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Engine 1986-93 Mustang March Performance Ram Air Kit 5.0

  • Thread starter Thread starter Mindseye007
  • Start date Start date Oct 19, 2023

Mindseye007

10 years still blowing strong
5 Year Member
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Oct 19, 2023
#1
  • Oct 19, 2023
  • #1

does anyone use this March Performance Ram Air air kit or is it a gimmick?​

https://lmr.com/item/MCH-1410/1986-93-Mustang-March-Ram-Air-Kit​

​

 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
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Oct 19, 2023
#2
  • Oct 19, 2023
  • #2
I used to run one before AFM Power Pipe put my filter element out into the fender.


I used to run the whole kit and then went to running just the airbox and filter. The ram air kit didn't function poorly per se. The cleanout works ok but it did still scoop stuff up occasionally. Is the ram air worth any HP? Probably not. Is it a good airbox to use to get the air intake out of engine bay? Yeah, that's what it's good for.



Here's a pic from the [way back] machine I was only using the box at this point, shortly after in installed the KB.

I made [almost] 1 lb more boost with the KB with this airbox over the stock airbox in my data logs.

Dislikes: Over time, the filter element doesn't fit as snugly into the airbox as when it is new. Some F4 tape is how I fixed this:

Harbor Products F4 Black Self-Fusing Silicone Tape - 1" Wide x .020" Thick x 36' Long Roll

Visit SkyGeek to order F4 Self-Fusing Silicone Tape by Harbor Products. The tape measures one-inch wide and is black in color. It comes in a 36-foot long roll.
skygeek.com
 
Last edited: Oct 19, 2023
Reactions: Mindseye007 and Potomus Pete

90trunk

Active Member
Mar 5, 1999
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Downriver DTW, Michigan
Oct 19, 2023
#3
  • Oct 19, 2023
  • #3
The March airbox is a great way to mount a conical filter under the hood. I opened up the air intake opening to match the hole in the fender apron with a Dremel using a Roto-Zip bit. I do not use the ram air hose or scoop. You can also purchase the ram air box as a stand-alone item directly from March.

1986-1993 5.0L Mustang Ram Air Box

1986-1993 5.0L Mustang Ram Air Box.
marchperformance.com
 

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Reactions: Mindseye007 and Noobz347

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
43,130
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Box behind Walmart
Oct 19, 2023
#4
  • Oct 19, 2023
  • #4
90trunk said:
The March airbox is a great way to mount a conical filter under the hood. I opened up the air intake opening to match the hole in the fender apron with a Dremel using a Roto-Zip bit. I do not use the ram air hose or scoop. You can also purchase the ram air box as a stand-alone item directly from March.

1986-1993 5.0L Mustang Ram Air Box

1986-1993 5.0L Mustang Ram Air Box.
marchperformance.com
Click to expand...
Sweet! Here's the filter too:

Ram Air K&N Filter

Ram Air K&N Filter.
marchperformance.com
 
Reactions: Mindseye007

Mindseye007

10 years still blowing strong
5 Year Member
Oct 21, 2020
579
135
63
ontario
Oct 20, 2023
#5
  • Oct 20, 2023
  • #5
Noobz347 said:
I used to run one before AFM Power Pipe put my filter element out into the fender.


I used to run the whole kit and then went to running just the airbox and filter. The ram air kit didn't function poorly per se. The cleanout works ok but it did still scoop stuff up occasionally. Is the ram air worth any HP? Probably not. Is it a good airbox to use to get the air intake out of engine bay? Yeah, that's what it's good for.



Here's a pic from the [way back] machine I was only using the box at this point, shortly after in installed the KB.

I made [almost] 1 lb more boost with the KB with this airbox over the stock airbox in my data logs.

Dislikes: Over time, the filter element doesn't fit as snugly into the airbox as when it is new. Some F4 tape is how I fixed this:

Harbor Products F4 Black Self-Fusing Silicone Tape - 1" Wide x .020" Thick x 36' Long Roll

Visit SkyGeek to order F4 Self-Fusing Silicone Tape by Harbor Products. The tape measures one-inch wide and is black in color. It comes in a 36-foot long roll.
skygeek.com
Click to expand...
What was that sweet KB like when you floored 1st gear to take off ? Or going from 4th to 3rd gear and flooring it to pass some one. What rear gears did you have? Did you ever have it on a dyno?
 
Last edited: Oct 20, 2023

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,260
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Oct 20, 2023
#6
  • Oct 20, 2023
  • #6
I didn't think it was still sold.

It probably works well at speed. Cold air can't hurt right? Back in the day, i heard it lovingly referred to as "Ram dirt" so i would at least keep on top of filter maintenance. I have no personal experience with it however.
 
Reactions: wiseguyk

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
43,130
21,294
234
Box behind Walmart
Oct 20, 2023
#7
  • Oct 20, 2023
  • #7
Mindseye007 said:
What was that sweet KB like when you floored 1st gear to take off ?
Click to expand...


Even with 2:73s:


You learn fast that the skinny pedal isn't an on/off switch anymore.
 
P

Praetorious

Active Member
May 22, 2020
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living room.
Oct 23, 2023
#8
  • Oct 23, 2023
  • #8
Wow, that's a blast from the past, weren't these things a big issue because they could suck water into your engine being that the intake scoop was so low to the ground or was that just talk?
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
43,130
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234
Box behind Walmart
Oct 24, 2023
#9
  • Oct 24, 2023
  • #9
Praetorious said:
Wow, that's a blast from the past, weren't these things a big issue because they could suck water into your engine being that the intake scoop was so low to the ground or was that just talk?
Click to expand...
I never had that happen. The trick there is to not drive in water that's over the bumper, I think.

That's not an issue I ever encountered in my Mustang but I've done it in a truck or two.
 
P

Praetorious

Active Member
May 22, 2020
102
55
38
living room.
Oct 24, 2023
#10
  • Oct 24, 2023
  • #10
lol, gotcha.
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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Oct 25, 2023
#11
  • Oct 25, 2023
  • #11
Noobz347 said:
I never had that happen. The trick there is to not drive in water that's over the bumper, I think.

That's not an issue I ever encountered in my Mustang but I've done it in a truck or two.
Click to expand...
Company I worked for in the 90's gave us Olds wagons that had the air intake below the bumper.. Had a fellow sales guy suck water into his car ( dumb ass was driving in a flood) and hydrolocked his engine that way..
 
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