New Exhaust

Discussion in 'Technical' started by 4dr73mav, Oct 2, 2004.

  1. 4dr73mav

    4dr73mav Member

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    I had the exhaust system replaced from the manifolds all the way back yesterday. The mav is running so much better now.
    :bananamanI'm getting better gas mileage and the popping noise is gone.:bananaman

    Turns out the Y-pipe was almost smashed shut on the driver's side. My exhaust guy fabbed up a new Y-pipe and did a great job. It's just a single exhaust, but it's more than enough for a stock 302. I'll get some pictures up sometime next week.

    Later,
    Jonathan
     
  2. elliot

    elliot Member

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    Cool , I`ll need to make up a new exhaust system on my mav once I get it back from mavericknutt because I ended up smashing up and ripping off the old exhaust system trying to load it onto a trailor :slap: :smash:
     
  3. Maverick73

    Maverick73 Senior Member

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    Congrats, on the new Exhaust system.
     
  4. T.L.

    T.L. Banned

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    Actually, a single exhaust is pretty restrictive even for a stock 302. I'd say that a dual exhaust system is first performance modification anyone should do to a Maverick (along with electronic ignition if it's an older model)...
     
  5. Maverick73

    Maverick73 Senior Member

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    Hey T.L. why a older model?
     
  6. T.L.

    T.L. Banned

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    Because the later models ('74-'77) already have it...
     
  7. 4dr73mav

    4dr73mav Member

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    I have already done the pertronix mod and it made a world of a difference. The single exhaust seems to be pretty free flowing. After a while, I might put a different gas tank on it and then switch over to dual, but being a poor married college student, it will have to wait. Right now I'm working on fixing the front suspension.

    Later,
    Jonathan
     
  8. mavman

    mavman Member

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    (y) At one time, I had an '83 F100 with a mild 466. Ran dual 3" pipes dumped at the axle for years, then got tired of the big-block rumble (what was I thinking?) and built a totally new system from headers back with 3" merge y-pipe (made it here at home) into 3 1/2" single out the right rear just behind the tire. Looked just like a new PowerStroke. Sounded kinda weird, but it did run better for sure. I used a single 3 1/2" 30 series flowmaster. Wasn't quiet, but it was MUCH quieter than dumped in front of the axle. It had a one-of-a-kind sound for sure.

    Of course that got tiring and I changed it to a pair of 3" 50 series Flowmasters about 18" behind the collectors. You could definetly tell it wasn't a 302! Sold it that way (actually traded it)
     

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