MHM0227 New Member 7 Member For: 4y 3m 14d Posted 06/10/21 09:43 AM Share Posted 06/10/21 09:43 AM Hi Guys, I recently purchased a BF XR6T and the turbo bearings were shot so I had a Pulsar GT3582 core fitted this week by a mechanic. The car is stock. I'm new to these turbos so not sure if this sound is normal once the car is turned off and it spools/shuts down. Video below of the sound. Sorry about the kids in the background. Any feedback would be appreciated. Link to comment Share on other sites More sharing options...
cat007 Member 236 Member For: 6y 3m 23d Posted 06/10/21 09:50 AM Share Posted 06/10/21 09:50 AM Impossible to hear ? Link to comment Share on other sites More sharing options...
MHM0227 New Member 7 Member For: 4y 3m 14d Posted 06/10/21 10:26 AM Author Share Posted 06/10/21 10:26 AM Sorry here is a better video. Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,064 Member For: 16y 8m 18d Gender: Male Location: Melbourne Posted 06/10/21 10:40 AM Share Posted 06/10/21 10:40 AM it does sound like the compressor blades are hitting the housing... you can check that by taking the stuff of the front of the turbo (when it's cooled down, of course) and then grab the nut of the compressor wheel and see how much "play" there is along the shaft axis and to the sides and up/down... if it touches the housing you know it's a dead CHRA or was badly fitted. Link to comment Share on other sites More sharing options...
MHM0227 New Member 7 Member For: 4y 3m 14d Posted 07/10/21 12:15 AM Author Share Posted 07/10/21 12:15 AM Thanks, I had a look this morning and the shaft appears to be ok. I took a video with the pipes off and it spins ok. Maybe I'm just a bit paranoid as it set me back $1300 to fix and don't really want to have to take it apart again. Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,064 Member For: 16y 8m 18d Gender: Male Location: Melbourne Posted 07/10/21 12:29 AM Share Posted 07/10/21 12:29 AM based on that spin-down, it stopped making the noise as it got down to it's slowest rotation speeds... but it was making it at higher speeds... I'd be thinking that's a balance issue and you should be taking it back to where it got fitted for an appraisal of that sound. Link to comment Share on other sites More sharing options...
cat007 Member 236 Member For: 6y 3m 23d Posted 07/10/21 12:45 AM Share Posted 07/10/21 12:45 AM Yikes - yeah definitely take that back and stop driving it if you can. That's not a direct bearing noise - but seems to be as a result of it being out of balance. Link to comment Share on other sites More sharing options...
MHM0227 New Member 7 Member For: 4y 3m 14d Posted 07/10/21 01:04 AM Author Share Posted 07/10/21 01:04 AM Appreciate the feedback. Looks like a trip back to the mechanic. I wont drive it until then. I'll let you know how it goes. Cheers. Link to comment Share on other sites More sharing options...
ThatFknOneBloke New Member 1 Member For: 3y 26d Posted 01/12/21 02:54 PM Share Posted 01/12/21 02:54 PM Hows it going @MHM0227, thought id chime in here, semi related to whats going on with the post, but I had a question! Did you replace the trubo core from your factory turbo with the pulsar drop in? Was it a direct drop in? Im in dire need of a new turbo core as I recently raced a subbie and coming out of 3rd into 4th, the turbo sh*ts the bed and the bearings started rattling its bollocks off, felt like the car was choking. Need a new one asap, as chrissy is around the corner and I dont feel like flexing on the family when I pull up to the christmas lunch in my work van! CIA!😬 1 Link to comment Share on other sites More sharing options...
MHM0227 New Member 7 Member For: 4y 3m 14d Posted 13/01/22 12:51 PM Author Share Posted 13/01/22 12:51 PM Sorry for the late reply. I'm guessing you are sorted by now. Yes was a direct drop in using the stock turbo housing, no tune required as the car is stock. Pulsar ended up replacing the CHRA and I have since had it fitted and running well. Link to comment Share on other sites More sharing options...
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