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> My MicroSquirt Install
RJMII
post Jul 21 2008, 12:11 PM
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Jim McIntosh
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Glad to see someone doing this! You going to do a whole progress follow along thread here?

(IMG:style_emoticons/default/popcorn[1].gif) (i hope this the right emoticon for wanting to watch along...)
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retrofit
post Jul 21 2008, 01:03 PM
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(IMG:style_emoticons/default/driving.gif) Looking forward to taking this for a test drive...
Allen
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jgara962
post Jul 21 2008, 02:47 PM
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Looks like a cool project Mark.


What are some of the benefits you expect to see from this? Smoother running? Better mileage? More power!!?
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Dr Evil
post Jul 21 2008, 06:51 PM
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I'd love a 6cyl version (IMG:style_emoticons/default/smile.gif) Nice job man (IMG:style_emoticons/default/thumb3d.gif)
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TimT
post Jul 21 2008, 07:33 PM
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Microsquirt cant do a 6 cyl. It only has two ignition and two injection drivers.
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Rotary'14
post Jul 21 2008, 08:50 PM
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QUOTE(TimT @ Jul 21 2008, 06:33 PM) *

Microsquirt cant do a 6 cyl. It only has two ignition and two injection drivers.

MicroSquirt can do 12 and 8 cylinder cars,,, I see no reason why it can't do a flat 6.


If you use the harness that's supplied with the MicroSquirt, and add to it, source a modern resistor block from a dismantler, one can still use the original injectors and save about a $800but it wouldn't be as plug and play as jkeyzer's harness.

-Rob
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Dr Evil
post Jul 21 2008, 09:26 PM
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Why cant you batch fire a 6 like the 4 does?
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Brian_Boss
post Jul 21 2008, 09:49 PM
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Stock 911 Carrera Motronic batch fires the injectors with only 2 drivers. Seemed to work OK on my '87. (IMG:style_emoticons/default/wink.gif)
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Dr Evil
post Jul 21 2008, 09:55 PM
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QUOTE(Brian_Boss @ Jul 21 2008, 11:49 PM) *

Stock 911 Carrera Motronic batch fires the injectors with only 2 drivers. Seemed to work OK on my '87. (IMG:style_emoticons/default/wink.gif)


Tis what I am thinking (IMG:style_emoticons/default/smile.gif)
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TimT
post Jul 22 2008, 02:09 AM
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Batch firing injectors is fine... The ignition is where the microsquirt falls short. We have built a bunch of /6s w/o distributors... so I kind of forget that distributors still exist (IMG:style_emoticons/default/dry.gif)

We like to use waste fire ignition for the /6s we build and you can get a sort of semi-sequential without a cam sensor with some systems, That takes 6 drivers minimum. So yes I spoke off the cuff because the microsquirt cant handle the applications we typically set up.

Revisiting the microsquirt site, you can do a 6 using a distributor, and batch firing the injectors. If the software could let you reassign one of the injection drivers to be an ignition driver the many more possibilites open up.

After all I have a 900hp 935 clone in my stable that has batch fired injectors (and waste spark ignition)

Sorry for the confusion... I still plan on building a car with either microsquit or megasquirt at some point, justs to see what its all about...We've had all the big name EFI systems come through the shop in the past few year... I still like to see what else is out there..
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type47
post Jul 22 2008, 07:56 AM
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QUOTE(McMark @ Jul 20 2008, 04:01 PM) *


MAP: $64



not able to figure out the MAP reference. what is the "MAP"?
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Rick_Eberle
post Jul 22 2008, 10:13 AM
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QUOTE(type47 @ Jul 22 2008, 11:56 PM) *

not able to figure out the MAP reference. what is the "MAP"?


It's the sensor that reads:

Manifold
Absolute
Pressure
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McMark
post Jul 22 2008, 11:33 AM
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QUOTE
What are some of the benefits you expect to see from this? Smoother running? Better mileage? More power!!?

The number one reason is the customer wanted FI. (IMG:style_emoticons/default/wink.gif) But I expect all of the above, or at least equal carbs. I had carbs on this motor for about a week and it's a powerful little motor, but the carbs were never quite 100% (I didn't want to buy a bunch of jets for a temporary carb install). I'm looking forward to how this motor is going to feel with a dialed in FI. I'm planning on doing a 'seat-of-the-pants' tune and then going to a dyno shop to see how close it was and how much more can be gained by empirical tuning.
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RJMII
post Jul 22 2008, 11:46 AM
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Megasquirt II and Microsquirt can be configured to use the ford EDIS (electronic Distributorless Ignition System) to use coil packs and the wasted spark setup.

The wasted spark setups that you (TimT) are using, are they built into the systems?


McMark, I'm going to venture to guess, since you are wanting stock configuration look, that you are using the distributor and going off of the tach sending wire for a signal to the Microsquirt?
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TimT
post Jul 22 2008, 07:01 PM
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QUOTE
he wasted spark setups that you (TimT) are using, are they built into the systems?


Not so much that they are built into the system in that we configure the ECUs we use (Haltechs) for waste spark. It is all in the software configuration. We have been having a pretty good run lately installing about one per month E6X systems.

Dont want to hijack McMarks thread to much but here are some installs... We usually use Bosch 3 channel ignition modules..

3.7L Hi-output /6

Attached Image

coil board set up

Attached Image
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TimT
post Jul 22 2008, 07:08 PM
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I happen to have the engine of my car out while I regear the transmission ( yet again (IMG:style_emoticons/default/dry.gif) )

I used a Link ECU and the ignition module they supplied... this was another EFI system test....and yes Link is a good system... especially the G3 ecus... but I digress.

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TimT
post Jul 22 2008, 07:09 PM
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In this pic you can see the TPS, IAT, CAS, and if you look really hard the knock sensor

Attached Image

Sorry bout the hijack Mark (IMG:style_emoticons/default/beerchug.gif)
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McMark
post Jul 22 2008, 11:53 PM
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No problem. All good info. (IMG:style_emoticons/default/thumb3d.gif)

I have more pictures to post tomorrow.
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McMark
post Jul 23 2008, 12:23 PM
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Here are some more pictures of the installation as it progresses.
Attached Image
Attached Image
Attached Image

Here is the ECU mount. I forgot to take a picture of the mounting plate. It's a 5" x 5" square with two holes at the top to mount to the battery tray and four holes halfway down to mount the ECU. Nothing fancy.
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ClayPerrine
post Jul 23 2008, 01:08 PM
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Really cool work.

(IMG:style_emoticons/default/idea.gif) Now if you really want a STEALTH system, take the ECU and put it in a gutted D-jet ECU case, and put the MAP sensor inside a gutted MPS. (IMG:style_emoticons/default/biggrin.gif)


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