Ben Dur
Veteran Member
As i was pulling out of my neighborhood just a few days ago, my turbo exploded. it was an unmistakable noise. not so loud, distinctive POOF that sounded like it came from under the car/ behind the car. then no power, and black smoke in the rearview. as my car has over 200k and ive been tuned and nozzled for over a year now, it was almost expected.
i had trouble with overboost in the past and after chaising the problem, replacing lines, n75, and actuator; i pulled the turbo off to give it a clean, and found the VNT to be quite sticky... i cleaned it, soaked it, etc until it was no longer sticky, but i knew i was on borrowed time.
Being paranoid, and somewhat expecting this to occur, i pulled of the road and cut the engine quickly, (100 yards total distance from pop)
the engine did NOT run away, but after pulling the intercooler, it seems that another 3 seconds and it would have... i dumped, probably, about 2 quarts of oil out of the intercooler, and lower pipe. I also found bits of metal. some rather large (as big as a dime, and thicker than a nickle). the upper pipe was basically dry. rather, as dry as id expect it to be any other day. (not running a catch can) and had no metal that i could detect.
i plan to
1 pull the oil pan, and clean it out, as well as the pickup screen. (in case the oil return line dumped shards into the sump)
2 fresh TDT and Filter
3 New Turbo feed line
4 New return line
5 Turbo (17/22 hopefully)
6 OMI
7 thoroughly clean charge air piping, intercooler
from what ive read people suggest a compression test, is this for runaway situations, or is it necessary?
any other suggestions?
what would people say about running the 17/22 with a stock downpipe for a few weeks? straight pipe. (malone stage 2 tune)
Thanks in advance.
i had trouble with overboost in the past and after chaising the problem, replacing lines, n75, and actuator; i pulled the turbo off to give it a clean, and found the VNT to be quite sticky... i cleaned it, soaked it, etc until it was no longer sticky, but i knew i was on borrowed time.
Being paranoid, and somewhat expecting this to occur, i pulled of the road and cut the engine quickly, (100 yards total distance from pop)
the engine did NOT run away, but after pulling the intercooler, it seems that another 3 seconds and it would have... i dumped, probably, about 2 quarts of oil out of the intercooler, and lower pipe. I also found bits of metal. some rather large (as big as a dime, and thicker than a nickle). the upper pipe was basically dry. rather, as dry as id expect it to be any other day. (not running a catch can) and had no metal that i could detect.
i plan to
1 pull the oil pan, and clean it out, as well as the pickup screen. (in case the oil return line dumped shards into the sump)
2 fresh TDT and Filter
3 New Turbo feed line
4 New return line
5 Turbo (17/22 hopefully)
6 OMI
7 thoroughly clean charge air piping, intercooler
from what ive read people suggest a compression test, is this for runaway situations, or is it necessary?
any other suggestions?
what would people say about running the 17/22 with a stock downpipe for a few weeks? straight pipe. (malone stage 2 tune)
Thanks in advance.