Speed and Power of your 29
 

What power do you have in your 27 and 29's? I would be interested in doing like a whipple on my boat; however, I want to see what hp it takes to get a similar boat to "x" speed. Right now the best I can get out of my 29 with a rebuilt 500 EFI is 72 on GPS (approx 470HP)

29 fever I have twin 502"s just stock nothin fancy on average 75 mph with everything right I have seen 79 mph Im spinning 28 hydros that are labbed

Exactly the kind of info I was hoping for. Thanks for the post

You may need blower pistons. With My blower. I jump right on plane w a 28 pitch bravo.. I run mid seventies but need to tune some to get the right top end. Just been spending time in the boat with the lady and been on controlled speed lakes. Water skiin' and stuff. You can add 3 MPH for the 29 vrs. the 27.. And another 3 if you have the step bottom with the higher x dimention.

I may see 80 by the time i'm done. the best Ive seen is 77 gps w the wind and chop at my back on elsinore.I have a 27 with no step. But . I have a new tow vehicle.:D

27 Fever -93, carbed HP500, bravo 1 1,5 ratio, propshaft 4,5" below bottom, 14,5X24 Mach 4 blade.

71mph 5300rpm light load.

I have a 03 29 w/ 525 and a 27 hydro non labbed and I run 80 at 5400.

I have a 2000 29' with carbed 500hp running right at 73mph gps with a 24" pitch bravo one. I have a labbed hydromotive that gets me up around 75, but I lose my all around performance. I also have an XR drive with 1.5 gears,and dual water pick-up. I have been told the DWP might be a little slower but not much. I used to have a 1999 27' with a Tyler Crockett 502 putting out 575hp. That boat ran close to 80mph at 5200 rpms with a 27 pitch mach sterndriver, and 1.5 gears.

You and I are pretty close as to how our 29's are running. I am having my 24P Hydromotive tuned right now so I can get some more RPM, then I think I will be close to 75ish.

I used to have a 93 27'. Radared in the Shootout a couple of times at 80. I had a 572 NA bowtie Chevy block. Running a 28 labbed Hydromotive.

'97 27 Fever - 509" w/ M1 Procharger and labbed 28 Bravo 1 - 77mph @ 5200. Been way hot down here this year and that's as tight as I can spin it. With some cooler weather and a bit more tuning I hope to touch 80

I used to have a 2000 29 Fever with a HP500 carb. Prop was labbed and timing advanced and on a light load light chop on the water I could hit 74. Norm was more like 72.7-73.

I sold it back in late 2003 and they guy that bought it put a blower motor in it and I thin was hitting upwards of 90mph.

I had a 98 27 w/ carb. 500 H.P. It ran 73 on its best day. You have a blown 509, and are running 77. Something does'nt sound right. Running your numbers you are at almost 18% slip. Thats pretty high. Heat will effect H.P., but your slip will only get worse as your hp goes up. Is your prop ok. Who did the lab work.

Is anybody running a 5 blade on their single 27 or 29? If so, how do you like the handling and what not?

05 29 w/575csi, 5 blade Hering 27p 84 gps

FeverMike
 

Hey FeverMike I have your old boat, no longer a blower motor in it back to carbed 500. That boat must be bad luck for its owners and their legs. I slipped coming off the engine hatch to the rear seat, and ended up hitting the floor straight legged. I ended up shattering the top of my tibia. Two surgeries later, I am sitting in my living room staring out the window at the beautiful weather. I'm just thankful for good pain meds. My wife kept telling me I used to much vinyl conditioner on the interior, but I have to keep it like new. The boat still looks, and runs like new, just can't use it for a few more weeks.

Hey bleek, always good to know where my 29 Fountain is. I LOVED that boat, took unbelievable care of it. It is a solid built boat. I bought it new November 3 1999 at Intercoastal Marine in Sarasota.

Post of some pics of my old baby!

Prop is brand new from bblades. The rpm/mph I listed might be off a bit, but not much. I think the prop is closer to 26.5-27

05 29 w/575 82gps

03 with a 525.........."stock" :party-smiley-004:

79.5 mph turning a 30" Hydro QIV...............but on 7 cylinders:eek: (broken piston) Fixed and sold after the cool weather had come and gone. Engine guy was thinking she could run 86 on his setup and based on how she did with only 7 cylinders, I have to agree. But she's gone now. :(

Before the mods, she ran 77.6 on a 26" B1. And that was on a summer's day, loaded down. It was saw 81 in March of 06.

Whipple
 

Anyone ever seen a 525 with a Whipple? What top speed would that produce?

low 90's?

Thats pretty much what Mercury Racing calls a 600SCi or 700SCI (depending mostly on boost). The 2006-2007 29's with 600SCi's ran 82-84 mph on gps. Most had 30P Bravo props leaving the factory. I don't think they sold one with a 700 because of the transmission changing the cg of the boat too much, from what I remember. :party-smiley-004:

Well if you want to Whipple a 525, I can point you in the right direction. About 850hp on pump gas is what he's getting. That would put that boat well into the 90's. That would be fun but expensive to convert and maintain. $$$$$$$$$$$$$$$

I would think 850hp on pump gas would be Ballanced rotating assemblsy w better rods, JE style blower pistons and Roller cam set up w about 700 lift if my calculations are correct.

A stock 502 or 510 would make more like 575 HP with a whipple. I think a 600 or 700 mercruiser would again have better internals.

In my humble opinion.

I think he is thinking of bolting something on. He has alrerady had the motor done.

Racerngr1

I'm still thinking you should be able to make 80 with the right supercharger set up. You will have to change the prop too.

-Chad

there was one at texoma labor day w/ quad whipple said it dynoed 1400hp was fast.

03 29 Fever with twin 377 Scorpions and 1,65:1 gears, 32p Bravo 4-blades with extra cupping turning in and give a max speed of 82 on GPS. I get 5400 rpms with these props. And the same with 30" props, but get only 79...

Seems like a single 525 EFI givesthe best speed andreliability for the money...? Fun to dock the twin configuration though...

Yes, 29 fountain must be one of the kind of boats that you fell in love with.... I LOVE mine and has 400 houres on it since 2006 even the boat is a 2004 MY. Has ayone seen a 29 with twin 377 Scorpions before? Am I the only one who have that?

WHY is the 29 3 mph faster than the 27???????????????

I just bought 98 29 with 577 bulldog, 634 hp runs 72 or73 28 labbed left hand. Get this with a 2 inch spacer in the drive. Order new studs to put the drive were it should be. I will let everyone know. Riggs marine built the engine said if I take the 2 inch spacer out, the top two hole in the water pickup will suck air. Anyone heard of such a thing

Never heard of puting a 2 inch spacer in to prevent it. They used to come from Fountain the top 2 holes with allen head set screws threaded in to prevent it.

The 525 is already a complete roller setup. (secret to its power) The same guy who got 620+hp from my 525 has been doing up these Whippled versions. Not sure if he's changed pistons or not. It's already a lower compression motor since it runs on 87. The next time I get to hang around him, I'll ask. I do know he's got a plan to get over 1200hp on race gas later on down the road. He had to convert them to open cooling in the process. Here's a pic of an early incarnation from the "evil genius".

When I was in the market for mine, I was eyeballing a twin scorpion machine that was in Jax, Fl, but I wanted the single because of the weight difference as the singles fly perfectly level in bigger water. Anything with Scorpions is few and far between. (rare)

The 29's are faster because they are a different hull than the 27's. A much bigger step on the 29's picked its bow up out of the water then the "pseudo" step that was on the 27. Hence 3 mph more from a hull weighing more.

I have run Outboards real high in the past. They have the same 4 holes on each side on the lower unit.

I plugged the top hole on each side with bondo..yes bondo!.. And the water pressure increased. from about 21 to 29 psi.
I also carved a vayne from each hole to a lower point on the front of thew lower unit.I don't think the vanes are essential though.

Keep an Eye on the water pressure. If it jumps around a lot or goes low just plug the top hole w bondo.Then spray can it black. It works!

-Chad

UNSANE: I checked my Performance Report now, and it says Dealer: Port Jacksonville........... The boat is hvite with blue hullsides and "Victory in motion" graphics. If it is the same boat (which I think), can you give some info on it? Who ordered it, to stock or to a spesific customer? I bought the boat from a friend of mine who worked at the Nor-Tech factory. I think he had bought it from a company that sells different things for companies that go bankrupt etc. What happened to it? Do you have any pictures??

That would be the boat, but this was over 2 years ago. It was listed on boattrader then, but I have no info on it. Sorry...

I will keep A eye on my water pressure gaugemay need blug the top holes, put the real question is how much speed on the top end I will Gain when I take the 2 inch spacer out. ANY Guess....

Thanks for posting this question. Last year ( my 2nd year boating) a guy asked if I was running 75-77 mph with my single 502 27'. I thought it sounded like high expectations for a bone stock 502.

Other than the bumpstick, it still is stock. Just refreshed after the blow up last year. I've seen 68 on the gps. 24p 4-blade mirage plus. 5100 rpm.

2004 29' with HP525, XR & 26" Bravo lefty.
80 mph.

Nice speed! But one question I have not found the answer to yet, iswhy Fountain has equipped some of their single engine sport boats with lefthand rotation??????

As far as I know, the early boats had the weight of the driver to starboard, thus turning the propeller clockwise to combat the torque/weight of the driver.... Driver is still on the starboard side and Fountain turn the propeller to the left? That would strengthen the force to the starboard.... Also the engine turns clokwise seen from the stern, that enable the boat to lean more to port side.

Hmmm, what is "the trick" here.....

Okay, t prptorque to the starboard combat the engine torque to the left??????????????????

Sometimes boats lean over to the side a little at WOT. Mine does not so still run the RH.

My thinking is, is it cost effective (worth it) to bolt on a whipple? I don't want to spend $5,000 and gain 1 or 2 mph. From the looks of things here I can bolt a whipple on my fresh engine, bring that engine to a conservative 700ish RPM which would put me in the mid-high 80 range which is where I would LOVE to REALISTICALLY be. I'd imagine the hull could handle 100mph, but is it worth it to spend the money to get a 2000 29 Fountain to the 100mph mark, not for me. Thanks for the advise everybody!