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bpalbers
MMT Member
Joined: Sun Sep 29, 2013 7:56 pm Posts: 9
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briggs 40 efi max rpms
anyone know what the max recommended rpms for a stock briggs 40 efi is. its on a 25th anniv. mud buddy hdr
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Fri Oct 26, 2018 6:41 pm |
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FRANKtheTAU
MMT 1000 Club
Joined: Thu Dec 29, 2011 10:30 pm Posts: 1386 Location: West TN
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Re: briggs 40 efi max rpms
_________________ 40 Backwater SWOMP Lite / 1752 Alweld Mud
6.5 Backwater SWOMP Lite / 1440 PolarKraft
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Fri Oct 26, 2018 7:46 pm |
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Wchauvin
MMT 1000 Club
Joined: Sat Sep 30, 2017 7:10 pm Posts: 1872
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Re: briggs 40 efi max rpms
As does mine
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Sat Oct 27, 2018 8:49 am |
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Gigafowl
MMT Elite Member
Joined: Tue Jan 13, 2009 7:19 pm Posts: 6441 Location: Trinity Bay - Texas
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Re: briggs 40 efi max rpms
_________________ Eat - Sleep - Hunt ! ! !
"It is good to have an end to journey toward; but it is the journey that matters, in the end."
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Sat Oct 27, 2018 9:10 am |
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Wchauvin
MMT 1000 Club
Joined: Sat Sep 30, 2017 7:10 pm Posts: 1872
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Re: briggs 40 efi max rpms
Optimal rpms for my rig with a worked 12 pitch rapid and cut skeg is 4360. My two blade runs 4450 at optimal
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Sat Oct 27, 2018 9:49 am |
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banded-mallard
MMT 1000 Club
Joined: Wed Oct 07, 2009 8:18 pm Posts: 4310
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Re: briggs 40 efi max rpms
The new 40 has different internals thus can spin it pass 5000, would I, not for long, but you can if you have the mod done to bypass.
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Mon Oct 29, 2018 3:35 am |
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Will C
MMT Sponsor
Joined: Fri Jan 10, 2014 1:16 pm Posts: 2107 Location: Gladewater TX
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Re: briggs 40 efi max rpms
Ecu is set at 4800 stock
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Mon Oct 29, 2018 7:50 am |
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bpalbers
MMT Member
Joined: Sun Sep 29, 2013 7:56 pm Posts: 9
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Re: briggs 40 efi max rpms
im runnin a raptor 3 blade on mine, its on 1854 prodigy. still breaking motor in but am trying to gather info as this is my first surface drive so im learning how to drive it as i go.
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Mon Oct 29, 2018 11:26 am |
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daddyflea
MMT Pro Member
Joined: Sun Jul 10, 2011 4:34 pm Posts: 351
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Re: briggs 40 efi max rpms
Mine will hit Max at 4250 I am not in favor of real high RPMs myself
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Mon Oct 29, 2018 1:21 pm |
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MaXXis85
MMT Elite Member
Joined: Wed Jan 14, 2009 7:23 am Posts: 6233 Location: Tarkington, TX
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Re: briggs 40 efi max rpms
_________________ Bayou Surface Drive 337-351-0362 Tarkington, TX 77327
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Tue Oct 30, 2018 5:16 am |
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FRANKtheTAU
MMT 1000 Club
Joined: Thu Dec 29, 2011 10:30 pm Posts: 1386 Location: West TN
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Re: briggs 40 efi max rpms
_________________ 40 Backwater SWOMP Lite / 1752 Alweld Mud
6.5 Backwater SWOMP Lite / 1440 PolarKraft
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Tue Oct 30, 2018 7:25 am |
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dead animal
MMT 1000 Club
Joined: Fri Jan 16, 2009 3:18 pm Posts: 1726
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Re: briggs 40 efi max rpms
I put a new 40 briggs powerhead on my old middle section and gen 3 {2:1} lower unit Friday.
put on a new 2 blade prop. was all over the 4830+- cut out. ran best 4750 +-. motor is a fricken beast. gonna need to choke it down some with more prop.
3 year warranty, let it eat.
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Sun Nov 04, 2018 5:46 pm |
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Gigafowl
MMT Elite Member
Joined: Tue Jan 13, 2009 7:19 pm Posts: 6441 Location: Trinity Bay - Texas
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Re: briggs 40 efi max rpms
Enjoy the first glorious 50 hours !!!!
_________________ Eat - Sleep - Hunt ! ! !
"It is good to have an end to journey toward; but it is the journey that matters, in the end."
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Sun Nov 04, 2018 6:42 pm |
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Wchauvin
MMT 1000 Club
Joined: Sat Sep 30, 2017 7:10 pm Posts: 1872
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Re: briggs 40 efi max rpms
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Mon Nov 05, 2018 6:49 am |
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oleman
MMT Member
Joined: Sun Sep 13, 2009 8:58 am Posts: 49
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Re: briggs 40 efi max rpms
_________________ 16 x 48 Alweld - 36 PD FPR PT&T
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Mon Nov 05, 2018 6:18 pm |
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Wchauvin
MMT 1000 Club
Joined: Sat Sep 30, 2017 7:10 pm Posts: 1872
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Re: briggs 40 efi max rpms
The old man read something about them blowing up after 50. I run mine 4 days a week and have over 50 and she runs like a top. I'm outrunning most of the heavily modded motors in my area. Couldn't be happier with my 40
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Mon Nov 05, 2018 6:58 pm |
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dead animal
MMT 1000 Club
Joined: Fri Jan 16, 2009 3:18 pm Posts: 1726
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Re: briggs 40 efi max rpms
in only put 3.5 hrs on mine this weekend, but I will get to 50 pretty quick. lol we will see!!
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Tue Nov 06, 2018 1:11 pm |
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Wchauvin
MMT 1000 Club
Joined: Sat Sep 30, 2017 7:10 pm Posts: 1872
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Re: briggs 40 efi max rpms
Indeed we shall bro lol
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Tue Nov 06, 2018 3:02 pm |
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Southern Hunter
MMT Pro Member
Joined: Tue May 06, 2014 1:03 pm Posts: 155
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Re: briggs 40 efi max rpms
Wchauvin and dead animal.....
Are you two coming from 37’s? If so what differences are you seeing over the 37’s? Im more interested in load carrying than speeds.
Sent from my iPhone using Tapatalk
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Tue Nov 06, 2018 10:19 pm |
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JLACOUR
MMT 1000 Club
Joined: Wed Jan 14, 2009 8:18 pm Posts: 4915 Location: Lake Jackson, TX
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Re: briggs 40 efi max rpms
_________________ 37 PD EFI FPR 18x48 Tiller SOLD -- 36 PD EFI FPR 18x48 Stick Steer SOLD -- 27 PD FPR 16x36 Skiff
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Tue Nov 06, 2018 10:35 pm |
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Wchauvin
MMT 1000 Club
Joined: Sat Sep 30, 2017 7:10 pm Posts: 1872
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Re: briggs 40 efi max rpms
Never had a surface drive before this 40 bro, always had long tail go devils and outboards
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Wed Nov 07, 2018 9:06 am |
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dead animal
MMT 1000 Club
Joined: Fri Jan 16, 2009 3:18 pm Posts: 1726
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Re: briggs 40 efi max rpms
I had a 36 with a carb. new efi 40 feels stronger motor and pulls to 4800 real quick. I have a 2:1 lower unit and went from 23-24 normal deep speeds to 27-28 normal deep speed. faster in skinny water. with the 1.5:1 lower unit it would probly pickup a couple mph, but I ain't worried about that, I want the grunt in the floton. need a 13'' prop if I can find one.
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Wed Nov 07, 2018 5:42 pm |
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EGood
MMT Pro Member
Joined: Wed Jul 19, 2017 8:34 pm Posts: 118
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Re: briggs 40 efi max rpms
Hey dead animal. What size boat you running. I’ve been thinking about swapping a 40 on my PD gen 3.
Sent from my iPhone using Tapatalk
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Thu Nov 08, 2018 11:06 am |
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daddyflea
MMT Pro Member
Joined: Sun Jul 10, 2011 4:34 pm Posts: 351
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Re: briggs 40 efi max rpms
Why is it that my 40 never gets over 4250?
My 40 only runs about 23 or 24 with a load and will get 26 or 27 with just me in it but it is nowhere near 4250.
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Fri Nov 09, 2018 1:19 pm |
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TGunn
MMT F.E.
Joined: Tue Feb 05, 2013 8:39 pm Posts: 764
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Re: briggs 40 efi max rpms
I went from a 37EFI to the 40EFI and wasn't expecting a noticeable difference. I was very, very surprised at the difference: viewtopic.php?f=3&t=73115
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Fri Nov 09, 2018 1:45 pm |
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bluesky2012
MMT F.E.
Joined: Mon Jul 14, 2014 8:19 am Posts: 981
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Re: briggs 40 efi max rpms
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Fri Nov 09, 2018 7:32 pm |
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Will C
MMT Sponsor
Joined: Fri Jan 10, 2014 1:16 pm Posts: 2107 Location: Gladewater TX
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Re: briggs 40 efi max rpms
Lol, thats what I was thinking
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Fri Nov 09, 2018 8:47 pm |
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Gigafowl
MMT Elite Member
Joined: Tue Jan 13, 2009 7:19 pm Posts: 6441 Location: Trinity Bay - Texas
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Re: briggs 40 efi max rpms
_________________ Eat - Sleep - Hunt ! ! !
"It is good to have an end to journey toward; but it is the journey that matters, in the end."
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Sat Nov 10, 2018 8:49 am |
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brycecheramie
MMT 1000 Club
Joined: Thu Nov 04, 2010 7:38 am Posts: 4323 Location: Cut Off, La.
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Re: briggs 40 efi max rpms
_________________ Refurbishing a Prodrive
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Sat Nov 10, 2018 8:59 am |
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dead animal
MMT 1000 Club
Joined: Fri Jan 16, 2009 3:18 pm Posts: 1726
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Re: briggs 40 efi max rpms
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Sun Nov 11, 2018 10:07 am |
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Wchauvin
MMT 1000 Club
Joined: Sat Sep 30, 2017 7:10 pm Posts: 1872
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Re: briggs 40 efi max rpms
respect the crawfish skiffs!!!! (I got one too and then boys can't run with me) lol
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Sun Nov 11, 2018 4:33 pm |
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Will
MMT Elite Member
Joined: Fri Jul 08, 2011 1:54 pm Posts: 8133
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Re: briggs 40 efi max rpms
Mine set at 5500, turn it 5000 Everytime I got out. Runs best at 4850 though. Still playing with props.
_________________ Before the internet, the majority of the village idiots stayed in their villages.
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Wed Nov 21, 2018 3:16 pm |
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dead animal
MMT 1000 Club
Joined: Fri Jan 16, 2009 3:18 pm Posts: 1726
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Re: briggs 40 efi max rpms
with 16 hrs on my 40, it likes to run at 4750 +-. changed the oil today. first oil change, put 15w-50 mobil one and a wix #51348 oil filter.
it bounces on the rev box a lot, glad it has a 3 yr warranty. the starter drags like a mofo, but it keeps starting.
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Wed Nov 21, 2018 8:32 pm |
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Wchauvin
MMT 1000 Club
Joined: Sat Sep 30, 2017 7:10 pm Posts: 1872
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Re: briggs 40 efi max rpms
Y'all need some prop work done and some cupping/pitch added if y'all are turning that many rpms imo. Mine turns 4350 with my 12 pitch rapid prop, and 4500 with my 10 pitch fat blade. At those rpms I get the best performance on my rig. I am also running a cut skeg
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Thu Nov 22, 2018 9:08 am |
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dead animal
MMT 1000 Club
Joined: Fri Jan 16, 2009 3:18 pm Posts: 1726
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Re: briggs 40 efi max rpms
I run what's off the shelf. i'm the only person I know with a gen3 lower unit and a 40, so i'm not gonna spend a bunch of money guinnea pigging for the 'man'. been there, done that. lol snapping worked blades and going back and forth to the prop guy is a pain in the neck.
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Thu Nov 22, 2018 9:40 am |
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Wchauvin
MMT 1000 Club
Joined: Sat Sep 30, 2017 7:10 pm Posts: 1872
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Re: briggs 40 efi max rpms
Expensive too lol
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Thu Nov 22, 2018 9:56 am |
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dead animal
MMT 1000 Club
Joined: Fri Jan 16, 2009 3:18 pm Posts: 1726
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Re: briggs 40 efi max rpms
i'm at 60 hrs on the 40 now. I had the valves adjusted as I heard them banging around the 30 hour mark. been great ever since. motor is strong.
turning 4800 all the time like I do, it definitely burns more fuel than my 36 did. but it steps quick with a load and is faster, so it's a wash.
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Mon Feb 11, 2019 7:56 pm |
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MaXXis85
MMT Elite Member
Joined: Wed Jan 14, 2009 7:23 am Posts: 6233 Location: Tarkington, TX
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Re: briggs 40 efi max rpms
Here is my take.... Prop your rig to run 50 or so RPM under the rev limit Empty with half tank fuel.. That will allow you to load the motor and still have nuts to plane loads. If you trying to pitch it for every MPH you will sacrifice down low... Just cause I can make a MM run 40' don't mean they fast....Keep it useable fellas.
_________________ Bayou Surface Drive 337-351-0362 Tarkington, TX 77327
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Thu Feb 14, 2019 8:48 am |
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Will
MMT Elite Member
Joined: Fri Jul 08, 2011 1:54 pm Posts: 8133
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Re: briggs 40 efi max rpms
Yep. I'm running a 13.5p now. My heavyweight 1854 SBX holds 32mph a 4750rpm now. Not 40mph but plenty for what I do and how heavy it is. 3 batteries, extended deck, fish deck in back, cooler under the console, other fish cooler with ice, 14 gallon tank under extended deck.
_________________ Before the internet, the majority of the village idiots stayed in their villages.
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Thu Feb 14, 2019 9:01 am |
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