Sneak Peek from LPE

[FU]

Originally Posted by Scott Clark

Huge thanks to Graham for trusting my team with this extremely unique project.

May I ask what company you represent Scott ?

[-=Jeff=-]

Originally Posted by FU

May I ask what company you represent Scott ?

Frank, I think Scott is from Megasquirt (if I recall right from Graham's presentation)

[Scott Clark]

I'm a Calibration Engineer for DIYAutotune.com. We design and sell commercial versions of Megasquirt-based ECUs for projects like this. I was lucky to stumble onto this project while visiting Graham a few months back.

[-=Jeff=-]

Originally Posted by Scott Clark

I'm a Calibration Engineer for DIYAutotune.com. We design and sell commercial versions of Megasquirt-based ECUs for projects like this. I was lucky to stumble onto this project while visiting Graham a few months back.

Scott,

There was a project a few years back for a megasquirt ECm replacement for the current LT5. Is this the ECM you used here?

I am curious if there is a solution that will currently work for our cars that could replace the ECM. One of the things that I am hoping to see in a replacement is the communication with the CCM/BCM so everything works as it should.

Another question is our LT5 currently uses what seems to be an intelligent Ignition Control Module. the Module uses a reluctor located on the Crank with 9 notches (9th helps to find #1) I would really like to see a full replacement ECM and ICM that communicates with the CCM/BCM.. Were you part of the group working on the LT5 replacement ECM and were these other pieces in the scope of the project?

[Scott Clark]

Originally Posted by -=Jeff=-

Scott,

There was a project a few years back for a megasquirt ECm replacement for the current LT5. Is this the ECM you used here?

I am curious if there is a solution that will currently work for our cars that could replace the ECM. One of the things that I am hoping to see in a replacement is the communication with the CCM/BCM so everything works as it should.

Another question is our LT5 currently uses what seems to be an intelligent Ignition Control Module. the Module uses a reluctor located on the Crank with 9 notches (9th helps to find #1) I would really like to see a full replacement ECM and ICM that communicates with the CCM/BCM.. Were you part of the group working on the LT5 replacement ECM and were these other pieces in the scope of the project?

This is that same ECU, yes. I started with DIY in January this year so the project was completed before my tenure.

I understand that there are "some things not communicated to the BCM" but am not exactly sure what those are, I will ask the guys at HQ if they can elaborate.

Or if anyone here has more input about "what's missing" please speak up.

thanks!
-Scott

[-=Jeff=-]

Scott,

there are some scattered threads on this site regarding the project, but nothing with a final list of what worked and what did not. I heard the MS ECm played nice with the CCM, but then I hear that it did not.

Anyway, what I was hoping when this was initially released was:

-Full compatibility with the CCM
-Option to eliminate the Current DIS Module for maybe CnP?

But I have to admit, hearing that Prototype running was pretty damn awesome

[Scott Clark]

The ICM is nothing to be scared of, it's a good piece of electronics. But it's very easy to eliminate it and run whatever coilpacks you choose.

You'd simply set up our ECU to read the crankshaft position sensor instead of the RPM signal coming off the ICM. Our ECU is already reading the cam position for firing sequence information. So that part is almost a no-brainer.

(For what it's worth: the LT5 ICM is set up to "appear as an HEI module" to any ECU interfacing with it)


I'd need links or details on what's missing with the other parts. if anyone can point me in the right direction I'd be happy to follow up.

The sounds that the LT5 2.0 made on the dyno were very unique!! Graham's stories behind the development of both projects were spellbinding. This all happened during the era when Talent trumped Marketing, a time long gone now.

[-=Jeff=-]

Originally Posted by Scott Clark

The ICM is nothing to be scared of, it's a good piece of electronics. But it's very easy to eliminate it and run whatever coilpacks you choose.

You'd simply set up our ECU to read the crankshaft position sensor instead of the RPM signal coming off the ICM. Our ECU is already reading the cam position for firing sequence information. So that part is almost a no-brainer.

(For what it's worth: the LT5 ICM is set up to "appear as an HEI module" to any ECU interfacing with it)


I'd need links or details on what's missing with the other parts. if anyone can point me in the right direction I'd be happy to follow up.

The sounds that the LT5 2.0 made on the dyno were very unique!! Graham's stories behind the development of both projects were spellbinding. This all happened during the era when Talent trumped Marketing, a time long gone now.

Yes, I agree.. I did notice the ICM was designed to look like an HEI Module.. Which to me helps.. The concern is if the current ICM dies/ breaks whatever, with the limited replacements and high cost of them due to that, I am looking for a contingent plan. Do you know what the current cost is for the MS replacement for our cars?

SO it sounds like your ECU will have to issues with the extra pulse from our Crank sensor?

[Scott Clark]

Originally Posted by -=Jeff=-

Do you know what the current cost is for the MS replacement for our cars?

SO it sounds like your ECU will have to issues with the extra pulse from our Crank sensor?

We have a really robust crank position decoder. If the current setup can't be configured to make it work, it's usually a simple code change to fix. I'm pretty sure it'll work fine with the existing crank trigger though. Once you have that working, then you can run LS coils sequentially, or really whatever ignition you like. Even a belt driven distributor.


I was told the current ECU is around $2500. Graham and the guys are working on us for a simpler version that costs much less though. What we have right now is a full function standalone that comes with features like traction control, two stages of progressive nitrous controls, boost control, launch / 2 / 3 step functions, and high speed onboard datalogging (among a long list of others, seen here www.ms3pro.com). It's competitively priced compared to the other full function standalones, but admittedly overkill for this application.

[-=Jeff=-]

Yes I agree on overkill for this App.. I have a 1990 so out of those options.. I like the datalogger.. that is about it.. LOL

Thanks for all the info