Hi guys - I have the following hardware mods, Zafira airbox, full 63mm exhaust and downpipe and front mounted intercooler still with stock software.
I only recently fitted a boost gauge after all the hardware mods and not only did my car with all the above mentioned hardware mods make way lower power figures than a stock Coupe on the dyno but it's also only boosting to 0.4bar and it just holds there, it doesn't overboost and it doesn't drop...
Now this is very low boost indeed, and the car does feel very lazy. The tuners here say that a Coupe with stock software is suppose overboost to about 0.8bar and settle around 0.5/0.6bar. Which sounds about right to me.
So what can the problem be and why is the car boosting so low and not overboosting like it should?