Yes that is the boat and it does not have that 540 in it like the add says. Its a old add it has been a while since they have updated their site.

hey I was told I was bs last time out for me 5800 to 6000rpm 83.2 gps in my ol thats about 12% slip with a 26 b1 that was balanced boat 4000lbs 70gals gas hit the rev. 1.50 gears. 670hp hope that helps. this spring 1050hp 572:pblown. any C Ms in mass cape area ,plymouth, fallriver we are trying to get local guys to do pokerruns or day and overnight trips to the islands for 09 well theres some nice speeds that you guys are getting thats good I would of bought a Cm but my friends family bought a baja dealership instead of a C M whats funny he still has a 17ft one AND iHAD A 14ft way back. artie

full hydraulic steering or learn to countersteer real fast thats what I did while running in the 80s, I had add on steering now full.:p

I have full hydraulic steering to the helm.

1999 283 Convicer, 565" Imco stand off box, 27" labbed prop, all the junk out of the front, light on fuel, very light. 87.7mph GPS, with 5 bad cam lobes. One pass, didnt see the tach or have the datalogger running. Found myself in shallow water and had to back out of it. I suspect I was at 6300rpm, but dont know.
Was going to do some backup runs the next weekend and found the damaged lifters and cam lobes.

Thats hard to belive with 5 bad cam lobes. That engine must have 1000 hp do do that with 5 bad lobes. I don't even see how you could keep it running with all that spitting and poping from 5 bad cam lobes. :eek:

There are different stages of bad. You are right, a very worn cam lobe will make an engine pop and run bad. A mildly worn lobe will just cause you to loose a few thousands of lift and duration. I had the same issue myself , only 2 of mine were worn down a bit. I should have realized it , when I went to adjust the valves and found 2 that were .005" loose.

Looking at the data logs I find that I am using about 395 lbs of fuel per hour at WOT. Depending on BSHP that figures out at about 700+hp. And a couple of the lobes were worn by .015" over the nose, if I remember correctly. No poping or spitting.. ran nice. Just some rattling noise at idle.. :(
I just wish I had not run over a stinkin weed bed that I didnt know was there. The lake was full of blow boats at the time. I should have realized why they were not in that area. I had only bumped the trim one time.. I really think it would have gone faster... but nobody was with me. Just the GPS tell tale, so I can prove nothing!! Just my word and the GPS that it did..

ok not as big as u guys a little toy i got at a good price.......89, 20' with a evinrude 200...i know dont bust me to hard....full tank of fuel (30 gals) 4 people each at approx 150-170 no jack plate or anything with a 22pitch 3 blade raker i hit 60 on lake george in middle of october...any ideas on how i can get more speed with out slapping a jack plate on the back?

My Old Checkmate
 

Use to have a 1996 Convincor 242 with a blown 540. Fastest it ever ran was at a radar run in Richmond, VA in 2002. With 15lbs of boost and 150hp NOS kit it ran 110.3 mph. Pics below is of the motor after it came out of the 242 and went into my cat. Sold the boat to some dude from OH in 2003. Bow-tie block, 9:1 JEs, custom Crane cam, AFR heads, Crower SS roller rockers, Whipple Inner-cooler, TBS 10-71, Nickerson carbs, and a whole lotta KE parts...

:eek: Wow, that's brutal. How did that hull handle at 110mph???

I want to see pics of the 242 that went 110 please please just 1 pick of the boat Checkmates are my dream boat:evilb:

Believe it or not it was fairly stable. As stable goes for a 24ft boat at 110mph. The key was having full hydraulic steering and the delta pad bottom design. Once the boat rocked back on the pad it more or less just sat there. I know you won't believe it, but very little chine walk. The 242 Convincor is an awesome boat! Pic below was with first generation motor. The original 454 with a 177 blower. When I dropped the 540 I had to scoop the sunpad.

C112_ that is some awsome #s in a 24' Mate! Do you have any videos or pix?

What does your board name mean? A plane?

I have a few other pics, but they have to be scanned. Owned the 242 before I got into digital pics. As for the name, after the Checkmate I owned a 28 Commander Cat that ran 112mph with same motor (though de-tuned with only 8lbs of boost, no NOS and pump gas). So I changed board name to Commander112.

my 89 251, no galley, with a 489, 177 blower @ 6-7 psi and a 26 bravo 1 ran 80.4, but did not have hyd steering(yes I know) only tested a few times, handling became a experiance to say the least ! and pulled the blower set-up for a n/a 509 which I put in end of the season...

http://i227.photobucket.com/albums/d...r/100_3409.jpg

Has anyone seen performance numbers for a 28' Convincor with twin HP500's?

vinny what rpm are you getting wfo with the px5 and do you have a top speed with a b1 prop thanks, just bought two new props for my new motor b132/p5x30 I think the b1 would be faster but I could be wrong my wfo tach will be 6400 red line. thanks for any info like if you ran a 26 or 28b1 thanks again art ps I heard the px5 handles better than b1 too?

I can spin that 25" P5X to 6100 rpm. That equates to about 12% slip @ 85 mph. Impressive considering I am running a -2 shorty. A long time ago, I ran a 26" B1 . At the time, I had a standard length Imco lower. I dont remember what rpm or speed I got out of that prop, but I do remember pulling the stick back because the engine was revving higher than I wanted. At this point, I dont know how or if my set up would run with a B1. All I know is that the P5X seems right for now. I can pull up on plane easily, turns great, jumps waves, what more can I ask for?

cool yes I have a 2''shortie ,I just have to move the bulkhead so the blower fits and make a new back seat up and have the rest of the steering to go full hyd :ernaehrung004: cut down on chine walk:evilb: so I HOPE TO HAVE THE 572 IN BY MAY JUNE. Art

New top speed for my 21' Pulsare long deck/Merc 225Xri. Ran the Lock Park Canal west towards Lake Okeechobee last sunday in fresh water, 70+ degrees, 30+ gallons of gas, two adults, 13.5" of setback, Trophy Plus 26 at a speed of 77.0 MPH on my Garmin handheld GPS!!! Not bad for a stock fishing motor!!!
Here's a quick video from the Jupiter Sandbar:
http://www.youtube.com/watch?v=rEaIGav6DqY

96 242convincor 100 mph with 870hp blower motor when it stayed together 5700 30 pitch bravo 90 mph 700hp 555 inch xr drive sportsmaster lower 28 pitch bravo1.

97 253 Custom 496 R-tech Procharged 825 Hp burried the 90 mph gps speedo yesterday with more to go! Xr drive w/28 Bravo 1. Imco hd helmut, gimbal, and full hyd. steering. Hull handled speed very well and I was in some chop too! I gotta get my mech. actuator to get her all dialed in now.(and a bigger speedometer.)

Holly Molly man thats good what kind of rpms were you turning with that 28p Whats your gear ratio in your drive.

:Score-101010:

1.50 is the ratio. I am not sure on the rpms. The engine will turn 6200 before hitting the rev limiter. I was so excited I did'nt see the rpms. I will make some more runs this weekend and get more info.:drink:

Was that a bravo 1 28p ?? MAN that boat is flying

:evilb:

Yup. Bone stock 28p Bravo 1. I'm heading up to Maine tonight. Hopefully the weather cooperates for some boating this weekend.

6100 rpm @ 90 something mph. Will have new speedo soon unless I can get my neighbors' handheld gps this weekend. Freakin thing sounds like a jet at full throttle. I just hope everything stays together this season.(XR) This project really put me in the poor house! I will keep you guys posted.

I know this thread is getting old but lets hear some more numbers! I have an update to mine, last year I ran 85mph with a 30p bravo, I just sent it out to cutting edge propellers to be labbed, hoping to break into the high 80's.

Checkmate 2800SX Outboard/twin Mercury 2.4L 200's, 24" of setback at 18" centers, DAH 26 pitch choppers, 6300rpm @ 71.11 MPH

Update with labbed prop, ran 87.6 gps, with gf, me, 3/8 fuel. I didn't realize it but for my setup every 120lb added to boat I will lose 1mph, so keep this in mind when testing props.

88 281 checkmate with 565. So far 79.6 on gps with bravo drive and labbed 28p!

2001 280zt. Single step. 502 415hp. 23p 3 blade. 64 gps.

26BB 85mph

96 253 procharged 454MPI with cam/heads/CMI and stock Bravo drive with nosecone and 30" stock bravo one prop. 5400rpm 86gps

Nice man that's fast in a 253. How much HP 700ish?

82predictor. Yes original dyno was 704hp at 5250rpm. I was only able to run it for about 2 hrs before the plugged oil line in the procharger burned the compressor up......I had a 26p Bravo then and could only get 76gps (and I was happy with that) I sent the compressor back to ATI and bolted it back on after a complete rebuild.....and wow did the engine wake up! I had no trouble over-revving the 26p so I bought a 30p and spun that beyond where the HP was made on the original dyno so I then bought a 32P(my only brand new prop I every purchased and its more like a 28P...I have to send it back). Obviously the original compressor was on its way out and I really don't know where it makes the most HP or how much it makes now. I got a short video on YouTube (below)....its got CMI TubeTops with 4.5" dry pipes so its pretty loud in the narrow river-LOL
https://www.youtube.com/watch?v=OIci06FPwp4

Nice video! Really carrying the bow!

looks and sounds great!

2000 ZT280 with 548ci natural aspirated motor runs 79mph @5300 CMI dry pipes