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Tractor Pulling Discussion Forum

Re: john deere 6030 turbo

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Author  [Modern View]

06-01-2014 07:33:42

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A turbo uses expanding hot gasses to power the turbine side to spin the compressor. A turbo to work properly has to be matched to the engine displacement, cam, fuel flow, ports, intercooler, exhaust restriction and intake restriction. Turbo shops deal with 6030s all the time. Call a shop and tell them what you have and what you want. Install a pyrometer or you risk melting that new turbo and ruining the engine. A separate air to water radiator in front of the factory rad and supplying only the intercooler will drop intake air temps some. An air to air intercooler in front of the rad works even better. It's all about delta T and delta P.

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06-03-2014 07:48:06

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 Re: john deere 6030 turbo in reply to buickanddeere, 06-01-2014 07:33:42  
A single stage radial compressor is good for approx two atmospheres of pressure and still operate in an efficient area of it's flow curve. Above two atmospheres the compressor efficiency drops . Now the air is over heated and power demands , this back pressure on the turbine side increases. Rapidly into the point of diminishing returns when over boosting.

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06-04-2014 20:06:54

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 Re: john deere 6030 turbo in reply to buickanddeere, 06-03-2014 07:48:06  
Here is a link to a random turbo map but it's good enough example.
It shows the turbo operating in it's ideal, most efficient and adding the least heat to the intake air. Operating between 25lbs airflow and a 1.5X pressure ratio ( 7psi boost) to 45lbs airflow and 2.0 pressure ratio with 15psi boost.
Not a whole lot of turbos that can make a 3.0 pressure ratio ( 30 psi) boost and still be running efficient. Ideal operational range will be narrow too.

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