[Diy_efi] Exhaust Back pressure sensor

[Dave Williams]

paul w wrote:

> Anyone know where I can buy an exhaust backpressure sensor that I can 
> feed into a data acquisition system?

  An ordinary 2-bar GM MAP sensor ought to work.  Drill a 3/8" hole in 
the pipe, cross-thread in a 1/4" NPT to 1/8" tubing compression fitting 
(mechanical oil pressure sender fitting), then use at least a foot of 
1/8" copper tubing or brake line before you attach the rubber hose.

  Tyrannosaurus RX's mechanical gauge reads zero for normal driving, and 
around 9 PSI at WOT, four barrel open, in the 4000 RPM range.  Not bad 
for a 302 and single 2" exhaust.

-- 
===ronin at aristotle.net (Dave Williams)==============================
== waiting, anticipating / for someone to save her soul / well, I ==
== ain't no new Messiah / but I'm close enough for rock and roll! ==
============================= http://www.bacomatic.org/~dw/index.htm

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