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Old 11-29-2005, 12:00 PM   #1
billy boi
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Default wat is the recommended turbo for jdm sti v8 ?

I'm doing a jdm sti v8 swap soon into my 2003 wrx . And I wanted to use a new turbo and swap it in right when I swap my v8 motor in . The vf37 twinscroll seems cool . But I'm at a vf34 right now on my WRX motor and I heard that they're similar . So I rather move onto the next step . I was thinking either vf22 or super 16g but that is like a small step . What would be the next step ? I know that with the jdm v8 , if I want to switch turbo , I would also have to change the up pipe and exhaust manifold . So I am aware of that . Oh, the purpose of this car is a daily driver , never to the track type . But I want it to haul ass on the highway . With my vf34 , on the highway , its straight poop . But keep in mind I don't want no crazy big turbo . Something that would be a good match for the jdm v8 sti swap .
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Old 11-29-2005, 12:26 PM   #2
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Are you planning on doing EM? If not, you might want to stick with the stocker that the v8 ECU is mapped for.
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Old 11-29-2005, 04:59 PM   #3
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Oh yea . Of course I'm going to do engine management . Right now , I have ecutek and I love it . And my first EM was cobb accessport . But I didn't like it . Ecutek is like 3 times better than cobb . And with the jdm ecu , I plan on using ecutek .
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Old 11-29-2005, 06:17 PM   #4
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Oh yea . Of course I'm going to do engine management . Right now , I have ecutek and I love it . And my first EM was cobb accessport . But I didn't like it . Ecutek is like 3 times better than cobb . And with the jdm ecu , I plan on using ecutek .
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Old 11-29-2005, 06:34 PM   #5
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Quote:
Originally Posted by billy boi
With my vf34 , on the highway , its straight poop .
lucky bastard, theres me over here with a vf-11 ok??

...
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Old 11-29-2005, 08:01 PM   #6
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Lol . Wat is a vf-11 from ? Please . Anyone wit any inputs ?
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Old 11-29-2005, 08:15 PM   #7
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How much power do you want Billy? Call me tomorrow at the shop and we can talk turbos!
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Old 11-29-2005, 09:28 PM   #8
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18G is a nice medium sized turbo.
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Old 11-30-2005, 07:28 AM   #9
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Yea 18g is nice . I'm just thinking if its too big for a 2.0 ? Isn't there a tdoh-5 and tdoh-6 ?
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Old 11-30-2005, 10:23 AM   #10
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I would drive around on that VF37 first before you go planning any turbo swaps. I know def liked his and it made pretty good power at stock levels. He managed a 12.01 1/4mile with his VF36, same as the 37 only with roller bearings.
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Old 11-30-2005, 01:10 PM   #11
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there is a total of 3 correct answers to this question

A: pe1825
b: zerosports twinscroll trubo
c: send turbo to deadbolt and make a pe1825 clone for ~500

i choose c
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Old 11-30-2005, 01:13 PM   #12
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Alright, what about a 16G then?

I think the PE stuff is overpriced for the power you get.

A twinscroll 1825 clone would rock though. Good power with a little more topend. Just enough to make the highway a little more fun while not compromising your bottom end too much.
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Old 11-30-2005, 07:39 PM   #13
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Damn holy s**t . I just got off the phone with mike at kingpin . Damn , for the gt30r kit , which by the way is so tempting , 350-400hp on pump gas . Oh I wonder how that feels . But I totally forgot about injectors,fuel rail and utec with the gt30r kit owould total up another $5k . So $10k total for jdm v8 swap woth gt30r . Is there any other bolt on turbo I could get ? What is the next closest thing to a gt30r without buying a kit .
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Old 11-30-2005, 09:07 PM   #14
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billy boi: hey, there's going to be two billys with Ver8's here LOL.


Anyone besides def try an SZ49 with a Ver8 SpecC?
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Old 11-30-2005, 09:50 PM   #15
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fpgreen/sz49/avo450

these turbos give the biggest, fattest, powerband. See here:

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Old 11-30-2005, 10:46 PM   #16
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those turbo's make the engine look like they need some displacement, higher compression or antilag

sz49 would get my vote but then again I'm not looking for a drag-race/all top end set up
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Old 12-01-2005, 12:44 AM   #17
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anyone have a dynochart for a 2 liter with GT30R?
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Old 12-01-2005, 07:17 AM   #18
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Hmm , its seems like a toss up now between the green and sz49 . But it seems that u have to run 23psi for the green when u can run the sz49 at 21-22psi to achieve the same boost . I'm looking to get 330whp with a jdm v8 and RA gears . Out of the 2 turbos , which would get me there first with the lower psi . And what's the risk of running 23-25psi daily ? And also, could I do an internal gate instead of doing external ? It seems complicating. Could anyone explain to me ?
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Old 12-01-2005, 07:33 AM   #19
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Wonder how the deadbolt PE1825 clone compares?
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Old 12-01-2005, 07:58 AM   #20
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I have been wanting to try a super 16g, with a tdo6, and external gate on an Ej207. I think it would be an awesome street turbo..

The 30r would be nice, you could modify your injectors for free, you already have a front mount so you are pretty much set for that turbo kit. Depending on your power goals, would depend on weather i would choose the 3071, or 3076.

I would most definetly sell off the twinscroll parts, and get a different turbo configuration.
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Old 12-01-2005, 07:59 AM   #21
billy boi
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Yea . I was reading up about the pe1820 clone . The turbo that is more comparable with the pe1820 is the 18g . And both turbos are around the 300-310 whp range . I was kinda looking for the next step up . Which I would believe is 20g , green , sz49 and avo450 . But out of these 4 I think I would prefer either green or sz49 . But I'm going to call up jerry at deadbolt to hear some details about the 18g , 20g and sz49 .
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Old 12-01-2005, 01:13 PM   #22
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Quote:
Originally Posted by billy boi
Damn holy s**t . I just got off the phone with mike at kingpin . Damn , for the gt30r kit , which by the way is so tempting , 350-400hp on pump gas . Oh I wonder how that feels . But I totally forgot about injectors,fuel rail and utec with the gt30r kit owould total up another $5k . So $10k total for jdm v8 swap woth gt30r . Is there any other bolt on turbo I could get ? What is the next closest thing to a gt30r without buying a kit .
Just giving you a heads up:
http://forums.nasioc.com/forums/show...&page=39&pp=25
I say bolt on a green and be happy. Either that or just use the twinscroll reworked from deadbolt. Nice turbo with really good response
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Old 12-02-2005, 10:56 PM   #23
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Billy if you want to sell all the twin scroll stuff let me know...hell I'm even local =)

With that said some of those cars in those charts are making sick power
Mike
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