Rullate

[Phreno]

nippe quando vedrai l'officina capirai tutto.....
la mia ha i colletori di aspirazione variabili

allora la tua auto ha qualcosa che non dovrebbe avere, se parliamo di NBFL SPORT

http://www.liptonius.com/miata/mission/e...Engine.htm

The 2001 'BP-Z3' engine also had a new intake manifold without VICS but with a similar torque enhancing set of partial butterflys that increases velocity. One of the unique improvements for 2001 was the addition of a Main Bearing Support Plate (MBSP). Even though the 'B' engine uses 5 mail bearings the crankshaft can still flex quite a bit at higher revs and output levels. Mazda added a MBSP by tying the main caps together bolting it to a thicker stamping if the windage tray.

i tuoi collettori dovrebbero essere cosi'



Invece tu dici di montare questo??