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Author	Topic:   DF140 ideal power for Montauk 170?
smgrogue	posted 08-16-2002 02:14 PM ET (US)         I was just browsing the Suzuki site and noted that the DF140, at 410lbs is only 24lbs heavier than the Merc 90/115 (and, curiously, 6lbs lighter than the DF90/115)...impressive power to weight ratio for a 4s. Seems like this would be a good power swap option for the Montauk 170 if the hull wasn't too tweaky with that amount of hp.
Bigshot	posted 08-16-2002 02:42 PM ET (US)             Lighter than the 90/115 because of the amount of metal they honed out to increase the displacement.
JBCornwell	posted 08-16-2002 05:47 PM ET (US)             Too much power for 170. Red sky at night. . . JB :)
george nagy	posted 08-16-2002 06:20 PM ET (US)             The new 170 weighs nearly the same as the classic 18'.
jimh	posted 08-16-2002 11:57 PM ET (US)             That difference in weight must be attributable to more than the few ounces of aluminum removed to increase the bore of the cylinders. I think Suzuki went on a conscious effort to trim weight on that engine to get the performance up a bit.
tabasco	posted 08-17-2002 06:30 AM ET (US)             I think the boat could handle the additional HP but don't think it would be necessary. It would probably run 60 MPH at WOT. I am very happy with my 115 HP EFI on the Montauk 170. As I stated in the comments section of Cetacea the boat does 50.3 MPH WOT.
smgrogue	posted 08-18-2002 06:26 PM ET (US)             Tabasco--I did not realize you had taken the plunge yet. I for one really appreciate that you are willing to share your experience with the 115. I will try not to pepper you (no pun intended) with too many questions at once. At this point I think it best to move my questions to the Cetacea p. 58 discussion forum.
whalerdude	posted 08-27-2002 07:40 PM ET (US)             It may be right on the new 170 but you can't buy it without a merc! It is too much weight for the old montauk. Although I saw a montauk with one on it. It looked ridiculous on the back due to the size of the engine.
smgrogue	posted 08-28-2002 12:07 AM ET (US)             While you buy one without a Merc, you can buy one with say a 90 Merc 2s as suggested by Tabasco, and then find a way to offload it. Tabasco worked out a trade with a Merc dealer for his preferred motor, a Merc 115EFI. From what I've heard both the Yam/Merc and Suzi 4s motors are good, but I don't know enough to say if one is better than the other. Assuming 115 is the ideal hp for the 170, then the Merc has a clear weight advantage over the Suzi. Unless the Suzi is superior in other ways, it would seem that Tabasco chose the best motor.
Ferdinando	posted 08-28-2002 12:13 AM ET (US)             Tabasco: Are you voiding your warranty on the 170 by having a 115 on it??????? Fred
tabasco	posted 08-28-2002 08:49 AM ET (US)             Fred- Don't know.......you would have to ask Whaler. The motor is the exact same weight as the 90 HP 4 Stroke that came with the boat.The main difference between them is the torque. It really shouldn't effect the hull in anyway.Other Whalers (older outrage) in the 17-18 Ft range have a HP rating of 150 HP. The 16 Ft Dauntless has a rating of 115HP

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