text: The VQ is a family of V6 automobile petrol engines developed by Nissan and produced in displacements varying from 2.0 L to 4.0 L. Designed to replace the VG series, the all-aluminium 4-valve per cylinder DOHC design debuted with Nissan's EGI/ECCS sequential multi-point fuel injection (MPFI) system. Changes from the VG engine include switching to a timing chain from a timing belt, and relocating the water pump from the outside of the engine to inside the timing cover where the pump is driven by the timing chain. Later versions featured various improvements, such as variable valve timing, and NEO-Di designated VQ engines replace MPFI with direct fuel injection.
  The VQ series engine was honored in a record 14-straight selections by Ward's 10 Best Engines from the list's inception until 2008.
  Versions
  1st gen (1994-)
  VQ20DE
  VQ25DE 1st
  DE series
  VQ20DE
  The VQ20DE is an aluminium block, aluminium head, DOHC 24-valve  V6, with a  bore and stroke and compression ratio ranging from 9.5 to 10.0:1. In base form it produces  to  at 6400 rpm and  at 4400 rpm (lean burn).
  It is fitted to the following vehicles:
  1994–2003 Nissan Cefiro A32 and A33
  1995–1999 Nissan QX A32
  1998–2005 Renault Samsung SM5 KPQ/A32