Exhaust system help please
Have an account? Register

Forgot your password?

Forgot your username?

 
Likes Likes:  1
+ Reply to Thread
Results 1 to 6 of 6
  1. #1
    I'm a grown up member now !
    Join Date
    Jan 2018
    Location
    East Mids
    Posts
    43
    Images
    33
    Post Thanks / Like
    corned is offline

    Exhaust system help please

    Hi again folks.

    Today's question is about exhaust systems. Current set up is a stock Ford 292 Y-Block (1962 vintage, according to the engine numbers). It has been fitted with tubular headers and a dual 2.5" OD stainless pipe system - one for each bank. There's no crosspipe or anything like that. There are two huge Thrush rectangular boxes half way along (under the cab/body join) and then straight pipes out under the rear axle and to freedom.

    I'm not happy with the sound. Or rather, the tone. The volume levels are ok, but it just doesn't have that musical Y-Block tone. In fact, the pipes have a hollow digeridoo-like sound at the back. Very unsatisfactory. If you rev it up, you get the characteristic V8 sound, but at idle it sounds like a kid making a noise from a drainpipe by blowing down it.

    So - what can I do about it? I like the sound that Smithy's glasspacks give out. But the question is can I just replace the mufflers, and fit 2.5" OD Smithy's, or is the problem bigger than that? Are the pipes just too big, giving it that hollow sound? And what difference do the various lengths of Smithy's mufflers make?

    I tried removing the tailpipes altogether, but the booming in the cab with the muffler boxes dumping out direct under the bed was just too much to bear.

    I'm not sure how to tackle the problem, so I'm open to suggestions please.

  2. Remove Advertisements
    RodsnSods.co.uk
    Advertisements
     

  3. #2
    richard rawlplug Torment's Avatar
    Join Date
    Apr 2009
    Location
    nottafukinchancingham
    Posts
    7,800
    Images
    56
    Post Thanks / Like
    Torment is offline
    Move the mufflers to the rear...?


    The Oddlot Drag Racing Team...havin fun is usual
    57 chevy wagon.
    540cui altered.
    your not drunk enough if you can lie on the floor without holding on..

  4. #3
    Official RnS Addict ivanhoew's Avatar
    Join Date
    Feb 2013
    Location
    uranus
    Posts
    2,108
    Images
    3
    Post Thanks / Like
    ivanhoew is offline
    try 2 inch from the silencers to the back ? or even 1.75".
    Bicester scramble ,Medusa enjoyed the trip.https://www.youtube.com/watch?v=Q-7I7-nA19U

  5. Remove Advertisements
    RodsnSods.co.uk
    Advertisements
     

  6. #4
    Official RnS Addict trevd's Avatar
    Join Date
    Jun 2009
    Location
    Rayleigh Essex
    Posts
    3,113
    Images
    278
    Post Thanks / Like
    trevd is offline
    i have always found the mild steel sounds better than stainless, mild sounds deeper pitch. try using mild steel from the box to the rear.

  7. LikesKustom Jim liked this post
  8. #5
    Official RnS Addict ivanhoew's Avatar
    Join Date
    Feb 2013
    Location
    uranus
    Posts
    2,108
    Images
    3
    Post Thanks / Like
    ivanhoew is offline
    had a quick look and this appears to b around a 180-200 bhp engine ? if so you could probably use a 1.5 inch pipe from the silencers to the back each side , using a couple of reducers,and maybe pick up a bit of low down torque and fuel economy too .
    Bicester scramble ,Medusa enjoyed the trip.https://www.youtube.com/watch?v=Q-7I7-nA19U

  9. #6
    I'm a grown up member now !
    Join Date
    Jan 2018
    Location
    East Mids
    Posts
    43
    Images
    33
    Post Thanks / Like
    corned is offline
    Thanks guys. This is what I'm thinking - those drainpipes are far too much for a relatively low-tune / low-compression motor. It's a later truck C2AE motor, so probably 160bhp new max.

    I like the idea of the glasspacks, but was unsure of the rest of the system. Now I know the direction I need to head.

    Much appreciated!

+ 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.

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

Please enter a valid email address for yourself.

Where you live, Town\City\County etc.

Please enter your full name
This field cannot be edited once it has been completed other than via contacting the site admin. Please make sure the information is correct first time.

Log-in

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

    Similar Threads

    1. Fuel System help please
      By bigdavy in forum Tech Discussion
      Replies: 13
      Last Post: 18-11-2013, 19:41
    2. Help needed – simple DiY exhaust system; 350 in C-20
      By Barneys66 in forum Tech Discussion
      Replies: 11
      Last Post: 07-02-2010, 20:23
    3. help please
      By 58 delray in forum Chat
      Replies: 2
      Last Post: 08-07-2009, 08:03
    4. Help please folks !!
      By andy fadster in forum On Topic
      Replies: 7
      Last Post: 06-07-2009, 18:17

    Bookmarks

    Posting Permissions

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