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Mega Squirt worth it?

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Old 12-18-2017, 09:59 PM   #1
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Mega Squirt worth it?

Hey everyone! Has anyone used the Megasquirt 2 system on their car? Iím considering getting one for my Trans Am which is stock for the moment but I plan on doing a lot of work on it over the course of 2018. If this isnít a good system which one would you recommend to a newbie? Thanks!
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Old 12-18-2017, 11:17 PM   #2
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Re: Mega Squirt worth it?

It's a good system, MS3 allows for more expandibility in the future though.
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Old 12-19-2017, 01:19 AM   #3
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Re: Mega Squirt worth it?

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It's a good system, MS3 allows for more expandibility in the future though.
So the MS3 will work with a pretty much stock car?
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Old 12-19-2017, 05:45 PM   #4
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Re: Mega Squirt worth it?

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So the MS3 will work with a pretty much stock car?
Yep, it can be setup up almost exactly like an MS2, as far as connections go, if you want, but adds in USB connectivity, SD card logging, and a lot of future expand-ability.
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Old 12-19-2017, 09:19 PM   #5
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Re: Mega Squirt worth it?

The megasquirt wont control any emissions functions. Also converter lockup can be an issue. Hard to do with MS2 if you wish it to be ECU controlled. Easier to have converter lockup with the MS3 as it has a native vss input.....But will still need some supporting hardware to emulate stock lockup.
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Old 12-21-2017, 11:46 PM   #6
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Re: Mega Squirt worth it?

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The megasquirt wont control any emissions functions. Also converter lockup can be an issue. Hard to do with MS2 if you wish it to be ECU controlled. Easier to have converter lockup with the MS3 as it has a native vss input.....But will still need some supporting hardware to emulate stock lockup.
Emissions really isnít a issue to me because Iím getting rid of it and I live in a state that could honestly care less so thatís no big issue. What supporting mods would I need to do with the MS3 in order to keep the lockup? I plan on still using my car as a daily after itís rebuilt but I have my Sierra for now so time isnít a issue.
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Old 12-21-2017, 11:54 PM   #7
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Re: Mega Squirt worth it?

And this is probably a really stupid question but is there a difference between the MS3 and the MS3 pro systems? (I seriously have zero experience with EFI systems before buying this car. All Iíve ever owned before that I have tuned has had a carb on it.)
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Old 12-22-2017, 06:18 PM   #8
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Re: Mega Squirt worth it?

Yes, there is a difference between MS3 (DIY version) and MS3 PRO.

Overall capabilities and features remains very much the same, since the firmware they use is nearly identical, the biggest difference is the packaging. The DIY version is in an aluminum case and uses DB37 connectors for it's I/O. It also has the option of being an MS3 base, or an MS3X, the X is when an additional board is added that adds in more I/O over the MS3 base, which adds multiple I/O for ignition and injections outputs, cam inputs, more digital and analog I/O, etc.
The MS3 Pro uses a plastic case and Ampseal connectors, which is more robust than the db37 connectors of the DIY version. The warranty is better with the Pro versions, and is better for vehicles that will live in damp or dusty environments.
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Old 12-22-2017, 09:40 PM   #9
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Re: Mega Squirt worth it?

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Originally Posted by Six_Shooter View Post
Yes, there is a difference between MS3 (DIY version) and MS3 PRO.

Overall capabilities and features remains very much the same, since the firmware they use is nearly identical, the biggest difference is the packaging. The DIY version is in an aluminum case and uses DB37 connectors for it's I/O. It also has the option of being an MS3 base, or an MS3X, the X is when an additional board is added that adds in more I/O over the MS3 base, which adds multiple I/O for ignition and injections outputs, cam inputs, more digital and analog I/O, etc.
The MS3 Pro uses a plastic case and Ampseal connectors, which is more robust than the db37 connectors of the DIY version. The warranty is better with the Pro versions, and is better for vehicles that will live in damp or dusty environments.
That would be perfect here because it gets pretty dry during the summer.
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Old 12-27-2017, 09:22 AM   #10
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Re: Mega Squirt worth it?

I have a MS2 and I love it. Its definitely something you can expect to sink some time in though, so if your looking for a plug and play system I would look elsewhere to be honest. I almost wish i went MS3, after all the money I sunk into it with the two step, AC input and HEI control im past the cost of a MS3. Ive had some issues with the stock ICM so i would suggest going MS3 with a crank trigger and LS coils. I am very happy with it as it sits, MS3 could have just been that much better.
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Old 12-27-2017, 11:04 PM   #11
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Re: Mega Squirt worth it?

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Originally Posted by 86CamaroDan View Post
I have a MS2 and I love it. Its definitely something you can expect to sink some time in though, so if your looking for a plug and play system I would look elsewhere to be honest. I almost wish i went MS3, after all the money I sunk into it with the two step, AC input and HEI control im past the cost of a MS3. Ive had some issues with the stock ICM so i would suggest going MS3 with a crank trigger and LS coils. I am very happy with it as it sits, MS3 could have just been that much better.
Looks like I have a lot to consider 😂
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Old 01-07-2018, 02:46 AM   #12
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Re: Mega Squirt worth it?

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Originally Posted by 86CamaroDan View Post
I have a MS2 and I love it. Its definitely something you can expect to sink some time in though, so if your looking for a plug and play system I would look elsewhere to be honest. I almost wish i went MS3, after all the money I sunk into it with the two step, AC input and HEI control im past the cost of a MS3. Ive had some issues with the stock ICM so i would suggest going MS3 with a crank trigger and LS coils. I am very happy with it as it sits, MS3 could have just been that much better.
This makes Haltech's direct plug-in Platinum Sport GM ECU sound even more attractive to me.

Last edited by FAST LiFE; 01-07-2018 at 02:50 AM.
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Old 01-09-2018, 09:23 PM   #13
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Re: Mega Squirt worth it?

I've been doing more and more with the AEM Infinity 508. Excellent system, does a lot of stuff and does it really fast.
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