How To Convert To a Fox Style Throttle Body

Discussion in '1994 - 1995 Specific Tech' started by GTJake, Jul 13, 2004.


  1. 5.0tbirdguy

    5.0tbirdguy New Member

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    OOPS the adapter on the 70mm maf is a 3" to 4" adapter. Just don't want anyone buying the wrong part. I was suprised how nice the rubber squeezed down on smaller tubing without creasing or puckering. You just have to get the clamp real close to the end.
  2. FastGT94

    FastGT94 New Member

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    I think the main problem is finding a place that will bend 3.5" aluminum or stainless pipe.

    I'm looking to find a place that will bend me a 3.5" aluminum elbow (lighter than stainless)
  3. RIO5.0

    RIO5.0 Mustang Master

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    Yes it's lighter, but it also sucks up heat like 20 times faster than SS...:D Learned that surfing around for tubing info...
    Actually it means jack if you read this...Most do Choose Alum though...This is from AEM's web..

    When the throttle is fully opened however, air speed and airflow increase considerably. Typically, the inlet air speed of a 5.7L engine with a four-inch duct at full throttle is 34 feet-per-second, based on a volumetric efficiency of 70% and an engine speed of 3,000 rpm. Most inlet systems for every intake manufacturer for this engine are 30 inches or less. This means that the air in the duct of a 30-inch inlet length on this engine at the given rpm is 1/10th of a second—hardly enough time to transfer an appreciable amount of heat into the air stream on any system.


    Basically, the rate at which air travels through the inlet path under open throttle, when one is asking the engine for maximum power, negates the effect of material heat soak, regardless of the material. We hope that this helps to clear up the issues of material heat absorption in intake systems.
  4. FastGT94

    FastGT94 New Member

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    Good read there, but why then does icing the intake work? Because of the larger displacement surrounding the incoming air?

    Also, either way, that SS tubing place only offers 3" or 4" and I'm looking to go up from a 3" elbow to a 3.5" elbow.
  5. zenboy99

    zenboy99 Founding Member

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    The truck shop that I went to had all 3" 3.5" and 4" diesel exhaust tubing all mandrell bent at different angles. I found a piece for my friend, we just cut off the extra. If you want to go 3" to 3.5", check out the link I posted above, they have couplers for that.
  6. FastGT94

    FastGT94 New Member

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    I don't exactly have any local truck shops that I know of. I guess I'll have to check the yeller pages.

    Don't need a 3" to 3.5" have that covered already :)
  7. zenboy99

    zenboy99 Founding Member

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    FYI, I went to a Diesel repair shop off the interstate in my home town. For whatever its worth the guy working there said most shops should carry that kind of tubing.
  8. FastGT94

    FastGT94 New Member

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    I'll have to take a look around, thanks!
  9. 95Vert

    95Vert New Member

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  10. Green 94 5.0

    Green 94 5.0 Founding Member

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    i have something else i am unsure about. i have my egr completely deleted and turned off in the eec. im looking at a 75mm accufab throttle body with the blank egr spacer. would this be the correct part to buy? just want some reassurance to avoid having to return anything.
  11. zenboy99

    zenboy99 Founding Member

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    You can get a 3/8" thick EGR plate on E-Bay for ~$20. I bought the thick EGR spacer and the TPS sensor was hitting the hood. The thin EGR spacer will help pull things in for better hood clearance.

    Here's one I found:
    http://cgi.ebay.com/ebaymotors/MUST...047537839QQcategoryZ33558QQrdZ1QQcmdZViewItem
  12. Green 94 5.0

    Green 94 5.0 Founding Member

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    hood clearance really isnt a problem with the cobra r hood. my concern is more or less making sure the pipe from the vortech to the fox throttle body fits properly.
  13. smokin95vert

    smokin95vert New Member

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    i wanna do this but can you use a mm strut bar. thanks jay
  14. 1990Coupe

    1990Coupe Founding Member

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    *Subscribing*
  15. TD91GT

    TD91GT New Member

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    great info hear thanks everyone
  16. kck6894

    kck6894 Advanced Member

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    I have several pics of a Fox conversion on my 94 Cobra with a AFM power pipe. I can post them if anyone wants them.
  17. 94GTLaserRC

    94GTLaserRC Squint as you approach, lest you be blinded by my

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    REVIVED!!!

    RC
  18. 94GTLaserRC

    94GTLaserRC Squint as you approach, lest you be blinded by my

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  19. Stangfreak95

    Stangfreak95 add a 4 Founding Member

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    What do you still wanna know ?
  20. 94GTLaserRC

    94GTLaserRC Squint as you approach, lest you be blinded by my

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    LOL...I was trying to help a friend out with the same thing, so I just did that so they could find the post more easily... Thanks for asking!!

    RC

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