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MAP bypass valve?

  • Thread starter Thread starter sfcadams
  • Start date Start date May 5, 2009
S

sfcadams

Member
Apr 26, 2009
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Tucson, Arizona
May 5, 2009
#1
  • May 5, 2009
  • #1
Anyone have any info on how exactly a MAP bypass valve is installed? I am asking because I have a speed-density 87 Mustang 5.0 and am being told that I need to run a MAP bypass valve to keep boost from being seen when I install my Paxton 1220SL....

Is anyone running one of these bypass valves on a speed-density Mustang and can comment on it?
 

strtrcr50

New Member
Jun 21, 2006
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Previously from Dirty Jerzey exit 7a
May 5, 2009
#2
  • May 5, 2009
  • #2
sfcadams said:
Anyone have any info on how exactly a MAP bypass valve is installed? I am asking because I have a speed-density 87 Mustang 5.0 and am being told that I need to run a MAP bypass valve to keep boost from being seen when I install my Paxton 1220SL....

Is anyone running one of these bypass valves on a speed-density Mustang and can comment on it?
Click to expand...

This would be what you need. It goes inline on the vac line to the MAP sensor bolted to the firewall.
Check Valve Assembly For Speed Density Vehicle | Vortech Superchargers
The factory MAP does not like to see boost. FWIW, you would be better off to convert over to mass air.
 
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