wattwatt Posted February 21, 2015 Share Posted February 21, 2015 Guys, Wonder if someone can advise, I'm having some issues with overboosting (as fun as it is can't imagine my turbos are going to last long if I leave it) I'm running standard J-Spec turbos with a HKS boost controller, I've just re-installed a standard air box with HKS panel filter. I've recently has other issues to sort out and whilst it was in workshop I decided to get a full de-cat fitted and fit a 1 Bar RR and I thought we had found the problem. This is my Controller as not sure what the actual name is: Exhaust Before: Now fully de-cat with RR in place Finally got chance to take it out today for a test run today after other issues being fixed and still my boost gauge is reading about 1.55 bar with controller off so switched it on and the digital reading hit the same (thought my be a gauge issue) I switched the controller to 'low' setting which appears to be set to 0.9 and no change in boost?? Does this lead to a controller issue or is there something else I can try? Quote Link to comment Share on other sites More sharing options...
pedrosixfour Posted February 21, 2015 Share Posted February 21, 2015 Check to make sure that the pressure line from the turbo to the solenoid is not leaking, split or just disconnected. This happened to me at a really hot track day when that particular hose split due to under-bonnet temperatures, saw 2 bar on the boost gauge for a couple of seconds! Quote Link to comment Share on other sites More sharing options...
Nic Posted February 21, 2015 Share Posted February 21, 2015 Has it just started overboosting ie. was it running okay before? or has it started overboosting since you fitted the new exhaust and restrictor ring? Quote Link to comment Share on other sites More sharing options...
wattwatt Posted February 21, 2015 Author Share Posted February 21, 2015 Check to make sure that the pressure line from the turbo to the solenoid is not leaking, split or just disconnected. This happened to me at a really hot track day when that particular hose split due to under-bonnet temperatures, saw 2 bar on the boost gauge for a couple of seconds! Ok cool I will check these few bits and make sure it's not them. Has it just started overboosting ie. was it running okay before? or has it started overboosting since you fitted the new exhaust and restrictor ring? Na it was happening before, it randomly started one afternoon. Whilst it was in workshop to try and source a coolant leak I had, I decided to get the de-cats fitted at whilst it was on the ramp and when we found the old exhaust was split in halve we thought this would of been the cause of my overboost. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted February 21, 2015 Share Posted February 21, 2015 A boost controller cannot lower boost, only raise it. But with a 1 bar ring correctly installed it shouldn't be possible to over boost. Maybe your gauge is faulty? Quote Link to comment Share on other sites More sharing options...
wattwatt Posted February 21, 2015 Author Share Posted February 21, 2015 Yeah I thought this but the controller is also reading the same boost?? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.