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Header-Catback Dynos

This is a discussion on Header-Catback Dynos within the External Engine forums, part of the LSx Technical Help Section category; Hey everyone i was wondering what kinda dynos you have seen with only a header to catback system. I currently ...

  1. #1
    Junior Member
    Join Date
    Aug 2005
    Location
    New Jersey
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    31
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    Red
    2007 Z06 Corvette

    Header-Catback Dynos

    Hey everyone i was wondering what kinda dynos you have seen with only a header to catback system. I currently have a magnaflow catback exhaust system and sitting in my garage is my brand new Jet Hot Long Tube headers with an ORY. I want to know what kinda rwhp everyone has seen

    thanx
    fix

  2. #2
    ruff ruff rotwiler's Avatar
    Join Date
    Aug 2005
    Location
    WA State
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    51
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    481

    LT's, 3400 stall, FIPK,CB
    2002 Z28

    02 Z28, A4
    K&N Fipk and Magnaflow exhaust, plus out of the box Predator tune 307.1 rwhp SAE
    With the Addition of LT FLP headers with cats, rear 02 sims, 345 rwhp SAE(I don't have my dyno sheet here, but is within a h.p or two) I had to bring up the A/F to 12:9:1 to acheive this, before using the Predator to change the A/F I was at 318 rwhp.

  3. #3
    02 Blk T/A WS6
    Guest
    02 trans am ws6
    mods=lid,dynatech supermaxx longtubes with cats into a spintech 3in catback
    on 4 pulls the best i got was 354.1hp and 358.7torque

    i did tune the car later on so its prolly in the 360's now

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