Toyota Powered VL Calais

[HQ355]

My spartan was $135 all up and took over 5 weeks to get here, then 2 months later he brings out the new one. I'm very happy with mine and doubt il update unless I need to

[Holden202T]

yeah at that price I will be getting a Spartan 2 for the Bedford asap

[Jayme]

ill have spartan2 - LM2 - techedge dyno wideband logs up not long after I get mine very keen.

[VL400]

Chucked the LM1 in today, and swapped the MTX-L sensor to a brand new one to get stable readings (have previously known that my 2 MTX-Ls are useless on anything but newish sensors).

So in the attached log I have...
Drivers Side - MTX-L
Passenger side - LM1 and Spartan V1 (bungs are slightly offset and around 50mm apart)

This setup was to directly compare the LM1 and Spartan. Will swap the Innovate widebands and get another log. In the last minute of the log I used mode 4 commands to set the AFR.

Wideband.zip

(174.78 KiB) Downloaded 420 times

[VL400]

Still adding a few things to 11P and playing with the tune. One of the recent things was to try and soften the light throttle shifts and speed up the high load shift. Softening was easy, just change the code/cal so the PCM can use the force motor output for the Toyota accumulator back pressure solenoid. Speeding up the luxury barge gearbox was trickier, other than getting a modified valve body. So added some multi stage torque management code. It now detects the shift and can adjust the timing in 3 stages during the shift. At WOT it has cut over half a second off the shift time. This is a light throttle shift that actually softens things up as the engine loses torque during the shift....

torque.png (48.9 KiB) Viewed 5251 times

The aqua spark advance shows the 3 stages, stage one starts at a configurable time after the shift is commanded by the PCM, it ends when the RPM begins to drop, stage 2 and 3 are also configurable times. Also does fuel and/or spark cut during the middle of the shift in stage 2


And last week decided it was time to get stuck in to the spark. So built up this board that has been sitting waiting for over 2 years

600_6603.JPG (249.19 KiB) Viewed 5251 times

It uses the same filter chip as the festy knock board (which I had been using). I wanted to experiment with knock windowing and variable thresholds/gains with respect to RPM. The board gets the RPM signal from the EST (PCM spark output to the ignition module) and monitors when it goes low to fire the spark plug. Threw some code together for the AVR, and an XDF for making adjustments with this...

XDF.png (14.98 KiB) Viewed 5251 times

Can set the RPM break points to suit the engine, adjust the gain for the sensor, the INT is an integrator time constant, wait is in crank degrees from the EST fall and defines the window start, window is the sample period in crank degrees when the knock module is checking the sensor and threshold is the voltage output of the knock filter chip.

After some changes to the knock settings I think it is working ok. Top monitor is the ECU, RPM in red and knock counts in dark blue. Bottom is the knock module, red is the threshold, green is the sensor output after processing and blue when knock is sent to the PCM ...

ECU and Module.png (118.23 KiB) Viewed 5251 times

Have puled some more spark out and will see how things go tomorrow.

[Holden202T]

love it

question, to log that knock module does that require using the usb port on it or something or is it intergrated into the normal data stream some how ?

[vlad01]

would be awesome if it had audio output for headphones

I found the stock system too sensitive to something that wasn't even there, and not picking up where there was mechanical noises that sounded similar to knock.

Im sure this allows way better fine tuning but verifying with your own ears helps a lot!

[VL400]

love it

question, to log that knock module does that require using the usb port on it or something or is it intergrated into the normal data stream some how ?

It uses the USB for logging and programming the knock board, but it could be made to have 8192 ALDL and logged together with the PCM (its currently ALDL frames but at 38400 baud for some extra speed).

would be awesome if it had audio output for headphones

I found the stock system too sensitive to something that wasn't even there, and not picking up where there was mechanical noises that sounded similar to knock.

Im sure this allows way better fine tuning but verifying with your own ears helps a lot!

Could probably still hook up some sort of amplifier. The knock IC is a band pass filter and some other functions, but its not a very sharp roll off from what I could test. Knock ears would still be good and also let you set the board up, I ended up going for a drive with 10% extra fuel and over 5deg spark pulled out to try and ensure it was setup with no knock.

[vlad01]

I found the stock system is all over the shop in readings.

I have been tuning that guy's VP that posted on here that had ignition issues.

on his engine there was so much false knock it wasn't funny. had to set the ignore table up to 200 counts and still trips a little here and there. its got a bigish cam on stock 8.5 CR and its a pretty rattly old engine with over 200k.

Im thinking of disabling it all together.

That Gemini with pretty fresh race engine Biggvl and I tuned showed false knock and it was as quiet as a mouse through the knock ears, also failed to pick up actual knock Grrr. stupid factory system

[immortality]

That's very interesting.

The L67 we had on the dyno seemed to be showing false knock. No matter how much timing we took out it always showed knock retard at exact same point/amount in the rev range.

We limited the total timing as I don't have knock ears and wasn't keen to push things to much.