mr.nova

Well juss pulled the trigger on a micro from efi source I hope it works as well as there customer service would recommend them to anyone. Running a turbo'd 5.3 with a th400 so should work great I hope...any input on the micro would be great, I ve search functioned it about a million times.

denmah

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check out my signature

denmah

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ive used it on a few cars, 58x and 24x cars, making over 600whp and going 9s

Mike (oldgold) is using it right now making 860whp

OldGold

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Yep, running the Micro on my car with the first LS harness made. It is an easy and effective system. I have many tunes if you are in need of one, as does Matt.

Mike

Twin turbo c5

I ran microsquirt on my fairmont for awhile it ran awesome and for the simplicity and money you can't beat it.

aknovaman

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Bingo.

It really works, Plain and simple.

Plus I just had to comment as a user and did not want to be left out of the group.

70ssclone

Can't wait to wire mine up in the chevelle should work good and it already has an ls turbo base tune

mr.nova

Ya can't wait either based my whole build off of what you guys accomplished. Hoping first of summer have if running still acquiring parts, just got my ls9 gaskets today sure are pretty.

elkydragger

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I would like to do one on my dragster instead of an ms1/6012 but I have Bosch low impedance 160s and already have the 6012. One harness one box and less weight. I wonder if anyone else has been in the 6's with a megasquirt or microsquirt?

aknovaman

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I have run mine up the 24k RPM on my test bench with no problems like dropped ignition pulses, etc. it is very fast as it only has fuel and ignition to handle, not trans, diagnostics or accessory systems to continuously monitor and adjust.

yenkomike

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bought the micro from efisource and built my harness myself. this is my first efi build sence my old gn,s and there is a huge difference but using denmah,s build thread and an old harness it is up and running. love it so far

love the customer service with efisource. I had an issue with my engine having a weak spark on 4-7 and called mike he said send it in and he whould do a resistor change and it whould run great. he was right. fast turn around and the car starts and runs like it should . with the cars I build I will always run a 400th or powerglide . so I don't see ever needing anything else.

if you buy one id use efisource with a denmah tune there is just no easier way to get the car running and start learning to tune it. JMHO.

elkydragger

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How long are your coils lasting in wasted spark? I have two sets of heatsink truck coils and mine would only see track use but will spend the majority of time above 6500 rpm. I was thinking of selling my 6012 and using the ms1 extra with wasted spark coil drivers and low z injectors from efi source. They are only 475 on ebay and it comes with an 8 ft harness.

yenkomike

iTrader: (2)

mine has not ran long enuff to give you any feedback but I don't think it will hurt them much. there is a ton of factory cars that run in wastespark including buick gn's. different coils but they live a long time.

I think you can run a micro with a low z injector driver for about the same $$$ but it will run fuel as well.

aknovaman

iTrader: (7)

Coil life is not an issue as the Micro puts out the same pulse as the factory PCM to run the factory coil's internal driver circuit. Wasted spark does not put any load on the coil as it is not trying to fire a spark on the exhaust stroke with zero compression same as in free open air (zero load). Ford has used wasted spark for years as well as other OEM Mfg's.

elkydragger

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From what I understand, the manufacturers that use wasted spark all have coils that are designed to be used that way. ie 4 & 6 coils per pack all isolated with special goo and designed with a heavier duty cycle. I was just curious of the longevity of the heat sink coils at double their designed duty cycle at 6500-7500 rpm. I don't expect to put more than 25-30 miles per year on my coils. I like the idea of one box controlling the engine. I would rather be able to run my injectors straight off the box. I could use a driver or resistors but that is just something else that can fail. I am a k.i.s.s. Kind of guy.

elkydragger

iTrader: (7)

I guess I could even sell my two sets of coils and buy 2 4coil wasted spark packs. I have to run remote mounted coils anyways.
On a side note, since I am running filled block and heads, can I get by without a coolant temp sensor or am I screwed there? Not sure how crucial that reading is to the tune?

yenkomike

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it uses the coolant temp for cold start enrichment and cold start timing advance. you could disable them but im not sure how it will start . do you run any water at all? if so you could get it in the water any place and it whould still work.if not you might install it in the oilpan .

aknovaman

iTrader: (7)

If you don't want to run any temp sensors, then just zero out the modifier tables in micro.

Put in a dummy 100 ohm resistor to simulate a temperature. Connect to micro see what the temp gage reads, then zero out the whole table. Kind of hard to describe.

elkydragger

iTrader: (7)

I get what you are saying. I thought about using oil temp instead of water temp. Or I could use dummy resistors to manipulate the temp reading. Thanks!

stevieturbo

There would only be downsides to not using factory style coils. They are compact, basically free, very powerful, and lead routing is usually easy even if you do move them.

Moving to 4 tower style coilpacks would be a stupid thing to do

As for temperature. It would still make sense to monitor engine temp somehow if only for safety reasons.