V8 pro xs ECM?

[Jamie Nichols]

Has anyone tried re flashing them yet? I'm hoping that the 200, 225 and 250 are capable of 300hp.

[Risco]

Has anyone tried re flashing them yet? I'm hoping that the 200, 225 and 250 are capable of 300hp.

You and everyone else. I have heard the intake runners are different on 300r don’t know if it’s true or not.

[Jamie Nichols]

I'm not concerned about the R versions. The standard fishing motors cost too much as is.

[baja200merk]

Cams on the R are different too.

I have a friend doing some digging to find out if it’s just a map. If it is I’m consodering two for my 24 Skater mapped to 300 with 3.0 sportys

[PRE-Z06]

I asked Simon and he said they haven't gotten their hands on one yet, has anyone with parts catalog access compared heads, cams/valve springs, injectors, throttle body part #s to see if they're the same?

[Jamie Nichols]

I haven't found the parts schematics yet.

[PRE-Z06]

Stumbled across this...
http://www.bbcboards.net/showthread.php?t=925327

[Jamie Nichols]

Someone mentioned needing a tech with a computer to test props with the new Mercs? No way I'm paying a merc tech to test props! Could this be true?

[WaterZebra]

Someone mentioned needing a tech with a computer to test props with the new Mercs? No way I'm paying a merc tech to test props! Could this be true?

Merc techs analyze the data from the ECU based on whatever props you want to try. The ECU will remember every prop combination you test. The software will adjust the engine's parameters to make any prop run "perfect" but the data may tell you to try running a higher pitch etc, to optimize fuel economy, etc That's what the Merc tech will be doing.

[Jamie Nichols]

Merc techs analyze the data from the ECU based on whatever props you want to try. The ECU will remember every prop combination you test. The software will adjust the engine's parameters to make any prop run "perfect" but the data may tell you to try running a higher pitch etc, to optimize fuel economy, etc That's what the Merc tech will be doing.

What happens if I just throw on whatever prop runs the best without a tech? Warranty problems for the owner?

[baja200merk]

There is a cavitation control acts like traction control on a car. If the motor senses it the ecu will pull timing and reduce power automatically. My buddy has set up a few v8 now and one on a ranger was limited by this. He said you could trim out feel it adding speed but as soon as it did the ecu would pull power and lose speed. This is something that would have to be turned off in most high performance applications. This was on a 250XS v8 I’m not sure if the 300R has this or not.

[Jamie Nichols]

This really turns me off from wanting the new Mercury.

[powerabout]

There is a cavitation control acts like traction control on a car. If the motor senses it the ecu will pull timing and reduce power automatically. My buddy has set up a few v8 now and one on a ranger was limited by this. He said you could trim out feel it adding speed but as soon as it did the ecu would pull power and lose speed. This is something that would have to be turned off in most high performance applications. This was on a 250XS v8 I’m not sure if the 300R has this or not.

what no burnout button??

[baja200merk]

Hopefully it can be tuned out like optimax will go into guardian mode and reduce power if your on the rev limiter for a few seconds. That’s a scary situation when ur approaching 120 in a light tunnel boat with a big prop and a non ratcheting case.

[PRE-Z06]

There is a cavitation control acts like traction control on a car. If the motor senses it the ecu will pull timing and reduce power automatically. My buddy has set up a few v8 now and one on a ranger was limited by this. He said you could trim out feel it adding speed but as soon as it did the ecu would pull power and lose speed. This is something that would have to be turned off in most high performance applications. This was on a 250XS v8 I’m not sure if the 300R has this or not.

Imagine it's not that intrusive as it'd be surging while chopping through rough water?