Just wondering what bhp I should be getting out of a s2 it's still on mfi bit got oversized pistons, piper cam and pulley, pace intercooler, air filter, chipped ecu, set at about 12-15 psi

 

170-180ish

 

Seems like about 140 is doesn't pull like it used to had it setup 2 months ago and now just feels under powered I might change the actuator to a -31 cause it doesn't hold boost as strong

 

If you got it set up to around 17/18psi it should pull 190bhp ish which I find drives lovely

But all depends on your metering unit as they are all different and which valve springs are fitted, as piper ones are useless

 

On a cvh actuators are like service parts lol, every car I've took to be set up has needed one, so I always fit a new one before a tune up

 

Thanks for the advice will get a new one and couldn't tell you what springs brought the engine complete and dropped It in metering head is in good nick according to the tuner what springs would you recommend and where to get them from

 

Agreed had to fit a 34 as my 31 wasnt upto the job when i was recently on the rollers, and the 31 was fitted at the setup beforehand a year earlier lol.

 

It's the turbo thats your limiting factor (assuming it's stock), so 190bhp max, but at 12-15psi your looking at 150-170.

 

Cheers guys will get a new actuator and get it setup again hopefully it will be closer to 170-180 bhp

 

genuine ford springs or decent doubles from newman ect

there seems to be no other alternative thats actually works

at your power level even the poor ones should be ok and is worth a go

if its being set up, rather than saying to the tuner "i want 12-15psi" say to him set it up to the best it can be with its condition and spec