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ContinuousWave Whaler Moderated Discussion Areas ContinuousWave: Post-Classic Whalers Top Speed 150 Sport
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Author | Topic: Top Speed 150 Sport |
rslsail |
posted 10-05-2009 12:47 PM ET (US)
I just purchased a 2004 Boston Whaler 150 SPORT in pristine condition. It has a [Mercury FOURSTROKE] 60-HP EFI Bigfoot. According to the [engine controller history] the engine has 41 hours on it and has never been run hard. The engine seems to run perfectly. Here I have been reading people's claims of top speeds of [35- to 39-MPH]. I was out on a lake this weekend with no wind or chop, and a portable GPS. Full out at about 5,600-RPM, just me in the boat, about 200-lbs, I could not get the boat [above] 27-nautical-miles-per-hour. I'd really like to know how to find additional speed. |
Tohsgib |
posted 10-05-2009 12:52 PM ET (US)
Trim? |
dscew |
posted 10-05-2009 01:19 PM ET (US)
Might need a propeller with a steeper pitch. |
tombro |
posted 10-05-2009 02:43 PM ET (US)
My 2003 150 Sport with a 60-HP Mercury two-cycle could easily achieve these speeds, trimmed out. I do recall the FOURSTROKE Bigfoot being a different gearing and not quite as fleet-footed. |
mw011i |
posted 10-05-2009 02:48 PM ET (US)
I have a Montauk 150 with this same engine and it'll do about 35 [MPH?] with a Vengeance propeller. I would think the Montauk is probably a little heavier, but I'm not sure. |
rslsail |
posted 10-05-2009 02:55 PM ET (US)
[The boat has] a stock propeller. I thought I saw something about not using a stainless steel propeller. The engine was tilted all the way down. Should I trim it at more angle? |
Tohsgib |
posted 10-05-2009 02:58 PM ET (US)
UP, UP and AWAY...how BEAUTIFULL.... Trim it till she starts to slip, then tap back down until it grabs, should see 35. |
Tohsgib |
posted 10-05-2009 02:59 PM ET (US)
PS..get a stainless steel propeller. Alum is for jon boats ;) |
Tom W Clark |
posted 10-05-2009 03:27 PM ET (US)
27 knots = 31 MPH. You should be using a Mercury 13-1/8" x 14" Vengeance or Stiletto 13-1/4" x 13" Advantage 4.25 propeller and getting 35-36 MPH at about 6000 RPM. You'll never get anything close to that if you do not trim your motor out to optimize the speed and handling. |
Tom W Clark |
posted 10-05-2009 03:28 PM ET (US)
If using a stainless steel propeller on that motor be sure to use a Mercury Flo-Torq III hub kit to help alleviate prop rattle and shift clunk. |
elaelap |
posted 10-05-2009 04:53 PM ET (US)
Interesting. My little classic 15 center console easily exceeds 40 mph with essentially the same motor (a Yamaha 60 hp four stroke in my case), with a stock Yamaha aluminum 15" pitch prop: http://s22.photobucket.com/albums/b309/elaelap/?action=view& current=Lourdesropa2066.jpg Difference in weight, I imagine, because those 'Accutrack' (sp?) hulls on the 150s, 170s, and 190s are noted for their swiftness. Tony |
elaelap |
posted 10-05-2009 04:54 PM ET (US)
Whoops!, apples & oranges. I failed to notice that your motor, unlike mine, is Bigfoot geared. |
rslsail |
posted 10-05-2009 04:56 PM ET (US)
13-1/8" x 14" doesn't seem to be a size |
fishgutz |
posted 10-05-2009 05:27 PM ET (US)
13 1/8" is the Diameter. 14" is the pitch. Pitch is essentially the distance it travels in one revolution of the prop. |
Tom W Clark |
posted 10-05-2009 05:35 PM ET (US)
Tony, A 2004 150 Sport is nothing like your classic Sport 15 and it is not an Accutrack hull either. With its 900 pound weight and 6' 6" beam, it is MUCH larger than the classic 15 footer. |
rslsail |
posted 10-05-2009 05:37 PM ET (US)
I understand the dimensions, I just don't think [Mercury Marine] make a VENGEANCE prop in that size, at least I couldn't find it on-line. |
Tom W Clark |
posted 10-05-2009 05:38 PM ET (US)
Correction: 13-3/8" x 14" Mercury Vengeance, part # 48-17314 |
Tom W Clark |
posted 10-05-2009 05:40 PM ET (US)
http://www.mercurypartsexpress.com/us/ vengeance-propeller-13-3-8-x-14-rh-ss-3-bl-p733.html |
elaelap |
posted 10-05-2009 05:51 PM ET (US)
You're a new member, rslsail. If you stick around, you'll learn never to question Tom Clark's statements here. Like the Pope, he is (mostly) infallible. Tony |
ratherwhalering |
posted 10-05-2009 06:56 PM ET (US)
It appears that the Emperor has no clothes. |
bloller |
posted 10-05-2009 08:15 PM ET (US)
I have [for sale] the aforementioned Stiletto prop 13 1/4 x 13. It performed very similarly to the 13 3/8 x 14 Vengeance that I decided to stick with. My boat is a 1970 16' with a 2004 60hp Mercury Fourstroke EFI Bigfoot. You definately will want a Flo Torq III if you go to a stainless prop over the A30 series gray Mercury aluminum. |
Tom W Clark |
posted 10-05-2009 08:31 PM ET (US)
Hey! I resemble those comments. |
jimh |
posted 10-05-2009 10:18 PM ET (US)
[Moved to POST-CLASSIC.] |
ryland |
posted 10-06-2009 12:11 AM ET (US)
I have a 2004 150 Sport with 60-HP BIGFOOT that goes 35- to 40-MPH with no problem with just me on board. |
wldrns1 |
posted 10-06-2009 08:32 AM ET (US)
My 2008 150 Sport came with the SS 17314 prop mentioned above. I found engine rpms exceeded 6k. I went with the Vengeance 13 1/4 x 15 854354 which is a new part number. Max RPM's trimmed out is now in spec. Top speed is 37-39 depending on condition. Definately get a Flo Torq III hub kit to eliminate prop rattle. There are some older Posts with this exact comparison in the Performance section. I'm near Syracuse if you want to go for a spin in mine or try the original 14p and/or my new 15p. I also have a Black Max 15p I keep as a spare. Your welcome to try them all here if you like but none are for sale. Joe |
elaelap |
posted 10-06-2009 04:52 PM ET (US)
rslsail, And Joe's kind offer above is the true ethos here (except when some folks--never ever me!) start wandering off into lumpy political seas. I've sailed, surfed & dived almost all of my life, but when I bought my first motorboat (not counting dinks)--an ancient Katama Whaler--I discovered this place and I've never looked back. I can't imagine finding anywhere else with more helpful information about boating in general and Whalers in sometimes incredibly boring minutiae, and even though we rag each other on occasions about non-boating-related issues, it's really a great virtual family gathering--the genetic link being our love for these sometimes-exasperating hunks of fiberglass, foam and stainless steel. Welcome! Tony |
Buckda |
posted 10-06-2009 04:55 PM ET (US)
Tony - My father remarked on the same thing on Sunday afternoon after returning from his first ever rendezvous... |
rslsail |
posted 10-10-2009 06:39 PM ET (US)
Hi guys, just went out and with a little trimming got the boat up to 31 knots, thanks for the advice |
ScottS |
posted 10-15-2009 04:04 PM ET (US)
31 knots = 35.6 MPH, so it sounds like your trimming puts you in line with what most others have reported. I've got a 2004 150 Sport with 60 FourStroke EFI BigFoot and 13-3/8D x 14P Stainless Vengeance on a Flo-torq III hub. I also reach between 35 and 36 MPH. If you upgrade to a stainless prop be sure to get the Flo-torq III hub like Tom suggested to reduce/eliminate clunks/rattles. I'm very happy with the performance of this prop no matter how much weight I have in the boat (just me or whole family with lots of gear). The Whaler website shows 35.1 MPH for the 150 Montauk with the same motor and prop I have. If I remember correctly, Whaler's testing of the 150 Sport with the same motor and prop was just a few tenths faster. On the Mercury site they did a test with a 10 3/8" x 14" Vengeance stainless prop and only reached a top speed of 33.9 MPH. Ryland, how are you able to reach 40 MPH? Is this per a GPS or speedometer? Do you have a different prop or some other modification? |
rslsail |
posted 10-15-2009 05:28 PM ET (US)
Great info Scott thanks! And to everybody, you all seem to be coming to the same conclusions |
rslsail |
posted 10-15-2009 05:35 PM ET (US)
WOW, that prop is over $500???? Hummm not sure if those 2 knots would be worth it |
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