Turbo speed sensor
Moderators: jsmcortina, muythaibxr
-
- Helpful MS/Extra'er
- Posts: 60
- Joined: Thu Mar 24, 2016 11:37 pm
- Location: Geraldton Australia
Turbo speed sensor
Has anyone used one of these; Garrett Turbo Speed Sensor Kit(Product Code: 781328-0001) with a MS3XV3.57 ? The instructions say it outputs a square-wave signal for data logging but the datalogger will need to multiply the signal to obtain the correct rpm. Can the MS3XV3.57 do this? Is PT4 the correct input for this?
Nissan D21 Stock D/Driver
Nissan D22 KA24DET MS3X, gtx3076, Kelford cams, 950cc injectors, LS1 coils, custom manifold & exhaust.
Nissan D22 KA24DET MS3X, gtx3076, Kelford cams, 950cc injectors, LS1 coils, custom manifold & exhaust.
-
- Site Admin
- Posts: 39585
- Joined: Mon May 03, 2004 1:34 am
- Location: Birmingham, UK
- Contact:
Re: Turbo speed sensor
Sounds fine. The MS3 allows a fractional number of teeth, which effectively multiplies as they require.
James
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
-
- Helpful MS/Extra'er
- Posts: 60
- Joined: Thu Mar 24, 2016 11:37 pm
- Location: Geraldton Australia
Re: Turbo speed sensor
Thanks James, will go ahead and wire it up.
Nissan D21 Stock D/Driver
Nissan D22 KA24DET MS3X, gtx3076, Kelford cams, 950cc injectors, LS1 coils, custom manifold & exhaust.
Nissan D22 KA24DET MS3X, gtx3076, Kelford cams, 950cc injectors, LS1 coils, custom manifold & exhaust.
Re: Turbo speed sensor
I have been using it with a very similar conditioner BW offers for the EFR for several years. It is solid and drama free. I generally have reliable shaft speed measurements even at idle (3,000 ish shaft rpm on my setup). Never had a high speed dropout either, and the shaft speed agrees well with my operational point with the compressor map (144k measured, map suggest 136 ish k, with some guestimation for inputs).
Definately use PT4 provided the conditioner only outputs a 5v square wave.
Definately use PT4 provided the conditioner only outputs a 5v square wave.
86 Rx-7, swapped to 2.3 ford turbo (BW EFR 6758), ms3/ms3x sequential fuel /waste spark, ls2 coils
88 Tbird 2.3t, Microsquirt Module (PIMP), TFI ignition
88 Tbird 2.3t, Microsquirt Module (PIMP), TFI ignition
Re: Turbo speed sensor
wes kiser wrote:I have been using it with a very similar conditioner BW offers for the EFR for several years. It is solid and drama free. I generally have reliable shaft speed measurements even at idle (3,000 ish shaft rpm on my setup). Never had a high speed dropout either, and the shaft speed agrees well with my operational point with the compressor map (144k measured, map suggest 136 ish k, with some guestimation for inputs).
Definately use PT4 provided the conditioner only outputs a 5v square wave.
boost leak check the system religiously at first to ensure you are sealing 100%. Every air molecule that is able to escape the plumbing will result with a higher wheel speed than the airflow you are measuring going into the engine. This is detrimental to performance because it means the exhaust gas pressure goes up when we leak air on the compressor side to compensate, it has to spin faster now to make up for the air molecules the compressor is "throwing away" in order to meet demands and open the gate.
-
- Master MS/Extra'er
- Posts: 723
- Joined: Mon Feb 15, 2010 4:57 am
- Location: Alès - France
- Contact:
Re: Turbo speed sensor
I come back about this sensor that I need to use soon. The main problem I can see here is that high speed inputs of MS3 processor are rated for 1kHz and that the sensor may output a 2,6kHz signal at 160000 rpm.Bigcam wrote:Has anyone used one of these; Garrett Turbo Speed Sensor Kit(Product Code: 781328-0001) with a MS3XV3.57 ? The instructions say it outputs a square-wave signal for data logging but the datalogger will need to multiply the signal to obtain the correct rpm. Can the MS3XV3.57 do this? Is PT4 the correct input for this?
https://www.garrettmotion.com/wp-conten ... s_RevE.pdf
Does anyone achieve a working setup, even on PT4 ?
Thank,
Manu
Edit : maybe I misunderstood the input limits and confound with output limits. Also, can this sensor use CAM input (with MAX9926 conditioner) ?