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Speeds
http://mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=75636
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Author:  Brokeknee [ Wed Apr 07, 2021 7:29 pm ]
Post subject:  Speeds

So over the years speeds have steadily gone up. Originally if you had a 35hp stage 2, 32-33 mph were good speeds. Now you see stock 40hp running that and a stage 2 running 37-38. What is the difference? Have the builds become better? Heads worked differently? A 35, 37, and 40 block are in theory all the same with a stage 2 except for one being carb and the other fuel injection. Just curious what yall opinions are.

Author:  BlueShamu [ Wed Apr 07, 2021 8:23 pm ]
Post subject:  Re: Speeds

Speed is over rated.

Will it get out of its own way in the thick stuff?


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Author:  Brokeknee [ Wed Apr 07, 2021 9:03 pm ]
Post subject:  Re: Speeds

Speed is over rated to some and everything to other's.

Author:  kib876 [ Thu Apr 08, 2021 3:00 am ]
Post subject:  Re: Speeds

You are right, I can remember when low to mid 30’s was “fast”. Now the stock motors are running that. I’ve modded 2 motors in the past, both of which ran about the same speeds as my stock 37 GTR runs empty. However, the mods were very nice when I loaded the boats down and didn’t drop very many mph at all.

Author:  Brokeknee [ Thu Apr 08, 2021 6:09 am ]
Post subject:  Re: Speeds

The bigger cam and better heads help tremendously with load carrying. In stock form the 40s are impressive from the old 35/36 models, but I don't understand why they are so much quicker when built. I guess the EFI makes that much of a difference.

Author:  bluesky2012 [ Thu Apr 08, 2021 6:38 pm ]
Post subject:  Re: Speeds

I think a lot of the stock 40 speeds are inflated. I’ve run next to one. Good motor, but definitely not a mid 30s rig by any stretch. 30, sure, not much above it though.


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Author:  BlueShamu [ Fri Apr 09, 2021 7:00 am ]
Post subject:  Re: Speeds

All speeds posted on the www for mud motors are inflated...tail winds, tail currents, shallow water, light load....all 4 of those in my favor, I just gained at least 3.5 MPH.


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Author:  Brokeknee [ Fri Apr 09, 2021 8:45 am ]
Post subject:  Re: Speeds

Speeds are definitely inflated, but you can consistently see a 40hp run 31-32mph. Which like stated above use to be borderline "fast".

Author:  DmaxHunter [ Fri Apr 09, 2021 10:13 am ]
Post subject:  Re: Speeds

I put a new 40 on a 10 model Gator series 18x54, with a decent hook at the worst possible spot, unloaded I ran 29 to 30 mph. I have sense taken the hook out, but am now running a Hammer, which nets me 28ish loaded or unloaded.

yes the stock 40 is better than a stock 35 yes, will it out run a modded 35, that depends on so many factors, rig, load, prop.....

BlueSky ran next to me with his 17x54 3/16 bottom, heads, cam, and exhaust and he did not have an issue keeping up, we are both running hammer props, so speed isnt our main priority.

Needless to say 40 is nice, but I will take the ability to toat a load over speed. The 40 has been a good motor so far.

Author:  Will C [ Fri Apr 09, 2021 12:49 pm ]
Post subject:  Re: Speeds

yes over the years builders have dialed in there combos. now a good stg2 makes what the badass full builds used to make

Author:  dpd [ Thu Apr 15, 2021 7:27 am ]
Post subject:  Re: Speeds

I have a stock 40 efi on a 16x48 hull and never really took a good look at my speeds on the new 40.

Saturday I went fishing and decided to look. Used the speedbox on my cell phone and when I got to some open water where I could pay attention I was flipping back and forth between 29 & 30 mph.

That is it. I had some gear but I am not going to claim that I was loaded like a barge because I wasn't.

IF I had an 18ft hull maybe it would be different; faster; maybe not.

I am keeping the motor stock because I just don't feel like fooling with mods and props anymore.

I do care what my motor does when I get in the soup and gumbo and lettuce and so far I am pleased.

I think I would benefit most by playing with the skeg on my GEN II lower unit.

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