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Old 09-26-2007, 07:56 PM   #1
v8eaterWRX
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Default what would swic do?

I am looking to do a turbo upgrade, but keep hitting hurdles. I am looking for around 350whp down the road, but for right now just break into the 300's on a conservative tune. My current setup yeilded me 280whp @ 18psi in over 100 degree temps, but I just want a little more

I first thought I would buy Virgils 20g, but the TD06 will have a very late spool on my 2.0l. Late spool is ok as I do not run the quarter mile nor do I autocross, but that will be a bit later than I would like. I mainly play on the freeways.

The two turbos I am currently looking at are the TD05 18g 7cm and the TD05 18g 8cm. Both are within my price range on turbochargers.com.

Based on what I am looking for and/or personal experience, what turbo should I buy? It doesn't have to be an 18g, just something that is rebuildable and will make power when and if I go to a 2.5l.
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Old 09-26-2007, 08:22 PM   #2
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Blouch turbo, get your VF22 modded to a 18g TD05 for $349.00, they have a quick turnover and do a good job, that way you can keep your EWG, but then again if you do that I won't be able to buy it :-(

http://www.blouchturbo.com/turbos/IH...essor_Upgrade/
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Old 09-26-2007, 08:24 PM   #3
v8eaterWRX
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When that is done, does it make it rebuildable or does it still carry the IHI curse?
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Old 09-26-2007, 08:43 PM   #4
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ahhhhhhh brock u crack me up
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Old 09-26-2007, 08:46 PM   #5
v8eaterWRX
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dont hate jay! this is all because of your peer pressure and letting me drive your car!
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Old 09-26-2007, 08:52 PM   #6
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it will be difficult to get 350hp out of an 18g on a conservative tune. i would think a td05 20g will be easier.
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Old 09-26-2007, 10:16 PM   #7
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Quote:
Originally Posted by sunnyniazi View Post
Blouch turbo, get your VF22 modded to a 18g TD05 for $349.00, they have a quick turnover and do a good job, that way you can keep your EWG, but then again if you do that I won't be able to buy it :-(

http://www.blouchturbo.com/turbos/IH...essor_Upgrade/
me thinks i might be doing this when the car has downtime again in the near future for the ra's
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Old 09-26-2007, 10:45 PM   #8
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I'd go with a gt30r.

hahaha, in all honestly I havnt done enough research to answer your question properly. From what i've read on both the turbos you stated above i'd have to agree with Digital. If what you really are looking for is just freeway pulls then get a larger turbo because the longer spool time wont be as noticeable at higher speeds. Also when/if you upgrade to a 2.5L then it will give you more room to make more power instead of having to buy a new turbo to support your new power/larger motor needs.
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Old 09-26-2007, 10:59 PM   #9
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If you only planning on more power for the freeways, I wouldn't worry too much about turbo selection. If you keep playing on the freeways, your gonna lose your ride anyways!
But seriously, just crank the boost to 24 psi and be done with it!

Last edited by John2.5RS; 09-26-2007 at 11:04 PM.
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Old 09-26-2007, 11:05 PM   #10
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A GT30R with a JDM STi 2.0L is an awesome setup and will do 400whp on pump gas. Not sure that is such a good idea on a USDM 2.0L though..
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Old 09-27-2007, 12:14 AM   #11
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Thanks for those who are giving relevant information

As for 24lbs of boost, I'm not a noob
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Old 09-27-2007, 04:06 AM   #12
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I just don't understand your logic in spending more money on a bigger turbo that will be less responsive, especially on your US EJ20, just so you can have more pull at speeds you shouldn't be driving on public roads. help me see your logic in getting a different turbo, maybe I can give you a better response. Regardless of which turbo you choose, your going to be limited by our chitty fuel. 350 whp with a stock USDM WRX ej20 on pump gas is kinda a stretch, regardless of turbo size. Why don't you just turn up the boost a little? If you get too big of a turbo, your gonna be kicking yourself in the ass when your putting around town off boost, especially with an 8:1 compression 2.0L w/o AVCS. If your just into little street races, you'd be happier with a smaller turbo that will be more responsive, Like you said, your not gonna race down the 1/4 mile, wouldn't you rather have a car that's quicker from 0-100mph as opposed to 50-150mph? How often are you going over 100 mph on a daily basis?

And what's wrong with 24 lbs. of boost?

Last edited by John2.5RS; 09-27-2007 at 04:16 AM.
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Old 09-27-2007, 09:34 AM   #13
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brock

this question is hard to answer without reviewing the selected turbo's efficiency ranges

not to mention what intercooler you are running



one thing is for certain - BEFORE you do anything you should be upgrading ur tranny or you wont be spoolin @ 12mph for very long



john has a good point - dependin on the effeciency of the turbo you currently have and the intercooler - why not turn up the boost?

i ran 28psi on my vf39??? - which turned into a hair dryer after 22psi or so
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Old 09-27-2007, 10:31 AM   #14
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Old 09-27-2007, 11:50 AM   #15
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Right now, sadly, I am number chasing. I am happy with the performance of my VF22 with the exception of the top end weezing. In all reality, how often do I go over 100, not to much. As for the intercooler, I am currently running an STI tmic, but have been toying with doing a FMIC.

The breakdown for my logic is this. My 2.0l probably will not be in the car for more than 6 months. The VF22 on an STI longblock is not going to be anywhere near what I want. If I sell my VF22 and pick up something like an 18g/20g I can use that turbo on the 2.5l when I get it as well as opposed to having a paper weight with the VF22.

Like I said, right now I am kicking around ideas to try to see what makes more sense and wastes less of my money. I could very well stay VF22 and just buy the bigger turbo when I decide I want to do the 2.5l, I have no idea. I am not looking for 350whp off of my stock 2.0l, that is my goal on the 2.5l.
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Old 09-27-2007, 12:33 PM   #16
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dont do somthing too big or else u will be effed like me having to rebuild and retune just to run more boost , i always say go with the green 2.0 spools at about 3200 and goes until 7k thats not that bad in my eyes but i dk if u have gears if not there sure to go
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Old 09-27-2007, 01:14 PM   #17
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How do you guys think an 18g like the one in the link on post #14 would be on my 2.0l?
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Old 09-27-2007, 01:56 PM   #18
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Since it is a 7cm^2 hotside, I think it will suite your car quite well, brock. That hotside is more for 2.0l engines and not 2.5's so you should be golden. And it shouldn't kick hard enough (initially, like the TD04) so it should be a little easier on your gears.

You really, really should get a FMIC for that though.
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Old 09-27-2007, 02:00 PM   #19
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umm it wont be much easier on the gears, you'll need an upgrade
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Old 09-27-2007, 02:45 PM   #20
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If you're serious about upgrading to the 2.5L then why not wait and decide on the turbo when you actually have the swap done? This will eliminate trying to find a turbo that suites both the 2.0 and the 2.5 and you wont be spending all your money up front for a turbo when you could be using it to save for the 2.5L and make that swap happen sooner.
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Old 09-27-2007, 02:48 PM   #21
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I would wait until you do the 2.5L motor swap before you upgrade your turbo. You'd be better in the long run to have the power limited by the turbo, not the motor. A 2.5L with VF-22 isn't a bad combo, it would be more fun around town than a 2.0L with a bigger turbo. Then You can upgrade the turbo after you've got the 2.5L in there and running.

Ninja edit: Looks like I'm not the only one with this idea.

Also, If you spin a bearing in the 2.0L with the your new, bigger turbo, your gonna fry the turbo as well.

Last edited by John2.5RS; 09-27-2007 at 02:51 PM. Reason: Stop coping me! :p
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Old 09-27-2007, 03:38 PM   #22
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I know someone with a 2.5 TR engine, you should just get that and have AVCS and then upgrade your turbo
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