Isaacxr6t New Member 20 Member For: 8y 7m 22d Posted 09/12/15 11:58 AM Share Posted 09/12/15 11:58 AM I own a 2004 ba xr6t with a standard turbo.I have noticed that when my turbo spools under load (generally in 4th or 5th gear) it makes a strange surging noise. The spool does not sound constant like it should. I have no idea what the problem may be. Looking for ideas? Thanks Link to comment Share on other sites More sharing options...
discostig Manual mode ________________________ All day, erryday Donating Members 13,798 Member For: 16y 4m 26d Gender: Male Location: Probably above atmospheric pressure Posted 09/12/15 02:00 PM Share Posted 09/12/15 02:00 PM Gear is too high hahaha Got a boost gauge that you are sure is accurate? They do can overboost if loaded up in high gears on the highway, depending on parts fitted and the tune. Link to comment Share on other sites More sharing options...
Isaacxr6t New Member 20 Member For: 8y 7m 22d Posted 10/12/15 07:51 PM Author Share Posted 10/12/15 07:51 PM Gear is too high hahaha Got a boost gauge that you are sure is accurate? They do can overboost if loaded up in high gears on the highway, depending on parts fitted and the tune.I'm concerned with the way the car is running so I will be getting it retuned soon. So is this issue an indication of over boost? Link to comment Share on other sites More sharing options...
discostig Manual mode ________________________ All day, erryday Donating Members 13,798 Member For: 16y 4m 26d Gender: Male Location: Probably above atmospheric pressure Posted 11/12/15 05:09 AM Share Posted 11/12/15 05:09 AM Couldn't say sorry, I just know mine boosts up easily on the highway if I load it up in higher gears. It's tuned in open loop though which might make it more prone to stuff like that.#1 tip is PICK A GOOD TUNERYes, caps were necessary. Link to comment Share on other sites More sharing options...
RaceEquipped Member 52 Member For: 8y 4m 6d Gender: Male Posted 13/12/15 01:54 AM Share Posted 13/12/15 01:54 AM Most likely a wastegate/boost issue (low rpms) the wastegate may be inconsistently opening/closing as you hit the threshold. Best bet is to go over vacuum lines to the wastegate, and install a gauge to see whats going on. Link to comment Share on other sites More sharing options...
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