SPA Guage and Boost Bolt

[GMueller]

Just received my SPA Boost/EGT Guage. Was planning on mounting the pressure transducer directly on the boost bolt. However, upon inspection, I noticed that the SPA pressure transducer is rather large and heavy. My concern is that normal engine vibration or an accidental hit to the side of the transducer could possibly break off the head of the boost bolt. I am wondering if I should mount the pressure transducer somewhere on the firewall and route to the boost bolt with a piece of pressure tubing (if so any suggestions for tubing and where to get it).

Disclaimer: If this seems quite retentive, it because I am an Engineer.



Any suggestions or comment are greatly appreciated.



GEM

 

[Alan Reagan]

On my 01, I mounted the SPA transducer in the 3/4 NPT hole on the drivers side toward the rear of the engine. It was to the rear of the fuel filter. 118,000 miles later, it was still fine when I traded it in. That's a pretty rugged piece.

 

[RonsRig]

I drilled and tapped the air horn after I over torqued my boost bolt and broke it :{



It was easy to take off so I had no worries of any shavings going into the engine. Cleaned it up and put it back on with no problems.

 

[Matt400]

Any suggestions or comment are greatly appreciated.

Check what I did for that here

 

[GMueller]

Thanks Matt. Your install note and pictures are great. I do have the SRT10 a-pillar. I take it from you and others that mounting the transducer directly to the boost bolt is okay after all.



GEM

 

[Matt400]

Just be careful not to over tighten the boost bolt, it's a weak point being hollow and comes with instructions. Also remember you can use your SPA EGT as a Turbo cool down devise, parts to do that are under ten bucks. Oh. . and one more thing, If you ever want to monitor fuel rail pressure I figured a way to do that with a SPA pressure gauge, comes in real handy experimenting with pressure boxes.