Checkmate speeds
#81
Registered
Join Date: Oct 2008
Location: Bird Nest
Posts: 340
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
What is this "notch"? Is it a step?
Is this the 107mph boat?
http://www.kunkelsmarine.com/newboats2.html
Is this the 107mph boat?
http://www.kunkelsmarine.com/newboats2.html
#82
Registered
Join Date: Dec 2000
Location: EASTON MA.
Posts: 6,281
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
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
blown. 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
![Stick Out Tongue](/forums/images/smilies/tongue.gif)
#83
Registered
Join Date: Dec 2000
Location: EASTON MA.
Posts: 6,281
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
Last run of the year: 73.1gps.
1999 28' Convincor
Twin stock 454 EFI Mags
Bravo 1's
27P Mirage Plus 3-blades
5100rpm
Rockin' back and forth. Gotta figure out how to settle it down w/o scrubbin' speed. I'm learning. Suggestions welcome! Not sure if I'm just trying to trim it up too much or my drives aren't at identical trim or ?????
1999 28' Convincor
Twin stock 454 EFI Mags
Bravo 1's
27P Mirage Plus 3-blades
5100rpm
Rockin' back and forth. Gotta figure out how to settle it down w/o scrubbin' speed. I'm learning. Suggestions welcome! Not sure if I'm just trying to trim it up too much or my drives aren't at identical trim or ?????
![Stick Out Tongue](/forums/images/smilies/tongue.gif)
#84
Gold Member
![](https://www.offshoreonly.com/forums/images/icons/gold_member_star.gif)
Thread Starter
#85
Charter Member #601
![](https://www.offshoreonly.com/forums/images/icons/charter_member_star.gif)
![Default](/forums/images/icons/icon1.gif)
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.
Was going to do some backup runs the next weekend and found the damaged lifters and cam lobes.
#86
Registered
Join Date: Oct 2008
Location: Bird Nest
Posts: 340
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
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.
Was going to do some backup runs the next weekend and found the damaged lifters and cam lobes.
![EEK!](/forums/images/smilies/eek.gif)
#87
I hate the winter!!
![](https://www.offshoreonly.com/forums/images/icons/platinum_member_star.gif)
Join Date: Jul 2001
Location: long island, new york
Posts: 2,707
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
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.
#88
Charter Member #601
![](https://www.offshoreonly.com/forums/images/icons/charter_member_star.gif)
![Default](/forums/images/icons/icon1.gif)
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.. ![Frown](/forums/images/smilies/frown.gif)
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..
![Frown](/forums/images/smilies/frown.gif)
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..
#89
Registered
Join Date: Jun 2007
Location: mt pocono, pa
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
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?
#90
![Default](/forums/images/icons/icon1.gif)
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...
Last edited by Commander112; 12-14-2008 at 02:20 PM.