VSS input to measure turbo speed

ol boy · Post by **ol boy** » Sat Jul 23, 2016 11:42 pm

I'm interested in measuring my turbos compressor wheel speed during different driving conditions. I've found several optical speed sensor pick ups from a few places. Most put out a simple raising/falling edge signal at 1 pulse per Rev. Triggered off of that white paint mark on one fin. I assume there would need to be some sort of scaler of 1to100 or so. 1000 would really equal 100,000 rpm.. any ideas?

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grom_e30 · Post by **grom_e30** » Mon Jul 25, 2016 3:17 am

why not use the generic shaft speed for this, http://www.msextra.com/doc/pdf/html/Meg ... 4-226.html

Matt Cramer · Post by **Matt Cramer** » Mon Jul 25, 2016 6:57 am

grom_e30 wrote:why not use the generic shaft speed for this, http://www.msextra.com/doc/pdf/html/Meg ... 4-226.html

Yep, we're using this on our 240SX land speed car.

Suprazz · Post by **Suprazz** » Mon Jul 25, 2016 7:24 am

I'm using the generic shaft speed too on my HE351VE with 1 pulse per rev.

ol boy · Post by **ol boy** » Mon Jul 25, 2016 8:09 am

Cool, got it. That's nice.

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aidandj · Post by **aidandj** » Mon Aug 22, 2016 2:38 pm

What is the max speed for the "High Speed" input

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VSS input to measure turbo speed

VSS input to measure turbo speed

Re: VSS input to measure turbo speed

Re: VSS input to measure turbo speed

Re: VSS input to measure turbo speed

Re: VSS input to measure turbo speed

Re: VSS input to measure turbo speed