is 23 outlaw with MAG really a 70mph boat?
 

come to find out, yes! just got to take out a '06 with 375hp mag. I was hoping for mid 60's but hit 70 on the GPS during one run. Was in about 1-2ft of chop.

is this boat really supposed to be this fast? way faster than the previous 25's with HO's ive had. Can't imagine it with 425hp. it was already a white knuckle ride

cheers!

I'm close to calling BS. My boat runs 70 and I can walk away from my friends 23 like he's standing still. Low to mid 60s at best. What pitch prop are you running and what rpm.

College station?? come on out to travis today!! I'll be in devils cove....ok, sorry to hijack :coolcowboy:

I know of one running solid 69mph on GPS it's all in setup.

my buddy has a 232 islander with a 502 that runs 73+ on gps

What all did he do? Labbed prop, maybe some hull blueprinting?

Maybe,down river with a 5MPH current,

Lol, I should have known BS would have been called. I was wanting to call BS on my gps too. Thats why I posted, cause it made no sense.

Not sure what prop is on it. I can find out later today. Probably had about a 7-10mph tail wind on Conroe yesterday. Hit 68 going against it. Was just me and a buddy (400lbs total), and about 1/4 tank of gas.

Or behind the towtruck:lolhit:

Seriously. 70 does sound like alot for sure. As mentioned before, setup plays ahelluwa deal too. Could the boat have been ordered with a higer x, then blueprinted and a labbed prop? I know it normally isn't worth much on top, but the motor could have had ecu mod's done as well. Some are also looking into drive lube for lower loss.

My point is, that sometimes someone just nails that particular setup, that just works, and everybody else want:coolcowboy:

He has a labbed prop thats it. Was setup by Hawkeye Boat Sales

ya i am with you jeff! tell them to go up river and see what they can do then????:party-smiley-004:

I believe it!
 

Been to Baja dealers "Demo Day's" events where I have driven a 23ol, then jumped into the same model year 25ol with same power but was 5 mph slower on top end! The 23 hull has a couple reasons that add speed. First it has 2 1/2 sets of strakes per side, it is 23 deg. deadrise vs. 24 deg. and it is lighter with less wetted surface drag.

Very fun model to drive, but do not raise the "X" dim too high, because it gets a little unsafe for most. The attached photos are of the very first 23 Outlaw with a VERY high "x". I remember that if you held the steering (solid) in a full throttle straight run, it would start a chine walk that progressed to the point of barrel rolling if you did not break the pattern with the wheel, or chopping the throttle. It was fast, but we could not sell that setup to the general public. Dropping the "x" to normal levels was much safer, and it did not really lose that much on top end.

XT

I just ran across the videos we took down at Mercurys X-Site with that boat. I put well over 100 hrs on that boat myself! Love it.

I think you have an HO with the wrong engine cover. I've heard of it happening before. Check the serial numbers.

My brother had one andI got it to 70.9 GPS with a labbed 23 Mirage by BBlades. The thing was a bit of a handful at that speed though. It also had a weee bit more in it too...

3% slip?

GPS? Are you positive? It's always nice when one runs better than it should, but having been in a 23 Outlaw with a MAG motor and it only running 65 with just me and a 1/2 tank of juice I have to question 70 mph pretty hard.

Whipple stage two. Running a 23 m + . It will run 69 on GPS.

Well it could have been 8% with a 1.36 gear @ 4800 rpm's, But dosen't the 496MAG make the most power @ 4700 rpm's? And where is the rev limiter on a 496MAG?

And with a 1,5 gear @ 4800 rpm's -2%. There it is, that magical negative slip again.

Sorry but I call :bsflag: on that one. Maybe on the trailer.

Yep...I was shocked too. My 25 Outlaw with the Mag runs 65 GPS (just me and light fuel load) with a labbed Mirage Plus from BBlades and he use to blow me away.:eek: I wish I had some wideo of it but I don't.

His had very light fuel load, below a 1/4 tank. I'm not a heavy guy either..I weight 145lbs. With that kind of load the 23 started to chine walk at that speed. I couldn't hold 70mph. I basically hit the number and had to back out of it...as I said in the other post, it still had a weee bit more too..Believe me or not, just telling what I saw.:drink:

4950 Hitting the warning beeps on the rev limiter..

That boat weights 5000 lbs or close wet & ready.
http://go-fast.com/boat_speed_predictions.htm
http://go-fast.com/Prop_Slip_Calculator.htm

Enter in the correct values and see for yourself if this is BS or not.

Boat is 4200 dry. Said it was a light load. so I guess it was around 4600 when I ran it.. Can't get the calculators to work.

That "dry" weight is smallest engine package, no fuel, oil, bumpers, lines, people.
My 29 had a 6500 dry weight and weighs in at almost 8k loaded and ready.
Trust me, the boat is 5000 lbs with a driver and a big block and some gear.

5000 lb weight with a 375 motor = 62 mph.
4500 lbs + 375hp = 65 mph

Tried it again..
4612lbs for boat, Horsepower 372, constant 250, speed was 71.

That is what came up for me....and I believe I'm high on what the weight was.

Did I do it right...BTW, my 25 Outlaw is 4750 dry.. There is no way the 23 is heaver then mine...

Well something is wrong here...mine runs 65 GPS with me and a light fuel load.... I also have the 375 mag. So you are saying a 23 Outlaw at 5000lbs is a 62 mph boat?? That would put mine around a 57 to 58..lol.

Don't think so....

23 pitch + 1.5 gear + 4900RPM @ 70 mph = 1%
23 pitch + 1.5 gear + 4900RPM @ 65 mph = 8%

25 pitch + 1.5 gear + 4900 RPM @ 70 mph = 9%

We know it isn't a stock 23p wheel on there, assuming we've got the correct numbers for speed and RPM because there ain't a boat out there that runs 1% slip.

Where it gets even more interesting is when you add in the speed calculator numbers and the boat comes up with a 62 mph speed (theoretical) using a 5000 lb weight. Speed increases to 65 at 4500 lbs using 375hp.

Those numbers are believable. Back it up with the correct and true RPM numbers and GPS speed numbers you'll get the truth.

Using the numbers we were given for GPS speed and assuming almost hitting the rev limiter for RPM this dude's story isn't very realistic.

True dat.:lolhit: Most people don't weigh what I do (230) and that is my default number on the calculator spreadsheet I use.
So say it's 4250 and you're at 67 with 375 hp.

This is the test results from Boattest.com. for the 23OL

Test Results (Printer Friendly Page)
Test Power: 1 x 375-hp MerCruiser 496 MAG Range
RPM MPH Knots Total GPH MPG NMPG Stat. Mile NM KM KPH LPH KPL dBA
650 4.8 4.1 1.2 3.96 3.44 285 248 459 7.72 4.5 1.68 67
1000 6.2 5.4 2.3 2.76 2.40 198 173 319 9.98 8.7 1.17 69
1500 7.8 6.7 3.9 2.01 1.75 145 126 233 12.55 14.8 0.85 73
2000 8.5 7.4 7.0 1.22 1.06 88 77 142 13.68 26.5 0.52 78
2500 27.8 24.2 8.0 3.48 3.02 250 218 402 44.74 30.3 1.48 81
3000 35.0 30.4 10.7 3.328 2.85 236 205 380 56.33 40.5 1.42 83
3500 40.5 35.2 14.3 2.84 2.47 205 178 330 65.18 54.1 1.21 85
4000 51.1 44.4 20.2 2.53 2.20 182 158 293 82.24 76.5 1.08 86
4500 58.1 50.5 30.2 1.93 1.68 139 121 224 93.5 114.3 0.82 91
4800 62.4 54.2 32.0 1.95 1.70 141 122 227 100.42 121.1 0.83 93

The Performance 245 ran 62.5 with a 23" thru a 1.5 drive, and the 247 Islander ran 60.1. Both of these share hull with the 23OL.

I think so.

Close to what the BAM calculator said @ 5000 lbs. Case closed.

Whats my boat with 500efi's run?

Shouldn't you know that? You own it.:lolhit:

I was giving the benefit of doubt and basing my calculation on 1.5 gear@5K rpms.

ok what does everyone think a 98 272 with a fresh 500 efi will run and what prop should be best ??

Not as fast as you want it to and whatever Bret @ Bblades recommends. :drink:

If its you driving with a hangover on a Sunday morning, its around 34.5 GPS.

If its me driving thirsty on a beer run on Friday night, its around 82.6 GPS.

dont really think 82 is going to be even close but it better be well above the 34.5

i talked to brett and he said probably the stock 23p but it just seems like it would need more pitch but to be honest i dont have a clue

I'm curious to know how fast that calculator says it'll run. I call :bsflag: on the calculator as I know another 23OL running 69 on GPS