Velocity questions
 

I just bought a 1995 velocity 26. I have been building a new engine for my last boat, but I sold it and bought this velocity. The engine is a blown 555 with a super chiller. I was hoping that someone out there has tried to fit such a engine package together in a velocity. Im trying to keep the boat as stock looking as possible, but don't want to hurt the performance of the new engine. Also the other question that I have is has anyone out there tried a imco 2" shorty on there velocity? pro's and con's thanks for your help.

Call the factory and talk to Steve. If it has been done he will likely know about it.

Check with Velocity Mike,he has a 280 with a big blower engine set up in it,and is bad ass.Check with him.:D

I have a 1993 26' with a 548ci with a 1071 littlefield blower on it. Runs in the low 100s. My X is 2" higher than stock it work on my boat, but didn't work on Mikes 280 or Velocity Mark boats. My doesn't have a windshield and its a kelver hull.

Mine also is a kevler hull and no windshield. How much power are you producing? and how stable is your boat going that fast.

velocity mike
 

How do I get in touch with Velocity Mike, 28 thoroughbred or Velocity Mark . Do you guys have super chillers on your boats? If you do how did you get it under your hatch? or did you have to cut things? I have talked with Steve Stepp he has been very helpful, but I wanted to get other people opinions. I want to get as much info as I possible can. This is the only velocity in Idaho and I want to make it work the very best it can. I hope that you can help me thanks for your help everybody.

i can name 5 or so in va that run big inch blower setups that i have built. mostly 24s but a couple 26s, the x-dim on all of the hulls were close enough that a shorty was not required.as for the chiller, if its a must have for you get ready to cut or build a new hatch, i have not had one fit under the stock hatch yet. as for handling at 100+mph, you must drive the boat and i don't mean just hold the wheel and push the throttle, my 24 is fairly stable to about 110, at 113 it starts to act a little strange, and full steering is a must, hope this helps

velocity kid
 

I have had a couple of different boats that once you hit a point there start acting funny. I realize that it takes a lot of driving to keep the boat up on the pad, I like to drive a boat Sitting there running a 100 drinking a beer sounds good, but I would rather be cranking on the wheel. Do you feel that the nockaducts will feed the engine with enough air flow? And do you think that I should just start out with my bravo before I buy a shorty.

The NACA Ducts will work fine as they successfully feed twin engine, blower motors on the larger Velocities. Definitely get a base-line handling and speed-wise with a standard length bravo before moving to the shorty. Also consider that the shorty will be harder on your already over-matched bravo drive! 28Tbred's positive experience is the first I've heard of on a single engine set up. Good luck and take your time working the boat up to speed.

I am about to pull the engine out in the next week. We are all done with the engine except for some minor things and dyno time. As far as the drive and the gimbal I am going to rebushing everything and have the drive checked out. I realize that I am not going to get a long time out of the drive, but I have it and might as well use it.

So every one out there doesn't run superchillers? I guess i'll try and make it work will keep you guys informed of how it goes.

I do not run a intercooler but Mikes 280 runs a Whipple intercooler its low profile. Its made into the intake and I beleive its only a 1" higher. I make upper 9s in HP. Call me if I can help 704-361-7893 Gary

Just saw your post we are easy to find. Good luck with your project it sounds like it will be nice. I also run a 1071 without an innercooler on a smaller motor than Garys. As for the NACA ducts I don't think that 2 are enough to feed 800+ HP, I bought a second set from Steve last year and just have not had a chance to install them yet. Also I have not given up on the Shortie yet just have not played with much because I only have one prop that I can run with it.

mark
 

I have 4 naca ducts in my boat two that feed directly into in carb and two that feed into the engine compartment. I also have two more that feed out of the hull.

I am going to pull my hatch apart this weekend and see what I can come up with. I feel that I can make this work without a big hood scope, maybe I can just cut out the foam and put a little raise in the vinyl. I can keep you guys informed on my project and i'll try and figure out how to put some pics. on here. One other question for you guys. The steering on my boat is a full hydraulic system, but it only has one ram. Do you fell this is enough with my setup?

2 naca ducts are sufficent, as for the drive i would definatly start with the standard lenght but i would plan on investing in a imco sc or at least a xr befor long. I put single rams on boats below 90mph and anything faster i always reccomend duel rams, i find it makes the boat a little better in the handling department when trimming

STolts, I already did what you did over the winter and just finished last week call me if you want. I have a 572 with a 10-71 superchiller intercooler on a 93 26 Velocity/Tbred Kevlar.
-Mike

we took garys boat with 2 naca ducts and i feltit was not geting enough air so he rigged away to run the boat with the hatch up 2 inches and the boat took off so NO 2 are not enough

I have all 4 facing to the read and a scoop. 1 to clear the sunpad and another to get enough air to feed it.
-Mike

Here are my nasty naca's

I bet a couple of blowers would fit under them there scoops. The big fellas you just got plus 1071's and methanol injection= 1300+hp per side and 140mph. That should "pucker yer ring".:cool-smiley-011:

Andy what are you drinking?

methanol marguaritas!!!!!

Andy's blood/urin test results:

The urine–ethanol concentration (UEC), the urine–methanol concentration (UMC) and the ratio of serotonin metabolites, 5-hydroxytryptophol (5HTOL) to 5-hydroxyindoleacetic acid (5HIAA), were determined in two successive voids from apprehended drunk drivers (n=35). The blood–ethanol concentration (BEC) ranged from 0–3.00 g/l (mean 1.87 g/l, median 2.03 g/l) compared with 0–3.96 g/l (mean 2.48 g/l, median 2.73 g/l) in the first urinary void and 0–3.56 g/l (mean 2.24 g/l, median 2.47 g/l) in the second void. The UEC decreased significantly from 2.48±0.99 g/l to 2.24±0.95 g/l (mean±S.D.) between first and second voids as did the UEC/BEC ratios, changing from 1.33±0.15 to 1.20±0.10. The BEC and UEC were highly correlated; r=0.97±0.04 (p<0.001) for the first void and r=0.98±0.03 (p<0.001) for the second void. The UMC increased from 7.51±4.95 mg/l to 8.01±5.04 mg/l between the first and second voids and the mean difference of 0.50±0.78 mg/l was statistically highly significant (p<0.001). The ratios of 5HTOL/5HIAA were 771±363 pmol/nmol and 728±377 pmol/nmol in first and second voids, respectively and the difference was not statistically significant (p>0.05). Finding raised concentrations of methanol and a high 5HTOL/5HIAA ratio in urine specimens provides additional evidence to confirm recent drinking. These biochemical markers might prove useful whenever the integrity of blood or urine specimens is questioned, for example, owing to contamination with extraneous ethanol during collection or microbial synthesis of ethanol in vitro after sampling.

Splain it as you may, still sounds like a pail full of piss to me. :D

Is the secrete out yet? Any numbers for us, how did the sea trials go? I won't tell. Promise:D

Went real well!!! :D This set of props may just be it, though I think a larger set lab finished by Brett @ BBlades may up the number even more. I'm going to keep the number under wraps for a few days to keep the guys on the TIBBC thread guessing. It is beyond the best I had felt was even possible. In all the time I have followed the Fountains here and other places I have never seen anyone claim the number I ran yesterday, that is on this hull with this power. GPS recall, pics, and even a video of it with Samantha standing behind me filming the tachs and speedo. This thing rocks and it is on a rail.

One thing I will tell you, Do Not buy props for your boat untill you talk to Brett @ BBlades!!! This guy knows his chit, and in my opinion is the best in the biz. This has been a little while comming, and I think may take another test or two to possibly get another couple out of it, but the results are Unfugginbelievable!!! :D

That's great news, I can't wait to here the final results. I'm assuming the 35 is handleing well or you wouldn't be trying to get a couple more out of her. I think I heard Samantha in this video:
http://www.youtube.com/watch?v=hyk9IZB2sb0

Andy here is a snack to go with the marguaritas.
http://www.youtube.com/watch?v=KlqoqLjMsAI

Naca ducts
 

Sorry guy's had to run down to La. to pick up another boat. I Really want to try to fit the supercharger and everything under the hatch and make it look totally stock. I got out ran the other weekend and I don't want anyone to know that I did an engine change. I love the fact that the boat looks like a sleeper. :evilb: If anyone has more info for me please call me. My phone number is (801)403-6789. PLease give me a call the more info the better. Thanks everybody for your help on my boat.

Mike How do I get intouch with you? I would really like to discuss my boat with you. Nick

This should cover it.......:D And rock solid, like a Caddy on the interstate, It's a Fountain man, what did you expect?

drives
 

Does anyone out there know where a 2" shorty is for sale?

SA Wheat!

Mike, Thanks for the call look foward to see your pics. I also will send some pics. of my boat. I think the hatch will turn out good, but if it chokes the new engine I will end up putting a scope on it cant hirt the performance to much.I forgot to ask what drive you are running.

Thanks guy, now to see if BBlades can come up with a lab recipe to up that number some more. :D

Hows your project comming along?

Still waiting on motors to arrive.

What would you estimate the speed of a 95 260 /Tbred with a 580 cu. in. /650 hp. Turning a 30 P labbed bravo? Guy says he's running 93mph. Seems high to me?
Also is 99 the year the 260 became 24ft.?

Works on paper.

Engine RPM 5710
Gear Ratio 1.5
Propeller Pitch 30
Propeller Slip 14%
Speed MPH 93