FP18g -> 265wtq & 289whp

Discussion in 'Modifications & DIY how-to' started by JJang12, Feb 22, 2006.

  1. JJang12

    JJang12 Active Member

    Yup, after stuck at topspeed for like 7hr, it was all done.

    Set up
    -------------------
    2004 wrx
    FP18G - TD05H
    Deatsch Modded Stock Injectors 850cc
    Crucial Racing Ceramic Coated UP & DP
    Stromung High-flow Cat
    Stromung 3" Dual tip Catback
    Perrin TMIC
    Perrin EBCS
    Stock BPV
    NGK Copper plugs (one heat colder)
    Walbro Fuel Pump
    EcuTek by TopSpeed

    Result is 265wtq and 289whp. I expected to break 300whp... but i guess my one cat & quiet exhaust are holding me back little bit.
    Boost builds up starting and 2.8-3k rpm and hits full boost (18.5psi) @ 3.8k rpm and holds till redline. Everything felt good driving back home. we shall see how they do in long run

    Highway pull is ridiculus. It just PULLs and PULLs. Wastegate sounds really cool when it tries to control excessive boost. :) Driving to school in downtown today, wasn't that bad. It has decent response at low rpm. Definately recommend 18g to all wrx owner.

    Hopefully, trey can post their dyno run
     
    Last edited: Feb 22, 2006
  2. miloman

    miloman Retired Admin

    nice numbers man... very close to what i expected when compared to my super16g... however i expected more lag
     
  3. JJang12

    JJang12 Active Member

    the lag isn't that bad as i worried. Some how, it feels like more smooth during traffic driving since the boost doesn't come on early.

    With stock turbo, if i press gas pedal too much, it jumps to 5psi. So i back out the gas pedal (to save gas and isn't necessary in traffic). With 18g, since it's more like N/A car, easier to modulate the pedal the way i want. If I want to go fast, there is always a technique called "downshift"
     
  4. miloman

    miloman Retired Admin

    yes it drives smoother in traffic... however, be careful of emergency situations when u have just upgraded ur turbo... for example, a situation when ur trying to merge into traffic and u instinctively think u have power but actually u only have another 700 rpm of lag
     
  5. slowwrx

    slowwrx Supporting Member

    Its pretty hard to break 300hp on pump gas with an 18g. I did it but then I had a AEM and a Front mount. Ill see if I can pull up my numbers, since I don't have that setup anymore I guess the numbers aren't really a secret. I think it was 309hp on Pump at 18psi, 348hp on a 50\50mix of pump and c16, 369hp on Straight c16 and I think that was 26psi which is really out of that turbos efficiency range.

    The 18g is a great turbo for the stock motor, spool times are good and it makes great topend power.
     
  6. Andy, it was nice meeting you at TopSpeed yesterday! :)
    I waited all night for the results of your set up haha
    I expected over 300whp but almost there... I hope to break 300whp being catless with fmic. :sx:

    However hitting full boost at 3.8k and all the way to redline should be fun! I can't wait to see you dyno graph... :)
     
  7. miloman

    miloman Retired Admin

    the hp gains r huge since the turbo comes alive at high revs... tq gains r not big since i believe its easier to make more torque at lower rpm

    more important than peak numbers is the area under the tq curve... even more important is area under the rpm band that u will use when racing...
     
  8. milo, you beat me to it before I could edit my post... haha

    GT wireless sucks or my laptop is just getting old :hsugh:
     
  9. miloman

    miloman Retired Admin

    im very ninja like that
    [​IMG]
     
  10. JJang12

    JJang12 Active Member

    As everyone predicts, the acceleration does NOT die!! stock turbo feels pretty bad after 5.5k rpm. Not with 18g. It just pulls consistantly all the way, and the same thing happens again at next gear as well.

    Milo, i think you are making more tq at lower range due to more boost. you are running 22 psi, right?? I was about to ask doug to crank up more, but more tq = more stress on transmission = earlier failure of transmission. 265wtq is just little bit more stress to the transmission compare to my old 250wtq. If I want more power, I can add meth injection. OOPS... i said that already...

    mike, nice meeting you as well. I'm sure that you will easily go over 300 whp with much higher wtq #. I want to find out how much lag FMIC add. I want to be catless, but gotta leave little more cleaner environment for my future generations.:rofl:
     
    Last edited: Feb 22, 2006
  11. Alex

    Alex Community Founder Staff Member

    Well, its understandable to acheive more whp than ft lbs because you are going with a larger turbo on a smaller block. Smaller turbo, larger block has the opposite effect. More torquey, less top end go. So the difference there is understandable.

    Is this with stock injectors?
     
  12. JJang12

    JJang12 Active Member

    I used modded stock injectors (updated first post)
     
  13. Are you sure they are 850cc? I thought they only make 630 & 800cc.

    Do you know the duty cycle of those injectors at full boost? I'm trying to decide which injectors I should get... ;)
     
  14. Genya

    Genya No Longer Up At Odd Hours

    Nice job man! :)
     
  15. JJang12

    JJang12 Active Member

    They are flow tested @ ~850cc static ~770cc dynamic
     
  16. JJang12

    JJang12 Active Member

    Area under the curve Does matter

    [​IMG]


    I just made this dyno graph from excel. It shows the power pretty well. Compare the horsepower between two turbos. I gained almost 90whp near the redline. WOW~!!

    Also I just ended up scanning the dyno print out. Seems like trey is too busy.
    [​IMG]
     
    Last edited: Feb 24, 2006
  17. Weapon

    Weapon 90lbs of dynamite Supporting Member

    very respectable #'s!
     
  18. Alex

    Alex Community Founder Staff Member

    Its interesting to see the comparison between the 18G and stock turbo.
     
  19. Cool_____

    Cool_____ Banned

    Yep my dyno of the 18g with the Perrin FMIC before its last mod was 304 hp and 298 tq. Now do you really want to wake that 18g up?

    Two words.....METH INJECTION! Now sitting at 350 hp.

    SS tuned me with meth inj. and the car simply WOKE UP AND SCREAMED! Running 11.9's in the 1/4 with no traction in 1st gear and chirping 2nd (crappy street tires even though they are 225/45/17's).
     
  20. JJang12

    JJang12 Active Member

    I'm thinking about doing meth injection as well. I just want to break the magic 300whp. :)

    BTW, now i'm hitting full boost (18psi) around 3500rpm at 4th and 5th gear. I had exhaust leak problem, and now it's gone.
     
  21. Cool_____

    Cool_____ Banned

    You should be able to break 300 without Meth if your car like timing like most do. Mine didn't until I added the Meth.
     
  22. bluetwo

    bluetwo Active Member

    Good stuff and stuff....


    Yeah.
     
  23. miloman

    miloman Retired Admin

    yeah man... meth will make u real happy.... im going into withdrawls right now since i have so much sitting in my closet but am unable to use it
     
  24. rolling_trip

    rolling_trip Active Member

    speaking of which, i need to get a few bottles from you. Oh yeah go meth :D
     
  25. JJang12

    JJang12 Active Member

    I think my one high flow cat is robbing 10.49whp from the magic 300whp. :rofl: :rofl:

    Does anyone have have any experience with Cooling Mist?? It's located in ATL area. Whenever I get a chance, I'm gonna stop by its store.
     
  26. Alex

    Alex Community Founder Staff Member

    no, what is it ?
     
  27. miloman

    miloman Retired Admin

    i think its water injection
     
  28. Cool_____

    Cool_____ Banned

    Cooling Mist is the same thing as Snow Performance and SMC. It is a highly developed water injection system and it can use meth. It also use highly advanced 2d maps (sorta like the Ecutek maps when SS tunes) and also has a fail safe option.
     
  29. JJang12

    JJang12 Active Member

    there website is www.coolingmist.com and there store is next to NOPI on Jimmy Carter Blvd/ Buford Hwy intersection. Also, I talked with the Owner on the phone before, and he was very willing to help out his customer.

    Alex, contact him for our new vendor.
     
  30. coolingmist

    coolingmist New Member

    Thanks everyone for your support, its appreciated!
     
  31. Kokopelli

    Kokopelli Active Member

    It looks to me like its not running as much knock correction as it could at around 4200 rpms. It causes your torque curve to flatten out where the timing is pulled. Your torque curve should peak at around 275 at 4500 rpms and taper back down to where it crosses at 5200 rpms. Its not affecting your peak hp but you are losing a little area under the curve. It could be from the TMIC getting heatsoaked.

    I bet with some 100 octane and without additional tuning you'd pick up that extra torque.
     

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