what the shaving limit is but I have not heard of anyone going beyond .025". FYI, the shop manual limit is .008" for 1.6 and .004" for the 1.8). As long as you have the head off you might as well freshen up the valves and seats, too

Quindi se l'effetto di limare la testata può essere ottenuto tramite una gurnizione più sottile, con la guarnizione di 1 mm avrei un aumento del rapporto di compressione di oltre 0,25 andando quindi un po' oltre i 9,25:1..con la guarnizione di 0.8 mm arriverei a circa 9,5:1..