Just thought I'd post back with how I got on with mine 
Went to CC Tuning in Burton on Trent for a custom map. Rolling roaded the car on the standard map and my current mods made a nice difference, it ran 221BHP and 216LBFT. Mods in short are 2.75" downpipe/precat decat, 2.5" system from the downpipe back, also decatted. Crossover delete so direct feed to turbo air intake, 200x80x80mm Pipercross air filter. Of course not long serviced, VXR spark plugs etc. So off to a good start.
Then the map went off to be written. Some rolling road runs and checks later we were seeing good figures but the standard side mount intercooler doesn't cope brilliantly. Intake temps were rising along with the power curve! So maybe look into a front mount intercooler as summer approaches. Anyway, we ended up on 260BHP and 270LBFT. Fairly good gains! And all at no more than 15PSI. But we ran it again and the boost dropped off mid run to about 8PSI. All boost hoses, vac pipes checked by eye, no issues. Smoke test was then done, no leaks. Map was re-checked, all fine. So off we went to test on the road and log any issues, but again none showed up on diagnostics and no fault codes have come up. So we think the boost control solenoid is iffy. Occasionally in higher gears the boost will tail off then pick back up. Only £28 for a new one so will fit this weekend coming.
Graph, you can see a boost drop (black line) on here too. Not too much of a boost spike as it spools so my clutch lasts:
Vid on one of the rolling road runs:
Went to CC Tuning in Burton on Trent for a custom map. Rolling roaded the car on the standard map and my current mods made a nice difference, it ran 221BHP and 216LBFT. Mods in short are 2.75" downpipe/precat decat, 2.5" system from the downpipe back, also decatted. Crossover delete so direct feed to turbo air intake, 200x80x80mm Pipercross air filter. Of course not long serviced, VXR spark plugs etc. So off to a good start.
Then the map went off to be written. Some rolling road runs and checks later we were seeing good figures but the standard side mount intercooler doesn't cope brilliantly. Intake temps were rising along with the power curve! So maybe look into a front mount intercooler as summer approaches. Anyway, we ended up on 260BHP and 270LBFT. Fairly good gains! And all at no more than 15PSI. But we ran it again and the boost dropped off mid run to about 8PSI. All boost hoses, vac pipes checked by eye, no issues. Smoke test was then done, no leaks. Map was re-checked, all fine. So off we went to test on the road and log any issues, but again none showed up on diagnostics and no fault codes have come up. So we think the boost control solenoid is iffy. Occasionally in higher gears the boost will tail off then pick back up. Only £28 for a new one so will fit this weekend coming.
Graph, you can see a boost drop (black line) on here too. Not too much of a boost spike as it spools so my clutch lasts:
Vid on one of the rolling road runs:
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