02-19-2012, 07:02 PM
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#9 (permalink)
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Base Member
Join Date: Feb 2012
Location: San Diego
Posts: 159
Drives: 13 370Z Mag Black M6
Rep Power: 14
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Quote:
Originally Posted by gsxr750
I had a turbo 300zx anniversary edition , and the previous owner had the turbo rebuilt 2 times in only 40k miles.
My brother had a turbo diesel ford 2007 f350, he did the turbo remap and bigger exhaust, started having excessive carbon build up in the intake, and turbo, also started having injector problems. Major problems at only 30k miles.
The simple facts with turbos,
1. Turbine is proned the early failure due to the tremendous temperatures they operate at and also get impeller wear and bearing failure.
2. Internal engine components are subjected increased stress, due to the increased power made by the turbo.
3. Doing remapping and increasing HP out to the turbo, you have to make sure by doing so that you are not exceeding the design limits of the engines internal components.
I would always take a larger cubic inch normally aspirated gas engine over a small high output turbo any day of the week.
Diesels do have their place for towing or in industrial or 18 wheelers etc. but not in cars.
Then you have the added cost of diesel over pump gas.
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Sounds like your family is cursed. Turbos are no less reliable than NA cars. Most get better gas mileage. Diesels are more reliable than petrol and last longer. My TT Supra converted to a single running 29psi ran without issues until I sold it at 90k miles. My Evo 8 running 22psi ran perfect. Every one I know has never had any issues outside the norm with a turbo engine and almost all have been modified.
Sucks you and your brother had problems, but that's far from fact to justify making a blanket statement like that. I will agree, however, that tuning needs to be done smart. Exceeding the threshold of your engine's capacity will of course cause damage and things to fail. But that's true for any type of motor.
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