New 200 XS 2.5 Consumer Outboard

[powerabout]

I would really like to know what HP one makes at 8000rpms.

Since the 2.5xs supposedly made 225 @ 6750 and the rating of the Ros is 240 @ 7000....

8000 is just over rev for tunnel boats

[Todd D]

does anyone remember what the dyno curve looks like on a 225 Promax? Where does it stop making power? 7600/7800.....

These xs blocks has the same 3" exhaust chest.

[Greg G]

does anyone remember what the dyno curve looks like on a 225 Promax? Where does it stop making power? 7600/7800. These xs blocks has the same 3" exhaust chest.

I would have to dig up my Promax dyno sheets to show that. I will try and find them later. Btw, I believe you are low on the 2.5XS ponies. I thought that a couple of guys put the 2005 on the dyno and they were more than 225hp. In 2005 you could also buy a 225X if I remember correctly and I could have swore that the 2.5XS Opti DFI powerhead was considered to be as strong as the 225X EFI powerhead. What a great year 2005 must have been, you could buy a new 280, or a new 225X, or a new 2.5XS.

[Bullet89]

I was at Merc school earlier this year and asked how much longer they were going to build Optimax engines. They said until the EPA requires them to install catalytic converters on outboards. The new non-Verado 150-200 is meant to be the replacement but they are going to build them as long as they can. They said that the new four strokes are ready to have a converter bolted right on. I think Mercury's view on it is that it would not be profitable because it would only be short term (1-2 years) at best. The EPA is the enemy of the high performance outboards. It has been rumored that 2016 is the last year for the Optimax.

[whipper]

Some one with the know how and I know there's lots on hear that can. Needs to make new billet 2.5 blocks the same as the 225PM and have them made to accommodate the newer electronics to 8000 rpm in about a S3000 please. You can call it vintage still as it would be a replica engine to beat the epa. Car guys do that all the time. its no different than owning a 2000 promax then those epa rules do not apply.

My 96 225 PM pulls till about 7500rpm then i can notice it stop pulling after that. You can 3D print and machine billet blocks nowadays on cad.

[Todd D]

Someone is building billet 2.5 blocks.
It was debuted at jasper.
My guess it's gonna be a million $.......

[LongShot]

Someone is building billet 2.5 blocks.
It was debuted at jasper.
My guess it's gonna be a million $.......

It's going to be expensive. Relatively few units will be sold and I am sure developmental costs are astronomical. Matthew is to be commended for his efforts. Casting them would be much, much cheaper.

[Todd D]

I hear that he used the factory front half......?

[Greg G]

does anyone remember what the dyno curve looks like on a 225 Promax? Where does it stop making power? 7600/7800.....

Here is the Dyno printouts on my 225 Promax. Triple click on it to expand fully. These are two separate runs done several hours apart but on the same day.

[xb03fs]

anyone have one on a 200 EFI up to 6800? Curious how much quicker torque start dropping. I feel a nociatble loss at 6200 and a more dramatic lose at 6400 and its really tough to turn past 6800 on my 200 EFI....my "speed prop" still turns 6800 on my hull solo.

[dogeatdog]

I just sold my 2005 2.5XS and I would guess it had about 240 hp. It pulled easily to the limiter and would pull more if it could. Great motor, got 6.8 mpg and was easy on the oil and fuel bill. Would like to see this in a 15 inch version!

[Greg G]

Dont think You Will get their attention with this email. Now if you would make a list of all the potential buyers and multiply that with 20k for each motor and the total is 1 million dollar than you might get their attention! Good luck!

I'd make it easy for Mother Merc. You can have any 200XS you want for $19,900.

20" - Same Price
15" - Same Price
ROS Clamp Bracket - Same Price
Lighter Fishin Bracket - Same price
Sportmaster only. 1.87 only. Factory Torq tamer and blow out ring included.

Like Mr. Ford said, you can have any color you want as long as it's black and you got the jack!

[whipper]

Someone is building billet 2.5 blocks.
It was debuted at jasper.
My guess it's gonna be a million $.......

I would think useing a cnc to machine a block would be less than half the cost of casting one? Foundry costs are what's expensive i was told. Of course the cnc isnt cheep but Aluminium crate engines are and the 2.5 is much less material than a BB v8. ?

[JCSmile]

A little off topic, but what do ya'll think about a high performance 4-stroke. The fourstrokes are taking over dirtbikes and just about everything else. I heard that merc's current 115's are lighter than the 2 stroke opti's? Those new 150's are supposed to be torque monsters. Would like to see one go on a diet down to 430#, add a super charger, and let her rip. F1 cars and street bikes are spinning 12000, maybe merc will start playing with that.

[Todd D]

Here is the Dyno printouts on my 225 Promax. Triple click on it to expand fully. These are two separate runs done several hours apart but on the same day.

I'd like to see results high in the rpm curve say upto 8200!