Is the 2038R turbo charged and the 2032 normal asperated ?
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    cc1999's Avatar
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    Is the 2038R turbo charged and the 2032 normal asperated ?

    I have been searching spec sheets and the brochure, and cant seem to find the answer to this. It would seem logical to me since this is how the 3 series works. The 3033 is normal aspirated where the 3039 is a turbo charged version of the same engine.

    It appeared that the 2032 and the 2038 share the same engine, so if not through the use of a Turbo, how are the bumping up the power like that?


    We are considering trading up from our 1023E to a new 2032R or 2038R.
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    2019 3033R with Cab, and 72D with Mulch kit
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    rjpoog1989's Avatar
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    Quote Originally Posted by cc1999 View Post
    I have been searching spec sheets and the brochure, and cant seem to find the answer to this. It would seem logical to me since this is how the 3 series works. The 3033 is normal aspirated where the 3039 is a turbo charged version of the same engine.

    It appeared that the 2032 and the 2038 share the same engine, so if not through the use of a Turbo, how are the bumping up the power like that?


    We are considering trading up from our 1023E to a new 2032R or 2038R.
    The 38 has a turbo on a smaller displacement motor.
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    That is correct sir!

    Compact Tractors | 2038R | John Deere US

    Scroll down to the specifications and expand the "Engine" section and it shows you the 2032R is naturally aspirated and the 2038R is turbocharged.
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    cc1999's Avatar
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    Thanks guys.

    That's what I figured, that it had to have a Turbo.
    Just could not find it listed that way. I see it now.
    Thanks again.
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    My current John Deere products
    2012 X740 48" Deck with JD Bagger system
    2012 X740 60 Deck with Mulch kit
    2016 X750 54" deck with Mulch kit
    2017 3039R with Cab, and 320 loader
    2019 X758 with 54" deck and mulch kit
    2019 3033R with Cab, and 72D with Mulch kit
    2019 2038R with Loader

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    Quote Originally Posted by cc1999 View Post
    I have been searching spec sheets and the brochure, and cant seem to find the answer to this. It would seem logical to me since this is how the 3 series works. The 3033 is normal aspirated where the 3039 is a turbo charged version of the same engine.

    It appeared that the 2032 and the 2038 share the same engine, so if not through the use of a Turbo, how are the bumping up the power like that?


    We are considering trading up from our 1023E to a new 2032R or 2038R.
    JD confusion factor strikes again. The latest version of the 2R-series brochures incorrectly lists the 2032R and 2038R has having the same engine - which they do not. Likewise, the 3033R and 3039R do not use the same engine. The turbo engines are all slightly less displacement.

    Below is breakdown of the engines used:

    3033R - 3TNV88C
    3039R - 3TNV86CT (Turbo)
    3046R - 3TNV86CHT (Turbo)

    2032R - 3TNV88C
    2038R - 3TNV86CT (Turbo)
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    Quote Originally Posted by jgayman View Post
    JD confusion factor strikes again. The latest version of the 2R-series brochures incorrectly lists the 2032R and 2038R has having the same engine - which they do not.
    That is technically correct, but they do use the same engine block. Like most turbos, the 2038's engine block is bored out to a smaller displacement to keep it from exploding under increased pressure. Then of course they add the turbo, and so you get the different engine model number.
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    cc1999's Avatar
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    Quote Originally Posted by jgayman View Post
    JD confusion factor strikes again. The latest version of the 2R-series brochures incorrectly lists the 2032R and 2038R has having the same engine - which they do not. Likewise, the 3033R and 3039R do not use the same engine. The turbo engines are all slightly less displacement.

    Below is breakdown of the engines used:

    3033R - 3TNV88C
    3039R - 3TNV86CT (Turbo)
    3046R - 3TNV86CHT (Turbo)

    2032R - 3TNV88C
    2038R - 3TNV86CT (Turbo)
    Good to know !

    Very interesting.

    I am happy to learn I wasn't imagining it, that I did in fact read they used the same engine no mention of turbo's, which didn't really make sense.

    The actual engines you listed makes perfect sense.

    So it would appear that if we trade our 1023E for a 2038R it will have the same engine as our 3039R.
    Not sure why the 1hp difference, maybe the room under the hood allows the 3039 to breath a slightly better or maybe just tuning changes in the software?
    My current John Deere products
    2012 X740 48" Deck with JD Bagger system
    2012 X740 60 Deck with Mulch kit
    2016 X750 54" deck with Mulch kit
    2017 3039R with Cab, and 320 loader
    2019 X758 with 54" deck and mulch kit
    2019 3033R with Cab, and 72D with Mulch kit
    2019 2038R with Loader

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    Quote Originally Posted by cc1999 View Post
    So it would appear that if we trade our 1023E for a 2038R it will have the same engine as our 3039R.
    Not sure why the 1hp difference, maybe the room under the hood allows the 3039 to breath a slightly better or maybe just tuning changes in the software?
    I'm not entirely convinced that there is actually a 1hp difference. The 3039 is rated at 2600 RPM and the 2038 is rated at 2500 RPM.

    There's some funny stuff going on with JD's Yanmars. The 3TNV88C, for example, the engine in my 2032 and your 3033 (how many tractors does one man need?? ), is used in many 35hp tractors, including Yanmar's:

    YT235 - Yanmar Tractor

    In that one, it's rated at 2800 RPM.

    It would be great if someone developed tuning software for these tractors like they do for cars, then we'd know what's actually going on.
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    Owned in the past:
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    Quote Originally Posted by mike01 View Post
    I'm not entirely convinced that there is actually a 1hp difference. The 3039 is rated at 2600 RPM and the 2038 is rated at 2500 RPM.

    There's some funny stuff going on with JD's Yanmars. The 3TNV88C, for example, the engine in my 2032 and your 3033 (how many tractors does one man need?? ), is used in many 35hp tractors, including Yanmar's:

    YT235 - Yanmar Tractor

    In that one, it's rated at 2800 RPM.

    It would be great if someone developed tuning software for these tractors like they do for cars, then we'd know what's actually going on.
    Interesting. All good points on the RPM ratings.

    As to the tuning. I am not sure what models they offer it for.
    However I believe
    Duramaxtuners offers tractor tuning.


    Power Manager/Tuning - John Deere - Case - New Holland - Versatile - Tractors


    I have been using there stuff on my pickups for a few years now.
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    My current John Deere products
    2012 X740 48" Deck with JD Bagger system
    2012 X740 60 Deck with Mulch kit
    2016 X750 54" deck with Mulch kit
    2017 3039R with Cab, and 320 loader
    2019 X758 with 54" deck and mulch kit
    2019 3033R with Cab, and 72D with Mulch kit
    2019 2038R with Loader

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    Quote Originally Posted by mike01 View Post
    I'm not entirely convinced that there is actually a 1hp difference. The 3039 is rated at 2600 RPM and the 2038 is rated at 2500 RPM.

    There's some funny stuff going on with JD's Yanmars. The 3TNV88C, for example, the engine in my 2032 and your 3033 (how many tractors does one man need?? ), is used in many 35hp tractors, including Yanmar's:

    YT235 - Yanmar Tractor

    In that one, it's rated at 2800 RPM.

    It would be great if someone developed tuning software for these tractors like they do for cars, then we'd know what's actually going on.

    There was a fairly lengthy thread on that very subject several months ago. In that thread I pointed out that very same point. The distinctions JD makes in their marketing materials use different RPM ratings. My own personal guess is that they use the various numbers to meet regulatory requirements and with the proper software and tuning module, you could easily "boost" most of these engines. Look at the Yanmar tech sheets. Deere publishes numbers but they never match the peak HP rating that Yanmar publishes.
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