Etec HO vs regular

[David]

Have I got this right?
The 225 HO is the same powerhead as the 250
The 200 HO is the same powerhead as the 225
Would that make the 150 HO the same powerhead as the 175?

What is the rev limit on the 150 HO and the 200 small block?
Can you buy solid mounts for the small blocks?
Will either the small block 200 or 150 HO gearcase live if surfaced?

[TAXXIVADER]

THE 225 HO & THE 250 ARE BOTH OF 3.2 LITER CAPACITY.

THE 200 HO IS ALSO THE SAME CAPACITY AS THE 225..BOTH 3.2 LITER.

& YES THE 150 HO IS THE SAME CAPACITY AS THE 175.. BOTH 2.5 LITER

there are other differences such as porting , injectors , & engine management programs,( mapping )& exaust valves.
& having a browse through the BRP epc., differences in part numbers appear.

for memeory the rev-limit on the small blocks is 6250 & the limit on the bigblocks is 6050....however rpm operating ranges differ between models.

land & sea may manufacture solid mounts as they are still the same as the earlier models.

both the L & M type gear cases that come standard with the engines dont have low enough water pick ups to pun in a surfacing application..however the newer type that comes with the 300 hp has dual water pick-ups similar to the fleetmaster (mercury case).

but cant answer to wheather or not they would live...

why dont you try it.

cheers Al.

[AwesomeBullet]

Close...

The small blocks are 2.6L, the big blocks are 3.3L, with the new 250HO and 300 being 3.4L.

Not sure on the 2.6's, but the 3.3's have an operational range of 4500-5500 for the standard and 4500-5800 for the HO models. The 3.4 250HO has an operational range of 5000-6000. The big blocks have a soft limiter at 6150 and a hard limiter at 6400.

[Fish]

grant,
what is the difference between the hard and soft limiter? I know what they mean, but what happens when you get to the soft and work your way towards the hard limiter? does it effect performance?

[AwesomeBullet]

On the 225HO, at 5850 it will start to add extra fuel to try to flood the motor out since you are getting close to the soft limiter. At 6050, it starts to dump extra oil since it knows you are pounding the hell out of it. At 6150 it pulls back timing until the rpms fall back below 6000. If the rpms continue to climb and you hit the hard limiter, it puts the motor into slow mode and cuts spark to alternating cylinders and pulls you down to 1200. Been there, done that... At one of the River Ranches I melted a flo-torq hub out at WOT. Let me tell ya, even in a heavy bassboat, when you are balls to the wall and sittin pretty on the pad, and the motor all the sudden spins to 6400 and then drops to 1200 in the blink of an eye, it IS NOT a fun ride!

[David]

It says on another post here that the 225 HO is exactly the same as the 250. I wondered if that carried over the rest of the line

http://forums.screamandfly.com/forum...d.php?t=146350

[AwesomeBullet]

No, the 250 and the 225HO are not exactly the same. There are differences between the two besides just mapping of the EMM and a gearcase swap.

[Fish]

On the 225HO, at 5850 it will start to add extra fuel to try to flood the motor out since you are getting close to the soft limiter. At 6050, it starts to dump extra oil since it knows you are pounding the hell out of it. At 6150 it pulls back timing until the rpms fall back below 6000. If the rpms continue to climb and you hit the hard limiter, it puts the motor into slow mode and cuts spark to alternating cylinders and pulls you down to 1200. Been there, done that... At one of the River Ranches I melted a flo-torq hub out at WOT. Let me tell ya, even in a heavy bassboat, when you are balls to the wall and sittin pretty on the pad, and the motor all the sudden spins to 6400 and then drops to 1200 in the blink of an eye, it IS NOT a fun ride!

thanks for the reply man, that makes sense. Everything I am hearing and reading makes the h.o.'s seem pretty attractive (then again, I have always had a thing for ho's )

Yeah, the quick deceleration does not sound fun; i would think it would be even less fun on an allison hanging it out up on the pad

[ghind]

When you plug in the Evinrude diagnostic software into my model year 2008 225HO, it shows that it is running the 250map. This on a new motor fresh out of the crate. It also shows on the EPA label that it makes 186.4 kilowatts which converts to 249.something horsepower.

I believe the differences between the 250 and the 225HO are the gearbox and stickers. Same power. Same map.

As far as RPM ranges, there is a service newsletter available in BRP dealerport dated 15th November 2007 which details all that. 60 degree V6's are all 4850 to 5850 WOT range with recommended 5400-5600 (except 200 which is 5600-5850)

All current 90 degree 3.3 and 3.4 V6's 4500-5800 WOT range with recommended 5500-5600

Greg

[racer]

The 225 HO and 250 are the same powerhead and same map.

[D5GT]

What about regular 225 vs. 225 HO, what's the difference. Mapping?

[E-tec1]

3.3 liter motors 200 is stand alone 200 ho and std 225 basicly same motor,225 ho and 250, same motor,, the 3.4 250 ho is different, the 300 is different thru some mapping to the best of my memory

[AwesomeBullet]

Standard 200 is a 2.6, 200HO is a 3.3.

[racer]

Standard 225 and 225HO have different mapping.

[D5GT]

Ok, what should I do, I need (want) those extra 25hp (225 to 225 HO) If I go to local dealer, are they able to change mapping?

Does someone else this kind "tuning"