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What Sensor for vaccum/pressure?

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(@walter)
Posts: 244
Member
Topic starter
 

Hi! im looking for to add an sensor that can read vaccum and pressure, just tried before GM sensor and looks like only read pressure..does it? i'd like to get readings as a boost gauge..let say -1 / - 0.5  / 0 / 0.5 / 1 /  1.5 / 2 bar. what sensor would be good for this? 

Thanks!

 
Posted : 28/11/2018 11:59 pm
(@bmgjet)
Posts: 362
Dyno Wizard
 

Any map sensor should work if it can read the pressure your after.
Im using a Honda Map sensor which reads, 29 inch to 12psi.
Have it set to read in KPA since makes it a bit more simple to read since atmosphere is 100kpa.

 
Posted : 29/11/2018 5:16 am
(@mach_1)
Posts: 350
Member
 

I'm old fashioned and atmospheric pressure should be referencing as zero where you have manifold vacuum in negative pressure and anything above atmosphere is postive pressure ( boost) and prefer inches units example a good running stock normaly aspirated engine at idle should pull -22inHg and at wide open throttle (WOT) under load with no induction restriction should pull  - 0 inHg.

For turbo/supercharged ( boosted) engine you see at ( WOT)  +7 psi above atmospheric pressure . ( what ever boost you have maximum boost adjusted too.)

 

Try www.banggoods.com I find their service good and very competitive prices.

Here is just one simple search  i did for example purposes    https://m.banggood.com/buy/sensor-map.html

You will have to decide what your requirements are .

 

 

 
Posted : 29/11/2018 9:31 am
(@mach_1)
Posts: 350
Member
 

It would be nice if yourdyno software could display a face gauge like this  and down the bottom a digit numerical number alongside it on the face of the gauge

 

This post was modified 5 years ago by Mach_1
 
Posted : 29/11/2018 9:39 am
(@slider)
Posts: 16
Member
 

I’m using Bosch 0261230439 MAP sensor. It can measure from 28,9 kpa to 400 kpa so it can measure 3bar of boost 🙂

 
Posted : 29/11/2018 10:25 am
(@walter)
Posts: 244
Member
Topic starter
 
Posted by: Mach_1

It would be nice if yourdyno software could display a face gauge like this  and down the bottom a digit numerical number alongside it on the face of the gauge

 

Hi, that would be veeery good!

About to start from Zero, it's good, but sometimes dyno is not always for to Reading power, it's good for to diagnostique problems on some cars.

 

Thanks for your replies!

 
Posted : 29/11/2018 11:17 am
(@mach_1)
Posts: 350
Member
 

The Vacuum/boost gauge isn't just used for WOT full noise power runs purposes.

 
Posted : 29/11/2018 9:30 pm
(@mach_1)
Posts: 350
Member
 

People work with different measuring units 

 
Posted : 29/11/2018 9:33 pm
(@walter)
Posts: 244
Member
Topic starter
 
Posted by: Mach_1

The Vacuum/boost gauge isn't just used for WOT full noise power runs purposes.

correct.

 
Posted : 30/11/2018 11:39 am
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