Anyone ever heard of Mega Squirt EFI?

[xp190]

A good friend of mine showed me this link:

http://www.bgsoflex.com/megasquirt.html

I was wondering if anyone has ever heard of this, I did a search on all forums but it came up empty.

any feedback is appreciated.

xp

[MTI]

Check the performance forum on www.190Revolution.net

[xp190]

not much info about it on 190rev other then that speedtek is making a kit that will cost a fortune and require rebuilding the entire fuel system, personally I think there is a much easier way, and if time and funding allows, I might be able to work it out.

Speedtek claims that there will be a 10-30% power gain, I like those numbers, but I had fuel economy in mind as well.

I guess this is where being a computer scientist will come in handy

xp

[psfred]

The only way to increase power output is to burn more fuel......

Why bother? The system you have works fine, and is a known quantity.

Peter

[xp190]

I'm not really looking for what I will gain from it or not, just looking for a project and I was wondering if anyone tried it.

besides, there is a few things I could improve on.

xp

[Tirebiter]

Originally Posted by xp190

I was wondering if anyone has ever heard of this, I did a search on all forums but it came up empty.

any feedback is appreciated.

xp

Megasquirt is nothing short of wonderful… if you need it.
My first encounter was in 2001 when I put one on a 1972 GTB4 Daytona coupe Ferrari. Heat soak had warped the 46 mm Webbers (a common fault of V-12 engines in Lambos and Ferraris) . I used the old carbs for the ease of installing EFI injectors, the linkage didn’t need modification, and the air cleaner would still function. I had to add a Motronic speed sensor, crank position sensor, OXY sensor, cyl head temp sensor, and air intake sensor using factory Porsche parts. It took two weeks to dial it in with a 5 gas analyzer, a PC laptop, and a chassis dyno. The first time you do a job is always the hardest, eh?
Four replacement carburetors cost $8,500. The complete parts bill for the Megasquirt was under $2,500. Labor was around $10,000. He still drives it and it has only required normal maintenance. We have converted seven carbureted V-12s so far. Last year we converted a 2008 Lamborghini Murcielago to the Megasquirt system and it was almost too easy. Only the Bosch injectors were replaced with higher flow units.
In 2004 they upgraded their unit to give a more precise control of the injector pulse width, timing control including a retard controlled by knock sensors, and CAN capabilities. This allows the use of much higher flow injectors and still has a livable idle.
I converted my 1978 930 in 2006 and discarded the crap CIS system and dinky camshafts for EFI with 935 MFI cams. Starting with 3.5 liter twin plug, single turbo that put out 340 HP, it turned into a fuel guzzling 460 HP.
Several years ago I built a SBC bored and stroked (to 408 CI) with a single Holley 850 double pumper. It put out 538 HP with 530 lbs of torque. With the Megasquirt conversion it put out 640 HP and 580 lbs of torque. It idles @1200 RPM and sounds like a B gasser but it’s very smooth to drive. 6-8 MPG
Within the next year I will install a similar SBC in my 1976 930. With a total curb weight of 2,550 pounds, it should be a fun car.
The new offering from Megasquirt is even more advanced and seems to aim at late model factory computer controlled cars.
I found a little trick that may be useful to those of us concerned with fuel economy. My 1986 911 3.2 liter twin plug gets 16-18 MPG city and 20-22 MPG highway. When I short the barometric cell, the engine thinks it is at high altitude and leans the mix. On the way to Vegas I get 28-30 MPG but with the A/C on, I must keep an eye on the engine heat (oil temp in a Porsche) and the pyrometer.
If you understand how the late model computer controlled cars work, you won’t have too much of a problem using the Megasquirt. I usually commit five different maps to memory and it takes about five minutes to choose and install one.
I have a California smog license and I know just how to use/abuse it .

[Richard Wooldridge]

Here's a link to a guy's site who converted his 1974 450SL to megasquirt:
http://www.mercdjetmegasquirt.britautorepair.com/

Interesting reading...

[MTI]

Wow, somebody dug deep for this old nugget.

[pawoSD]

Originally Posted by psfred

The only way to increase power output is to burn more fuel......

Why bother? The system you have works fine, and is a known quantity.

Peter

Or, to burn the same (or less) amount more effectively/efficiently.

[tjts1]

I'm installing MS into my 93 190e 2.3 right now. I actually ran the fuel pump through the Saab fuel rail for the first time tonight. I should have it running in the next couple of days. Total cost is about $350 and that includes wide band O2 sensor.

[wbain5280]

I'm still in the process of making mine. Money is tight for now.

[pawoSD]

Originally Posted by tjts1

I'm installing MS into my 93 190e 2.3 right now. I actually ran the fuel pump through the Saab fuel rail for the first time tonight. I should have it running in the next couple of days. Total cost is about $350 and that includes wide band O2 sensor.

Is it worth it? The MB system is pretty reliable.....

[xp190]

Oh wow

I came across my own post while looking around for random stuff.

Myself and a friend of mine converted a vw cabby to a 2.0L 16 valve MS managed engine, tuned it with a laptop on the road, the car ran like a charm.

There were a few issues but most of them came from the engine swap not the MS. MS seems to be a very popular choice right now and since the time of my original posting, I decided to leave the benz alone since it would require some fabrication and it runs well the way it is, but I had the entire project planned out at some point.

The guys who put MS together did a real fine job, the CPU running on the system can do a lot more then just manage the engine, and the recent ignition module upgrades make it even easier, you can literally rip all electronics out and put MS in and have it running in a few days.

Depending on what you want to use the car for, you can have multiple timing and enrichment maps saved and selected with a flick of a button, so if you only have one car and want to take it to the track, this is probably the most effective way to go.

I decided to save this project for a porsche which I'll probably buy in my later years since fuel injection offers a lot over carbs and I don't want a new porsche, the older the better lol!.

I'm glad to see MS caught on, but I never thought it would be used on lambos, I always figured that this is one car that would not need improving on.

Oh, and my old benz lives on lol! it's 2009 now and it is still on the road every day and very healthy with a record of dying on the road only once when the alternator quit on me (keep an eye on that rear defroster switch lol!)

Cheers!

xp

[appatula]

Roman uses MS II ver3.0 full EFI and EDIS spark on his turbo M103. Many have criticized him (mostly turbonetics or mosselman purists), but it puts out serious power. I have my MS unit built, waiting for the funds to put together a fuel rail, fittings, and a wideband O2 sensor.

http://www.peachparts.com/shopforum/showthread.php?t=174080

Comparing the original K-Jetronic mechanical fuel injection to A fully electronically controlled efi system with EDIS spark management is apples and oranges. If you have any clue as to the management capabilities of MS II and adjustments through megatune you will truely appreciate how much more eficient and accurate it is compared to even a new stock factory EFI setup on modern vehicles, of course you pay with reliability if you can't tune .

[tjts1]

My MS conversion fired up this weekend.
http://www.youtube.com/watch?v=EdKJawKNU5Q