ray need help
+ Reply to Thread
Results 1 to 7 of 7

This is a discussion on ray need help within the Engine Performance forums, part of the Tutorials & DIY category; what is beter to use a 4.5 bell or 3 in o a down pipe for a 08 wrx...

  1. #1
    Registered User
    Join Date
    Nov 2008
    Posts
    4

    ray need help

    what is beter to use a 4.5 bell or 3 in o a down pipe for a 08 wrx

  2. Remove Advertisements
    ClubWRX.net
    Advertisements
     

  3. #2
    Registered User
    Join Date
    Nov 2008
    Posts
    4

    suppp

    so what what can i do to get more power

  4. #3
    The Default One SeattleJeremy's Avatar
    Join Date
    Jul 2004
    Location
    Seattle, WA
    Posts
    4,488
    Hello, and welcome to ClubWRX!

    Here is a thread that addresses your question.
    Engine Performance FAQ [[[READ ME]]]

    Oh, and a bell mouth exhaust is always better, both types work, but bell mouth is better.

  5. #4
    Registered User
    Join Date
    Nov 2008
    Posts
    4

    rayray

    what is beter though 3 in or 4.5 bell mouth
    and dous the cool air intake actually work

  6. #5
    DUB
    DUB is offline
    Registered User DUB's Avatar
    Join Date
    Jul 2007
    Location
    SLT, CA
    Posts
    3,176
    Stop posting immediately. Read everything contained herein: Unabomber's Manifesto - NASIOC Then you may resume posting.

    Oh, and welcome to the club.

  7. #6
    The Default One SeattleJeremy's Avatar
    Join Date
    Jul 2004
    Location
    Seattle, WA
    Posts
    4,488
    I think the information from this post should be copied here too
    2.5'' Downpipe Options
    Quote Originally Posted by ramonsalvador08 View Post
    what is beter a 3" bell or 4.5" bell on a 08 wrx
    Quote Originally Posted by jeremy96gase View Post
    Ray, I think you're confused. There is no such thing as a 3" bell.

    jpjester, There is no such thing as a 4.5" exhaust system. It's only 4.5" at the turbo.

    There are three types of Downpipe inputs (the part that attaches to the turbo).
    1. Bellmouth (4.5")
    2. Divorced (4.5" or 3" + 2")
    3. Non-bellmouth (3" pipe)

    Here is Invidia's explanation on JCSpeeds' website
    Divorced vs. Bellmouth:
    Divorced: A divorced wastegate downpipe has a plate the protrudes into the turbo to separate exhaust flow coming out of the turbo to give reduce turbulence. This is good for stock and smaller turbochargers; the protrusion does not work with some aftermarket turbos (i.e APS).
    Bellmouth: This design has a wide-open bell at the turbo, which is better for larger turbochargers with more flow. It will work fine with a stock or small turbo, but it is designed for scenarios where wastegate turbulence is not an issue.

    The diagram to the right is a stock WRX turbo, so you can see how the turbocharger interacts with the Bellmouth and Divorced Invidia downpipe designs.
    This thread has pictures of the Non-bellmouth type.
    Engine Performance FAQ [[[READ ME]]]

  8. #7
    Registered User 2:43AM's Avatar
    Join Date
    Sep 2008
    Location
    NWI
    Posts
    647
    Quote Originally Posted by DUB View Post
    Stop posting immediately.
    Haha, just listen up!

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself. We strongly suggest that you stay away from using aol, yahoo, msn, and hotmail accounts. Sometimes the mail server blocks the emails from our server. As a result you will not receive any notifications including the confirmation email.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Posting Permissions

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