Well, i've upgraded my stock turbos to R34 N1, gone in for tune last Friday only to find the car won't boost past ~10psi
the setup is also very laggy - makes 2psi almost immediately then very slowly creeps up to a little over 10psi as it proceeds through the rev range.
Running a profec B which was set to 14psi on the stockers before swapping them out, this was set to max with no change, then later disconnected on the dyno to see if problem - the boost stayed the same.
Was suggested that i check 3 things;
- cat
- pre-load on gates
- cooler pipes
Dropped the exhaust tonight, cat looks fine, both actuators are adjusted as they should be (1/2 hole to full hole tension) only thing i have found is a TINY spot where air may have been leaking from a cooler pipe - though this pipe has not been touched since the stock setup, so would suggest it has always been there. Also a few runs were done on the dyno and surely with the ebc disconnected the boost leaking out would of been easily heard from this?
I will also add that since the tune, aside from the obvious loss of power it runs just as nicely as it did before.
Any other suggestions as to what could be causing my boost problems?