Borgwarner Twin Scroll 7670 With Dyno Graph
I can say the car is stinking fast. First two sessions of the shake down run were great. Went out for the third session, hit the back straight and see a m3 passing me while at WOT. I'm thinking wait how is that even possible (Nobody could even come close to my backstraight speed.)Look down.... 0 boost and a supercharger like whine. Limped it in to see if it was any easy fix.
Luckliy I had the guys from RRE down doing track support so they checked and found no boost leaks and from the intake side it looks like the wheel started digging in to the inside of the housing. It SO hard to see. Running the car, There is a heavy metalic like whine, and with the intake off and putting your hand over the intake side it definently sucks... no leaks everything bulges like it should. The one interesting thing is that when you stop the car... the wheel just stops instantly... typically I was told on a BB turbo the wheel keeps spining.. this just comes to an abrudt stop.
So the car is headed back down to RRE for the turbo to be removed and inspected... But if it was damaged from the original issue, I'm wondering if that may have been part less then stellar results? I don't really know... but I'm trying my hardest to get a solution together before Tuesday.
Luckliy I had the guys from RRE down doing track support so they checked and found no boost leaks and from the intake side it looks like the wheel started digging in to the inside of the housing. It SO hard to see. Running the car, There is a heavy metalic like whine, and with the intake off and putting your hand over the intake side it definently sucks... no leaks everything bulges like it should. The one interesting thing is that when you stop the car... the wheel just stops instantly... typically I was told on a BB turbo the wheel keeps spining.. this just comes to an abrudt stop.
So the car is headed back down to RRE for the turbo to be removed and inspected... But if it was damaged from the original issue, I'm wondering if that may have been part less then stellar results? I don't really know... but I'm trying my hardest to get a solution together before Tuesday.
Last edited by leetEVO; Nov 6, 2011 at 07:22 AM.
I can say the car is stinking fast. First two sessions of the shake down run were great. Went out for the third session, hit the back straight and see a m3 passing me while at WOT. I'm thinking wait how is that even possible (Nobody could even come close to my backstraight speed.)Look down.... 0 boost and a supercharger like whine. Limped it in to see if it was any easy fix.
Luckliy I had the guys from RRE down doing track support so they checked and found no boost leaks and from the intake side it looks like the wheel started digging in to the inside of the housing. It SO hard to see. Running the car, There is a heavy metalic like whine, and with the intake off and putting your hand over the intake side it definently sucks... no leaks everything bulges like it should. The one interesting thing is that when you stop the car... the wheel just stops instantly... typically I was told on a BB turbo the wheel keeps spining.. this just comes to an abrudt stop.
So the car is headed back down to RRE for the turbo to be removed and inspected... But if it was damaged from the original issue, I'm wondering if that may have been part less then stellar results? I don't really know... but I'm trying my hardest to get a solution together before Tuesday.
Luckliy I had the guys from RRE down doing track support so they checked and found no boost leaks and from the intake side it looks like the wheel started digging in to the inside of the housing. It SO hard to see. Running the car, There is a heavy metalic like whine, and with the intake off and putting your hand over the intake side it definently sucks... no leaks everything bulges like it should. The one interesting thing is that when you stop the car... the wheel just stops instantly... typically I was told on a BB turbo the wheel keeps spining.. this just comes to an abrudt stop.
So the car is headed back down to RRE for the turbo to be removed and inspected... But if it was damaged from the original issue, I'm wondering if that may have been part less then stellar results? I don't really know... but I'm trying my hardest to get a solution together before Tuesday.
So, the turbo is off and as far as RRE can tell the bearings are fine. The turbo does not spin because the shaft is bent. That is making it bind on the bearings. One sise of the compressor wheel has relatively undamaged blades. They do not contact the housing. On the opposite side of the wheel the blades are all ground away. We are pretty sure that it wasn't caused by the prior motor’s death.
To be continued:
http://youtu.be/B7XQq5G7VCA
To be continued:
http://youtu.be/B7XQq5G7VCA
Evolving Member
Joined: Aug 2011
Posts: 210
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From: Earth
So, the turbo is off and as far as RRE can tell the bearings are fine. The turbo does not spin because the shaft is bent. That is making it bind on the bearings. One sise of the compressor wheel has relatively undamaged blades. They do not contact the housing. On the opposite side of the wheel the blades are all ground away. We are pretty sure that it wasn't caused by the prior motor’s death.
To be continued:
To be continued:
Definitely To be continued!
Im so sorry to hear this Leet! Don't quit!!!!
