mega squirt walkthrough

jazig.k · #1 (**permalink**) 05-13-2008, 08:43 PM

can anyone point me towards a 'walkthrough' for installing a megasquirt into a 3.0lt 75 please.
other than mega squirt, is there a better way of getting rid of the
AMF?

thanks

**Tifosi** · #2 (**permalink**) 05-13-2008, 10:06 PM

SDS and Autototronic are a couple of options.

More pricey as they are complete setups though.

There's several others also, but those two came to mind first.

**kredden** · #3 (**permalink**) 05-13-2008, 11:17 PM

Take a look here:

ALFAGTV6.COM ~ View Forum - MegaSquirt Fuel Injection

I put an MS in my 3.0L Verde and got it idling but didn't have time to further tune it before my track events started up last year so I removed it and haven't gotten around to putting it back in yet. Currently building a 3.0L with S Pistons and more aggressive cams and eventually headers. Plan on putting the MS in again once the engine is broken in so I can get rid of the AFM.

Kevin

slyalfa · #4 (**permalink**) 05-14-2008, 12:45 PM

there is the post I did for a VEMS install
VEMS Install on my verde

**danyl** · #5 (**permalink**) 05-14-2008, 07:32 PM

I am going to install on in my 200hp 1987 Veloce within the next few months. I've got a thread "Danyl's Yellow Spider" I should be posting my success and failures with the system come August.

I've already read the "MegaManual" a few times through. It seems fairly straight forward for the 2.0 L engine.

I did some considerable research and decided it worth the try. The Autronic looked like my next best choice, but the price difference is substantial.

Daniel

Alfajay · #6 (**permalink**) 05-14-2008, 07:57 PM

Daniel:

I look forward to reading about your project. I too have read the MegaManual, and agree that it seems straightforward. The biggest challenge with an Alfa would be the induction system. Do you plan to use a modified Spica manifold, or Weber-style throttle bodies bolted to a carburetor manifold? The Spica route seems much cheaper, though no one has published much on what type of injectors would fit a bored-out Spica, will provide a workable spray pattern, and of course, have the correct lbs fuel/hr rating.

You may not be prepared to answer this until August when your project gets underway.

**danyl** · #7 (**permalink**) 05-15-2008, 12:44 AM

Not meaning to hijack this thread, but I have already made a plan thanks to considerable input from many on this web site.

The SPICA is a very viable option. Many people have gone that route. The Bosch system apparently is improved dramatically with Megasquirt, but is still limited by the manifold and throttle body size. Msiert's Black Spider uses some really exciting individual throttle bodies. That's what I'm shooting for. I'm going to install my Megasquirt on my existing Bosch system first, get the bugs out, and then build the ITB system and re-map the megasquirt. This way I take the project one step at a time.

Now back to our regularly scheduled programming...

bcal · #8 (**permalink**) 05-15-2008, 04:20 AM

There is no real walkthrough with MS because everybody takes a different path.

If you stick with the stock hardware it should be pretty straight forward except for the fact that you need to allow for a flyback circuit due to the low impedance injectors. Or you can just use in line resistors.

EDIS6 ignition would be a worthy and relatively inexpensive addition.
Plus a wideband O2 sensor to make tuning easier.

The above is the way I'll be going when and if I get around to replacing the 4 banger with a V6.

180OUT · #9 (**permalink**) 05-15-2008, 04:11 PM

Quote:

The biggest challenge with an Alfa would be the induction system. Do you plan to use a modified Spica manifold, or Weber-style throttle bodies bolted to a carburetor manifold? The Spica route seems much cheaper, though no one has published much on what type of injectors would fit a bored-out Spica, will provide a workable spray pattern, and of course, have the correct lbs fuel/hr rating.

ToonRboy · #10 (**permalink**) 05-29-2008, 10:59 AM

Hi Jazig,

Try this read by Steve Rosser Building a Megasquirt

Peter Web was another Alfa Pioneer with the Megasquirt back in the day. Might want to try a couple of searches that way as well.

Good luck & don't forget to post your results,

flaatr · #11 (**permalink**) 07-15-2008, 02:11 AM

Quote:

Originally Posted by ToonRboy

Hi Jazig,

Try this read by Steve Rosser Building a Megasquirt

**kredden** · #12 (**permalink**) 07-23-2008, 05:59 AM

Works for me. That is the article I used as a reference when building my MS.

alfagtv6.com MegaSquirt Article

Kevin

UngaWunga · #13 (**permalink**) 11-24-2008, 06:28 AM

Speaking of throttle bodies... any thought to using motorcycle throttle bodies? There's plenty of fuel injected motorcycles these days, with most of them running between 750cc and 1000cc inline 4s. The diameter to the throttle bodies should work well on a 2000cc inline 4.

bcal · #14 (**permalink**) 11-24-2008, 11:19 PM

Quote:

Originally Posted by UngaWunga

Speaking of throttle bodies... any thought to using motorcycle throttle bodies? There's plenty of fuel injected motorcycles these days, with most of them running between 750cc and 1000cc inline 4s. The diameter to the throttle bodies should work well on a 2000cc inline 4.

ToonRboy · #15 (**permalink**) 11-25-2008, 08:13 AM

Quote:

can anyone point me towards a 'walkthrough' for installing a megasquirt into a 3.0lt 75 please. other than mega squirt, is there a better way of getting rid of the AMF?