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UCON Flex Advanced Engine Management System

Discussion in 'Performance and Tuning' started by gray223, Jul 5, 2014.

Page 55 of 86
  1. Sep 27, 2017 at 6:36 PM
    #1081
    Torspd

    #1081
    Torspd Tor-nication

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    Then you should have a 2 and 1/2 in Cat-Back exhaust from the factory. OD. The earliest models had two and a quarter.
     
    Torspd, Sep 27, 2017
    #1081
  2. Sep 27, 2017 at 10:07 PM
    #1082
    Roostfactor

    #1082
    Roostfactor Well-Known Member

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    Go with the 2.5". 2.25" will restrict flow as it would be the smallest diameter in the post y of the exhaust.
     
    Roostfactor, Sep 27, 2017
    #1082
    gersus likes this.
  3. Sep 28, 2017 at 9:05 AM
    #1083
    Billy182

    #1083
    Billy182 Well-Known Member

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    Thanks guys. I'll be honest I'm really surprised at how much louder it is, especially since I already had DTLT's and kept the original muffler. Before the y-pipe it sounded almost no different than stock. I guess that just goes to show how restrictive the original y-pipe with secondary cats is.

    I'll be looking forward to getting the vibrant resonator welded in and toning things down a bit
     
    Billy182, Sep 28, 2017
    #1083
    jojotoo and Roostfactor like this.
  4. Sep 28, 2017 at 9:45 AM
    #1084
    5thGearPinned

    #1084
    5thGearPinned Light Speed

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    What about the performance aspect of the new y pipe with all your other mods? Did opening up the exhaust free up a lot more power? Is that part worth the extra loudness?
     
    5thGearPinned, Sep 28, 2017
    #1084
  5. Sep 28, 2017 at 9:56 AM
    #1085
    Torspd

    #1085
    Torspd Tor-nication

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    Torspd Custom Turbo kit [] Borg Warner 9180EFR Turbo [] Haltech Elite 2500 [] TiAL Q BOV [] TiAL V44 Wastegate @ 15psi [] CP Pistons [] CP Carrillo Rods [] ARP Head studs [] ARP Main Studs [] ARP Header - Head Studs [] Ported Heads w/ 1mm oversized valves intake/exhaust [] Brian Crower Forged Stroker Crank [] Darton M.I.D. Sleeved Block [] Kelford Camshafts [] Torspd 160* T-stat mod [] APR Large Fuel Rail [] Walbro 460 LPH E85 Fuel Pump [] FueLab FPR [] APR T56 Conversion Kit [] KP RACING Built T56 [] McLeod Racing Custom Twin Disk Clutch [] One Piece Aluminum Driveshaft [] MGW Shifter [] Custom lowering kit [] Ohlins Front Coilovers [] QA1rear shocks [] Custom Ron Davis Radiator [] Dual SPAL Electric Fans []
    Did a before and after dyno run, with the URD Y-pipe, as the changed component. It is in the N/A dyno thread. Huge gain at the end of the RPM range, even for N/A. It was on a 1GR 4Runner, with the stock catback, DTLT headers, and APR X-1. Again, the only change was the Y-pipe.
     
    Torspd, Sep 28, 2017
    #1085
    5thGearPinned likes this.
  6. Sep 28, 2017 at 9:58 AM
    #1086
    Torspd

    #1086
    Torspd Tor-nication

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    Torspd Custom Turbo kit [] Borg Warner 9180EFR Turbo [] Haltech Elite 2500 [] TiAL Q BOV [] TiAL V44 Wastegate @ 15psi [] CP Pistons [] CP Carrillo Rods [] ARP Head studs [] ARP Main Studs [] ARP Header - Head Studs [] Ported Heads w/ 1mm oversized valves intake/exhaust [] Brian Crower Forged Stroker Crank [] Darton M.I.D. Sleeved Block [] Kelford Camshafts [] Torspd 160* T-stat mod [] APR Large Fuel Rail [] Walbro 460 LPH E85 Fuel Pump [] FueLab FPR [] APR T56 Conversion Kit [] KP RACING Built T56 [] McLeod Racing Custom Twin Disk Clutch [] One Piece Aluminum Driveshaft [] MGW Shifter [] Custom lowering kit [] Ohlins Front Coilovers [] QA1rear shocks [] Custom Ron Davis Radiator [] Dual SPAL Electric Fans []
    It is Lucario Runner's graph. In the first post.
     
    Torspd, Sep 28, 2017
    #1086
  7. Sep 28, 2017 at 4:17 PM
    #1087
    5thGearPinned

    #1087
    5thGearPinned Light Speed

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    Nice. That is definitely good gain.
     
    5thGearPinned, Sep 28, 2017
    #1087
  8. Sep 28, 2017 at 5:35 PM
    #1088
    loginfailed

    #1088
    loginfailed Well-Known Member

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    loginfailed, Sep 28, 2017
    #1088
  9. Sep 28, 2017 at 8:30 PM
    #1089
    Torspd

    #1089
    Torspd Tor-nication

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    What's all of the excitement about?
     
    Torspd, Sep 28, 2017
    #1089
  10. Sep 28, 2017 at 9:18 PM
    #1090
    Biscuits

    #1090
    Biscuits Thorny Crown of Entropy

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    Swiggity swangin' biggity bangin'
    Howdy. Back from the dead.

    At least someone gets excited about me.:(
     
    Biscuits, Sep 28, 2017
    #1090
    loginfailed[QUOTED] and jojotoo like this.
  11. Sep 29, 2017 at 3:15 AM
    #1091
    loginfailed

    #1091
    loginfailed Well-Known Member

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    Who doesn’t get exited about biscuits? :D
     
    loginfailed, Sep 29, 2017
    #1091
    Biscuits[QUOTED] likes this.
  12. Sep 29, 2017 at 6:35 AM
    #1092
    Torspd

    #1092
    Torspd Tor-nication

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    I like mine with honey and butter. :hungry:
     
    Torspd, Sep 29, 2017
    #1092
    loginfailed and oni06 like this.
  13. Sep 29, 2017 at 10:32 AM
    #1093
    Torspd

    #1093
    Torspd Tor-nication

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    Torspd Custom Turbo kit [] Borg Warner 9180EFR Turbo [] Haltech Elite 2500 [] TiAL Q BOV [] TiAL V44 Wastegate @ 15psi [] CP Pistons [] CP Carrillo Rods [] ARP Head studs [] ARP Main Studs [] ARP Header - Head Studs [] Ported Heads w/ 1mm oversized valves intake/exhaust [] Brian Crower Forged Stroker Crank [] Darton M.I.D. Sleeved Block [] Kelford Camshafts [] Torspd 160* T-stat mod [] APR Large Fuel Rail [] Walbro 460 LPH E85 Fuel Pump [] FueLab FPR [] APR T56 Conversion Kit [] KP RACING Built T56 [] McLeod Racing Custom Twin Disk Clutch [] One Piece Aluminum Driveshaft [] MGW Shifter [] Custom lowering kit [] Ohlins Front Coilovers [] QA1rear shocks [] Custom Ron Davis Radiator [] Dual SPAL Electric Fans []
    So since your last dyno( which was with the 2.55" correct?), you have installed the shorter belt, and the Y-pipe, yes?
     
    Torspd, Sep 29, 2017
    #1093
  14. Sep 29, 2017 at 2:09 PM
    #1094
    Roostfactor

    #1094
    Roostfactor Well-Known Member

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    I like where you're going with this Torspd.
     
    Roostfactor, Sep 29, 2017
    #1094
  15. Sep 29, 2017 at 3:09 PM
    #1095
    Torspd

    #1095
    Torspd Tor-nication

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    ;)
     
    Torspd, Sep 29, 2017
    #1095
  16. Sep 29, 2017 at 7:15 PM
    #1096
    Billy182

    #1096
    Billy182 Well-Known Member

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    Yes, noisier now, but still hitting 10 psi with the blower wound up.
     
    Billy182, Sep 29, 2017
    #1096
  17. Sep 29, 2017 at 8:11 PM
    #1097
    Torspd

    #1097
    Torspd Tor-nication

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    Time to dyno again! Or at least after you upgrade the catback to 3". If you really want to increase the Y pipes lemon or flow then at the exiting merge collector you need to cut it right where produces down from 3 inches and then world on a flange to mate to the 3 inch cat back. So that it is a true 3 inch out of the Y pipe into the cat back.
     
    Torspd, Sep 29, 2017
    #1097
  18. Sep 29, 2017 at 10:23 PM
    #1098
    Biscuits

    #1098
    Biscuits Thorny Crown of Entropy

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    Why 2.5" to 3.0"? Y-pipe diameter is 3.0"?
     
    Biscuits, Sep 29, 2017
    #1098
  19. Sep 29, 2017 at 10:36 PM
    #1099
    Roostfactor

    #1099
    Roostfactor Well-Known Member

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    It does begin as a 3" but necks down at the flange to accomodate stock 2.5" exhaust. Bottom pic at the flange is made to fit to the stock 2.5" exhaust.
     
    Roostfactor, Sep 29, 2017
    #1099
  20. Sep 30, 2017 at 5:45 AM
    #1100
    Torspd

    #1100
    Torspd Tor-nication

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    Torspd Custom Turbo kit [] Borg Warner 9180EFR Turbo [] Haltech Elite 2500 [] TiAL Q BOV [] TiAL V44 Wastegate @ 15psi [] CP Pistons [] CP Carrillo Rods [] ARP Head studs [] ARP Main Studs [] ARP Header - Head Studs [] Ported Heads w/ 1mm oversized valves intake/exhaust [] Brian Crower Forged Stroker Crank [] Darton M.I.D. Sleeved Block [] Kelford Camshafts [] Torspd 160* T-stat mod [] APR Large Fuel Rail [] Walbro 460 LPH E85 Fuel Pump [] FueLab FPR [] APR T56 Conversion Kit [] KP RACING Built T56 [] McLeod Racing Custom Twin Disk Clutch [] One Piece Aluminum Driveshaft [] MGW Shifter [] Custom lowering kit [] Ohlins Front Coilovers [] QA1rear shocks [] Custom Ron Davis Radiator [] Dual SPAL Electric Fans []
    This is it^^^
     
    Torspd, Sep 30, 2017
    #1100
    Roostfactor[QUOTED] likes this.
Page 55 of 86

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