Forse puo' esserti utile fare una ricerca su miataturbo.
ai tempi valutai lo swap con il vvt della NBFL per evitare il caso "sbronzinamento" ma ho abbandonato l'idea.
http://www.miataturbo.net/showthread.php?t=27030
Non ricordo dove ma ho letto che il 146 della nbfl e' decisamente strozzato, per via delle norme antinquinamento.
Toh ho trovato la fonte.
"For 2001 Mazda introduced another variant of the 1.8 ‘B’ with 'VVT' variable valve timing and higher compression 10:1 pistons. It was advertised as having 155 hp but in reality only had 142 hp because of US emissions tuning. VVT is a hydralically adjusted intake cam for advance, retard and overlap and uses the oil pressure and a ECU controlled valve for adjustment."
http://www.liptonius.com/miata/mission/e...Engine.htm
ai tempi valutai lo swap con il vvt della NBFL per evitare il caso "sbronzinamento" ma ho abbandonato l'idea.
http://www.miataturbo.net/showthread.php?t=27030
Non ricordo dove ma ho letto che il 146 della nbfl e' decisamente strozzato, per via delle norme antinquinamento.
Toh ho trovato la fonte.
"For 2001 Mazda introduced another variant of the 1.8 ‘B’ with 'VVT' variable valve timing and higher compression 10:1 pistons. It was advertised as having 155 hp but in reality only had 142 hp because of US emissions tuning. VVT is a hydralically adjusted intake cam for advance, retard and overlap and uses the oil pressure and a ECU controlled valve for adjustment."
http://www.liptonius.com/miata/mission/e...Engine.htm