BW turbo speed sensor settings?

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C. Ludwig
Posts: 35
Joined: Mon Sep 23, 2013 10:04 pm

BW turbo speed sensor settings?

Post by C. Ludwig »

Have fitted a Borg Warner turbo speed sensor with an S6 Plus ECU. I'm having difficulty achieving a good, consistent reading from the sensor. Below 3k engine revs, I generally get nothing in the form of a speed signal, though a trace view of the input shows a good voltage signal square-wave form. Above 3k engine revs, the speed reading is intermittent. Are there any known good settings for this sensor and the EFR 7/14 blade turbos?
Daniel a
Posts: 7
Joined: Mon Jul 27, 2015 8:58 am

Re: BW turbo speed sensor settings?

Post by Daniel a »

Hi

I have one fitted on my efr9180 romain set it all up, I get a constant reading from mine not sure there to many people what have fitted these to the syvecs
RICE RACING
Posts: 448
Joined: Mon Feb 24, 2014 1:08 am

Re: BW turbo speed sensor settings?

Post by RICE RACING »

Daniel a wrote:Hi

I have one fitted on my efr9180 romain set it all up, I get a constant reading from mine not sure there to many people what have fitted these to the syvecs
Can you post up your settings?
I am going to fit one up soon (same turbo) on S8C
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pavlo
Zen Performance
Posts: 407
Joined: Mon Aug 04, 2008 10:18 am

Re: BW turbo speed sensor settings?

Post by pavlo »

Do you have a log showing the sensor output?

I presume you are using a thermistor input, 1v low threshold, 4v high thresholds, 1 tooth per reading and the scaling will depend on the number of blades on the wheel being read per revolution, and the number of pulses the sensor spits out.
C. Ludwig
Posts: 35
Joined: Mon Sep 23, 2013 10:04 pm

Re: BW turbo speed sensor settings?

Post by C. Ludwig »

No log yet. The car was back burnered for a couple days. Getting back into it today. I did play with it again the other day and I'm not getting pulses from the sensor in trace view at idle. When I rev the engine with no load pulses start to appear around 3k rpm but there are some skips. I've used both 5V and thermistor input with the same results. At this point, with the trace view reading poorly, I'm more inclined to think it's a sensor issue than a Syvecs issue. I've emailed about it with Ryan and will send him the logs when we have them and I'll post them here for the group.
C. Ludwig
Posts: 35
Joined: Mon Sep 23, 2013 10:04 pm

Re: BW turbo speed sensor settings?

Post by C. Ludwig »

As always, Ryan got me going. These are the settings he sent over and they've worked perfectly.

Input configuration -thermistor
Low threshold - 1.25v
High threshold - 2.75v
Number of teeth - 1
Speed scaling - .571
No signal detection speed - 3000
No signal can recover - yes
Slow on load detection min speed - 4000
Slow on load detection min manifold pressure - 23.21
Slow on load min turbo speed - 20.0 krpm
Slow on load detection time limit - 500 ms
Spike delta turbo speed - 25.0 krpm
Spike count limit - 3
Rate of change limit for de-spiked reading - 2.0 kprm
stevieturbo
Posts: 1321
Joined: Sun Dec 07, 2008 2:04 pm

Re: BW turbo speed sensor settings?

Post by stevieturbo »

Out of interest, any details of the sensor, pics of it installed etc ?

I guess the EFR already has a port for the sensor ?
C. Ludwig
Posts: 35
Joined: Mon Sep 23, 2013 10:04 pm

Re: BW turbo speed sensor settings?

Post by C. Ludwig »

I don't have any. Go to the Full-Race website and they have all the info you could want. The compressor cover has a cast in boss. You just need to drill out the rest of the cast in hole for the sensor with a 1/4" bit, deburr it, and bolt the sensor in. Half hour job if it's not difficult to access and remove the compressor cover.
RICE RACING
Posts: 448
Joined: Mon Feb 24, 2014 1:08 am

Re: BW turbo speed sensor settings?

Post by RICE RACING »

C. Ludwig wrote:As always, Ryan got me going. These are the settings he sent over and they've worked perfectly.

Input configuration -thermistor
Low threshold - 1.25v
High threshold - 2.75v
Number of teeth - 1
Speed scaling - .571
No signal detection speed - 3000
No signal can recover - yes
Slow on load detection min speed - 4000
Slow on load detection min manifold pressure - 23.21
Slow on load min turbo speed - 20.0 krpm
Slow on load detection time limit - 500 ms
Spike delta turbo speed - 25.0 krpm
Spike count limit - 3
Rate of change limit for de-spiked reading - 2.0 kprm
Thanks :)
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https://www.youtube.com/riceracingdonmega
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thisguy
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Re: BW turbo speed sensor settings?

Post by thisguy »

I have to do one of these too However, my turbo is on the smaller B1 frame. It only has 12 blades to the 14 of the larger B2 frame. The BorgWarner sensor outputs a frequency signal. Should I just adjust the speed scaling the difference in % between the 14 and 12 blade wheels? or is there something else I need to change? The math shows about a 14.3% reduction in blades and this converts directly to the math to determine the total frequency reduction as well.
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