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Jeep Throttle body

Posted by BLACK'98DSM, Oct 6, 2019

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  1. BLACK'98DSM

    BLACK'98DSM Proven Member

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    So I've read multiple threads on here referring to a Jeep throttle body that can be installed on a 420a for a slight performance gain. But nobody was clear about it.

    - On which model of Jeep would I find this throttle body?
    - Is this bolt on/plug n play?
    - Expected power gains?

    I would love to hear from someone who has done this swap before, but anybody who knows what they're talking about can give their input.


    Thanks again guys!
     

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  2. 609DSM

    609DSM Proven Member

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    Street Build 139  1

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  3. 609DSM

    609DSM Proven Member

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    Street Build 139  1

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  4. dsmcrzy

    dsmcrzy Proven Member

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    I don’t think anyone did an actual dyno run on it. You might be able to find a back to back dyno on another platform for an idea of the gains if any.

    The biggest thing I noticed was an increase in throttle response. I also had the 60mm inlet that tapered to 55mm so it matched the inlet of the stock intake better without having to open that at all.
     

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  5. silvreclips

    silvreclips Proven Member

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    I ran one of these years ago. The car ran fine, I didn't notice a huge improvement in performance. In my opinion, upgrade to a bored out stock TB. You can take the stock TB from 48mm to 55mm.

    I have an old jeep TB laying around you can have cheap if you do want to mess with it. It's been modded already and should bolt right on.
     

    Autocross Build 163  1

    1998 Mitsubishi Eclipse N/T
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  6. BLACK'98DSM

    BLACK'98DSM Proven Member

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    How about the sensors? Are they plug n play?
     

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    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

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    2012 Murray Explorer Dune
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  7. BLACK'98DSM

    BLACK'98DSM Proven Member

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    I guess what I'm really asking there is will the stock sensors work?
     

    Road Race Build 2K  25

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    335  3

    2012 Murray Explorer Dune
    rwd · automatic · Misc Vehicles

    250  6

    2009 Troy Bilt Bronco
    rwd · automatic · Misc Vehicles
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  8. silvreclips

    silvreclips Proven Member

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    You use the stock tps and IAC, but you must change the IAC tip with the Jeep tip.
     

    Autocross Build 163  1

    1998 Mitsubishi Eclipse N/T
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  9. BLACK'98DSM

    BLACK'98DSM Proven Member

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    Can I keep my 3 1/2 inch intake piping? Or do I need to upgrade to something larger?
     

    Road Race Build 2K  25

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    335  3

    2012 Murray Explorer Dune
    rwd · automatic · Misc Vehicles

    250  6

    2009 Troy Bilt Bronco
    rwd · automatic · Misc Vehicles
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