Fastest Advantage Boat !!!!
 

Who has the fastest Advantage boat? Have been told the 28' Victory Mcob was a wide boat at the waterline,and heavy for that size boat(fat & heavy).What do ya got?:evilb:

32 Victory closed bow, twin 496HOs. Fat beotch can still get outta the water! She runs out fair, but she ain't no screamer! More like a moaner!

Got my 28 up to 90mph one day going down a big hill in Missouri behind my Chevy. Best it can do on its own is 70.

My 28 Sportcat, stock 502's, Stock 1.5 bravo 1's turning a set of 27 Hydromotives right out of the box, Best ever of 93.7 across Lake Pepin here in MN.
Fastest 32 I knew of was one with 500's and whipples, @ 106 and ran out of lake.
Second 28 Twin cat the Dr's owned back in 1999 heard they pushed high 130's
Fastest 34 I ever heard of was 96
Fastest Banshee was 115.4 gps and ran out of lake as well.

Thats bad ass MnFastBoat!! Benn looking at the sportcats a little. Im still loving the v hull 28, just tryin to figure out the HP i need. I guess its a never ending huh! Hey Snapmorgan, thats a 575 hp in that 28 right? Im looking at puttin in bout 650-700 hp to see what the pig will do!

Should run around 80 with 700hp. Raylar or Wipple can get you there with your 496.

My 34 ran 106.2 on the computer. 108 GPS with twin 1000's. My 28 ran 88 with 871 540 SCI. 28 MCOB will run a lot better with a higher X and ITS.

What did you think about the -2 on your boat snapmorgan? Noticed you have it for sale. Did it not work as good as you thought? were you able to go up a prop size? Advantage 575,you are the man so far!!! Really beating myself up over putting forged internals in the 496HO with a whipple vs a big ci efi drop in & selling the 496HO. Its for sale on swap shop so I guess that will help me decide??? I think i pissed Raylar off on a post, I totally respect his opinion and his knowlage of the 496 engines and didnt mean to disrespect him, just quoted what he had sent me on an email.

ditch the 496 if you can get the $$ for it. You can build a sci with descent reliable HP for less. Hell i have a 575 sci sitting on a stand for 10K. although it needs some accessories and headers. That will out run the 496 all day long

The -2 worked great on the 27 that I bought it for. I have not tried it on the 28. I am having prop slip/ cavitation issues on the 28 and I think the -2 lower will probably make it worse.

575 what do you think about my 28MCOB. I am running about 20% slip with a 26B1 and can hear it caviating i think. It just doesn't hook up well. Doesn't respond well to trim, just wants to slip more. I think I am going to try a 5 blade , but don't know what pitch to try. I am just touching the rev limiter right now ith the 26 4 blade.

We have a 22 ft Advantage Citation (24 ft with swim platform) that GPS'd at 88 with a Whippled 502.

Snap, keep in mind the original design and intent for the 28. Developed for space accommodation, storage and all out family fun. Never intended to go very fast because of the very wide bean and flat hull (23 degrees). Thats quite a bit of surface running in the water, plus the weight. But you can make them run. First you need to get the prop away from the transom. Thanks to the speed killing last step which the drain plug is in. That step has some hook built in to stabilize the boat. Also a good reason the 28 doesn't really need tabs. To make her run, get the prop away from the transom, to good clean water with a box or ITS. Thats why your smoking your four blade, to much air. raise the X. 28 is deep from Advantage. Then your on cue,with the five blade. Run a 26 labbed five blade. Labbed why? You need to trim the diffuser ring because the 5-blade is going to lift the transom to much. You'll plow the bow and run slower than you should if you don't.

Thats smokin. Fun ride those 22's are

That is fast in a 22!!! Great advice adv 575!!! Im sure a lot of us 28 owners were looking for some of that insight! I will get my fat slow hull into the big #, cause i love the way the boat rides/handles.We'll see.$$$$$$$$$

Hey Snap, my 28 only cavitates if I dont trim up after on plane. Although I dont have the hp you do , it seems kind of strange. Once on plane(which is pretty fast with the hp I have) all I have to do is trim up & she grabs a bite. It will be interesting to see what happens on your boat if you do some of the things Adv 575 recomended.

Thanks 575, just sold my shorty lower yesterday. will try the 5 blade and see how it works.

Randy scism won the 1st loto shootout in a 27@ 101 mph

Snap did you put a water pick-up on the transom or are you using your out drive feed? I've seen a lot of people put a pick-up on the transom in front of the path of the prop. This causes turbulence and air as the water hits the prop area. Cavitation results.

Feeding it through drive. It does however have a drive shower pickup installed through the cavitation plate. I have thought about removing it to see if it may be causing a little of it. Also, I am running LH rotation and the shower pickup is on the left (port) side of drive. It was set up at the factory this way, but it seems backwards to me.

Ever try running a RH prop? Drive shower should only stick through just a bit. I was always told to install them on the drive on the up swing of prop. Never had on on the down side. Could be on to something. What's your current X? 28's are typically pretty deep.

I removed the drive shower and tried another 26LH B1 that I had. No more cavitation issues. Hooked up good, couln't bow it out or make it slip. Still a little under propped though. Just touching rev limiter at 71MPH.

Thats cool Snapmorgan! Making headway! Im hoping to see low 70's with my new motor! Hey Adv 575, I was looking at an Imco extension box with 3" lift. I measured my x today, bout 6 1/2 " at trim height, ie trim when running. Would this extension box hurt or help??? Would my B1x bolt up? You seem to have the answers to make 28's go fast, looking to tap your knowlage!!

3" raised box, you are going to have to raise the engine. Use standard IMCO box and go with a -3 IMCO SC lower. That will put you on the money. 6 1/2 X is crazy low. Check X with drive at neutral trim. Neutral trim is prop shaft parallel to the bottom of boat. use a yard stick or some type of straight edge. I don't like raising the engine on a 28'. Hull is plenty deep for a nice blower motor. I have a 575 SCI stock in mine. What prop are you using?

Im running a labbed 24p bravo now. Saw 56 max on gps at 6000' with the 496ho last week. Sold it and picking up a 600+ hp 557 efi motor next week. Sure I will have to prop up at lower elevation but could only turn it 4400 at 6. Just wanting to start gathering parts for future outdrive upgrades. You think a sc lower will hold up for a while on that b1x with no hard hole shots? Was thinking like you said, ext box & lower to start with, maybe some steering soon, then the scx upper later.

Thor your elevation defiantly plays against your speed quests. Example, my 575 SCI with inner cooler which is approximately 650 HP, I use a 28 4-blade labbed a bit. SC will hold up if your're smart on the hole shot. I do run SCX's on my 34. But my 28' I have a XR with the 4- blade. With your elevation, consider a blower. Elevation makes a blower even more sensible. IMO stay clear of 5-blade props on 28. The already have natural stern lift. Your're on target with the box. Raise the drive and move the prop back. She'll slip a little down low but will fly on the top.
Also, HYD steering is a must first improvement. Period!!

Top speed
 

27 victory 454 mag with procharger 5psi boost runs 74 mph in chop !!

Wow, I'd have thought with the HP you guys are running, your boats would be faster. I have always thought my 32 Victory was a fat beotch, but with just a couple 496HOs, I have GPSd 81. I do know the triple steps like a little more chop though. Nowhere near the fastest, but respectable with stock power I think.

32 Victory in IMO has the best hull for speed. Even it needs some healthy power to get it to 100 MPH. My 34 has a good hull, but it's quite tall compared to a 32'

My 27 was set up exactly the same. I have a -2 shorty and its still right around 4-4.5" below the keel. The -2 helped pick up a few mph. Advantage sets up their boats for 496s so itll get on plane easy and pull skiiers and tubers at slow speeds, not for us guys trying to go fast.

I would like to do a -3 someday and a box, but then it wouldn't fit in my garage haha. Keep us updated with your project!

Well, Fired up the new motor today,.....Opps, I jizzed in my pants!! Sounds great, every thing is working good, will go out for a water test on Sat. Suposed to get up to 54 deg. I think I,m going to need to buy antifreeze by the 55 gal drum!!! We'll see how she runs, save up some$$$, Going to go with the box, -2, Hydro steering all at once, come spring.

that will wake that bad boy up. Which box are you going with?

I talked with Scott at Advantage last week and he definitely recommended the shorty but said from their experimenting, they didn't pick up any mph with a box. So, I am looking for a -3 now ad hydro steering. I did get 67 mph at Havasu with a labbed 26p. Think I had enough power to run a 28. 70... here we come!

Just get ya a 32 Victory with twin big blocks. Even with Mags, I could hit 74. The HOs really opened it up too. Does your 28 have steps?

I didn't know that Advantage did any experimenting with extension boxes. I think the main reason for the extension box is actually to help handling. In the low 70s, I'm not sure you would notice. Many fast single Vs run the extension box to improve handling when they start going 90+. Looking forward to seeing your results with the -3!
-Tom

Tror, what do you have for air into the engine?
Not for sure, and not saying anything bad, but Advantage has always lacked air into the bilge!
I really changed my performance when I added the scoops. Not saying that is the way for you to go.
Just saying when I first brought mine home I had a hard time with numbers, after many tests and runs I cracked the hatch just a touch and gained over 300rpm! Really could tell the response @ wot.
The following spring I had the hatch scoops done @ Advantage.

Next time out, just bump the hatch open an inch or so. BECAREFUL! not to go too much and have a blow off!!!!!!

Couple of things: 28 has plenty of air it's a single engine with a very large bilge area. It has fresh air at each beam plus air vents and Pockets when the hatch is closed. Let's close the air issue. My 28 ran a summer with a 1200 hp plant. It takes a huge amount of power to sled a 23 dead rise boat through water. Thor is correct, boxes will gain u a bit of speed because you create more overall bow lift with less hull in the water. But more importantly, the boxes will stabilize that Victory at 80. Have you had that so called flat bottom to 80. 23 degrees is pretty flat. 80 is a handfull at 80. Yes guys will boast I blasted mine to oblivion, but hit a roller at 80 in a 28! After cleaning up the mess from a bowl loss, you'll thank the lake god for not calling your number. Put the boxes on, raise the drive and hand on. 32 & 34 are twin engines. Totally different beast to a fairly light 28. And a moon diff from a cat. Steering and boxes! Or enjoy the fun 28 and crank it up with a 32 or 34.

Sorry I meant Tomorrow 44 on the boxes. Stability and speed you'll have a fast fun day on the water. Speed and no stability, you'll wish your drive broke.

You were running 1200 hp in a 28 Victory? I'd love to hear more about your set up. What drive, x-dim, prop, speed, etc? PM me if you want.
Thanks.

Merlin block. 555cu
335 CNC. 117 cc. 8.5-1 CR
Crowed billet rods. Callie's blower crank
JE pistons
Blower shop 10-71
Whipple MOAC IC
Dry sump. Canton pan
CMI big tops
Mercury ITS
Imco SCX. 34 5-blade
Cam Motion cam .670-.670 250-260 dur
T&D shafts.
1170 HP 12 PSI 960 TQ. 6300 RPM 110 gas
1001 HP 9 PSI 910 TQ. 5900 RPM 93 gas
MSD EFI ingenious software. 80 lb injectors
Twin FAST air only tb's

Sounds like a beast! That must have run over 100 right?