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Toms RV9-A project
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Date:  1-1-2012
Number of Hours:  1.50
Manual Reference:  
Brief Description:  Review and Analysis for MAP Sensor tubing

No pictures here. I decided to start logging my analytical and head scratching time as part of the build process. This time typically gets lost in the overall build process and is a significant consumer of time and is critical to the quality of the build process. Don’t wish to turn this into a blog but documenting the decision making process is part of the build journey. Having said that here it goes:

After mounting the Skyview MAP sensor I researched on VAF and sent emails out to P-MAGS on the size of tubing and best way to integrate the P-MAG map tubing with the Dynon Sensor. Here is the outcome.

Found out that the MAP sensor requires a restricted fitting to smooth out the Manifold variations due to normal engine operation. If you connect without this restrictor you will get erroneous and constantly changing MAP readings due to the sensitivity of the sensor electronics.

I decided to use the same fitting that Van's sells for the Engine Oil Pressure fitting, which has a built in restrictor.From there I will run a custom length number 3 stainless steel hose from Cylinder 3 MAP fitting to the standard issue VAN manifold block in the standard location. I will secure this new hose by doubling up on the two bolts that hold the oil pressure line. Basically I will flip the existing Adel clamp down for the oil sensor line and add another clamp opposite 180 degrees using the same bolt. I may need to use a longer bolt but both lines run to the same block.

From there I will connect from the manifold to the Dynon MAP sensor via 1/8" NPT x 1/4" barbed hose fitting and secure with nylon clamps

The P-MAGS will be connected using the other port on the manifold block with a 1/8" nylon tee and 1/8" NPT x 1/8" barbed hose fitting. This will also be secured with nylon clamps
Hoses, fittings and clamps will be in by Friday, January 6th.

So all of this analysis took 1.5 hours and the installation will take at best 20 minutes. That’s why I am going to do this more moving forward.
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