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I want your opinions on an exhaust matter

Discussion in '1982-Present GM Diesel' started by imiceman44, Jan 14, 2003.

  1. imiceman44

    imiceman44 1 ton status

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    Ok Trusty this one is to make you happy /forums/images/graemlins/grin.gif
    OK guys here is the deal.
    I have a turbo diesel perkins engine, very similar in design and size to the cummins.
    I was told by a diesel mecanic from Australia that I could remove the muffler all together and still not hear a difference, and it would be cool to get rid of mine (it's all cracked up and banged up from the Rubicon) and turn the pipe up like the big rigs.
    I am removing all the front sheet metal, doing a cage around the engine with a cover over it and some flat fenders over the tires. The air filter which is military style will go on the fender. The exhaust will go up at the corner of the passenger side windshield post.
    A schematic will follow soon.
    Give me some opinions here. /forums/images/graemlins/thumb.gif
     
  2. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Sounds "Mad Max"...I like it./forums/images/graemlins/thumb.gif

    What size pipe are you thinking of?

    Rene
     
  3. imiceman44

    imiceman44 1 ton status

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    it has 3.5 inch coming out of the Turbo I think I will keep the same size.
     
  4. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Is this the Blazer? I guess you're doing away with the whole front clip then? 3.5" sounds like a good size to me...

    Rene
     
  5. imiceman44

    imiceman44 1 ton status

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    Yes it's the same blazer that is in that link Rubicon Carnage.
     
  6. billwineberg

    billwineberg Registered Member

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    3.5" should be more than adequate /forums/images/graemlins/smile.gif,
    bigger would be more for show. /forums/images/graemlins/eek.gif
     
  7. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Damn.../forums/images/graemlins/thumb.gif

    Rene
     
  8. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    So you don't think he should go with the KD bolt on performance system Bill? /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif

    Rene
     
  9. imiceman44

    imiceman44 1 ton status

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    Oh common Rene, that was instigation, I don't want that in my thread.
    To recap my question.
    I am asking you guys if I should ditch the muffler or try and adapt a short section of a muffler in my straight up position behind the Turbo.
     
  10. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    No...I was just kidding around (hence the smilie) I was impressed at not seeing a long winded reply actually.

    I've heard Semi's without mufflers and I think it sounds good. Not overly loud, just really throaty./forums/images/graemlins/thumb.gif I say run a straight pipe...

    rene
     
  11. Tybee

    Tybee 1/2 ton status

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    Sounds like a cool plan. /forums/images/graemlins/thumb.gif
     
  12. billwineberg

    billwineberg Registered Member

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    </font><blockquote><font class="small">In reply to:</font><hr />
    So you don't think he should go with the KD bolt on performance system Bill?
    Rene

    [/ QUOTE ]

    /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif
    Now now Rene, remember the KD system does NOT just "bolt-on" /forums/images/graemlins/eek.gif smash, cut, hammer, bend, dent, tweak, errr will make it fit... /forums/images/graemlins/blush.gif and once it's on to stop the rattles welding is the only solution I found that works for that.

    I went easier on the smilies this time /forums/images/graemlins/grin.gif
     
  13. arveetek

    arveetek 1/2 ton status

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    I would say ditch the muffler. The Cummins powered trucks sound really cool without a muffler. The turbo cuts a lot of the sound down.

    A 6.2L n/a without any mufflers is way too loud, however. The guy I sold my k-10 to ditched his mufflers, and now you can hear him a mile away. He said he's going to have to put some mufflers back on.

    The straight-piped Cummins trucks sound just like a big rig, so your Perkins ought to be the same.

    Casey
     
  14. OFFRDK5

    OFFRDK5 1/2 ton status Premium Member

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    I wonder what ever is just "bolt on"? I have always had to tweak something to get everthing to fit!!! /forums/images/graemlins/eek.gif
     
  15. 4xfreak

    4xfreak Registered Member

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    I heard that, all claims as to the bolt on applications are just a marketing scheme. All you guys who said you had to modify or tweak something in order to make the product fit are hitting the nail on the head dead center. As for the mufflers remove them entirely and let that beast breath. I wish I could do that with my 6.2 but as was posted the thing is noisy as a jackhammer in a steel factory /forums/images/graemlins/rotfl.gif
     
  16. imiceman44

    imiceman44 1 ton status

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    Yeah I know. I have a 6.2 NA in my Van and if you take the air filter off it's loud, if you take the exhaust off it's unbearable, but from wht I heard from a diesel mechanic is that all turbos muffle the exhaust so that is the only reason I would think of it.
    I am no fan of loud noise and the quieter I can get my trucks the better.
    /forums/images/graemlins/thumb.gif
     

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