[Success Story] Bulgarian miata with FE3 #61

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dexter_lab
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Joined: Sun Feb 02, 2020 8:01 pm

Bulgarian miata with FE3 #61

Post by dexter_lab »

Greetings,
I had already presentment the car in the Hello tread. Here will post progress of running the car with MRE. Summary
Miata (MX-5) from 2002 grey :)
nowadays with FE3 engine from KIA Sportage 2000. Engine was rebuild with stock parts. I want to keep the original ECU, thus I have to source similar box and connector. Looking at junk find out that for mazda 232 box look similar. I took one for 7$ and see pics after
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AndreyB
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Re: Bulgarian miata with FE3

Post by AndreyB »

Please upload your tune to https://rusefi.com/online/ :)
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dexter_lab
Posts: 39
Joined: Sun Feb 02, 2020 8:01 pm

Re: Bulgarian miata with FE3

Post by dexter_lab »

Of course, just to put the top of the box and power it. I will do it
dexter_lab
Posts: 39
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Re: Bulgarian miata with FE3

Post by dexter_lab »

some work in progress during the weekend.
Did close the cover, and it was still working :)
manage to mount to my test bench, there are several things I wan to share with you.
- my crank/cam signal is generated by an Atiny45 and is 36/1 on every 2 revolutions there is one ping from the cam. what I had noticed that if I let "trigger"in tuner studio to be only crank, I have one value for rev/min if I include the signal form cam it almost double the revs. Have to test on real car.
-I manage to attach to my test bench: the MAP, the injector, the idle valve, and one coil with igniter. when rum for the fist time, the ground was so bad that it disconnect the ECU from TS. I change the ground of the spark plug to be the common "chassis" and connection to TS was stable. But it loose sync ever second or two (I have to check if something with my simulator)
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AndreyB
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Re: Bulgarian miata with FE3

Post by AndreyB »

dexter_lab wrote:
Mon May 18, 2020 5:39 am
- my crank/cam signal is generated by an Atiny45 and is 36/1 on every 2 revolutions there is one ping from the cam. what I had noticed that if I let "trigger"in tuner studio to be only crank, I have one value for rev/min if I include the signal form cam it almost double the revs. Have to test on real car.
Please post your tune. Is this "double rpm" happening without any changes to the tune, without changing anything in the settings?
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kb1gtt
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Re: Bulgarian miata with FE3

Post by kb1gtt »

Do you have some kind of insulation under the PCB? That looks like it's really close to a short if it touches the back plate.
Welcome to the friendlier side of internet crazy :)
dexter_lab
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Re: Bulgarian miata with FE3

Post by dexter_lab »

yes I have. some thermal pads for TO220 transistor package (under mosfet for voltage regulation)
dexter_lab
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Re: Bulgarian miata with FE3

Post by dexter_lab »

Ignition alignment

In order to setup properly the ignition advance MRE need to know where is TDC after against marking wheel on the crank. In my case 36/1 teeth. Manually turn the engine to find TDC with a stick in 1st cylinder. the result is on the pictures, I have almost 15 teeth after missing one.
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In order to confirm this, I did the following setup in TS to fix the ignition advance and keep fire event only on 1st cylinder
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At first attempt with timing gun (DIY with 3 LED and 9v battery) marking on the crank pully are exactly on hall sensor. In order to get the mark on T mark over engine block I had to change Trigger Angle Offset(deg) to almost 150deg (because each tooth is 10deg)
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Now markings are right on T mark, confirmed with timing gun and Matthew Kennedy (thank you man)
dexter_lab
Posts: 39
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Re: Bulgarian miata with FE3

Post by dexter_lab »

We had an event. one of the first successful firing of the rebuild engine
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AndreyB
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Re: Bulgarian miata with FE3 #61

Post by AndreyB »

Congrats, that's a great event :)
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dexter_lab
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Joined: Sun Feb 02, 2020 8:01 pm

Re: Bulgarian miata with FE3 #61

Post by dexter_lab »

I am still alive :) almost one year later - no much progress
Image
Hope to write here more often.
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dexter_lab
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Re: Bulgarian miata with FE3 #61

Post by dexter_lab »

wires - done
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dexter_lab
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Re: Bulgarian miata with FE3 #61

Post by dexter_lab »

not all injectors are created equal
here is a picture of elaboration process
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then those "dark green" chines specimens are about to be removed from the rail, however one of them already (few test run) had prostate problem end leaking from time to time
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dexter_lab
Posts: 39
Joined: Sun Feb 02, 2020 8:01 pm

Re: Bulgarian miata with FE3 #61

Post by dexter_lab »

Project is operational :) yesterday I pass the MOT. Today I "broke" it :). While in boost one of the T clamps did not manage to hold the pressure. Lucky me it is accessible without removing the bumper. More pics sooon
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MRE is the best, the car is drawing black lines on the asphalt when in boost
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AndreyB
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Re: Bulgarian miata with FE3 #61

Post by AndreyB »

dexter_lab wrote:
Thu Jul 15, 2021 1:56 pm
MRE is the best, the car is drawing black lines on the asphalt when in boost
Any chance you can make pics or better a youtube video of those black lines on the asphalt when in boost? pretty pretty please!
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

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