Cig twin step w/575s
04-24-2014, 04:47 PM
#12
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Join Date: Mar 2002
Location: Livonia, Michigan
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My friends TG with 725 Zuls runs 29" Hydromotives but with 1.36 ratio. You might run out of prop with a 1.5 not to mention difficult to plane with the big wheels. His setup runs 99-100 in fresh water.
04-24-2014, 06:53 PM
#13
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My '03 with 525's has labbed 32's, ITS with sport masters, runs 84-85mph. We have the same boat at shop that has a set of 30's on it. Also have a 575 boat there it has 32's on it.
04-24-2014, 07:39 PM
#14
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I just tried pming you back unlimited39 but your email is full. I basically said what sre said about the drive ratio. If they bumped the motors to 700hp and have 30's on it I would guess the changed the gear ratio. Check and see. My Hustler 388 have 700's and they changed the gears to 1.36 I believe it is. I am turning 32 5 blades.
04-24-2014, 07:40 PM
#15
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Are 30 pitch bravo 1s common on 575s with a twin step? These motors are re built by Ron potter and have the Arizona speed shop pulleys, and also have ported and polished heads- there dynoed at 700 hp, we ran the boat up to 84 and had trim and power left, also tabs were at 3, don't remember the RPMs , my question is- do 30s sound right for this set up- or would 32s seem more logical?? Thanks for your input!
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