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4cylndrfury
4cylndrfury MegaDork
2/10/16 9:55 a.m.

this thread is an example of how to win at life. I love it...

russian
russian New Reader
5/12/16 7:09 a.m.

3.5 years in the making - this ECU debuts at the Lemons race @ NJMP this weekend! Come see it if you are around Philadelphia.

russian
russian New Reader
5/23/16 5:24 p.m.

Well, the car was running, and running, and running. As usual, it broke an axle (that happens at 80% of the races for this car - usually it's the driver side, this time it was the passenger side) but it have finished!

rusEfi is now a race-proven standalone engine control unit.

https://www.youtube.com/watch?v=3xz66oR95F8

paranoid_android74
paranoid_android74 SuperDork
5/23/16 10:02 p.m.

Wow, I'm so happy this thread is in my life now!

russian
russian New Reader
11/3/16 3:25 p.m.

Has been some months... https://www.facebook.com/TeamEmoticons33/ has just finished their 2nd race running this ECU.

And I've just got a new test mule - now it's a 2001 Miata. That VVT solenoid on top of the valve cover is the reason I've transitioned from Neon test mule to Miata test mule. I believe rusEfi is mature enough to use VVT.

Brett_Murphy
Brett_Murphy PowerDork
11/3/16 4:19 p.m.

I somehow think that the picture above is going to wind up on one of those "look what a customer brought in" websites.

Great job so far.

russian
russian New Reader
12/12/16 5:01 p.m.

490 miles / 8.5 hours drive using this ECU

http://www.youtube.com/watch?v=a_0XbZutufU

GameboyRMH
GameboyRMH MegaDork
12/12/16 5:07 p.m.

^You should probably put an epilepsy warning on that.

Edit: Never mind, turns out I have some trippy browser problem

russian
russian New Reader
1/24/17 1:59 p.m.

Progress - this thingy now controls VVT :)

rusEfi VVT first test

also fuel closed-loop correction

rusEfi fuel closed loop

dean1484
dean1484 MegaDork
1/24/17 4:16 p.m.

4cylndrfury
4cylndrfury MegaDork
1/25/17 4:06 p.m.

This thread is truly incredible!

2GRX7
2GRX7 New Reader
1/26/17 9:38 a.m.

Welp, looks like I've found my 2017 Challenge ECU! Great work!

mck1117
mck1117 New Reader
1/26/17 12:58 p.m.

I'm working on a super-cheap challenge optimized rusEFI board--wait about a week. I'm going to attempt a start on version 0 in the next few days.

I'm going for the bare minimum set of hardware to run a sequential ignition V8.

minivan_racer
minivan_racer UltraDork
1/27/17 5:18 p.m.

How well does the neon run with it? I'd be interested in running this on the van and I'm guessing the 2.4 cam/crank sensors are the same as the 2.0 neon.

russian
russian New Reader
1/31/17 6:54 a.m.
mck1117 wrote: I'm working on a super-cheap challenge optimized rusEFI board--wait about a week. I'm going to attempt a start on version 0 in the next few days.

mck1117 delivers: https://www.youtube.com/watch?v=QJFdp2kSeYM

russian
russian New Reader
1/31/17 6:57 a.m.
minivan_racer wrote: How well does the neon run with it? I'd be interested in running this on the van and I'm guessing the 2.4 cam/crank sensors are the same as the 2.0 neon.

How it runs depends how well you tune it - there is definitely some skill in setting the timing and fuel tables.

Here's the Neon on a dyno but we have since parted ways, Neon had to go so that I can park that VVT Miata in the garage.

https://www.youtube.com/watch?v=V_tjdOa_ESo

russian
russian New Reader
12/2/18 5:13 p.m.

Who wants to guess what I am trying to do on my NB2 Miata test mule? No, it's not sequential injection.

Something is special about these four wire coils, do you know what? :)

 

Brett_Murphy
Brett_Murphy UltimaDork
12/2/18 8:50 p.m.

Uhhh... I am stumped. They should be on top of the spark plug?

RXBeetle
RXBeetle Reader
12/2/18 9:41 p.m.

"Compression Sense"?

edit, SAAB combustion detection system!!!

Mykk
Mykk New Reader
12/3/18 7:23 a.m.

I use a similar Arduino Mega 2560 based ECU called Speeduino.  It's 4 injector driver channel outs and 4 ignition logic outs to I run my BMW v8 in semi-batch fire and waste spark.

 

 

 

 

 

 

First fire up and test drive:

 

https://www.youtube.com/watch?v=CRjPw6jeFoU

 

I'll be using the same ECU on my BMW powered T-bucket but maintaining the coil on plugs:

 

 

 

russian
russian New Reader
12/10/18 5:26 p.m.
RXBeetle said:

"Compression Sense"?

edit, SAAB combustion detection system!!!

Bingo!

Ion Sense to be more precise - Saab loved to use spark plugs as cylinder pressure sensors. Nowadays Mazda seems to use this as part of Skyactiv http://www.mcx5.org/ion_sensor-1281.html and 
BMW used it on v10 M5/M6 engines https://www.newtis.info/tisv2/a/en/e60-m5-lim/wiring-functional-info/power-train/engine-electronics/ignition/ionic-current-control-unit-bank-2/1qP23f6

These coils do not fit on my miata head so now I am waiting for Ferrari spark plug extenders... Yes, Ferrari has spark plug extenders :) Will post if I get any success.

 

alfadriver
alfadriver MegaDork
12/10/18 5:36 p.m.

In reply to russian :

We used ionization misfire detection on the '99 Aston Martin v12.  Worked pretty well. 

There are some good SAE papers about the subject out there.

russian
russian New Reader
12/10/18 9:40 p.m.
alfadriver said:

In reply to russian :

We used ionization misfire detection on the '99 Aston Martin v12.  Worked pretty well. 

There are some good SAE papers about the subject out there.

Right, but in my case I am trying to go the lazy route - I am trying to use Saab magic coil-on-plugs (it's nice that Saab moved away from the cassette) and, more importantly, that self-contained Saab signal processing box - my next order of business is getting my engine to knock so that I can see a difference in signal processing box output.

 

russian
russian New Reader
12/16/18 10:29 p.m.

first million dollar question: why do we sometimes see one pulse per cylinder while sometimes we see two pulses per cylinder?

 

https://www.youtube.com/watch?v=rBoetgzqU00

 

 

 

 

alfadriver
alfadriver MegaDork
12/17/18 7:09 a.m.

I *think* the second pulse is to run the ionization system.  

In terms of normal operation, there are times that we send a second pulse to the coil, but that's entirely generated by the ECU, which I betting that you are not doing with your module.

So it's probably the system working.  To run the ionization system, you need to run some voltage though the flame (flame being conductive, seeing the pattern of how it conducts is exactly how you detect the flame information.  The odd thing to me, though, is that the second pulse is pretty far from the first one- which would be pretty well after combustion would take place. But it *could* be part of that.

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