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Exhaust Pipe Routing - Need Pics - AMC360 - Page 3
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Thread: Exhaust Pipe Routing - Need Pics - AMC360

  1. #21
    Bulltear forum member New to the forum
    Join Date
    Sep 2009
    Posts
    7
    Sorry. He basically told me if your motor is stock then 2.25"-2.50" is fine. He didnt exactly answer the "back pressure" thing we've all heard about over the years. He also told me if it were true they would all be using small piping on these race cars that go through his shop. I just got my NV4500 finished and will be heading back to the exhaust guy to put on my Magnaflow's and change my piping a tad cause my Mag's are a little longer. I put exhaust back on "less the tail portion" after the NV4500 just to see the difference for a week til I do the swap. More bassy for sure. Sounds quite a bit more healthy. I prefer a quieter ride for everyday though.
    1986 Jeep CJ7 Laredo AMC 360 V8 w/ 407.1 HP, 432 ft. lbs, Full Roller Valvetrain, Ported Edelbrock Heads, NV4500, M8274, Kilby OBA w/ 10 C.I. York, A/C, Detroit Soft Locker's, 4.56 gears, Cable Twin Stick'd Dana 300, Magnaflow Dual 3" Exhaust, Hardtop & Softtop, Line X Interior, Completely Waterproof Stereo, etc, etc.....

  2. #22
    Thank you from BT Tech Master Bulltear Forum
    Join Date
    Sep 2003
    Location
    Florida
    Posts
    1,155
    Thanks, so I guess the bigger the pipe to get the engine to breathe the better/H.P., right?
    84' CJ8-360-Project M170 Jeep
    86' CJ7-258-Mommas Jeep
    Project CJ8 to M170 Conversion<----Click

  3. #23
    Thank you from BT Master (OIIIO)
    Join Date
    Apr 2004
    Location
    Missoula MT, Now in Santa Rosa Ca
    Posts
    759
    i run dual 2.5's with 2 chamber flow masters on each side and ported manifolds for my 401. its a little loud for my taste, sure isnt a hunting rig but at 4000-5000 rpm its hard to hate it unless you're sleeping and even at idle the thud is sure nice. no power loss when i jumped from dual 2"'s
    IF washington wont quit spending money like mad men then i suggest we claim 9 deductions in 2010 and withold or taxes till the final dead line of 4/15/2011.

    CJ7 AMC401 http://www.fordification.com/images/forum/bug.gif

    "May God have mercy on my enemies, because I WON'T!!" -General George Patton
    Member #377

  4. #24
    Thank you from BT Tech Master Bulltear Forum
    Join Date
    Sep 2003
    Location
    Florida
    Posts
    1,155
    Thanks, I'm gonna run 2.5"
    84' CJ8-360-Project M170 Jeep
    86' CJ7-258-Mommas Jeep
    Project CJ8 to M170 Conversion<----Click

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