BW S300SX 88/75 results

Posted by 2gGSX, Jul 11, 2010
Dyno Talk - For all the DSM dyno queens. Discuss dyno results here. For tuning discussions, use the Tuning Forum.

  1. 2gGSX

    2gGSX Proven Member

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    [​IMG]

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    Went to dyno the car yesterday expecting like 550 whp or something. I knew it was fast from the 70-90 and 80-100 times, but I had no idea what kind of numbers to expect. Needless to say, I was pretty blown away when they told me what I ended up making--658 whp and 587 ft-lbs

    E85, V3 SD, 36 psi, stock 2g intake manifold, regular 2g head with some cams, and a freshly rebuilt stock trans. Could have ended a lot more disastrously!

    Some people were asking me about the misfire and smoke show at the end--the misfire was from the dyno operator hitting the clutch before letting off the gas, and the smoke is a lot of blow by.. need more crankcase ventilation.
    #1
  2. slowgsr

    slowgsr Proven Member

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    cool stuff man, self tuned and just went to the dyno to do some pulls?

    I think with some headwork and intake manifold you would pick up a ton of power uptop! Looks to spool fairly quickly too.
    #2
  3. aadperformance

    aadperformance Proven Member

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    what exhaust housing did you use?
    #3
  4. DSM_PWR

    DSM_PWR Proven Member

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    Congrats!

    Very nice number!

    Makes me wish i stayed with my 2g head and just ported it...
    #4
  5. THE_ARTIST_

    THE_ARTIST_ Proven Member

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    That thing sounds pretty nice, I wanted to get the BW 83/75. Congrats on the numbers.
    #5
  6. 2gGSX

    2gGSX Proven Member

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    Yep! It felt fast on the street, but I didn't really know what to expect. A SMIM would be really nice.. I'm waiting for a JMF Drag to pop up.

    1.0 divided T4

    I think that's roughly what the 362 is--take a look at the 88/75 as they updated the turbine wheel aerodynamics.

    Thanks guys! (a month or two later)
    #6
  7. GSTeclipse

    GSTeclipse Proven Member

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    nice numbers .... post some engine bay pics .... would like to see that exhaust manifold
    #7
  8. 2gGSX

    2gGSX Proven Member

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    #8
  9. MichaelSuch

    MichaelSuch Proven Member

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    Wow that's pretty impressive!
    #9
  10. OstarMotorsport

    OstarMotorsport Proven Member

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    great numbers ! What is this turbo comparable to in the Garrett or Precision side
    #10
  11. dsm-onster

    dsm-onster DSM Wiseman

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    Not bad! With that huge turbine wheel and housing, Im sure there must be a WHOLE lot more in it. Are you going to push it???
    #11
  12. 2gGSX

    2gGSX Proven Member

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    The compressor wheel is about the same size as a 4088R, or a "small 40R"

    Hopefully! Getting a SMIM and hopefully some cam gears to see how I can improve the top end. Car is currently getting an auto swap however, so I'm equally interested in dynoing it on the same setup to see what happens.
    #12
  13. ceedawg

    ceedawg Supporting Member

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    Any updates bro? I am following your car every step of the way mnus the stck intake mani.:thumb:
    Last edited: Apr 3, 2011
    #13
  14. 2gGSX

    2gGSX Proven Member

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    Spent a long time swapping to an auto but haven't changed anything else up. I'm going to dyno it again next weekend to see how much power I "lose". I'll probably put in the dual pump hanger and the intake manifold after that.

    The local track closed, but there's word of it reopening during the summer. Hopefully that works out, otherwise I'll be trailering it to KC or Chicago to run.
    #14
  15. ceedawg

    ceedawg Supporting Member

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    Anything new anxiously awaiting to hear your progress on the transmission and motor updates
    #15
  16. 2gGSX

    2gGSX Proven Member

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    I managed to lose something like 19.5% through the dyno, although it isn't quite that bad. There was a 60* jump in IATs on the dyno because one of my friends who helped put the car back together managed to not tighten down two intercooler hose clamps. Kind of a novice mistake not boost leak testing it before dynoing, but as always there was enough drama beforehand (like finishing an auto swap a few days before).

    Even with some boost holes fixed the IATs were still pretty bad, so I'm getting a 24x10.5x5 Garrett core made along with some extra "enhancements" I've always wanted to try out next week sometime, and having the UICP modified for the JMF Drag which isn't installed still. Not sure what direction I'll go with the fuel system. I'm contemplating running a surge tank setup over the Full Blown though. One night while tuning I ran the car down to around 5 gallons of fuel and managed to completely empty the fuel sump on a launch. Wasn't super thrilled about that.
    Last edited by a moderator: Jul 10, 2014
    #16
  17. ceedawg

    ceedawg Supporting Member

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    Any updates?
    #17
  18. 2gGSX

    2gGSX Proven Member

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    I love the car now--it runs safer and faster than ever now. I was trying to go to the 1/8th mile track yesterday but it got rained out. Next free weekend will be sometime in September.
    #18
  19. ceedawg

    ceedawg Supporting Member

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    Come on bro, you gotta give us some of the lovely details about the car now!:cool:
    #19
  20. 2gGSX

    2gGSX Proven Member

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    Pretty much the same plans as before--JMF Drag installed, the biggest off the shelf core Garrett sells, some ducting, and a surge tank with two Walbro 255 (GSL392's). All my old fueling issues are fixed, which actually fixed some of my old tuning issues. Bought one of the DSMLink BCS and it's stupid simple to use as well.

    Two concrete things I can say are that--
    1. AFRs are rock steady now thanks to not running out of pump, and not cavitating whatever pumps I do have
    2. The giant intercooler works. I'm seeing a 10-15* rise in IATs from stall to the top of 3rd, which is an incredible difference. Even in 90 degree ambient temps I never see more than 105 degree IATs. Some people can't even say that when it's 60 degrees out I bet.

    There's no easy measure of total performance like a 70-90 with a manual or even an 80-100 because of how the converter works, but it's definitely a lot faster than when I dropped it off. 6700-7700 in 3rd gear before took 3.8 seconds (fat passenger in car, crazy AFRs, crazy IATs, etc), and now it takes 2.8 seconds.

    Like I said, I have no idea what that translates to in track times or dyno numbers, I just know it's significantly faster.
    #20
  21. dsmusmc

    dsmusmc Proven Member

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    Would love to hear more. This is the setup im looking to get.
    #21
  22. ceedawg

    ceedawg Supporting Member

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    What fuel pump were you running b4 and injectors and which ducting are you talking about?
    #22
  23. 2gGSX

    2gGSX Proven Member

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    I was running a 255 in tank to an 044 inline before. Part of the problem was cavitating the in tank pump. It still supported a lot of power, but it was far from ideal for me.

    I got my transmission cooler ducted, and some ducting between my radiator and FMIC. The FMIC itself leaves nearly no space between itself and the bumper cover. Coolant temps while moving now are even better than they were with my old 3.5" intercooler! They do start climbing pretty steadily once I stop moving though, so I'm probably going to need a second radiator fan.

    I never ran two fans before because it would take 10-15 minutes of sitting still to push the car to 216-219* coolant temps. With amperage being at a huge premium right now, I'd prefer to avoid adding anything I didn't need. However, now it only takes 5-10 minutes to go to those temps, so it looks unavoidable.

    Here's a quick snap of the surge tank I got during test fitment:
    [​IMG]
    #23
  24. ceedawg

    ceedawg Supporting Member

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    Interesting setup. I am hoping to just go with one fuel pump a jayracing to feed some 2150 or 1450 cc FIC injectors. Can't wait to see what your car is dynoing now.:thumb:
    #24
  25. ceedawg

    ceedawg Supporting Member

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    Did you dump the car yet?
    #25

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