Results 1 to 16 of 16

Thread: Question for the FI Ram 50 Owners

  1. #1

    Array
    Status
    Offline
    Join Date
    06-27-2015
    Posts
    418
    Location

    Bothwell,Ontario
    Vehicle

    1991 Dodge Ram 50
    Engine

    4G64

    Question for the FI Ram 50 Owners

    Does your air box hole a hole cut in the front of the box? Does your rad support have 2 hole beside the headlight one on top of each other ? Basically beside the air tube on the rad support beside the pass headlight.

    The 1991 Spec book doesn't show this hole in the air box OR these 2 holes in the rad support

    Just wondering if mine was modified or this was on purpose from the factory

  2. #2

    Array
    Status
    Offline
    Join Date
    11-29-2015
    Posts
    442
    Location

    miami, fl
    Vehicle

    1991 Dodge D-50
    Engine

    4G64
    cool to c u actually run that truck at the strip.

    isn't the 2.0 head chamber volume(& valves) much smaller than the 2.4 ?
    i suppose u figured out the higher compression ratio... valve clearence if any.. etc

  3. #3

    Array
    Status
    Offline
    Join Date
    09-26-2014
    Posts
    494
    Location

    Ca
    Vehicle

    1993 Dodge Ram 50
    Engine

    4G64
    'can1991, from My 93 -
    yes on the 2 holes,

    Attachment 22741

    Below is the 'unmolested' air box
    Attachment 22742

  4. #4

    Array
    Status
    Offline
    Join Date
    06-27-2015
    Posts
    418
    Location

    Bothwell,Ontario
    Vehicle

    1991 Dodge Ram 50
    Engine

    4G64
    Dash... it's slow but fun.

    I even made it to this guys video
    https://youtu.be/5TgXPncJFnQ

    Claych: What are the triangle two boxes in front of the Air Box? Mine doesn't have that. It is good to know the holes are factory. I wonder why unless they were for air conditioning lines to go through?

  5. #5

    Array
    Status
    Offline
    Join Date
    06-27-2015
    Posts
    418
    Location

    Bothwell,Ontario
    Vehicle

    1991 Dodge Ram 50
    Engine

    4G64

  6. #6

    Array
    Status
    Offline
    Join Date
    06-27-2015
    Posts
    418
    Location

    Bothwell,Ontario
    Vehicle

    1991 Dodge Ram 50
    Engine

    4G64
    Dash. I will CC the head 2.0 head but won't have anything to compare it to until I pull the 2.4 head. I'm assuming this will be a bolt on since others have done it. I will keep milling to a minimum to avoid too much compression.

  7. #7

    Array
    Status
    Offline
    Join Date
    09-26-2014
    Posts
    494
    Location

    Ca
    Vehicle

    1993 Dodge Ram 50
    Engine

    4G64
    'can1991,
    The missing 'box' is an intake resonator, some one removed Yours (the 2 rivet holes & shaved lip).
    As for the 2 mystery holes, don't know... look at My first pic above, the a/c lines run through
    a separate dedicated hole.
    Interesting, the same hole Your ?trans cooler? lines run through.

    P.s,
    I am curious about the cam lift measurements you made,
    did you subtract the base circle measurement ? (x axis)
    lift= y axis - x axis .
    Thx.
    Last edited by claych; 06-11-2019 at 12:22 PM. Reason: forgot to add thx.

  8. #8

    Array
    Status
    Offline
    Join Date
    06-15-2014
    Posts
    6,059
    Location

    Adelaide, South Australia
    Vehicle

    1985 Mitsubishi L200
    Engine

    G63B
    Whoever removed the resonator from the intake didn't know what they were doing. That 'empty box' creates an air reserve that's worth 1-2 kW of midrange power and torque and shuts up some of the intake noise. The mystery holes - could be either power steering/trans cooler lines as Claych suggested
    support the forum that supports you - join and donate to MightyRam50.Net today! donations unlock the edit function

  9. #9

    Array
    Status
    Offline
    Join Date
    09-26-2014
    Posts
    494
    Location

    Ca
    Vehicle

    1993 Dodge Ram 50
    Engine

    4G64
    edit.
    Last edited by claych; 06-23-2019 at 10:07 AM.

  10. #10

    Array
    Status
    Offline
    Join Date
    06-27-2015
    Posts
    418
    Location

    Bothwell,Ontario
    Vehicle

    1991 Dodge Ram 50
    Engine

    4G64
    It's funny.. I ran the whole taped up thinking that it would just suck HOT air in through it and ruin the colt air coming from the factory tube.

    BUT... for fun at the track.. I pulled the tape off the whole and picked up 5 hundredth..LOL LOL but it was getting cooler at night... but I ran a hot lap back to back that way and ran EXACTLY the same time verifying the 5 hundredths pick up.

    I was thinking of maybe a tube from the hole to the 2 holes in the rad support... a bit extra volume and it would be colder air..

    Just a though.

    Right now I'm running with the hole open.

  11. #11

    Array
    Status
    Offline
    Join Date
    06-27-2015
    Posts
    418
    Location

    Bothwell,Ontario
    Vehicle

    1991 Dodge Ram 50
    Engine

    4G64
    The cam lift I made was gross lift from the base circle to the tip using a digital gauge and it comes out the same as the service manual for the 1991 4G64 FI engine.

    The whole in the bottom of my pick has the lines to my factory tranny cooler

  12. #12

    Array
    Status
    Offline
    Join Date
    06-27-2015
    Posts
    418
    Location

    Bothwell,Ontario
    Vehicle

    1991 Dodge Ram 50
    Engine

    4G64
    I'm glad mine doesn't have AC.. it would turn on and my engine would stop running as it won't have enough power to turn it...LOL

  13. #13

    Array
    Status
    Offline
    Join Date
    06-15-2014
    Posts
    6,059
    Location

    Adelaide, South Australia
    Vehicle

    1985 Mitsubishi L200
    Engine

    G63B
    Quote Originally Posted by Can1991Ram View Post
    I'm glad mine doesn't have AC.. it would turn on and my engine would stop running as it won't have enough power to turn it...LOL
    Ouch Think of it as an auxiliary engine brake...
    support the forum that supports you - join and donate to MightyRam50.Net today! donations unlock the edit function

  14. #14

    Array
    Status
    Offline
    Join Date
    09-26-2014
    Posts
    494
    Location

    Ca
    Vehicle

    1993 Dodge Ram 50
    Engine

    4G64
    edit.
    Last edited by claych; 06-23-2019 at 10:08 AM.

  15. #15

    Array
    Status
    Offline
    Join Date
    06-27-2015
    Posts
    418
    Location

    Bothwell,Ontario
    Vehicle

    1991 Dodge Ram 50
    Engine

    4G64
    Thank you for your rudeness..... there is better ways of getting your point across.

    Obviously I used the wrong term. It would have been better to point that out than to belittle someone.

    The measurement I provided was from the base circle to the tip of the lobe.

    You take from that what you will. I will no longer respond to your messages as this is a fun hobby and a simple mistake.

    I was having a good time discussing my project up to this point.

  16. #16

    Array
    Status
    Offline
    Join Date
    09-26-2014
    Posts
    494
    Location

    Ca
    Vehicle

    1993 Dodge Ram 50
    Engine

    4G64
    edit.
    Last edited by claych; 06-23-2019 at 10:08 AM.

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •