Options For Getting Vct Working.

[Lithium]

Ideally you need to set it on a dyno. Do a run with vct on and one with vct off.

1. This will show you the significant mid range gains and

2 The points where the lines cross will be the on and off settings.

IDEALLY you have an ECU like a G4 Link, and can get real fussy/fancy with it. Roughly how I've gone about it:

A) Set NVCS off

B) Tune ignition/fuel maps as you normally would

C) Create 4D ignition/fuel maps (I use rpm vs MAP like the base maps) to engage on condition of NVCS on, set NVCS to on

D) Map 4D ignition/fuel maps as you normally would

E) When satisfied you have got the NVCS off and NVCS on maps optimal (in my experience NVCS likes more fuel and more timing than when off, at least for parts of the rev range) - set the switch points to suit the best of both worlds

F) Have a faster car with the same peak power...