My blouch 16gxt 8cm^2 build
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This is a discussion on My blouch 16gxt 8cm^2 build within the Builds forums, part of the Tech & Modifying & General Repairs category; ****[ UPDATE **** Ended up going with just the MBC and ran speed density Car got around 290+ hp and ...

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    Registered User Acrdys's Avatar
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    My blouch 16gxt 8cm^2 build

    ****[UPDATE****

    Ended up going with just the MBC and ran speed density
    Car got around 290+ hp and 310wtq
    Ed said it hit 300 on the dyno but he had to tune it down a little for stability's sake.
    Car feels amazing, EWG sounds clean.
    Redline is now 7000rpm, and it comes up fast compared to the stocker.
    Will post dyno when ed sends it in b/c i forgot it @ his shop.


    ****[UPDATE****


    Hey guys. I finally set-up an appointment for my blouch 16gxt 8cm^2 build with ed@eqtuning on august the 17th.

    I'm really excited by the way everything worked out getting all my parts together after months of tech talk over the phone and posting/reading threads on the internet.
    My main goal for the car is auto-x and I initially opted for the vf-48. One thing led to another and I ended up settling with the 16gxt.

    One thing I wasn't able to find out was the amount of power I'm expecting out of this build. Yes, there are 2.0L's out there running the 7cm^2 version but I'm on a 2.5L with a 8cm^2.

    I went ahead and asked ed on how much power I can get out of this build and even he said himself that he's never tuned anyone with this specific turbo on this motor with the supporting mods that I have.

    So here's my question... what can I expect out of this build? Anyone wanna post dyno's of a similar build?

    2.5L 2007 wrx /w CA-91 octane:
    Blouch 16gxt 8cm^2 coated
    TurboXS TMIC
    Grimmspeed 38mm v-band EWG
    Invidia N1 tbe (high flow cat)
    DW 750cc injectors
    Walbro fuel pump
    Grimmspeed EBCS
    NGK 1-step colder plugs

    gahhhhhh can't wait to do my next event on this tune and Hankook RS3s X.X. Hoosiers for next year ^.^
    Last edited by Acrdys; 08-18-2012 at 01:08 PM.
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    zax
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    16G-XT will make similar power to an 18G with lower compressor outlet temps and quicker spool. The TD05 turbine is a little on the small side for the 2.5L, but the 8cm^2 housing should flow better for the 2.5L.

    I'd expect 315-325whp with supporting mods.
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    Master Baiter EJ257's Avatar
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    Ed calibrated his dyno not to inflate egos. Pair that with the garbage gas you have, I wouldn't hope for over 300whp. I'd guess closer to 275whp.

    I believe the turbo has the TD05 compressor housing, so that will limit you up top a bit (that's why I always felt Blouch was better matched to the 2.5L over FP with the 18G/20G using the TD06 comp housing). The EWG will help quite a bit with the TD05 exhaust wheel, and will get decent spool.

    What do HTA68s do on his dyno? Another mismatched turbo on the 2.5L with a slightly larger compressor wheel. I wouldn't be surprised if you were 15-20whp below that.
    Last edited by EJ257; 07-27-2012 at 11:40 AM.
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    zax
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    Quote Originally Posted by EJ257 View Post
    I believe the turbo has the TD05 compressor housing, so that will limit you up top a bit.
    Yes, you're right. The TD06 compressor housing isn't used for the 16G/16G-XT, but it is for the 18G and 20G (unless you consider mine, which evidently is not!!)

    EDIT: Whoops, I see you already said that
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    zax
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    Quote Originally Posted by EJ257 View Post
    What do HTA68s do on his dyno? Another mismatched turbo on the 2.5L with a slightly larger compressor wheel. I wouldn't be surprised if you were 15-20whp below that.
    Oh you ninja editing bastage!! Since the 18G wheel is 68mm, I'm going to guess that the 68HTA is FP's version the 18G-XT, which can hit 30-40whp higher than the 16G-XT. Personally, I'm excited to see some dyno results of the 18G-XTR...
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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by zax
    Oh you ninja editing bastage!! Since the 18G wheel is 68mm, I'm going to guess that the 68HTA is FP's version the 18G-XT, which can hit 30-40whp higher than the 16G-XT. Personally, I'm excited to see some dyno results of the 18G-XTR...
    FP rates the turbo @ 47 lbs/min. What is the 16G-XT? 41?
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    zax
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    Quote Originally Posted by EJ257 View Post
    FP rates the turbo @ 47 lbs/min. What is the 16G-XT? 41?
    41 lbs/min yeah.
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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by zax View Post
    41 lbs/min yeah.
    I've never seen the HTA68 perform anywhere near the advertised flow rate of 47lbs/min, so I'd put it a little bit closer. 20-30whp difference isn't a big stretch between the two.

    Edit:
    Just found a thread where a GTX3071 put down 340whp on pump. Considering the size difference, I stand by my sub-300 guess.
    Last edited by EJ257; 07-27-2012 at 12:03 PM.
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    Registered User Acrdys's Avatar
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    It was actually tough for me to guage a mismatched turbo (smaller) to the 2.5L vs. response time and spool. I don't exactly get a chance to ride along with very many local wrx;s running different turbo setups. I figured I'd stick with the 16gxt and save the 18gxtr if I find myself wanting more power for auto-x. Maybe more track days when I finish school.

    As far as the difference between my current setups with the stock turbo goes and the new one... I will notice a difference yes? I'm getting worried I won't be able to "feel" a difference.
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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by Acrdys
    As far as the difference between my current setups with the stock turbo goes and the new one... I will notice a difference yes? I'm getting worried I won't be able to "feel" a difference.
    For the money you're investing, you will likely be disappointed. There will be a noticeable difference, but it won't be all that drastic.
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    zax
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    Quote Originally Posted by EJ257 View Post
    For the money you're investing, you will likely be disappointed. There will be a noticeable difference, but it won't be all that drastic.
    To a 16G-XT? That's a good 100whp+ jump over stock and 80whp jump over stage 2. I highly doubt that he will be disappointed.
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    Quote Originally Posted by EJ257 View Post
    For the money you're investing, you will likely be disappointed. There will be a noticeable difference, but it won't be all that drastic.
    That's hard to believe >.< my td04 is drastically smaller. shouldn't the difference between the two be night and day?
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    zax
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    Quote Originally Posted by Acrdys View Post
    That's hard to believe >.< my td04 is drastically smaller. shouldn't the difference between the two be night and day?
    It's really not drastically smaller...

    The stock TD04 on the right compared to my Blouch TD05H-18G (with TD05 housing, not TD06 housing)

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    Registered User Acrdys's Avatar
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    is there a reference to why you keep emphasizing the fact that your 18g isn't a td06?

    Also, is it safe to compare 2.5L td04 graphs to standard 16gs to compare on how my power curve will be affected.
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    zax
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    Quote Originally Posted by Acrdys View Post
    is there a reference to why you keep emphasizing the fact that your 18g isn't a td06?
    Oh yes. Personal pain.

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