Hustler Super Z 104"

Discussion in 'Lawn Mowing Equipment' started by KV9064, Oct 14, 2012.

  1. puppypaws

    puppypaws LawnSite Fanatic
    Messages: 9,177

    The 38 hp Kohler engine option sounds like you are really getting more power, but when you read this (J1995 Power 3 34.2) in the engine specs it tells the real story. J1940 allows the engine manufacturers to add up to 15% of actual hp and list it in that manner for advertising purposes as so-called gross hp. This means by showing a 38 hp rating they are staying well within the parameters of the J1940 classification by being only 10% above the true usable hp which is 34.2. To prove this I am listing below information Kohler includes in their specifications.


    "Kilowatt (kW) and gross torque (fl-lbs) specifications for Kohler general purpose engines are calculated pursuant to the Society of Automotive Engineers (SAE) J1940 - calculated with the air cleaner and muffler removed, per the SAE standard. Actual engine gross torque are lower and affected by, but not limited to, accessories (air cleaner, exhaust, charging, cooling, fuel pump, etc.), application, engine speed and ambient operating conditions (temperature, humidity and altitude)."

    J1995 Power Certified by 3rd Party Witness

    TJ1995 Power 3 34.2 / This is the usable hp of the Kohler CV980 38 hp engine

    The Kawasaki engines are now power-rated to a tighter, automotive-caliber SAE J2723 standard, which they tell you will keep their listed hp within 2% of actual usable hp at all times.

    Kawasaki has now listed their FX1000V (37 hp at the old rating) at 35 hp under the closer tolerance rating system, and what this means is...they are guaranteeing their 35 hp listing to be with 2% of actual hp...2% of 35 = .70 hp which equates to in a worst case scenario their listed 35 hp engine may in actuality have a true 34.3 hp, but guaranteed to be no less.

    You now have the average person buying a mower with what he believes to be a Kohler 38 hp engine, when in reality it is a 34.2 hp engine. He bought the mower with this engine for the fact of believing he was getting 3 more hp over the 35 hp Kawasaki engine, when really the Kawasaki 35 hp engine had more usable hp than the Kohler 38 hp engine, not but 1/10 of a hp, which is non-detectable, but would still be greater.
  2. Realslowww

    Realslowww LawnSite Bronze Member
    Messages: 1,527

    I have never seen anybody so anal about lawnmower's. :laugh:
  3. puppypaws

    puppypaws LawnSite Fanatic
    Messages: 9,177

    I just want you to be more educated on your engine selections if you ever make enough money to trade...:laugh:
  4. StanWilhite

    StanWilhite LawnSite Silver Member
    Messages: 2,397

    OH....that hurt! :laugh:
  5. GMLC

    GMLC LawnSite Platinum Member
    Messages: 4,345

    Is a rear discharge more of a rough cut mower?

    If so it wouldn't seem appropriate for sports fields or manicured lawns.
  6. puppypaws

    puppypaws LawnSite Fanatic
    Messages: 9,177

    You've got a very good point here, but if grass is cut on a very strict schedule the rear discharge deck will do a good job.

    My neighbor has a rear discharge Super Z and we meet when cutting the sides of the road that runs by each of our farms. His mower leaves a very respectable cut if the grass has not gotten too large, but when I mow up to where he's stopped and the grass had gotten somewhat larger than normal, I can see a windrow directly between where the tires had run. Sometimes to the point I just run back over his windrow at top speed and fan it out to make it look better.
  7. GMLC

    GMLC LawnSite Platinum Member
    Messages: 4,345

    Good to know, thanks. I have zero experience with rear discharge.
  8. Realslowww

    Realslowww LawnSite Bronze Member
    Messages: 1,527

    I have no interest in the newer Super Z,I could have one delivered tommarrow if I desired.

    I would have to change the drive for what I want to do and it makes more sence to change and mod one of the mowers I currently have to make what I want.

    I will be it the new mower is a nice mower but not what I want, the pulling capacity for it is only rated at 500 so you see the new 104 changed the drive because of it.

    You have both old and new do me a favor look at the 66 and compare where the control linkages hook up on the pumps on both mowers.

    What would work better for me would be to put 44 HP Generacs on both my 60 and 72 and update both drives as needed,update the 72 for speed and do the 60 for pulling and steep hills.

    To me the new drive and a bigger motor is the only thing the new mower offers and for the type of work I do the rest is mute.
  9. StanWilhite

    StanWilhite LawnSite Silver Member
    Messages: 2,397

    Oh boy, I know I'm going to look like the stern looking elderly school teacher with glasses and her hair up in a "bun" but I'm going to do this anyway....only because I've noticed it before.
    Realslow, as I said, I don't mean to be condescending but I think you would want to know if you're using the word "mute" when it should be "moot".
    But, don't feel bad, it's a common mistake.

    (I'm not looking these 2 words up in the dictionary, just an "off of the top of my head" definition).

    The word "moot" means "it's irrelevant" in "it doesn't matter anyway". The word "mute" means to "quieten down" as in "you mute your car stereo when you go thru a drive thru".

    Sorry if I sound like a "know it all jerk", but if the tables were turned, I would want to know . I mentioned this once before but I don't think you got it.
    Go me an jerk! :) Stan
  10. Ridin' Green

    Ridin' Green LawnSite Fanatic
    Male, from Michigan
    Messages: 17,828

    According to the PDF, the 38 Kohler is a CA option only.

    From the PDF-

    Kohler (CA only)

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