Only engine mods my car has is full exhaust, pod, and intercooler.
Ok just had full intercooler piping fitted with hybrid cooler. Also had split dump pipe fitted at the same time.
I don't have any aftermarket boost control, still running the stock setup. It holds 0.5bar below 4500rpm like it always did. But now instead of jumping to 0.6 bar once the revs are over 4500rpm like it used to, it's just rising up to 1 bar and possibly beyond, but i back off throttle once it reaches 1 bar because i don't want to damage the engine or turbo.
This is what i suspect is causing it...
The line from the wastegate actuator is now running right accross the engine bay and tapped into a line coming from the stock plenum. I am going to get a nipple welded into the intercooler piping to tap this line into tomorrow hopefully, instead of up at plenum.
Should i tap it into the intercooler pipe from turbo? or into the pipe from cooler to plenum? Do you think this could be the cause of the over boosting?
At first i thought it could be the wastegate flap being restricted or hitting the dump flange, but after sussing out the new vacuum line config, i'm thinking it's that.
here are some photos of previous setup
and photos after cooler install and lines changed
[pics]
cheers,
chris.