small turbo boost??

[iain]

today i plumbed in a proper boost gauge as since my cars been back on the road its not felt as quick so the story was that it was only boosting 10 psi but showing a bar on bannana pod so i gave the actuator a few turns but doesnt seem to want to boost anymore than 10 psi thought it was strange

[sixaxles]

when i went to grove to get mine "upped" mark shorted out the boost control valve - amal/lectron or something?? its ontop of the intercooler. but thats as much as i can tell you.

[neil a]

Im sure some of the small turbo chips have a boost limit set in them , so even adjusting the actuator wont increase it as the ecu will just dump more pressure throught the lektron(sp) valve.

[sixaxles]

thats why its been shorted out - then a restrictor was put into one of the other pipes. its sort of coming back to me now lol

[iain]

im not running the amal valve i just have the actuator looped the car was like this when i got it...

[sixaxles]

im not running the amal valve i just have the actuator looped the car was like this when i got it...

a shot in the dark but maybe the actuator is weak???

[The Radman]

have you still got the standard dump valve fitted to the turbo? if so check the diaphragm for splits

[sixaxles]

thats a thought - i made a plate with a tyre valve in it to test for leaks, just take the rubber pipe off the air flow meter and put it in there then put on your tyre inflator and bobs your uncle!

[iain]

just checked the standard damp valve and the diaphram is split! can i just block that off? and whats the best way to do it

[stucos]

Remove dv and fit a blanking plug,if your stuck i have a plug here

cheeRS stu

[iain]

sorry missed your call stu was down in dundee picking up a car, its the standard dumpvalve im on about thats built into the turbo on a t28 not an atmospheric one its not as easy as that

[iain]

blocked off dumpvalve all sorted now

[Craig H]

[georgie1]

can you run a s/t with no dump valve

[sixaxles]

can you run a s/t with no dump valve

i do but i'm going to refit the recirc one when i get chance.