I was looking at Chiptorque performance figures for their chips and wondering how much the chips really contribute?
Stage 1 on a 3.9 mpi increases rear wheel kw by 4kw with standard exhaust manifold and 2 1/2 in sports exhaust.
Stage 2 is 13 kw with extractors added.
Stage 3 is 21 kw with mild cam fitted.
Stage 4 is 27 kw with bigger cam and shims in lifters.
It seems to me from experience with other cars that a fair part of these gains could be got without computer mods, although computer mods have to help to get the maximum benefit.
Anybody know what proportion of the improvements comes from the computer mods, because I'm trying to work out whether it's a value for money proposition to do any computer mods.
Stage 1 on a 3.9 mpi increases rear wheel kw by 4kw with standard exhaust manifold and 2 1/2 in sports exhaust.
Stage 2 is 13 kw with extractors added.
Stage 3 is 21 kw with mild cam fitted.
Stage 4 is 27 kw with bigger cam and shims in lifters.
It seems to me from experience with other cars that a fair part of these gains could be got without computer mods, although computer mods have to help to get the maximum benefit.
Anybody know what proportion of the improvements comes from the computer mods, because I'm trying to work out whether it's a value for money proposition to do any computer mods.