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-   -   Tohatsu 40 HP TLDI (http://www.saltycajun.com/forum/showthread.php?t=21203)

Natural Light Kid 07-24-2011 12:18 PM

Tohatsu 40 HP TLDI
 
Just bought a 40 HP TLDI. I know with the old carbureted tohatsu 40's you could bump them up to a 50hp. Is there anything you can do with a TLDI 40 to get a little more out of it?

weedeater 07-24-2011 12:23 PM

Quote:

Originally Posted by Natural Light Kid (Post 292419)
Just bought a 40 HP TLDI. I know with the old carbureted tohatsu 40's you could bump them up to a 50hp. Is there anything you can do with a TLDI 40 to get a little more out of it?

Lake Area marine will do it or if you bought it there it may be done, there is somethin in exhaust they take out. How do you like the motor, I am thinking of getting one next time.

PaulMyers 07-24-2011 12:26 PM

I'd like to know how you like it also, it's next on my list. My 89' 25 merc doesn't push the 16x48 the way I would like.

1fastmerc 07-24-2011 01:26 PM

Quote:

Originally Posted by PaulMyers (Post 292425)
I'd like to know how you like it also, it's next on my list. My 89' 25 merc doesn't push the 16x48 the way I would like.

I'll trade boats with ya.I think you would look good in a pink boat.

PaulMyers 07-24-2011 01:32 PM

Quote:

Originally Posted by 1fastmerc (Post 292463)
I'll trade boats with ya.I think you would look good in a pink boat.

Thanks, but I already got a little boat. :D. Now if you just want to see what your motor will do on it, we can make that happen. The 16x48 has a jack plate so we can set it where ever you need. I also have a gps in it so we can see what it will do.

EVO

weedeater 07-24-2011 02:05 PM

[QUOTE=PaulMyers;292469]Thanks, but I already got a little boat. :D. Now if you just want to see what your motor will do on it, we can make that happen. The 16x48 has a jack plate so we can set it where ever you need. I also have a gps in it so we can see what it will do.

EVO[/QUOTE

you better of with that 25 Paul, at least it runs and stays at your house more then Jerry's Marine:D

Big Ridge 07-24-2011 03:05 PM

Its very easy to make it into a 50 hp, look at the air intake it has a screen over what looks like a flat washer behind the screen. The guys at Lake Area showed me. Stick a screw driver in it and pop it out. Takes all of 5 seconds. I did it to my brothers motor. Made a big difference. If you go to Lake area walk to the back and ask a mechanic he will show you.

weedeater 07-24-2011 03:40 PM

Quote:

Originally Posted by Big Ridge (Post 292501)
Its very easy to make it into a 50 hp, look at the air intake it has a screen over what looks like a flat washer behind the screen. The guys at Lake Area showed me. Stick a screw driver in it and pop it out. Takes all of 5 seconds. I did it to my brothers motor. Made a big difference. If you go to Lake area walk to the back and ask a mechanic he will show you.

what size boat your brother have it on and how's the hole shot and top end

Natural Light Kid 07-24-2011 05:29 PM

Quote:

Originally Posted by Big Ridge (Post 292501)
Its very easy to make it into a 50 hp, look at the air intake it has a screen over what looks like a flat washer behind the screen. The guys at Lake Area showed me. Stick a screw driver in it and pop it out. Takes all of 5 seconds. I did it to my brothers motor. Made a big difference. If you go to Lake area walk to the back and ask a mechanic he will show you.

Awesome. That's what I was hoping for. Basically flipping a switch and getting 10 HP. Thanks.

scott craft 07-24-2011 05:30 PM

I know five people from work that have that motor and they all like it. If you buy it from Lake Area they will pop out the restrictor for you, but I think it's fairly easy to do.

weedeater 07-24-2011 07:16 PM

Quote:

Originally Posted by scott craft (Post 292561)
I know five people from work that have that motor and they all like it. If you buy it from Lake Area they will pop out the restrictor for you, but I think it's fairly easy to do.


who besides Rodney

scott craft 07-24-2011 07:47 PM

Quote:

Originally Posted by weedeater (Post 292626)
who besides Rodney

Chuck Allen, Allan Cooley, Ally Dupre and Harvey Daigle. All of them get barely over 30 with two people and gear except for Rodney.

weedeater 07-24-2011 10:00 PM

Quote:

Originally Posted by scott craft (Post 292647)
Chuck Allen, Allan Cooley, Ally Dupre and Harvey Daigle. All of them get barely over 30 with two people and gear except for Rodney.

his is turned to a 50 not sure on theirs

scott craft 07-24-2011 10:03 PM

Quote:

Originally Posted by weedeater (Post 292865)
his is turned to a 50 not sure on theirs

All of them are turned to a 50.

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1fastmerc 07-24-2011 10:06 PM

[quote=weedeater;292475]
Quote:

Originally Posted by PaulMyers (Post 292469)
Thanks, but I already got a little boat. :D. Now if you just want to see what your motor will do on it, we can make that happen. The 16x48 has a jack plate so we can set it where ever you need. I also have a gps in it so we can see what it will do.

EVO[/QUOTE

you better of with that 25 Paul, at least it runs and stays at your house more then Jerry's Marine:D

Isn't past your bedtime?

PaulMyers 07-24-2011 10:52 PM

[quote=1fastmerc;292870]
Quote:

Originally Posted by weedeater (Post 292475)

Isn't past your bedtime?

Who me???

Big Ridge 07-25-2011 02:32 AM

Brother has his on a 1842 Southfork with a vented tunnel, troll motor, 2 batteries, ice chest and beer, 2 peps runs great, not sure how fast. I have a 40 merc with 60 carbs, this will be my next motor if they still around when I am ready.

1fastmerc 07-25-2011 06:25 AM

[quote=PaulMyers;292925]
Quote:

Originally Posted by 1fastmerc (Post 292870)

Who me???

Haha. No weedwacker.

Tiger260 07-25-2011 07:53 AM

Supposedly the new HPDI style Tohatsu they just got is capable of the same thing. There is simply an air restrictor plate in the intake they remove

Natural Light Kid 07-26-2011 09:27 PM

Does anyone have experience with boyesen reeds in these motors?

scott craft 07-26-2011 09:31 PM

Quote:

Originally Posted by Natural Light Kid (Post 294087)
Does anyone have experience with boyesen reeds in these motors?

I think all that can be done is remove the restrictor. I'm not sure if they have reeds.

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weedeater 07-26-2011 10:09 PM

Quote:

Originally Posted by scott craft (Post 294094)
I think all that can be done is remove the restrictor. I'm not sure if they have reeds.

Sent from my Droid using Tapatalk

with ya on that, they fuel injected so unless you got a secret then no reeds. I have wondered if exhaust would do anything.

Big Ridge 07-26-2011 11:38 PM

No Reeds, Direct Fuel Injection

PaulMyers 07-26-2011 11:52 PM

I want to try one of these on my 16x48 before I get one. Any takers? :D

EVO

weedeater 07-26-2011 11:55 PM

Quote:

Originally Posted by PaulMyers (Post 294198)
I want to try one of these on my 16x48 before I get one. Any takers? :D

EVO

I have an uncle that just got one on a 1648 alweld, I will ask my cousin how it does compared to his 40hp Merc he had on the same size alweld and let you know.

scott craft 07-27-2011 04:07 AM

Maybe I'm crazy or something, but no way would I take a 40 tohatsu over a 40 merc. 42 cubic inches won't do what 59 cubic inches will except get better fuel economy.

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weedeater 07-27-2011 04:54 AM

Quote:

Originally Posted by scott craft (Post 294219)
Maybe I'm crazy or something, but no way would I take a 40 tohatsu over a 40 merc. 42 cubic inches won't do what 59 cubic inches will except get better fuel economy.

Sent from my Droid using Tapatalk

been a few yrs since he sold the Merc, Mark Miller has a new 40hp Nissan which is same as the Tohatsu on a 1844 and he says it is more responsive then a 40 Merc that he had on it as far as gettin out the hole

PaulMyers 07-27-2011 05:00 AM

Quote:

Originally Posted by weedeater (Post 294200)
I have an uncle that just got one on a 1648 alweld, I will ask my cousin how it does compared to his 40hp Merc he had on the same size alweld and let you know.

That's what I'm talking about, thanks. My 25 runs 26 on the gps. Just trying to figure out what the 40 should do.

EVO

Dink 07-27-2011 06:34 AM

Paul. What does your Hull weigh? Have a 40 Nissan on a 13"6' whaler and it'll do upper 30's. Played with the prop and got 43 once, but it was insane!! Way to fast!! Boat would go airbourne.......whaler Hull is a little over 300lb

PaulMyers 07-27-2011 06:59 AM

Quote:

Originally Posted by Dink (Post 294234)
Paul. What does your Hull weigh? Have a 40 Nissan on a 13"6' whaler and it'll do upper 30's. Played with the prop and got 43 once, but it was insane!! Way to fast!! Boat would go airbourne.......whaler Hull is a little over 300lb

Not sure, I do know it's way more than I want to pick up. :D I really have no clue. It's an Alweld 16x48 with front deck and rear bench.

1fastmerc 07-27-2011 07:12 AM

Quote:

Originally Posted by scott craft (Post 294094)
I think all that can be done is remove the restrictor. I'm not sure if they have reeds.

Sent from my Droid using Tapatalk

Then what would they have?

Dink 07-27-2011 07:14 AM

Not sure you need reeds on the new models. Its all electronic....piston closes the exhaust port, and injectors do the rest??? Just a guess

scott craft 07-27-2011 11:34 AM

Quote:

Originally Posted by weedeater (Post 294222)
been a few yrs since he sold the Merc, Mark Miller has a new 40hp Nissan which is same as the Tohatsu on a 1844 and he says it is more responsive then a 40 Merc that he had on it as far as gettin out the hole

Set-up makes a difference.

Quote:

Originally Posted by 1fastmerc (Post 294241)
Then what would they have?

I don't know for sure how it works, but I think they have an air pump that pressurizes the fuel, but don't know how it avoids using reeds.

Natural Light Kid 07-27-2011 12:08 PM

I am no mechanic but I thought all 2 stroke engines, carbureted or fuel injected, had reeds.

weedeater 07-27-2011 12:13 PM

Reeds are on carbureted engines but not fuel injected unless someone knows somthing I dont. From best I understand in a nut shell the jets and reeds in a carburetor do the same thing that injectors due on a fuel injected engine, both have their pros and cons. The deal with removing the restrictor on the TLDI is like unrestricting air flow on any engine and from stuff I have read on this new engine it will adjust its self for more air flow and add more fuel due to computer on engine so the next thing to figure out is if you can modify the exhaust in any way to get more out flow.

weedeater 07-27-2011 12:30 PM

Quote:

Originally Posted by Natural Light Kid (Post 294501)
I am no mechanic but I thought all 2 stroke engines, carbureted or fuel injected, had reeds.

Ok I did alittle more looking and I have learned somthin new on this, I was looking at 4-stroke setup not 2 stroke. The reed is used to replace the valves found in a 4 stroke, but I think that the deal on the new engine as far as changing reeds is gona be a differnce of old jets vs new has injectors. I am sure someone will find a way to trick cpu and then find a way to open air intake, run bigger injectors and open exhaust but its alittle more involved then the older motor where you just change a few parts and make adjustments with screw driver.

1fastmerc 07-27-2011 12:37 PM

Quote:

Originally Posted by weedeater (Post 294510)
Ok I did alittle more looking and I have learned somthin new on this, I was looking at 4-stroke setup not 2 stroke. The reed is used to replace the valves found in a 4 stroke, but I think that the deal on the new engine as far as changing reeds is gona be a differnce of old jets vs new has injectors. I am sure someone will find a way to trick cpu and then find a way to open air intake, run bigger injectors and open exhaust but its alittle more involved then the older motor where you just change a few parts and make adjustments with screw driver.

Moron.

weedeater 07-27-2011 12:39 PM

Quote:

Originally Posted by 1fastmerc (Post 294513)
Moron.

o and you know so much on this, why dont you chime in CRUSTY GAS LINE....:cool:

1fastmerc 07-27-2011 12:47 PM

Quote:

Originally Posted by weedeater (Post 294516)
o and you know so much on this, why dont you chime in CRUSTY GAS LINE....:cool:

It was not crusty but brittle.

weedeater 07-27-2011 12:49 PM

Quote:

Originally Posted by 1fastmerc (Post 294519)
It was not crusty but brittle.

thats why you not supose to use ethonal

2ndamendment 07-27-2011 02:05 PM

Quote:

Originally Posted by PaulMyers (Post 294238)
Not sure, I do know it's way more than I want to pick up. :D I really have no clue. It's an Alweld 16x48 with front deck and rear bench.


If your Alweld 16X48 is the VEE LA model then we have the same hull. Not sure but a guess for a stripped down hull weight would be 450 to 550 lbs.

scott craft 07-27-2011 03:53 PM

Quote:

Originally Posted by weedeater (Post 294510)
Ok I did alittle more looking and I have learned somthin new on this, I was looking at 4-stroke setup not 2 stroke. The reed is used to replace the valves found in a 4 stroke, but I think that the deal on the new engine as far as changing reeds is gona be a differnce of old jets vs new has injectors. I am sure someone will find a way to trick cpu and then find a way to open air intake, run bigger injectors and open exhaust but its alittle more involved then the older motor where you just change a few parts and make adjustments with screw driver.


You're talking serious cash with cpu work and bigger injectors. If you want to hop up a motor a tldi isn't for you. Get a merc 40 or a tohatsu with carbs on it. The days of hopping up new outboards is pretty much over. Buy a new motor, put a tach on it and prop it right and work on the setup. The fuel efficiency a new motor gets should make up for not being able to hop it up.

Miketrout 07-27-2011 11:00 PM

Where on th motor is this restrictor i have a Nissan 40 that's on a 16x36 wellbuilt an it cruises really good!!! I would like to check this out see what kinda of power i will get....

weedeater 07-27-2011 11:54 PM

Quote:

Originally Posted by Miketrout (Post 294963)
Where on th motor is this restrictor i have a Nissan 40 that's on a 16x36 wellbuilt an it cruises really good!!! I would like to check this out see what kinda of power i will get....

I would run by Lake Area Marine and talk to a guy in the shop

huntin fool 07-28-2011 12:14 AM

The restrictor trick doesn't work with all motors correct?......

weedeater 07-28-2011 12:38 AM

Quote:

Originally Posted by huntin fool (Post 294987)
The restrictor trick doesn't work with all motors correct?......

only ones I have heard of doin this on is the TLDI motors, what motor are you wanting to try something on

Miketrout 07-28-2011 01:14 AM

It's a 2001 Nissan 40 made buy tahotsua it's a carborated motor there are 3 cylinders on it

weedeater 07-28-2011 02:52 AM

Quote:

Originally Posted by Miketrout (Post 294992)
It's a 2001 Nissan 40 made buy tahotsua it's a carborated motor there are 3 cylinders on it

different animal, you can change carbs, reeds and exhaust work and get more power pretty easy. I work with a guy that has same motor as yours on a 1648 rebuilt that runs 47ish, the motors we are talkin bout are the new fuel injected TLDI motors.

Miketrout 07-28-2011 05:53 PM

K i will keep that I'n mine I'm running about 35 maybe 40 buy my self it's pretty legit I'n shallow water also

chris3298 01-07-2012 11:13 PM

Old thread I found in a google search engine i want to revive.

I've got a 2010 Tohatsu 50 hp TLDI short shaft tiller handle on a 2011 15x52 alweld Vee La model.
Stock aluminum 11.1x14 aluminum prop on GPS is 39.1 mph.

I'm bringing this thread back to life because i want to know can i yank this restrictor plate out my intake and get more ponies out of my 50 motor? I have tried shining in with a light but like how far into the throttle body does this plate/cone go? is this plate in there loosely once you remove the screen?

Can anyone post a picture what this cone looks like once it is removed??

I plan on this summer getting a better prop, someone I know has a few that will let me try out before i buy. I'd really like to see 50mph but not sure it is possible. There is a guy on youtube and boat racing facts that claims he took a 14ft weldbilt with the 50 TLDI and got it to run 63mph with a low water pickup and a clever 12x23.5 prop I think it was if anyone want to know really how fast these motors are.

Thanks
Chris


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