my new 2.4 gt4088r build (with dyno sheet)

Posted by dsm's can fly, Dec 12, 2011
Dyno Talk - For all the DSM dyno queens. Discuss dyno results here. For tuning discussions, use the Tuning Forum.

  1. dsm's can fly

    dsm's can fly Proven Member

    DSM Profiles:
    1
    Joined:
    May 3, 2008
    Posts:
    73
    Likes Received:
    0
    Buford, Georgia
    I finally after a long week of putting it back together i have hit the dyno and made some pulls. There were defiantly some set backs but it seems to be running good now.

    the final was 631.80 hp uncorrected and 495.01 tq @ 20.5 psi

    the build is a 2.4 6 bolt

    stock 4g64 crank
    Delta kelford regrinds 272
    ported head
    1mm oversized valve
    ferrera dual valve springs
    custom high compression weisco HD pistons
    eagle rods
    gt4088r turbo t4 w/88 a/r (i think)


    this was all done on e-85.

    I will try to add dyno sheets tomorrow
    Last edited: Dec 12, 2011
    #1
  2. jimbob_843

    jimbob_843 Proven Member

    DSM Profiles:
    1
    Joined:
    Mar 11, 2010
    Posts:
    502
    Likes Received:
    1
    Dorchester, South_Carolina
    Got any pics or videos of this beast? And what compression exactly are the pistons?
    #2
  3. canada4g63

    canada4g63 Proven Member

    DSM Profiles:
    1
    Joined:
    Jun 6, 2009
    Posts:
    402
    Likes Received:
    2
    Cleveland, Ohio
    Got alot of growing room. Thats alot of power for 20psi
    #3
  4. dsm's can fly

    dsm's can fly Proven Member

    DSM Profiles:
    1
    Joined:
    May 3, 2008
    Posts:
    73
    Likes Received:
    0
    Buford, Georgia
    here is a picture of the last pull. This is only about the 10th pull on this new motor. so we have not had a chance to play with timing really at all. it was about 12.5 degrees of timing up top.


    I am trying to upload a few pictures as i speak :thumb: .

    as for the compression there is a little debate on that... Weisco messed up the order a few times so this is the third set of custom pistons they made for me. that being said they were supposed to be 11:1 but from what i have seen they are a lot higher. I waited almost a year just to finally get this set that would work so i used it any way. the compression tester reads 245 psi across all 4 cylinders with the kelford cams so i guess what ever compression that is??

    i hope this build helps the debate over high compression and e-85.

    Attached Files:

    #4
  5. turbotalon1g

    turbotalon1g Proven Member

    Joined:
    Oct 19, 2005
    Posts:
    718
    Likes Received:
    2
    Blaine, Minnesota
    Nice work, do you have a graph with boost I'd love to see how this spools.
    #5
  6. dsm's can fly

    dsm's can fly Proven Member

    DSM Profiles:
    1
    Joined:
    May 3, 2008
    Posts:
    73
    Likes Received:
    0
    Buford, Georgia
    For any one doubting the compression here is the block assembled with pistons. :D

    sorry i do not have a graph with boost. the dyno is not set up with one. i do have the log files on the aem. If you want just PM me and i can send them. I am trying to upload a video that shows the boost gauge though if that will help a little. :thumb:

    here are some pictures of the engine.

    I got one of the videos up sorry for the very shaky camera it was a cell phone. this video is the only one i have that shows the boost gauge. it is blurry but you can see it spike 20 psi on this run then tapper to about 16.5-17.0 then spike a little to 18 at the end. this run made 580 ish. we added 2 degrees of timing and a pound of boost to make the 630 hp number. sorry no video of that one.

    <iframe width="560" height="315" src="http://www.youtube.com/embed/pX9-KT6EGcY" frameborder="0" allowfullscreen></iframe>

    Attached Files:

    #6
  7. killercolt

    killercolt Proven Member

    Joined:
    May 23, 2008
    Posts:
    284
    Likes Received:
    4
    Acworth, Georgia
    If you are going to make a video, you can at get a view of my beautiful face. LOL.
    congrat.
    #7
  8. dsm's can fly

    dsm's can fly Proven Member

    DSM Profiles:
    1
    Joined:
    May 3, 2008
    Posts:
    73
    Likes Received:
    0
    Buford, Georgia
    I think you meant to say "you can at least get a view of my face :tease:" I just did not want to scare anyone that's all.

    All kidding aside thank you for all the work on the tune.
    #8
  9. greengoblin

    greengoblin Supporting Vendor

    DSM Profiles:
    1
    Joined:
    Mar 10, 2006
    Posts:
    1,009
    Likes Received:
    30
    McKinney, Texas
    Killler setup you have there. Look forward to seeing what happens when you turn up the wick!

    Kevin
    #9
  10. dsm's can fly

    dsm's can fly Proven Member

    DSM Profiles:
    1
    Joined:
    May 3, 2008
    Posts:
    73
    Likes Received:
    0
    Buford, Georgia
    Thank you for the nice comments, I hope to really turn this thing up in the not very distant future. my only concern is that something might be impeding airflow... maybe my intercooler end tanks. further testing will see though.
    #10
  11. Bo0sTdTsI

    Bo0sTdTsI Proven Member

    DSM Profiles:
    1
    Joined:
    Jan 21, 2010
    Posts:
    233
    Likes Received:
    0
    Amarillo, Texas
    Damn nice set up, can't wait to see it at 30lbs,
    #11
  12. dsm's can fly

    dsm's can fly Proven Member

    DSM Profiles:
    1
    Joined:
    May 3, 2008
    Posts:
    73
    Likes Received:
    0
    Buford, Georgia
    me to but i don't know if it will get there with the current compression. We will see though. It was making 583 @ almost 18psi and went to 630 @ about 20psi. (trying to remember with out checking the logs) so we are picking up about 23-25 hp per pound of boost right now. that would make it a theoretical 830 hp @ 30 psi. which i really don't think can happen. but non the less it should be nice. :cool:
    #12
  13. greengoblin

    greengoblin Supporting Vendor

    DSM Profiles:
    1
    Joined:
    Mar 10, 2006
    Posts:
    1,009
    Likes Received:
    30
    McKinney, Texas
    What intercooler are you guys running?
    #13
  14. skatershawn

    skatershawn Proven Member

    DSM Profiles:
    1
    Joined:
    Feb 27, 2009
    Posts:
    926
    Likes Received:
    8
    Austin, Texas
    What size injectors are you running?
    #14
  15. dsm's can fly

    dsm's can fly Proven Member

    DSM Profiles:
    1
    Joined:
    May 3, 2008
    Posts:
    73
    Likes Received:
    0
    Buford, Georgia
    I am running the vr speed factory short route. I think it will sustain the power but we will have to cut the cold side endtank and expand it. And then reroute the piping around the core support like a non short route. This is just a thought though there still is no proof that the end tanks are to small. More testing will tell

    They are Bosch 1600 cc
    #15
  16. rhamlinii

    rhamlinii Proven Member

    DSM Profiles:
    1
    Joined:
    Nov 8, 2003
    Posts:
    562
    Likes Received:
    2
    Baltimore City, Maryland
    A 4088 turbo isn't a huge turbo. Rich G had one on his car. He had hks 272/272 cams and 7.5 to 1 compression. He still was able to spool that 63mm turbo to 35psi in 3rd gear by 5000-5300. That turbo is known for spooling fast and moving alot of air. I believe it's rated for 80 pounds of air, right? I still think your numbers are awesome, for only 20 psi. How high do you plan to rev the engine?
    #16
  17. dsm's can fly

    dsm's can fly Proven Member

    DSM Profiles:
    1
    Joined:
    May 3, 2008
    Posts:
    73
    Likes Received:
    0
    Buford, Georgia

    the compressor map i was looking at on the Garrett website looks like about 70lb min. That being said there are a few people who have made more than 700 hp. I know Tim Zimmer being one of them. As for the boost i will probably not take it past 30 psi. that is a guess though at this point because i will raise it up until the tune becomes unsafe. I am looking to make a little over 700 hp, so far i think i am on track, time will tell though.
    #17
  18. killercolt

    killercolt Proven Member

    Joined:
    May 23, 2008
    Posts:
    284
    Likes Received:
    4
    Acworth, Georgia
    if we don't see 30psi this weekend, we are going to stop being your friend. ngoc went to 30psi+, steve went to 30psi, and i went to 30psi. now we need to see you go to 30psi.
    #18
  19. dsm's can fly

    dsm's can fly Proven Member

    DSM Profiles:
    1
    Joined:
    May 3, 2008
    Posts:
    73
    Likes Received:
    0
    Buford, Georgia
    your just hating,

    Ngoc has a 50 trim on low compression

    steve has a 6262 stock housing on low compresion

    you have a 35r and....... yeah okay you can talk. a little bit captain boost spike :sneaky:
    #19
  20. cherrod8

    cherrod8 Probationary Member

    Joined:
    Nov 26, 2009
    Posts:
    19
    Likes Received:
    0
    Hampton, Virginia
    What rods did you use were they 150mm?
    #20
  21. dsm's can fly

    dsm's can fly Proven Member

    DSM Profiles:
    1
    Joined:
    May 3, 2008
    Posts:
    73
    Likes Received:
    0
    Buford, Georgia
    they are stock length eagle rods
    #21
  22. BIGBLAZE79

    BIGBLAZE79 Proven Member

    DSM Profiles:
    1
    Joined:
    Jan 10, 2006
    Posts:
    227
    Likes Received:
    3
    Mesa, Arizona
    Why do the cylinder walls look so shiny? It looks like you had them chromed. It that some kind of new coating?
    #22
  23. dsm's can fly

    dsm's can fly Proven Member

    DSM Profiles:
    1
    Joined:
    May 3, 2008
    Posts:
    73
    Likes Received:
    0
    Buford, Georgia
    It is just fresh from the machine shop. very clean and i just oiled it down. there was also a flash on the camera. it does look shiny though.
    #23
  24. cherrod8

    cherrod8 Probationary Member

    Joined:
    Nov 26, 2009
    Posts:
    19
    Likes Received:
    0
    Hampton, Virginia
    So you had to get Wiseco to custom make some pistons in 87mm or did they carry that size instock?

    Sorry for all the questions I'm building a motor using the same block but it isnt staying 2.4l and I'm very impressed by your build. It's very simple and very effective.
    #24
  25. dsm's can fly

    dsm's can fly Proven Member

    DSM Profiles:
    1
    Joined:
    May 3, 2008
    Posts:
    73
    Likes Received:
    0
    Buford, Georgia
    Wiseco does carry 87 mm pistons in stock specifically for a 2.4 with a 4g63 head. however if you are not staying 2.4 you will probably have to custom order your pistons because. if you are going destroked you need 4g63 stroker pistons because the pin is moved up for the increase in rod length.

    as for the simple part kinda is the best answer i have a lot of work done to the head on my car. as well it took three or four sets of custom piston orders to get the pistons i am using now. it also took over 8 months for wiseco to get them to me correct. and dont forget that proper tuning is the best mod of all and critical to a good motor.
    #25

Share This Page