Turbosmart eBoost2 RPM Signal

[geddys]

Hello.

I have 2016 GT twin turbo setup with eBoost controller and I'm trying to add RPM Signal to controller.
From their papers I can read:
The e-Boost2 is ONLY able to accept an RPM signal in the form of a square wave that is switching between 0V and 3.5-12 volts.

I routed a new wire spliced into PCM PIN: CTRL MOD. - POWERTRAIN # IGNITION COIL ON PLUG ASSEMBLY 1 (COP-A) and plugged that into rpm wire from controller, but controller reads some garbage values.

Don't have oscilloscope to check how signal looks on this wire.

Did anybody managed to make this somehow work ? ( properly reading RPM by eBoost2 controller ).

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[Dennisn]

Hello.

I have 2016 GT twin turbo setup with eBoost controller and I'm trying to add RPM Signal to controller.
From their papers I can read:
The e-Boost2 is ONLY able to accept an RPM signal in the form of a square wave that is switching between 0V and 3.5-12 volts.

I routed a new wire spliced into PCM PIN: CTRL MOD. - POWERTRAIN # IGNITION COIL ON PLUG ASSEMBLY 1 (COP-A) and plugged that into rpm wire from controller, but controller reads some garbage values.

Don't have oscilloscope to check how signal looks on this wire.

Did anybody managed to make this somehow work ? ( properly reading RPM by eBoost2 controller ).

Please post up what you wind up doing. Been putting this off for some time now. Thought I heard you can hook it to one of the coil packs as well.

 

[StickShiftyFifty]

Yea from What i understand I dont think we can get and rpm signal for this. But if u figure it out I would be super grateful

 

[Slopoke]

I saw this post and I don't know if the things that I found regarding the tach signal will help, but looking at the MSD tach signal GMR pick up, it has a square wave output. Maybe that will work? I'd call MSD or other ignition manufactures and ask them? Good luck.


https://www.holley.com/products/accessories/gauges_and_gauge_accessories/tach_adapters/parts/8918


https://documents.holley.com/8918.pdf

 

[geddys]

I've borrowed oscilloscope and voltage wave on ignition coil looks as in attached image.
Basically voltage stays around 13V, a during spark there is drop to around 6V followed by spike and then returns to normal. It never makes it way to zero V.
So ignition coil is no good for use as RPM signal in eBoost2 as it expects square signal that is half time on zero V, half time above 3.5V

Will try looking elsewere for useful signal that already exists in car. If that fails, I'll try making simple microcontroller that will read RPM data from CANBUS and output RPM square wave.
I'll keep you posted as this turns out to be fun project ;-)

 

[ahl395]

Can you use a frequency based signal? Not sure if that's the same as square wave or not. I used the Intake cam position sensor for the RPM input on my Cortex controller.

https://sirhclabs.com/resources/cor...le-specific/ford/cortex-ebc-15-17-mustang.pdf

 

[geddys]

Can you use a frequency based signal? Not sure if that's the same as square wave or not. I used the Intake cam position sensor for the RPM input on my Cortex controller.

https://sirhclabs.com/resources/cor...le-specific/ford/cortex-ebc-15-17-mustang.pdf

I think it will not work, as intake cam position sensor has multiple "checkpoint signals" during one revolution of camshaft, while eBoost2 controller expects exacly one signal per revolution.

Im heading into plan B, making my own CAN to RPM signal board.

I've found online https://www.aimshop.com/products/aim-rpm-ecu-motorcycle-coil-adapter-arp03 that probably does that ignition coil wave filtering to produce square wave output, but price for that is way too ridiculus as probably chinese hands made this for less than 1$

 

[geddys]

Also after some google there might be plan C, which would be making "monostable multivibrator circuit" to convert those voltage spikes from ignition coil into square wave.

 

[ahl395]

Wouldn't it be easier to switch boost controllers? Lol

 

[geddys]

Wouldn't it be easier to switch boost controllers? Lol

Sure it is, but I like how this controller looks in vents ;-)
Also this feature is not critical for me, as I live in Poland, Europe and we have total of zero drag strips in whole country so car is for regular daily driving only.

 

[Bullitt69]

Sure it is, but I like how this controller looks in vents ;-)
Also this feature is not critical for me, as I live in Poland, Europe and we have total of zero drag strips in whole country so car is for regular daily driving only.

Can't imagine there are too many twin turbo Mustangs in your neck of the world...

Cool, hope you figure out your issue.

 

[geddys]

Can't imagine there are too many twin turbo Mustangs in your neck of the world...

I think there is something like 1000 mustangs (S550) registered country-wide ( 38M ppl country ) per year. With turbo I think less than 5 ;-)
I was actually first customer for our local shop that started making in-house twin turbo kits ( superchargers are more common, but still I think there is less than 30 in total )

If anyone from Europe is interested, video of this setup with contact to shop

 

[Plimmer]

Wouldn't it be easier to switch boost controllers? Lol

I’m with you. The eBoost belongs in a museum alongside other electronic equipment from the 80’s. There are so many cheaper and better options available today, like the Cortex

 

[geddys]

Managed to make a prototype controller to read RPM from CAN and inject those into eBoost2.
As a bonus I made LED inside center vents that changes color depending on RPM ;-)

 

[huntiez]

I run a eboost on my procharger gate setup love it got boost rolling in at 2100 cause of all the setting on that thing

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