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UCON Flex Advanced Engine Management System

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

Page 53 of 86
  1. Sep 21, 2017 at 12:10 PM
    #1041
    Billy182

    #1041
    Billy182 Well-Known Member

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    2013 X-Runner build thread: https://www.tacomaworld.com/threads/billy182s-2013-x-runner-build.829354/
    I've got the press on pulley, I went from 2.85 to 2.7 to 2.55, lol still trying to get fifty bucks for the 2.7!

    I totally agree with your thoughts on the y-pipe, it only makes sense at this point to change it.
     
    Billy182, Sep 21, 2017
    #1041
    12TRDTacoma[QUOTED] likes this.
  2. Sep 21, 2017 at 12:18 PM
    #1042
    12TRDTacoma

    #1042
    12TRDTacoma Powered by Ford, GM, VW, and Mercedes

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    I love my quickchange design due to ease of changability. The jump from 2.7 to 2.55 must have been huge for you! It was for me from my 2.85 to 2.55. Lol.
     
    12TRDTacoma, Sep 21, 2017
    #1042
    Depoxy likes this.
  3. Sep 21, 2017 at 12:29 PM
    #1043
    Billy182

    #1043
    Billy182 Well-Known Member

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    Yes, I noticed an immediate "drivability" improvement, it pulled stronger right off idle and as soon as I started to accelerate, even when pulling away modestly
     
    Billy182, Sep 21, 2017
    #1043
  4. Sep 21, 2017 at 1:41 PM
    #1044
    FinnJ

    #1044
    FinnJ Well-Known Member

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    TRD SC, UCON, CNG conversion, RC 6" (lifted 4"/3" air suspension) w/FOX 2.5, 315/70R17 Duratracs, RECARO seats, etc.
    Stock Y-pipe and rest of the exhaust?

    Why it won't rev over 5300 rpm? Mine revs 6200.
     
    Last edited: Sep 21, 2017
    FinnJ, Sep 21, 2017
    #1044
  5. Sep 21, 2017 at 1:57 PM
    #1045
    Billy182

    #1045
    Billy182 Well-Known Member

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    2013 X-Runner build thread: https://www.tacomaworld.com/threads/billy182s-2013-x-runner-build.829354/
    It would rev further, but I didn't get a warm fuzzy feeling of the guy behind the wheel of my truck doing the testing, so I told him to cut it at 5500.
    Regarding the exhaust, yes stock y-pipe and stock rest of the exhaust (as came on xrunner, not sure if different models had the same or different stock system)
     
    Last edited: Sep 22, 2017
    Billy182, Sep 21, 2017
    #1045
  6. Sep 21, 2017 at 2:07 PM
    #1046
    FinnJ

    #1046
    FinnJ Well-Known Member

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    So, there is maybe 20-30 more whp there, I have seen them rising all the time until the rev limiter cut it.
     
    FinnJ, Sep 21, 2017
    #1046
  7. Sep 21, 2017 at 2:10 PM
    #1047
    Billy182

    #1047
    Billy182 Well-Known Member

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    Perhaps on a cooler day, everything got heat soaked immediately after the first run
     
    Billy182, Sep 21, 2017
    #1047
    loginfailed likes this.
  8. Sep 21, 2017 at 2:29 PM
    #1048
    loginfailed

    #1048
    loginfailed Well-Known Member

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    I was considering adding the Volant scoop. Do you think it makes a measurable difference in IAT?
     
    loginfailed, Sep 21, 2017
    #1048
  9. Sep 21, 2017 at 2:33 PM
    #1049
    Billy182

    #1049
    Billy182 Well-Known Member

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    It sure can't hurt, definitely worth it IMO.
     
    Billy182, Sep 21, 2017
    #1049
  10. Sep 21, 2017 at 2:34 PM
    #1050
    loginfailed

    #1050
    loginfailed Well-Known Member

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    What is your max MAF when you do a WOT datalog with the UCON?
     
    loginfailed, Sep 21, 2017
    #1050
  11. Sep 21, 2017 at 2:35 PM
    #1051
    Billy182

    #1051
    Billy182 Well-Known Member

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    I think it was 309 but I'll have to go back and check.
     
    Billy182, Sep 21, 2017
    #1051
  12. Sep 21, 2017 at 3:24 PM
    #1052
    Billy182

    #1052
    Billy182 Well-Known Member

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    Just got back from a little ride, belt slip seems gone!
    Like I mentioned earlier, overall very pleased with the truck, it makes the perfect driver now

    [​IMG]
     
    Billy182, Sep 21, 2017
    #1052
    BassAckwards, Biscuits, nfs257 and 6 others like this.
  13. Sep 21, 2017 at 4:50 PM
    #1053
    Roostfactor

    #1053
    Roostfactor Well-Known Member

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    HPT/justDSM tuned factory ecu, URD Headers, JFR Y-Pipe/l 3" exhaust, Walbro 255 fuel pump, Maggy SC (JFR ported), JFR ported lower intake manifold, 76mm tb, 2.5 pulley, 640cc injectors, CSF Radiator, custom electric fan wit Autocoolguy controller, JFR SC pulley wrap mod
    Very nice! I wanna take that little red thingy behind it for a spin!
     
    Roostfactor, Sep 21, 2017
    #1053
  14. Sep 21, 2017 at 5:11 PM
    #1054
    Billy182

    #1054
    Billy182 Well-Known Member

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    Lol, proof that given enough horsepower, even a brick can break 200
     
    Billy182, Sep 21, 2017
    #1054
    Roostfactor[QUOTED] likes this.
  15. Sep 21, 2017 at 7:30 PM
    #1055
    Torspd

    #1055
    Torspd Tor-nication

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    So when is this awakened beast getting and exhaust upgrade?!?!?! :boink:
     
    Torspd, Sep 21, 2017
    #1055
  16. Sep 22, 2017 at 1:02 AM
    #1056
    Billy182

    #1056
    Billy182 Well-Known Member

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    As soon as Gadget gets his new website straightened out. The URD y-pipe is listed as 10% off, but an error on the page isn't discounting it from list price. I also noticed the old forummember discount code isn't working at checkout. Does anyone know a new or different discount code that works?
    I'm hoping he fixes it, I would have already ordered it.

    Other than that, I'll start off keeping the stock cat back and hear how that sounds before going any further. Throaty is good, but I definitely don't want a raspy obnoxious sounding exhaust
     
    Billy182, Sep 22, 2017
    #1056
    oni06 and Torspd[QUOTED] like this.
  17. Sep 23, 2017 at 6:02 AM
    #1057
    Billy182

    #1057
    Billy182 Well-Known Member

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    I checked Gadget's site again this morning, and he has a new y-pipe listed for the 2x4 & 4x4 tacoma. Just placed my order!
     
    Billy182, Sep 23, 2017
    #1057
    Skootter14, gersus, Roostfactor and 2 others like this.
  18. Sep 26, 2017 at 10:16 AM
    #1058
    Billy182

    #1058
    Billy182 Well-Known Member

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    New URD y-pipe just arrived today. I've noticed the cross over pipe drops down low before meeting up with the passenger side pipe. Hopefully this won't be an issue with my lowered x-runner. I eyed it up and it looks like it may not drop lower than the crossmember brace, but I can't tell for sure until I get it fitted. Keeping my fingers crossed

    [​IMG]

    [​IMG]
     
    Billy182, Sep 26, 2017
    #1058
  19. Sep 26, 2017 at 10:21 AM
    #1059
    Torspd

    #1059
    Torspd Tor-nication

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    You purchased the 4x4 Y-pipe. It will still work.
     
    Torspd, Sep 26, 2017
    #1059
  20. Sep 26, 2017 at 10:31 AM
    #1060
    Billy182

    #1060
    Billy182 Well-Known Member

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    He only offers 1 now, it's supposed to be fine with both 4x2 and 4x4
     
    Billy182, Sep 26, 2017
    #1060
Page 53 of 86

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