Goodmorning from Italy!
 

Goodmorning everyone! I apologize for the way I write, but with the language, but they are not good at writing in the language.

I am Massimo and I am writing from Monza (Italy)

I have a RIB FOCCHI 730 EFB, (typical Italian fast inflatable boats ..)
with 377 mercruiser MPI.
Surely I will put photos in the coming days.

I have a problem with installing the module MSD 6M-2L and MSD Blaster SS.
All instructions indicate signs for EFI but no indicating instructions for MPI.

I hope some of you can help!
Thank you all!

Hi There, Just a few questions to start off with for you.

1) What year is the Mercruiser engine? Better yet, do you have the engine serial number handy? https://www.perfprotech.com/blog/art...serial-numbers

2) Is the engine stock OEM or has it been upgraded in performance?

3) How come are you switching from the Mercruiser OEM ignition system whether it be least likely Mercruiser Thunderbolt ignition system or the more probable later designed Ignition system called the HVS (High Voltage Switch) which uses a Crank Shaft Position Sensor and possibly a CAM Shaft Position Sensor as well. http://www.autozone.com/repairinfo/r...96b43f80cb36d1

4) Is the Mercruiser MPI wiring harness stock or modified somehow?

5) Posting photos of the overall engine may help give a better idea of what you got going on there.

If still using the Mercruiser 555 ECM, pretty sure that system isn't going to adapt over with an MSD 6M-2L and MSD Blaster SS type system.

Hello!
The engine is 2007, her S / N is 0W669376
I modified the engine with cams cod. 08-418-8 (comp cams)
tougher valve springs and rocker arms.
I also replaced the air filter with a more open.
I have the opportunity to enrich the fuel through Magnum tuning (maybe)

My ignition system provides for Cam position sensor (hall effect in the original distributor), coil driver, coil, Crankshaft Position Sensor and CME 0501 (Motorola)

the wiring harness is stock.

I must to wait for the photo, but in the meantime we have some more elements to help

Thank you!

you have the stock ECM 555 installed and with the stock tune ??? if so its not going to work period and I am 100 percent about it..

also

Ciao ora e' il momento di venire negli Stati Uniti e votare per Trump

guys do not understand! you can have some information in more?
thank you!

Sorry to be the one to say this But unfortunately with the electronics systems your mechanical Throttle and Shift MERCRUISER 6.2 MPI BRAVO engine model number 4R42027US 'That uses the ECM # 555 was really only meant to be combined with the HVS distributor ignition system as they were a matched system from Mercruiser internally for these engine models. The odds of making the MSD system work are Very 'Very slim to none and chances are very 'very low that someone has attempted to combine the two systems either here on Off Shore Only or any other boating forum that I'm aware of.

Since you're attempting this ignition swap, Just for an open minded general conversation, what sort of issues are you experiencing at the moment?

Also, Are you aware that since you have a Crank Shaft Sensor & CAM Shaft Sensor, The ignition timing adjustment procedure has changed as most know it to be.... The distributor does not get timed by way of using a timing light anymore... 'Rather the distributor needs to be Phased into the proper settings of how the manufacture designed the distributor system to work on certain designed engine models which I can only guess that the MSD system Might or Might-Not be a bit different than the (GM) HVS distributor system....In other words, if the distributor marks are off (and not just where the rotor points to cylinder number 1 at the cap), the engine may not run correctly "Should" everything else you connected wiring wise actually somehow be in normal working order to the Mercruiser OEM electronic system.

This should be the harness you need:
http://documents.msdperformance.com/8877.pdf
This also shows wiring diagram.

I found this looking for the harness + instructions needed for the MSD6A (vehicle) to the 96-2000 Chevy Vortec 5.7 which uses the same distributor and coil your boat has.

Just make sure your 6ML-2 has same wire color coding as the 6A box.

Note: I have not installed one on your type engine (IE: Mercruiser with this ignition / computer system), therefore, all I have done is helped look up parts / diagram for something similar. You must do your own homework to make sure this is correct.

Here's a vid of what it looks on a truck with a 6A,

https://www.youtube.com/watch?v=xLfe0eeQuAY

ECM 555 controls spark and timing the HVS only sends the spark. That's why the HVS has to be phased correctly (cam angle) so it can send spark to correct cyc

Timing is not adjustable for all ECM 555 and of course PCM 555 Mercruisers

guys, thank you very much at all.
My only problem now is just be very rich below 3000 rpm.
Unfortunately I understand that the distributor I have to keep using the original ok ..

The video, however, shows that with the proper connection, I can connect.
The color of the wires can guarantee you that corresponds with 6M 2L. (Thanks very much SB video was important to me)

at this point, since the coil in the video they arrive 2 wires (orange and black), they correspond to the connection to the Blaster SS Coil MSD.
I could connect the white and red wires to the system connector in the correct order, and the orange and black wires to the MSD coil (excluding the original one)
So I would have the unaltered electronic management (coil driver still connected) and the system of "power" modified MSD.
It might work...


ye are satisfied with MSD ignition system ??

Today I made the tests (of course thanks to the video and at your help ..)

the engine seems to start and it sounds like a violin, without any error in smartcraft .. what do you say? I try to go in the water?

the original coil was not removed, so in case of problem I can always return to the original configuration and return to base ..

if all goes well .. the color of the spark plug will give me the final verdict.

http://i63.tinypic.com/v9g0h.jpg

Keeping an opened mind with this project due to the GM truck in the video uses basically the same HVS distributor, coil design and Crank/CAM Shaft Sensor systems which also doesn't require setting the timing rather phasing in the distributor which should be (should of been?) controlled by the GM truck ECM like the 555... It will definitely be interesting to know for sure how it all works out for you. Please let us know and good luck to you.:)

Did you disturb (Move) the original distributor assembly at all during the installation process??? If you did then you'll need to confirm it's back in the correct place before heading out on the water or the engine may perform badly due to just that issue alone vs the added wiring changes done.

I'm happy to be a pioneer of this intervention in the water!
the distributor, has been dismantled and reassembled, of course in the correct position (reference in the distributor line and number 1 piston at TDC).

when you first turn the strobe has scored 8 ° @ 1000 rpm so I would say ok

I will keep you updated!

Good luck and welcome to OSO.

Padraig

Just to ensure you reinstalled the distributor correctly, see if you can open the PDF link and use the general info as an reference guide for proper installation... http://forums.iboats.com/filedata/fetch?id=7001823

Also see page 2 of 3 for just in case added guidance from Mercruiser. http://www.marinemechanic.com/merc/d...fi-nostart.PDF

When you first turn the strobe has scored 8 ° @ 1000 rpm so I would say ok.[/QUOTE]Hopefully the engine is not idling at 1000 RPM is it?? Should be closer to 600 and being an 2007, could also be as low as 540 RPM from original OEM.

Exactly, @ idle, warm 540 rpm

For security, and ceck the ignition phase, initially i look the angle @1000 rpm, when the angle is 8° @ 1000 RPM, I'M SURE IT'S OK.
My project and my cams, at 10° @1000 have a better performance, with a stock MPI system unfortunately i'm obligated @ 8 °.
thanks for the link!

Wondering how this turned out?

hello to all guys! excuse the absence but the work has overwhelmed me!

ok, I tried the rib with the MSD system, I have not the data to make comparison with the original ignition system, I only noticed a lighter color of sparks after the test, the engine seems to be no problem, I have reached the speed maximum of 59.9 kts but I propeller a bit long, and I'll have to to fix.

before the end of December I will give you definitely more data.


http://i63.tinypic.com/sdjj4o.jpg

What water do you boat in?

Como Lake, Italy

n 45°51.511'
e009°21.990'

:)

Double post. Dam.

Looks like a beautiful area. We have been to Italy a couple times. We did not get that far north. There didn't seem to be offshore boats in the area we went to.

68.9 mph nice!

That is a big lake, are there any speed restrictions?

Very nice!

It is a large lake, being the speed restrictions to 28kts, but in winter when the water to be little traffic, the lake is poorly controlled.





Goodmorning everyone.
Unfortunately it is obliged to remove the MSD system, the boat lights up and operating as usual ... but sometimes (for no reason) Motor it dies and smart craft mistake to give "LOST COM".
Sometimes making it hard to leave.

Also I do not understand why MSD does not respond to email for some assistance.

In stock form the Merc HVS has to be phased per spec -- the HVS does not set timing as its just sends spark to the proper cylinder but has to be phased correctly to do so - this is all DONE PER --- ECM 555 stock Merc LOCKED calibrations then in conjuction the stock HVS ,

Stock OEM Marine engine builds some more info = a Bravo 5.7 or 6.2 or 5.0 or 4.3 uses different ECM 555's and also different ECM 555's than an ALPHA outdrive on the same apps and also straight inboard apps uses a different ECM 555 than the other 2 ( Bravo and Alpha)

ECM 555 you can not just cross to what ever engine nor what drive or just an transmission. They are all calibrated per that app.

From the start, I did not see how this was going to work all stock app untouched tune to just change over to MSD ignition set up using a full blown LOCKED stock OEM calibrated ECM 555.

Really can careless what the auto side does with the MSD and their tuning in which is reprograming by even things like Hypertech and so on - boats do not have auto controllers as ECM's. nor reprogrammable systems unless you seek out the 3 people in the USA that are capable to do the unlocking of the ECM and spec tuning per non stock parts installed.

Go back to stock and enjoy your boats - you were not going to gain once of anything changing an ignition set up except a headache.

Beautiful area .i am familiar with it.

I have a ex girlfriend originally from Milan that lives in Bissone on Lake Lugano .

No I am not Italian , also not from Monza.

Monza was the brand of my dad's boat he bought in Miami back in 1972

Lake Como is beautiful, here's a light lunch at Bellagio.......

[ATTACH=CONFIG]565352[/ATTACH]



Good luck with your boat, it sounds very fast for Como!

Thanks all, "our" lake is really a pearl.


For BUP, Thank you for your explanations, at this point to the stoichiometric ratio too fat I have no hope of adjusting?