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Thread: TheEvilZX2

  1. #61

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    Quote Originally Posted by TheEvilZX2 View Post
    Pretty sure I found the issue. Bad wire going to the fuel rail pressure sensor. Resoldered it. Its OK now, time will tell if its anything else...
    I'm telling you, it's one thing after another lol Have you done any pulls to assess times/hp?
    Quote Originally Posted by zxtwou2 View Post
    Making bigger pipe as the exhaust flowd and cools makes eddy currents ehich is what mskes rasp.

    Helping raise some cash for our long-timer ZX2Fast. Parts here: click me

    06/2016-TurdBo Vj11
    04/2011 - present: 1999 black zx2 (mtx)
    05/2009 - 04/2011: 1999 black zx2 (atx)

  2. #62

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    Times, no. But I've ran a few datalogs through virtual dyno and it puts me in the 180/190 HP range depending on the logs I feed it

    Sent from my SGH-M919 using Tapatalk

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    TheEvilZX2 Turbo Build Log - T3/T04E @ 8.5psi, PMAS HPX, TiAL MV-R, Synapse Synchronic BOV, 42# Injectors, 255lph fuel pump, SCT Tuned

  3. #63

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    Well now that the fuel pressure sensor is fixed it's reporting correctly and now at WOT the fuel pump duty cycle has dropped by about 10% and fuel pressure is very stable. I put about 70 miles on it yesterday and have been checking over all the logs and it makes me feel a bit better I've got some overhead with fueling once again.

    Since its passed emissions I've started back on leaning the fuel table out a bit. Currently commanding .81 lambda up top, but leaned everything else out a bit too. Still running good!

    I'll probably bump up to the next wastegate spring combo lol. Tial says the next combo is .7 bar or 10.15psi, I expect I'll see about 8 or 9 psi on the gauge. I won't be able to drive it today though, thunderstorms all day.

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  4. #64

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    swapped in the .7bar/10.15psi springs today after work. just got back from the first drive and holy crap. i didnt really boost it before in 1st because it would break the tires loose, but today she broke the tires loose in 2nd at wot

    best part of all this is my fuel pump is at .95 duty cycle and the fuel pressure is solid. so still "safe"

    i dont think ill bump the boost up again on the stock motor. im seeing about 8.5 psi now with these springs. i cant believe that stock motor pulls so damn hard, idk how much more it can handle lol

    guess its time to get these tires mounted and balanced soon....


  5. #65

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    i drove it to work on friday and got some good data on 8.5 psi. here it is in virtual dyno.

    if anyone is able to critique below values please do, id like to get as accurate a reading as possible.

    using stock MTX ZX2 weight but the car is partially gutted/carbon hood/no AC or PS/fiddy but the turbo kit i figured it would balance out, its got a 98 trans so im using the values i found for that, its on 205/45/16 tires, occupant weight is me plus 4 new tires in the trunk, drag coefficient and frontal area found by googling.

    virtual dyno_theevilzx2_8point5psi.png

  6. #66

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    Very nice! Dat 85 psi, tho.

  7. #67

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    Quote Originally Posted by Mimino View Post
    Very nice! Dat 85 psi, tho.
    Haha, well I couldn't name the files "GearX on 8.5 psi.csv" windows just wouldn't have liked that.

    But the car feels great. When its cold out I've got absolutely no traction in 2nd and brakes the tires loose in 3rd.

    I'm gonna need some wider tires here soon

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  8. #68

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    No idea wtf I was saying about the file name thing. That totally would have worked lol.

    Anyhow, been playing with histograms and going to try to do some fine tuning on a few things with the tune. Rebuilding my load with failed MAF table, as I see much more load than when I first put that table together.

    I've been talking to a guy at work who owns a BMW parts and tuning company and he's got access to a Lambo tuning shop on the weekends. I'm going to get a laptop to install SCT on so I can tune outside of the house and I'll take the car to the dyno for some real numbers. But this might not happen before the end of the year. We'll see...

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  9. #69

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    Its been cold and the car has technically been in "storage" for the winter. I haven't touched it for a while but managed to find a killer deal on a pair of focus central cam gears so I finally installed the new timing belt kit I've been sitting on for a while.

    No pics of it installed and the belt much more centered on the gears because I was surprised to find this when taking everything apart.


    That's the powder pulley I've had on for maybe 100k? I don't know really but many years. The belt ate into it about 0.03in, definitely contributed to the belt riding on the end of the cam gears.

    Anyhow I had a one piece crank timing gear and since I was in there swapped it out. Doesn't seem to be anything wrong with the ol two piece though.



    Pretty sure the car is in storage until march. It'll only be short drives here and there weather and road conditions permitting but there won't be much progress until then really. When I can I'll be testing to see where it/I like the intake cam set at and then start playing with VCT tuning this year... Still on the stock 180k+ mile motor.

    A larger fuel pump and shortly thereafter injectors will will be needed before I plan on swapping in the built motor so I can turn up the boost so I can find the next bottleneck. If I can make any magic happen with VCT in the tune I'm probably going to swap VCT back into the built motor. The built motor has the crower stg2 FI intake cam but stock exhaust cam with VCT delete and and adj cam gear. Anyhow just some thoughts on where this thing is going this year.

    Maintenance wise, it still needs tires and really needs a steering rack. I've got one, but I need to decide if I'm taking it apart to depower or maybe put power steering back in the car. I'm just not sure yet.

    Oh yeah saving for an mfactory diff..

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    Last edited by TheEvilZX2; 01-21-2018 at 12:12 AM.

  10. #70

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    Normal for the poweder udp. If you can, get that 2-piece washer from the early setup. That should help alleviate the eating problem. Honestly, just use the regular crank pulley if you're boosted. No need to wear the battery out lol I'm thinking about mfactory myself, but then i'd have to upgrade the clutch as well. Just waiting for the tranny to finally blow up here lol

  11. #71

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    ive still got the two piece, if i ever decide to run the powder pulley again maybe ill use the washer....hmm maybe on my daily?

    anyhow the turbo car has the stock pulley and everythings great now. i need to get to playing with intake cam settings now.

    i think im still on the centerforce clutch disc and pressure plate....used to run the ACT stg2 with the HD pressure plate but its no longer available. I loved the ACT and kinda didnt like the centerforce when i was NA because it felt closer to a stock pedal feel. but its holding the power currently so no complaints really

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