I have read countless threads and talked to a lot of experienced people and still can not find a solution.
Turbo #1
Brand new Garrett TO4E 60 trim
COLD A/R .60
HOT A/R .69
I ran this turbo for about 15k. I made 489WHP and 510TQ at 21PSI i ran 20psi almost the entire 15k. It started smoking badly, so i took off the cheap autozone filter and found that i had A TON of axial shaft play im talking like 1/8in or better. It tore up the back side of the turbine and ground into the front of the compressor, NO radial shaft play. The thrust bearing was still there but worn badly. there was no scoring on the shaft and no coking. it looked geat inside except the massive amount of wear on the thrust washer. I have a full 3in exhaust, -4 oil feed and -10 oil drain. The oil drain comes straight out the bottom of the turbo. Had a couple of people tell me that my air filter was to small and that maybe my BOV was not working correctly because i had some bad compresor surge. I replace both. Got a new SSQV and bought a HUGE K&N and sold the turbo. I used Castrol GTX 10W30 and later in the 15k went to a 20w40.
TURBO #2
I borrowed a friends turbo that is identical to the first turbo except it was water cooled. I put about 1000 miles on it with no problems i did plum coolant to it. I was running MOTUL 300V 20w50
TURBO #3
Garrett T67 USED
COLD A/R .50
HOT A/R .69
I ran this turbo no more that 200-500 miles before that same thing happened to turbo #1 except not as severe. I was checking it and caught it before it got real serious. Had it rebuilt by a trusted turbo builder down in phoenix. Bearings all looked good again except the 360 degree thrust washer had alot of wear in it. when we removed that washer it was stuck and slightly galled that shaft, we used a conventional 270 bearing because i guess it grabbed the shaft in a different spot. Again OIL was MOTUL 300V 20W50, A respected tuner in phoenix told me that i should try changing out my hot side because i was possibly to restrictive. I should note that i was getting some sever compressor surge in full boost some of the time. I took me about 3 times before i figured out what it was then pulled the turbo. This is another reason i switched the turbine housing to a .89
TURBO#4
Same as above except a .89 A/R on the turbine. went about 200 miles and developed a small amount of axial play! i am still running this turbo and it is getting worse very slowly.I am hardly driving the car nowadays. it seems like its starting but burn alot of oil again. and now the axial play is pretty severe. Also running MOTUL 300V 20W50
I AM running out of money to deal with this problem and i need to get some serious advice before i put any more money into it.
I put the oil feel line into a container and started the car with the turbo off. It pumps ALOT of oil out in a very small amount of time. If you need anymore information please ask my mods are in my sig.
THANKS IN ADVANCE
Turbo #1
Brand new Garrett TO4E 60 trim
COLD A/R .60
HOT A/R .69
I ran this turbo for about 15k. I made 489WHP and 510TQ at 21PSI i ran 20psi almost the entire 15k. It started smoking badly, so i took off the cheap autozone filter and found that i had A TON of axial shaft play im talking like 1/8in or better. It tore up the back side of the turbine and ground into the front of the compressor, NO radial shaft play. The thrust bearing was still there but worn badly. there was no scoring on the shaft and no coking. it looked geat inside except the massive amount of wear on the thrust washer. I have a full 3in exhaust, -4 oil feed and -10 oil drain. The oil drain comes straight out the bottom of the turbo. Had a couple of people tell me that my air filter was to small and that maybe my BOV was not working correctly because i had some bad compresor surge. I replace both. Got a new SSQV and bought a HUGE K&N and sold the turbo. I used Castrol GTX 10W30 and later in the 15k went to a 20w40.
TURBO #2
I borrowed a friends turbo that is identical to the first turbo except it was water cooled. I put about 1000 miles on it with no problems i did plum coolant to it. I was running MOTUL 300V 20w50
TURBO #3
Garrett T67 USED
COLD A/R .50
HOT A/R .69
I ran this turbo no more that 200-500 miles before that same thing happened to turbo #1 except not as severe. I was checking it and caught it before it got real serious. Had it rebuilt by a trusted turbo builder down in phoenix. Bearings all looked good again except the 360 degree thrust washer had alot of wear in it. when we removed that washer it was stuck and slightly galled that shaft, we used a conventional 270 bearing because i guess it grabbed the shaft in a different spot. Again OIL was MOTUL 300V 20W50, A respected tuner in phoenix told me that i should try changing out my hot side because i was possibly to restrictive. I should note that i was getting some sever compressor surge in full boost some of the time. I took me about 3 times before i figured out what it was then pulled the turbo. This is another reason i switched the turbine housing to a .89
TURBO#4
Same as above except a .89 A/R on the turbine. went about 200 miles and developed a small amount of axial play! i am still running this turbo and it is getting worse very slowly.I am hardly driving the car nowadays. it seems like its starting but burn alot of oil again. and now the axial play is pretty severe. Also running MOTUL 300V 20W50
I AM running out of money to deal with this problem and i need to get some serious advice before i put any more money into it.
I put the oil feel line into a container and started the car with the turbo off. It pumps ALOT of oil out in a very small amount of time. If you need anymore information please ask my mods are in my sig.
THANKS IN ADVANCE
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