wastegate is at max after adjusting the acuator but im only getting 6psi on full boost, thats going up a hill in 4th, normally it runs around 5 1/2 psi

any ideas?

 

i'm sure some one will correct me if i'm wrong but i would say your -31 accuator could have a weakened spring in it as ihave a erst that is pretty standard it still has standard accuator and it is running 9psi(not chiped either.)

 

its a new colins actuator

 

is the ecu chipped? do you run a bleed valve or the amal valve? and what psi was it running with the standard actuator?

 

no chip, no bleed valve, standerd engine not sure what is was running but it wasnt anywere near as qiuck as it is now, im guessing it was running about 1psi if that,
ive wound in the rod as far as it will go and im only getting 6psi

 

wind it back in then and it will increase the boost
then take it to get set up with the extra boost youve added or it will end in tears

 

it is wound to maximum boost i can lower it if i want but i dont i want to raise it

 

surely your winding it the wrong way

 

which way are u winding it? in or out

 

NO, look when i wind the rod inwards this raises the boost, ive tried this from about half way going up in half turns untill i get to 6psi and cant turn it any further

first i thought it mite be on the limiter but it isnt, as i can bring it down to 5psi - 4psi etc, i just cant raise the boost over 6psi

 

im shortining the rod to raise the boost

 

could it be a problem with the wastegate?

 

is it a standard acc or a dash 31

 

colins -31 actuator from ebay

 

sounds like it could be

 

i get a weird sound in high revs too, sounds like a heat shield is loose and rattling but it isnt

 

sounds like its pinking take it to a tuner get it set up

 

ive heard pinking before and this is different, i checked the emissions at work before christmas and the co content was about 1.3ppm which is slightly weak. i would go to a tuner but im sqint after buying a new gearbox (expensive lesson about powersliding)

im going to remove the turbo and investigate, is there anything i should look out for apart from the obvious

thanks guys for your help - much appreciated

 

the sound is like the one you get from a butterfly on a carb that has a fuked spring and just moves loosely, its more like a rattle

 

I was have same problem. Boost wont go under 0.4 , but then I see that amal valve is wrong connected, and my boost gauge didnt work :-(


""""...co content was about 1.3ppm which is slightly weak.."

You mean that mixure is lean? I have about 1.30 %

 

are u usin g a amal valve on it mate??
how is it connected up the turbo?

 

did u unhok the eylet off the wastegate arm before u shortened the actuator rod?
if not the u will have torn the diaphram in the actuator hence no boost.
the rattling if its not pinking coule be the wastegate penny that isloose inside the turbo which will also cause the problem

 

lol yes i unhooked it first is it an easy job to tighten the wastegate penny?

 

the engine has never been played with so i guess its correct