5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

air silencer removal

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Old 05-30-2009, 11:05 PM
  #11  
r1sky5.0
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Originally Posted by NotchAbove
What in the world is going on in here, make the WOT happen ? What ?
I meant I took my 5.0 out for a little cruise after the air silencer removal and I tried doing the wide open throttle but my 5.0 didnt respond. I was asking if anybody knew why my 5.0 didnt respond to (w)ide (o)pen(t)hrottle?
Any advice will help...
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Old 05-31-2009, 12:20 AM
  #12  
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That makes a lot more sense then your other post. Removing the air silencer should not affect anything, so my only suggestion is to go back and make sure you put everything back correctly.
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Old 05-31-2009, 02:46 AM
  #13  
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Originally Posted by NotchAbove
That makes a lot more sense then your other post. Removing the air silencer should not affect anything, so my only suggestion is to go back and make sure you put everything back correctly.
Yeah, it seems like it would be something like the air flow sensor incorrectly reading how much air is coming in now.

I agree, go back over what you did. However, I would have a hard time believing you had to take much of it apart to get off the silencer. I know I didn't have much of a problem with it.

But when you say it didn't respond to WOT... you mean it didn't increase in speed at all, it was slow at increasing speed, or it was not the same as response another car? (vtec? ) Oh, and at what speed & gear did you apply WOT? WOT in 2nd gear (fast response) is much different than WOT in 5th gear at low RPMs (slower response).

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Old 05-31-2009, 04:12 AM
  #14  
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Yo dawg these cars have Vtec!SWEEEEEEEEEEEEET!lol I wonder if i can get that for my 85' GT?
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Old 05-31-2009, 12:03 PM
  #15  
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Originally Posted by Canary94GT
Yeah, it seems like it would be something like the air flow sensor incorrectly reading how much air is coming in now.

I agree, go back over what you did. However, I would have a hard time believing you had to take much of it apart to get off the silencer. I know I didn't have much of a problem with it.

But when you say it didn't respond to WOT... you mean it didn't increase in speed at all, it was slow at increasing speed, or it was not the same as response another car? (vtec? ) Oh, and at what speed & gear did you apply WOT? WOT in 2nd gear (fast response) is much different than WOT in 5th gear at low RPMs (slower response).
No removing the air silencer had nothing to do with the wide open throttle! I was just asking because I heard you have to play with the tpi in order to allow WOT to happen in a foxbody! Is this true or can a stock fox be able to WOT?
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Old 05-31-2009, 12:19 PM
  #16  
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You are acting like WOT is a specific feature of a vehicle... like a turbo? Almost any car, when you compress the gas pedal completely, is going WOT unless it has some kind of rev-limiter. Fox body's do not have rev-limiters (by default) from factory. Somebody may have made it that way though.
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Old 05-31-2009, 12:22 PM
  #17  
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Alrite then thanks.!
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Old 05-31-2009, 08:30 PM
  #18  
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Foxbodys do have a rev-limited, 6250 RPM.

What you maybe talking about is the TPS (Throttle Position Sensor). This tells the computer when you mash the pedal to WOT (Wide Open Throttle) aka pedal to the metal. You can test the TPS to ensure its in the correct operating range.
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Old 06-01-2009, 03:20 PM
  #19  
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And how do you check the tps to see if its in the correct operating range?
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Old 06-01-2009, 03:52 PM
  #20  
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They've actually dyno proven several HP gain by removing the air silencer, but it might be more beneficial on the 4.6 cars.
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