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Header collector outlet size? 2.6 motor
#1027947
05/10/11 04:06 AM
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Joined: May 2011
Posts: 49
OP
Getting the Wheeling Fever
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Im having a hard time finding anywhere around here that will build me an exhaust around here without a cat in it and the jerk wad that owned the truck before me cut off the exhaust at the header and shrank it down to what looks like scooter sized exhaust piping and ran a cherry bomb glass pack. Needless to say it sounds like [censored]! I am gonna use a flowmaster 40 series or a Hushpower like in my old Jeep cause they are slim and really easy to tuck up and out of the way. What size is the collector outlet and did you guys use a flex connector? Im not sure how much these engines flex and I dont want to break the new exhaust by cheaping out. Thanks.
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Re: Header collector outlet size? 2.6 motor
[Re: theheep]
#1027948
05/10/11 04:09 AM
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Joined: Jun 2002
Posts: 6,211
Trail Leader
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The 2.6 likes back pressure. Seriously. Don't use big pipe.
John B.
'87 Raider 2.6 Turbo Auto, Under Construction '95 Montero SR, 35x12.5/15 BFG M/T KM-2's, Rock sliders, Qtr panel chop, gas tank lift, 2" BL, Aisins, 5.29s '95 Pajero Mini '98 Montero Winter Ed. '04 Cadillac XLR '03 Kawasaki ZRX1200R '60 Ford Falcon 4Dr
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Re: Header collector outlet size? 2.6 motor
[Re: JohnnyBfromPeoria]
#1027949
05/10/11 04:36 AM
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Joined: May 2011
Posts: 49
OP
Getting the Wheeling Fever
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You thinking two and a quarter or two inch? And I have since decided to use a high flow cat after research here and low gas mileage because the 02 sensors dont read right becasue they dont heat up without the back pressure not running a cat.
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Re: Header collector outlet size? 2.6 motor
[Re: theheep]
#1027950
05/10/11 09:31 AM
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Joined: Sep 2006
Posts: 2,712
Roll Me Over
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With a stock 2.6 a 2" exhaust is good. You do not want to be smaller than that. If it is made at a muffler shop with thick tube and crimped down bends you might want to run a 2? tube.
Cheers, Charlie If It ain't broke, Modify it! 87 Montero turbo Converted back in Spring1989 95 Montero SR 3.8 DOHC Only one? 93 Pajero 3 door 6G75 Mivec with paddle shifted 5 speed Then a Gen2 SR with full coil independent suspension.
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Re: Header collector outlet size? 2.6 motor
[Re: OldColt]
#1027951
05/11/11 01:06 AM
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Joined: May 2011
Posts: 49
OP
Getting the Wheeling Fever
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Yeah im supposed to have one made Monday and I think with the cat and muffler, Im gonna stick with 2.25 unless someone else has had better luck with 2.5?? Please feel free to offer opinions.
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Re: Header collector outlet size? 2.6 motor
[Re: theheep]
#1027952
05/11/11 02:39 AM
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Joined: May 2000
Posts: 6,132
Trail Leader
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Yeah im supposed to have one made Monday and I think with the cat and muffler, Im gonna stick with 2.25 unless someone else has had better luck with 2.5?? Please feel free to offer opinions. 2.5 seems like overkill for a NA motor.
87 Turbo Intercooled Raider, roller cam, torsen rear diff, LSD front diff, lockup auto with modified converter, V6 brakes, low transfer case gears...
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Re: Header collector outlet size? 2.6 motor
[Re: Kevin C]
#1027953
05/11/11 04:01 AM
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Joined: May 2011
Posts: 49
OP
Getting the Wheeling Fever
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thats what i thought but wanted to make sure. thanks for the input. i wanna really maintain as much torque as possible and too little backpressure will decrease it.
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