Search found 89 matches

by mtmotorsport
Tue Jan 02, 2024 2:58 am
Forum: You and your build
Topic: Maserati Coupé Tipo M138
Replies: 4
Views: 39350

Re: Maserati Coupé Tipo M138

Putting a proteus on that engine, albeit not in the Coupe anymore.
by mtmotorsport
Sun Nov 26, 2023 10:39 pm
Forum: You and your build
Topic: 2012 Hyundai Accent 1.6 GDI aftermarket-ally turbocharged
Replies: 11
Views: 29445

Re: 2012 Hyundai Accent 1.6 GDI aftermarket-ally turbocharged

Was it actually knocking? Modern DI engines have a pretty high knock threshold, well past MBT usually
by mtmotorsport
Thu Nov 02, 2023 8:55 pm
Forum: Dev: Hardware
Topic: smallCANboard also known as Small CAN Board
Replies: 15
Views: 26093

Re: smallCANboard also known as Small CAN Board

2023-11-02_14_36_35_284: EngineState: Added Lua CAN RX filter id 0x18EFFF21 mask 0x1FFFFFFF without custom function 2023-11-02_14_36_35_284: EngineState: Added Lua CAN RX filter id 0x18EFFF18 mask 0x1FFFFFFF without custom function 2023-11-02_14_36_35_284: EngineState: Added Lua CAN RX filter id 0x...
by mtmotorsport
Thu Nov 02, 2023 5:35 pm
Forum: Tuning Support: Making it Run
Topic: ETB Frequency
Replies: 8
Views: 18187

Re: ETB Frequency

I've never seen a throttle's position sensors (yes, hall like yours) deviate more than about 0.5% over temperature and their life without it being a wiring issue. Thanks for the push to check the wiring. While I didn't find any wiring faults I did find a bad AEM pressure sensor (Exhaust back pressu...
by mtmotorsport
Thu Nov 02, 2023 3:28 pm
Forum: Dev: Hardware
Topic: smallCANboard also known as Small CAN Board
Replies: 15
Views: 26093

Re: smallCANboard also known as Small CAN Board

How much lua program space? How much do you need? At the moment it's 50K How would you use it? If I have orders I can try using STM32F413 or STM32L496RG. STM32F413 actually has third CAN bus if anyone has a use-case for third CAN bus. Looks like 25K? 2023-11-02_11_27_21_789: EngineState: Lua memory...
by mtmotorsport
Thu Nov 02, 2023 4:05 am
Forum: Dev: Hardware
Topic: smallCANboard also known as Small CAN Board
Replies: 15
Views: 26093

Re: smallCANboard also known as Small CAN Board

Just got mine, plan to play around with it soon
by mtmotorsport
Tue Oct 31, 2023 5:48 pm
Forum: You and your build
Topic: NA Miata EcotecMiata Race Car
Replies: 68
Views: 57846

Re: NA Miata EcotecMiata Race Car

Thank you
by mtmotorsport
Tue Oct 31, 2023 5:46 pm
Forum: Tuning Support: Making it Run
Topic: ETB Frequency
Replies: 8
Views: 18187

Re: ETB Frequency

Tune: https://www.rusefi.com/online/view.php?msq=1567
Log too big to upload, fun starts at 658 seconds:
by mtmotorsport
Tue Oct 31, 2023 12:14 am
Forum: Tuning Support: Making it Run
Topic: ETB Frequency
Replies: 8
Views: 18187

Re: ETB Frequency

I'm running new wires direct from ecu to throttle body now.

This is over 3 different cars. Two on Proteus, one on MRE.
by mtmotorsport
Mon Oct 30, 2023 11:38 pm
Forum: Tuning Support: Making it Run
Topic: ETB Frequency
Replies: 8
Views: 18187

Re: ETB Frequency

Back at this again. New throttle body, lasted a few hours before starting to cause errors with TPS primary and secondary not matching. Seems the threshold is 5% error between the channels, and that is simply too close it seems. Previous throttle bodies had analog resistive traces for TPS signals. Th...
by mtmotorsport
Tue Oct 17, 2023 12:11 am
Forum: You and your build
Topic: NA Miata EcotecMiata Race Car
Replies: 68
Views: 57846

Re: NA Miata EcotecMiata Race Car

Is it possible to add something like this screenshot to the ETB system? This is allowed TPS error percentage in the OE GM calibration.
by mtmotorsport
Mon Oct 02, 2023 12:29 pm
Forum: You and your build
Topic: NA Miata EcotecMiata Race Car
Replies: 68
Views: 57846

Re: NA Miata EcotecMiata Race Car

www ecotecmiata.ca

You'll want an 8 bolt flywheel kit for the 2.0L engine. Stock location turbos clear the chassis with lots of room. You'll need to bypass and block off the oil cooler and run a remote one.
by mtmotorsport
Thu Sep 21, 2023 9:16 pm
Forum: Tuning Support: Making it Run
Topic: ETB Frequency
Replies: 8
Views: 18187

ETB Frequency

I remember reading about the reason the default PWM frequency is 800hz but I can't find it. I think this is the cause of my repeated throttle body failures. They audibly make noise, and while that isn't a concern of itself it has lead to multiple throttle bodies with failed TPS circuits. I'm using G...
by mtmotorsport
Thu Aug 31, 2023 5:35 pm
Forum: Dev: Hardware
Topic: Proteus - Waterproof, High-feature ECU!
Replies: 338
Views: 505360

Re: Proteus - Waterproof, High-feature ECU!

Are the injector drivers on Proteus capable of handing 8.5ohm injectors? Specifically Bosch 0 280 158 333 injectors. The datasheet for VNLD5160 doesn't specify if the 3.5amp drain current is per channel or total. If per channel that would be fine, if total it might run into some thermal issues? I've...
by mtmotorsport
Thu Aug 24, 2023 4:29 pm
Forum: You and your build
Topic: BMW 540i Turbo LS Swap
Replies: 2
Views: 4463

Re: BMW 540i Turbo LS Swap

Pictures soon, and tune will be uploaded later as well
by mtmotorsport
Thu Aug 24, 2023 3:00 pm
Forum: You and your build
Topic: BMW 540i Turbo LS Swap
Replies: 2
Views: 4463

BMW 540i Turbo LS Swap

Always a work in progress, but here is a project I've been working on. Its a 94 BMW 540, since swapped to an LS, with a medium sized turbo. Proteus ECU with some basic Lua to control a second fuel pump. 16psi peak boost, dropping to redline. It has a known exhaust back pressure problem that I can't ...
by mtmotorsport
Fri Aug 11, 2023 2:50 am
Forum: You and your build
Topic: NA Miata EcotecMiata Race Car
Replies: 68
Views: 57846

Re: NA Miata EcotecMiata Race Car

Manually holding the throttle closed and open is how I did calibrate it. ETB motor off. Resting throttle is around 20-25% depending on which AV channels are used and which way around they are wired.
by mtmotorsport
Fri Aug 11, 2023 12:54 am
Forum: You and your build
Topic: NA Miata EcotecMiata Race Car
Replies: 68
Views: 57846

Re: NA Miata EcotecMiata Race Car

To be honest the tune changed each time I flipped the wiring/position so I'm not sure which one that tune correlates to. I can redo this if you think it would be of benefit.
by mtmotorsport
Fri Jul 28, 2023 9:57 pm
Forum: You and your build
Topic: NA Miata EcotecMiata Race Car
Replies: 68
Views: 57846

Re: NA Miata EcotecMiata Race Car

I can see a slight variance in the two TPS curves. I wonder if the ecu should record a TPS swing from min to max and store that as known good data instead of just the two points and straight line interpretation it does now?
by mtmotorsport
Fri Jul 28, 2023 5:19 pm
Forum: You and your build
Topic: NA Miata EcotecMiata Race Car
Replies: 68
Views: 57846

Re: NA Miata EcotecMiata Race Car

Some datalogs attached. Essentially flipped TPS primary and secondary channels on AV2 and AV5 then physically changed to AV8 and AV10 and swapped those from primary to secondary again. Odd behaviour, in that the TPS error occurs at different blade angles. These logs are all with the ETB disabled and...
by mtmotorsport
Sun Jul 23, 2023 1:31 am
Forum: You and your build
Topic: NA Miata EcotecMiata Race Car
Replies: 68
Views: 57846

Re: NA Miata EcotecMiata Race Car

That I have not tried. I will try Monday
by mtmotorsport
Sun Jul 23, 2023 12:53 am
Forum: You and your build
Topic: NA Miata EcotecMiata Race Car
Replies: 68
Views: 57846

Re: NA Miata EcotecMiata Race Car

Chasing TPS drop out. It is annoying me because sometime the TPS error is big/long enough to cause the throttle to actually close a bit and the drive feels this. Also this is causing fits with the transmission controller. I've uploaded a log which shows the issue. It seems like there is more noise o...
by mtmotorsport
Fri Jul 07, 2023 9:55 pm
Forum: Tuning Support: Making it Run
Topic: CBR600RR Engine
Replies: 38
Views: 34074

Re: CBR600RR Engine

Vds is only 40v. While that may spark in open air on a test bench, it will not fire reliably at all under pressure in the cylinder.
by mtmotorsport
Fri Jul 07, 2023 9:04 pm
Forum: Tuning Support: Making it Run
Topic: CBR600RR Engine
Replies: 38
Views: 34074

Re: CBR600RR Engine

The actual FET you use for ignition coil control is very important. It needs to have a very high avalanche voltage (350v+), very fast turn off time at moderate current (5-10amps), and very low RDSon. you don't want a FET at all, you want an IGBT designed for ignition coil applications Yes, exactly....
by mtmotorsport
Fri Jul 07, 2023 8:59 pm
Forum: Tuning Support: Making it Run
Topic: CBR600RR Engine
Replies: 38
Views: 34074

Re: CBR600RR Engine

There should be no more than 2 engine revolutions of delay before you get a spark. If it is longer than this you still have some crank trigger problem.
by mtmotorsport
Fri Jul 07, 2023 8:58 pm
Forum: Tuning Support: Making it Run
Topic: CBR600RR Engine
Replies: 38
Views: 34074

Re: CBR600RR Engine

The actual FET you use for ignition coil control is very important. It needs to have a very high avalanche voltage (350v+), very fast turn off time at moderate current (5-10amps), and very low RDSon. You need to trigger the inductive timing light from the secondary side of the ignition coil, not the...
by mtmotorsport
Fri Jul 07, 2023 8:39 pm
Forum: Tuning Support: Making it Run
Topic: CBR600RR Engine
Replies: 38
Views: 34074

Re: CBR600RR Engine

The paired cylinders are 1&4 and 2&3, and that is the way the ECU will fire them. While firing two ignition coils at once there is no logical difference between the default 4 cylinder firing order of 1-3-4-2 and the honda 1-2-4-3. How are you checking ignition timing? Removing the COP from t...
by mtmotorsport
Fri Jul 07, 2023 7:39 pm
Forum: Tuning Support: Making it Run
Topic: CBR600RR Engine
Replies: 38
Views: 34074

Re: CBR600RR Engine

Have you tired this in two wire wasted spark mode?

Remember, cylinder 1 is the left side of the bike while sitting on it. So this is furthest from the timing chain.
by mtmotorsport
Tue Jul 04, 2023 11:18 pm
Forum: You and your build
Topic: NA Miata EcotecMiata Race Car
Replies: 68
Views: 57846

Re: NA Miata EcotecMiata Race Car

Yes it is, and I didn't know that. Air flow is a big deal, that makes the rest of the torque calcs easier. And this doesn't have to be some extremely precise value, I'm sure +- 25-50Nm is fine. Yes there should be scalars for temps, specific fuel energy, friction, etc but really for most aftermarket...
by mtmotorsport
Tue Jul 04, 2023 11:00 pm
Forum: You and your build
Topic: NA Miata EcotecMiata Race Car
Replies: 68
Views: 57846

Re: NA Miata EcotecMiata Race Car

Can you share the script? There are some proposals to have build in higher level torque redu tion functions into Lua. What I really think would be ideal but I have no idea how hard it would be to implement is some rudimentary torque broadcast. Could be as simple as displacement vs fuel flow vs ve*m...