Crank and cam sensor on YB

Discuss which Sensors work best with these ECUs and share how you are using inputs and outputs
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Cpur
Posts: 51
Joined: Wed Dec 06, 2017 1:55 pm
ECU Model: S100 Pro

Crank and cam sensor on YB

Post by Cpur »

I am installing an S100 on my YB , This is my first time on a cosworth engine.
I purchased a 36-1 trigger wheel, and i am going to leave the original Marelli sensor VR type.

On the cam sensor side, i will also leave this in the distributer body just like oem but i will grind the one of the flags on the shaft. As the marelli uses 2 flags per 720deg.

I know that the crank sensor position is adjustable in the DTA configuration, But is there a best position where it can be installed.
Regarding the cam sensor , should the pulse be just before the missing tooth on the crank?

Thanks and Regards
Warren
katana
Posts: 455
Joined: Sun Jan 27, 2013 6:08 pm
ECU Model: S60 Pro
Firmware Version: 29

Re: Crank and cam sensor on YB

Post by katana »

Usual CPS position is ideally about 90 degrees BTDC. Regarding cam sensor it really doesn't matter the position just that it flags up somewhere once every 720 degrees.
Cpur
Posts: 51
Joined: Wed Dec 06, 2017 1:55 pm
ECU Model: S100 Pro

Re: Crank and cam sensor on YB

Post by Cpur »

Thanks for your reply, Katana
Just got my pulley machined now, I was going to use a trigger wheel but my engineer suggested cutting slots in the pulley itself, I agreed since it would shed weight.



Regards
Cpur
Attachments
pulley.jpg
stevieturbo
Posts: 3577
Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: Crank and cam sensor on YB

Post by stevieturbo »

Looks to be a good job.
Cpur
Posts: 51
Joined: Wed Dec 06, 2017 1:55 pm
ECU Model: S100 Pro

Re: Crank and cam sensor on YB

Post by Cpur »

Was going to get some wave forms tonight but i discovered that the connection is not a normal serial port, I need an adaptor from 15 to 9 pin dtype.
Couldn't find an old monitor to cut of the lead.

Regards
stevieturbo
Posts: 3577
Joined: Tue Aug 02, 2011 12:08 pm
ECU Model: No ECU
Location: Norn Iron

Re: Crank and cam sensor on YB

Post by stevieturbo »

Cpur
Posts: 51
Joined: Wed Dec 06, 2017 1:55 pm
ECU Model: S100 Pro

Re: Crank and cam sensor on YB

Post by Cpur »

Hi all.
Trying to start this morning. Must have woke up all neighbourhood.
When i checked the oscilloscope . I got either 78 or 258 deg. My strobe is not working on the cop
But it should be 78 deg.
Cam signal as shown on the scope is on the 33 tooth. 35th is the 1st tooth. So the cam is at around 30 deg btdc. So should i input 330deg?
I am not sure if it is on the first 360 or the second cycle. This surely makes a difference. Am i rigth?

Regards
Backfires from malta
Cpur
Posts: 51
Joined: Wed Dec 06, 2017 1:55 pm
ECU Model: S100 Pro

Re: Crank and cam sensor on YB

Post by Cpur »

BY the way.

Thanks stevieturbo for thw link
Rob Stevens
Posts: 1247
Joined: Thu Jul 28, 2011 4:10 am
ECU Model: S100 Pro
Distributor: None-Coil On Plug :)

Re: Crank and cam sensor on YB

Post by Rob Stevens »

I wouldn't worry about the cam sensor for now, just get it started in batch mode
Cpur
Posts: 51
Joined: Wed Dec 06, 2017 1:55 pm
ECU Model: S100 Pro

Re: Crank and cam sensor on YB

Post by Cpur »

Ok got it running, and now sequential is working too.

I didn't notice the -359 to 359.

Got my answer.

Lambda next to check for Inj dead time.

CHEERS GUYS
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