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Author Topic:   FASTEST 15' CLASSIC
Scanner Boat posted 11-08-2001 09:22 PM ET (US)   Profile for Scanner Boat   Send Email to Scanner Boat  
What is the fastest 15 classic you have or have seen and with what setup?, hp, prop, lift etc... Mine looks sturdy enough to put a 2.5EFI on and be Wickedly fast but I don't have that kind of budget for an experiment.
Scanner Boat
Peter posted 11-08-2001 10:25 PM ET (US)     Profile for Peter  Send Email to Peter     
I've been on a 15 sport with a modified 70 Evinrude and that was more than enough power for the 15. While this was a long time ago, my estimate is that it did close to 50 WOT.
KeysNole posted 11-09-2001 01:14 AM ET (US)     Profile for KeysNole  Send Email to KeysNole     
At boattraderonline there was a 15 with a 115. That thing must scream. It must have sold, because the ad was there yesterday but not today.
Scanner Boat posted 11-09-2001 10:36 PM ET (US)     Profile for Scanner Boat  Send Email to Scanner Boat     
How was the 70 modified? What do you estimate the final HP to be? The boat definately craves more than the 50 can push.
EasyE posted 11-09-2001 11:27 PM ET (US)     Profile for EasyE  Send Email to EasyE     
All you gotta do is put a 90hp yamaha or nissan or whoever else makes 3cyl 90's and hangon. A 3cyl 90 is only like 20 more pounds than a 3cyl 70 it should give you 55+mph then you'll have good engine weight,good power and great speed.-EasyE

Oh and i heard most teleflex steering systems or mechanical systems isn't safe above 50mph. You might have to go with a hydralic system with the 3cyl and you WILL need it with a V4(4cyl) application.

JBCornwell posted 11-09-2001 11:57 PM ET (US)     Profile for JBCornwell  Send Email to JBCornwell     
I had one pass me when I was doing about 75. It had a Suzi DF50 and was on a Shoreline trailer behing an Explorer. Had to be doing 85. Site was I95 in Broward Cty, FL. October, 2001.

Red sky at night. . .
JB :)

Flipper posted 11-10-2001 12:55 AM ET (US)     Profile for Flipper  Send Email to Flipper     
Easy E, you are right! My 15 has a jackplated
2000 3cyl.90 Merc with hydraulic steering, turning a 26" pitch Laser 2, and it does 55 mph with two adults. I finally G.P.S.'d it
a month ago. The hydraulics are a must with the torque-steer of the 26" prop, especially with the engine trimmed down! I had a bad "power-turn" incident occur when I still had the old steering - it was choppy water, my hand left the wheel for an instant, and that was it! Luckily I was only cruising, but even so, the boat made a hard right turn and then dug in HARD before I could even blink.

With the hydraulics, the classic 15 is as smooth as silk at 55 m.p.h. It could reach higher speeds with a chopper and higher jack-settings, but I think the bottom of the vee is too round to the aft of the hull and the prop could "paddlewheel" (usually causes a hairy '180', something I've only read about and I'd like to keep it that way).Better to stick with the thru-hub stainless- the hole shot's nice, and besides, it is a Whaler, not a HydroStream.Better to be safe! Ooo, did I say that?

EasyE posted 11-10-2001 11:19 PM ET (US)     Profile for EasyE  Send Email to EasyE     
Sounds like a pretty sweet boat you got there flipper. You got any pics? Im sure you can get her closer to 60mph with the right prop and jackplate setting, but that only becomes nessesary when you meet your match. Another 15'whaler running a 90hp anything, drag race from that buoy to that buoy and make yourself an easy $500 dollars. Now wouldn't that be sweet.-EasyE
Flipper posted 11-11-2001 01:18 AM ET (US)     Profile for Flipper  Send Email to Flipper     
Easy E, I'll send the pic's as soon as I get them. As of August I finished converting
what was a Striper to a Sport, so I held off on taking shots 'till all the mahogany was in place!

Is that $500 U.S. buoy to buoy? That'd pay for the new chopper.Good plan.

Scanner Boat posted 11-13-2001 10:11 AM ET (US)     Profile for Scanner Boat  Send Email to Scanner Boat     
YOU DA MAN FLIPPER!! cool setup All I have is a 4cyl 50 and troll along at about 36. I cannot get any holding power from the lame alum or plastic props that I have after I raised the engine. I will probably try a stainless if I can find one for this motor. Does your boat still self bail when you remove the plug? If you post photos let me know. Thanks, Scanner Boat.
Bigshot posted 11-13-2001 10:19 AM ET (US)     Profile for Bigshot  Send Email to Bigshot     
was on a 1978 15' in Barbados with a 97 Evinrude 115 Oceanpro. We were iin 2' chop so anything over 4000 rpms was too fast (about 40-45) I estimate mid 50's. Without a pad it would just chinewalk or roll to a side any faster than that. My 16' Checkmate weighed 720lbs(170lbs more than a 15) with a 115 Merc and designed for speed. She would do mid 50's with 1 person. Can't see getting a 15' any faster, actually doubt it.
where2 posted 11-13-2001 12:21 PM ET (US)     Profile for where2  Send Email to where2     
Considering the feeling of the chine walking on my 15' Sport at 47-50mph, I can't imagine 90Hp opened up. Granted, the extra 20Hp (I have a 70Hp) would come in handy picking up slalom skiers and screaming them around the lake. :)
Flipper posted 11-14-2001 10:32 PM ET (US)     Profile for Flipper  Send Email to Flipper     
Scanner Boat: No, she doesn't self-bail too well with the static trim being that much further aft, due to the jackplate (6" setback). I mounted a bilge pump on an 8 guage piece of stainless and tucked it down in the bilge well. This is for backing out of my slip in choppy water!

Love the 50 4cyl. A friend had one on her 15 and it never died. She had it almost 20 years 'till she traded it in on a Mariner 60, which lasted four years.

Scanner Boat posted 11-15-2001 09:27 AM ET (US)     Profile for Scanner Boat  Send Email to Scanner Boat     
Flipper, I also really like the 4cyl 50 and on the 15 it works well overall especially because I let others use the boat who are not as experienced, It makes a really safe and easy to operate package. If I only used the boat myself I would definately go for the bigger power. It must be a real blast to be able to pass all of the cobalts and searays on any given day. We have to get more photos of 15' classics on the site. Did you try a dual cable system before going to the hydraulic system? The Scanner Boat.
Flipper posted 11-15-2001 10:38 PM ET (US)     Profile for Flipper  Send Email to Flipper     
Scanner,I went straight to the hydraulics after trying out the old single cable from the previous motor. The dual cable would have been another option, I just like the flexibility of the hydraulic lines for rigging, aswell as the "zero slop" feel of the system. I find the cable systems loosen up over time; especially when they're not greased enough -*GUILTY*!

I am the only driver, but I have been a passenger with the odd 'trusted' friend at the helm, and I must say I hate it. It's a different ride, and I have control issues!It is a blast walking by my bro. in law's repowered 21' Formula! He could probably get 60 out of 'er if he set it up with exhaust, prop, etc. but I don't give him the encouragenent! Do you have some pics? - F

whaler1585 posted 11-26-2001 09:28 PM ET (US)     Profile for whaler1585  Send Email to whaler1585     
has anyone pondered putting a 120 cube v-4 johnrude on a 15' sport? its almost as heavy as a 150/175, but it wont deliver such a hard hitting top end. It sure would look cool. that hull seems to have a lot of natural lift, so slight to no setback would be in order. running the tip of the cone with the pad, dual cable steering and a footthrottle.this could work. comming off plane without swamping her would require nothing more than a delicate touch. talk about holeshot! solid mounts and a chopper to reduce lift. interesting. ill send pics to this board when i get this underway in April. hey anyone could buy a hydrostream and whipe this little boat out, but it would be hilarious to have a 120 cube on the back!


bubba18 posted 11-28-2001 02:19 PM ET (US)     Profile for bubba18  Send Email to bubba18     
You guys must be driving early in the morning to go 55 in the 15 because even though the boat is capable my back can't take the pounding. That's the problem with the 15, noway to stand and let your legs take the shock. At least that's what I've found in the great lakes.
Flipper posted 11-28-2001 06:05 PM ET (US)     Profile for Flipper  Send Email to Flipper     
Bubba18, you're right, it's pretty bone-jarring in the heavy chop, but where I am (the ST. Lawrence) it's not too bad. On weekends,though, I leave early for my intended destination!
where2 posted 12-06-2001 12:53 PM ET (US)     Profile for where2  Send Email to where2     
I will admit that the 47-50mph runs were on a glassy freshwater lake in town. I usually don't run much above 35mph while running around the un-sheltered portions of the ICW. With the ever increasing manatee areas, most of my local ICW that is sheltered also has a posted 25-30MPH speed limit.

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