Honda broke the ice when the NSX debuted in 1991 as the first production car with a variable valve timing system. Honda's VTEC (which sort of stands for Variable valve Timing and lift Electronic Control) system, which has basically remained unchanged since then, is still one of the most effective systems for making ultra high specific output.
Eu stiam de CRX 1.6 160cp din '88 a fost primul cu VTEC.
i-VTEC
As successful as the VTEC system has been, one of the key arguments against it in comparison to competing systems is that it had only two profiles for timing and lift. i-VTEC answers the critics by introducing continuously variable timing. The valve lift is still a 2-stage setup as before, but the camshaft is now rotated via hydraulic control to advance or retard valve timing. The effect is further optimization of torque output, especially at low RPMs.
yep, you got the real deal man. si are iVTEC si pe admisie si pe evacuare. am inteles ca iVTEC-ul de 160CP are chestia numai pe arborele cu came de admisie.
acu' cred ca stiti ca Toyota au inceput cu VVT si cu VVTi au realizat ca le trebuie si VTEC si si-au pus ceva asemanator. Honda ainceput cu VTEC si au pus si VVT. asa ca la momentul asta motoarele de varf ale celor 2 companii sunt similare tehnic.
Honda insa face inca motoare mai bune si e, cu 14mil. de motoare produse anual, cel mai mare producator de motoare din lume.
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ex Civic mk.7 EX sedan 2002, 1.7VTEC
Acura TL 2006, 3.2 V6 SOHC VTEC
Civic Si sedan 2007, 2.0 DOHC iVTEC