jakeep82 Posted June 23, 2012 Share Posted June 23, 2012 So replaced me external wastegate spring before i was hitting .68 on my boost controller but was just running it on wastegate spring pressure as my car has been off the road for 6 weeks i decided to go for a 1.2 bar spring ! was back on road yesterday took it out and im now hitting .72 so my boost has gone up but not by enough ! i was speaking to my 2 mates who are mechanics and jap car enthusiasts too and they said it might be down to exhaust leak? i have a few very small exhaust leask what need welding up ! could this be the cause of me loosing boost? Quote Link to post Share on other sites
Flaminsam Posted June 23, 2012 Share Posted June 23, 2012 Nope not at all. How is your boost controller set up? The port on the top of the wastegate pre loads the spring to give you higher boost. So if your boost controller is set for a standard actuator it won't work. Read the manual on how the solenoid pipes should be set. Quote Link to post Share on other sites
jakeep82 Posted June 23, 2012 Author Share Posted June 23, 2012 my boost controller isnt running nothing at the minute its just there really , i need a new solenoid so just running on wastegate spring pressure , havent got the manual as i got the boost controller with the car , at the minute i have one vac pipe from turbo one to the wastegate and other up top the boost controller i think ! Quote Link to post Share on other sites
jakeep82 Posted June 23, 2012 Author Share Posted June 23, 2012 its all still plumbed in and reads the pressure of what im boosting but i cant controll boost through it if you get what i mean ? Quote Link to post Share on other sites
funny onion Posted June 23, 2012 Share Posted June 23, 2012 Have you had the wastegate on you're turbo welded? As in the penny washer? Quote Link to post Share on other sites
jakeep82 Posted June 23, 2012 Author Share Posted June 23, 2012 nope thats my next job mate but it is being held closed with a cable tie around the old actuator bracket at the minute! Quote Link to post Share on other sites
jakeep82 Posted June 23, 2012 Author Share Posted June 23, 2012 any body else help what it could be ? Quote Link to post Share on other sites
jakeep82 Posted June 25, 2012 Author Share Posted June 25, 2012 Contacted my local performance car specialists (richard brothers) and they said it could be 1 of 3 things either external wastegate is sticking and causing me to under boost , dumpvalve is sticking and doing the same or the turbo is knackerd ! blocked of the dumpvalve and still underboosting ! going to check over all my vac pipes for holes and then if no avail then its going to have to EWG next !! Quote Link to post Share on other sites
jakeep82 Posted June 25, 2012 Author Share Posted June 25, 2012 this can be closed as ive just realised i put it in the wrong section ! Quote Link to post Share on other sites
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