Results 1 to 16 of 16

Thread: raspy!!!

  1. #1
    Senior Member Justin23454's Avatar
    Join Date
    Aug 2007
    Location
    Virginia beach
    Age
    40
    Posts
    1,962

    SOM
    1998 Trans Am

    raspy!!!

    After 2k RMP my exhaust gets really raspy, I just installed new headers and ory. Anyone know why this is, also, alot of times when I start my car I get back fire, anyone know why? I know my exhauts isnt sealing great because I can feel some air coming out of the connecter points, so im getting some sealent for that today, dont know if that will help with the rasp or not, I hope so...

  2. #2
    Senior Member Justin23454's Avatar
    Join Date
    Aug 2007
    Location
    Virginia beach
    Age
    40
    Posts
    1,962

    SOM
    1998 Trans Am

    also, will new tips make it less raspy at all? I have stock tips?

  3. #3
    Life in the Fast lane sunsetorangess's Avatar
    Join Date
    Aug 2005
    Location
    Bragg NC
    Posts
    2,834

    Met. Sunset Orange
    01 SS

    What catback do you have?, No changing the tips will not change the rasp. A good flowing catback will, ie magnaflow.
    You need to seal the system to get rid of those annoying exhaust leaks and the backfiring issue.
    I would reccomend using band clamps.
    J
    2001 SS, Its not the car its the Driver that matters....

  4. #4
    Senior Member Justin23454's Avatar
    Join Date
    Aug 2007
    Location
    Virginia beach
    Age
    40
    Posts
    1,962

    SOM
    1998 Trans Am

    well, they are blown cats from OBX.

  5. #5
    Senior Member Justin23454's Avatar
    Join Date
    Aug 2007
    Location
    Virginia beach
    Age
    40
    Posts
    1,962

    SOM
    1998 Trans Am

    If I get true duel exhaust (X pipe) would that fix it, or do I need new cats?

  6. #6
    Senior Member Justin23454's Avatar
    Join Date
    Aug 2007
    Location
    Virginia beach
    Age
    40
    Posts
    1,962

    SOM
    1998 Trans Am

    no one know? Or should I post in another section?

  7. #7
    Junior Member BirdFlewLS1's Avatar
    Join Date
    Sep 2007
    Location
    I sleep in the house...Live in the shop
    Posts
    87

    midnight Blue
    '99 Trans Am ws7

    I have LT headers,3 inch until the rear end and over it then to the tips. mine is very raspy also... i think the only way to fix this is a muffler. i am not going to put one on because of drag application but once i open my cut outs that are right off the headers....it goes away..so you could just get some cut outs lol

  8. #8
    O U 8 1 2 Spaz's Avatar
    Join Date
    Nov 1999
    Location
    over here...
    Age
    45
    Posts
    25,709

    []D [] []V[] []D
    1999 trans am

    the backfire is normal.. unspent fuel combusts in the exhaust... all muscle cars shoudl back fire...

  9. #9
    Senior Member Justin23454's Avatar
    Join Date
    Aug 2007
    Location
    Virginia beach
    Age
    40
    Posts
    1,962

    SOM
    1998 Trans Am

    so get another cut out :O i got one that dumps b4 the muffler, where should i put the other :O *I have a Y pipe not (X-H)

  10. #10
    Member
    Join Date
    Mar 2007
    Location
    Ewing, NJ
    Age
    58
    Posts
    160

    2000 Camaro SS
    1969 Z28 JL8 crossram, #'

    Cats are the best way to get rid of rasp on LS1 cars. Y-pipe and cat-back doesn't make much of a difference if you don't have cats. I had to run with 1 cat for a week after I put the headers in and it still had rasp from the side with no cat. Now with dual cats it sounds much better.

  11. #11
    Member
    Join Date
    Aug 2005
    Location
    Burlington, NC
    Posts
    202

    Black
    2000 Camaro SS

    Dual exhaust just may stop your raspy sound. I have true duals and I have no rasp..
    JEB

  12. #12
    Senior Member Justin23454's Avatar
    Join Date
    Aug 2007
    Location
    Virginia beach
    Age
    40
    Posts
    1,962

    SOM
    1998 Trans Am

    where is the best place to get the cats? and how will I know if they will fit my set-up

  13. #13
    Senior Member Justin23454's Avatar
    Join Date
    Aug 2007
    Location
    Virginia beach
    Age
    40
    Posts
    1,962

    SOM
    1998 Trans Am

    also whats the diff with blown cats and none blown?

  14. #14
    Member 2fast2blegal's Avatar
    Join Date
    Aug 2007
    Location
    San Antonio
    Posts
    828

    pewter
    2002 Trans Am

    Hey i have a set of SLP high flow cats and a true dual system for sale PM me if you want more info

  15. #15
    Member
    Join Date
    Mar 2007
    Location
    Ewing, NJ
    Age
    58
    Posts
    160

    2000 Camaro SS
    1969 Z28 JL8 crossram, #'

    Your so called "blown" cats are nothing more than an open chamber with nothing inside it. That probably magnifies the raspiness even more. I have some basic 3" carsound cats I bought used. Ask around and you can probably find a pair for $50 or less. Pypes makes a compact 3" cat and Magnaflow also has a compact 3" metallic spun cat(#59959) but the magnaflow may not quiet down the rasp as much as a longer cat.

  16. #16
    Senior Member Justin23454's Avatar
    Join Date
    Aug 2007
    Location
    Virginia beach
    Age
    40
    Posts
    1,962

    SOM
    1998 Trans Am

    Last edited by Justin23454; 01-16-2008 at 07:58 PM.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Anyone TIRED of RASPY EXHAUST!!!?????
    By jb3golf in forum General Help
    Replies: 72
    Last Post: 06-22-2010, 06:24 PM
  2. raspy exhaust note
    By stangslayer98 in forum External Engine
    Replies: 7
    Last Post: 08-05-2008, 08:05 AM
  3. raspy!
    By Justin23454 in forum External Engine
    Replies: 6
    Last Post: 01-17-2008, 12:57 PM
  4. Raspy headers
    By 2fast2blegal in forum External Engine
    Replies: 23
    Last Post: 11-26-2007, 05:28 PM
  5. Will this setup be to raspy?
    By 02_WS6 in forum External Engine
    Replies: 1
    Last Post: 03-23-2006, 04:11 PM

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
  •