Turbine Housing Cracks
09-18-2007, 02:37 PM
#1
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Turbine Housing Cracks
MY 16G has about 4 or 5 superficial cracks in it (by superficial i mean not all the way through yet). I think its already been ported in the exhaust housing to remove cracks once, should i try it again or let it slide and baby it?
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09-18-2007, 03:17 PM
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If they don't go all the way through they don't matter. In a worst case scenario these 7cm turbine housings are not expensive to replace. I've ran many cracked MHI turbine housings. Worst cracks I saw were on a stock Talon 14B and even they didn't go all the way through or hurt performance.
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09-18-2007, 04:14 PM
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you can stop one from spinning at idle with your finger :gay:
the problem here is, do the cracks cause the exhaust to leak past the turbine wheel....or will the eventually do so.
if eventually, how many heat cycles will cause it. 1400° cruise can do it. as easily as 1600° in boost.
the problem here is, do the cracks cause the exhaust to leak past the turbine wheel....or will the eventually do so.
if eventually, how many heat cycles will cause it. 1400° cruise can do it. as easily as 1600° in boost.
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09-18-2007, 06:56 PM
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I dunno...
I know this is a little extreme, but one of the fire engines at my work had something sucked into the intake of the turbo, broke a lot of **** in the compressor, and the outlet of the compressor looked like someone had taken a chisel and scored it pretty deep... then the "mechanics" tried to tell us that the engine was fine and didn't ingest any metal. I realize a diesel is a tad bit different than a petrol engine, but I wouldn't trust any of it.
I know this is a little extreme, but one of the fire engines at my work had something sucked into the intake of the turbo, broke a lot of **** in the compressor, and the outlet of the compressor looked like someone had taken a chisel and scored it pretty deep... then the "mechanics" tried to tell us that the engine was fine and didn't ingest any metal. I realize a diesel is a tad bit different than a petrol engine, but I wouldn't trust any of it.
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