header logo

Go Back   Checkmate Community Boating Forums > Checkmate Discussion Forums > Props, Setups & Rigging
Portal Home Register Blogs FAQ Calendar Mark Forums Read

Props, Setups & Rigging This is our Checkmate setup forum. Topics include props, jackplates and setback, trim tabs, steering etc. This is also the forum to share your best setup tips and top speed numbers. So come on in and exchange setup details with your fellow members.

Main Menu
Module Jump:
Google Search
Google
Latest Poll
February 2019's Boat of the Month Vote!
This poll is closed
I vote for "Chrisg82's" Enchanter Jet! 2 14%
I vote for "JupiterPulsare's" 2400 Pulsare! 1 7%
I vote for "PA-Checkmate's" Convincor! 1 7%
I vote for "ChuckB's" 2800SX getting BIG air! 9 64%
I vote for "senator-holland's" Convincor! 1 7%
Voters: 14 100%
Notices

Welcome to the Checkmate Community Forums

Reply
 
Thread Tools Display Modes
Old 12-04-2018, 10:53 PM   #1
TMR
Wannabe
 
Join Date: Sep 2018
Posts: 12
Thanks: 7
Thanked 0 Times in 0 Posts
Rep Power: 0
TMR is on a distinguished road
Model Owned: 1996 Pulsare 2100 BR

Default Jack Plate Height



Hello, I have been a member of this forum for about 3 months. This is my first post. I have been doing a lot of reading and have found many informative posts.

I purchased a used Pulsare 2100 BR late last summer with a 225EFI Mercury 2 stroke. I have some boating and outboard motor experience but I am new to performance boating.

The boat in the attached picture is not mine but appears to be similar to mine. I got the picture from another thread on the forum. I have the same 5 1/2 CMC manual jack plate. I am running a 23 pitch Trophy Plus prop with large diameter PVS plugs. My boat seems to get on plane well and handle pretty well also going straight and in turns. Tops out at 63mph on speedometer at 5600rpm. Wish I would have taken my GPS with the one and only time we got out in the boat this year. Many rainy weekends prevented me from getting out more.

My question is: my motor is sitting about 3 lower on the jack plate than the one in the picture. Do I need a different water pickup to put my motor all the way up on the jackplate? and will that setup only be good for top speed? I would like to get into the 70plus mph range but still be able to ski and tube.

Any recommendations and advice will be greatly appreciated.

Thanks!
TMR is offline   Reply With Quote
Old 12-06-2018, 06:43 AM   #2
karzrus
Diplomat
 
karzrus's Avatar
 
Join Date: Sep 2008
Location: Edmonton
Age: 58
Posts: 1,761
Thanks: 523
Thanked 1,364 Times in 746 Posts
Rep Power: 160
karzrus has a brilliant future
karzrus has a brilliant future
Model Owned: 08 Pulsare 2100br/250xs

Default

Do you have a water pressure gauge? If you do you will be able to tell if raising the motor is causing an issue.

I have the 10” CMC jackplate and my 250xs has a regular torquemaster lower.
It is set up so that the propshaft centerline is even with the bottom of the pad at full lift. I do not have any of the side water pickup holes plugged and do not have low water pressure issues with the motor up at full lift at any speed.

The jackplate has plenty of movement down to get the motor where it needs to be for tubing and such, in fact I rarely lower the motor all the way down as the boat pulls things better with it about 1/3 up from the bottom so with the propshaft about 3.5” down from the pad.

You could add a 5-10” static setback bracket in front of your current one and raise the motor up those 3” and gain quite allot of speed without sacrificing much at all regarding pulling toys.

Raising the motor is going to reduce drag and get the motor up to the 6-6200rpm range. But also you will likely need more propeller pitch, a 25-26 trophy plus would be a good starting point, however you can wait to purchase that last, once you run out of rpms and know you need it
karzrus is offline   Reply With Quote
The Following User Says Thank You to karzrus For This Useful Post:
TMR (12-24-2018)
Old 12-06-2018, 06:17 PM   #3
TMR
Wannabe
 
Join Date: Sep 2018
Posts: 12
Thanks: 7
Thanked 0 Times in 0 Posts
Rep Power: 0
TMR is on a distinguished road
Model Owned: 1996 Pulsare 2100 BR

Default

Thank you for the information and advice karzrus.

I do not have a water pressure gauge, only a temperature gauge. The previous owner had a hydraulic jack plate on the boat but it failed so he replaced it with a manual jack plate. I’m starting to think I should spend the money on a hydraulic jack plate and be done with it. My boat already has the gauge mounted on the dash along with toggle switch to control the movement of the hydraulic jack plate. There are several brands that look decent and are priced very similarly. I was thinking of going with a 10” setback.

Is there a brand of hydraulic jack plate that I should stay away from?
TMR is offline   Reply With Quote
Old 01-27-2019, 10:06 AM   #4
TMR
Wannabe
 
Join Date: Sep 2018
Posts: 12
Thanks: 7
Thanked 0 Times in 0 Posts
Rep Power: 0
TMR is on a distinguished road
Model Owned: 1996 Pulsare 2100 BR

Default

Does adding more set back with a jackplate change the speed a boat will get up and stay on plane?

For instance, if my Pulsare 2100 BR is currently setup with the centerline of the prop at 3.5” below the pad with a 5.5” set back jack plate, and the boat gets up and stays on plane at 20mph, will the boat still get up and stay on plane at 20 mph with a 10” set back jack plate with the prop 3.5” below the pad?

Please respond,
Thanks
TMR is offline   Reply With Quote
Old 01-27-2019, 10:21 PM   #5
karzrus
Diplomat
 
karzrus's Avatar
 
Join Date: Sep 2008
Location: Edmonton
Age: 58
Posts: 1,761
Thanks: 523
Thanked 1,364 Times in 746 Posts
Rep Power: 160
karzrus has a brilliant future
karzrus has a brilliant future
Model Owned: 08 Pulsare 2100br/250xs

Default

That set up(10"setback) is what I have and while I don't pay that much attention to the speed I'm pulling tubes at, it is right in the 18-25 range and it's on plane. Of course I'll drop it off plane to get a large wake to pull the tubes through as well.
karzrus is offline   Reply With Quote
The Following User Says Thank You to karzrus For This Useful Post:
TMR (01-28-2019)
Old 01-28-2019, 08:39 PM   #6
ianz
Commander
 
ianz's Avatar
 
Join Date: May 2003
Location: 2 hours south of great boating
Age: 49
Posts: 408
Thanks: 8
Thanked 130 Times in 82 Posts
Rep Power: 198
ianz has a spectacular aura aboutianz has a spectacular aura aboutianz has a spectacular aura about
Model Owned: Pulsare 2100br 225 ProXS

Default

if you want an all around boat 10-12" will be fine. 8" for more water sports and 15ish for speed. You should have a water PSI gauge for any of the above.

I would expect that with 10" setback, you can run a 25p prop and see 70 any day and still pull a tube or skier

I have a similar boath 2100br with a 225 and run 75mph every day with a 27p and about 74 with a 25p. have 11.5 setback
__________________
IZ

Wish I was boating and not working for a living!
ianz is offline   Reply With Quote
The Following User Says Thank You to ianz For This Useful Post:
TMR (01-28-2019)
Old 01-28-2019, 10:40 PM   #7
Skip 7750
Enchanter
 
Join Date: Jan 2007
Age: 71
Posts: 156
Thanks: 0
Thanked 70 Times in 48 Posts
Rep Power: 149
Skip 7750 will become famous soon enough

Default

CMC makes an adapter that makes your jackplate 10". It is not very expensive and it bolts right on. They use these extenders to make a 10" bracket at CMC. The jackplates are all the same 5.5" or 10" with the extender. That is how they make them. Look at a 10" jackplate and you will see the extenders are bolted between the transom and the plate.


You do not need to spend the money on a power jackplate. Just set your propshaft centerline between 2.5" and 3" below the keel and you should be good to go. You can adjust your jackplate to where you feel you are getting the best performance.
Skip 7750 is offline   Reply With Quote
The Following User Says Thank You to Skip 7750 For This Useful Post:
TMR (01-29-2019)
Old 02-01-2019, 03:10 PM   #8
Blkcorvair
Playmate
 
Join Date: Sep 2015
Posts: 59
Thanks: 8
Thanked 36 Times in 10 Posts
Rep Power: 42
Blkcorvair is on a distinguished road

Default

I would definatally add a water gauge before you change anything on the engine height. Cheap insurance. I have the same boat and had a 200 efi. My motor is mounted just like that picture and I could not run my jackplate at full height without losing too much water pressure. Also had a 23 pitch trophy prop. You can plug two of those prop holes but you prolly wont see too much difference (I did not)

My top speed was 61-63.

I since switched to a 250EFI and a 25P trophy. it blows right up to 71mph and honestly probably faster but the weather turned cold and I didnt get a chance to finish tuning it. Personally I have to feather it now on take off to keep it from cavitating and Im not a big fan. Im gonna leave the 250 on it but likely go back to the 23P. I like the boat to be really freindly for Tubing Etc. If I wanna blow around a glassy lake one day, maybe Ill put the 25P back on it. Honestly if I get the 23P tuned where I like it, I will likely just sell the 25P.
Blkcorvair is offline   Reply With Quote
Old 02-02-2019, 11:32 AM   #9
TMR
Wannabe
 
Join Date: Sep 2018
Posts: 12
Thanks: 7
Thanked 0 Times in 0 Posts
Rep Power: 0
TMR is on a distinguished road
Model Owned: 1996 Pulsare 2100 BR

Default

Quote:
Originally Posted by Blkcorvair View Post
I would definatally add a water gauge before you change anything on the engine height. Cheap insurance. I have the same boat and had a 200 efi. My motor is mounted just like that picture and I could not run my jackplate at full height without losing too much water pressure.
I purchased the water pressure gauge from my local Mercury Marine dealer. I plan to install it in spring time.

I have been unsuccessful in finding the proper location to plumb the water pressure gauge on my 3.0 liter motor so it is reading true water pressure and not steam pressure.
TMR is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
16ft enticer jack plate set back and height. Stevenlockamy Props, Setups & Rigging 3 07-17-2016 02:17 PM
Is it worth getting a jack plate? needspeed Props, Setups & Rigging 6 06-17-2014 10:40 PM
88 Spectra 171 Jack Plate Info VLP Props, Setups & Rigging 17 07-05-2012 02:26 PM
to jack plate?...Not to jack plate? mlavimodiere Member Introductions 4 08-27-2011 05:24 PM
Planeing Plate for hydraulic jack plate TCAT Props, Setups & Rigging 6 11-08-2005 08:40 PM


All times are GMT -4. The time now is 05:28 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright 2002-2019 Checkmate-Boats.com & Whitecap Enterprises Corp. All Rights Reserved.
Images & Content are Copyright material and may not used without prior written permission.