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Old 12-01-2013, 09:03 PM   #1
bhollehday
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Post Newbie Turbo Recommendation and Fitment Question

Hi Im new to this forum and am learning how to use it. I tried searching this site and google about turbo info and have not found a solid answer of what I need. Basically was told get a blouch 16g EvoIII turbo for what im looking to do, and now im thinking to try and find an 18g. Was previously considering getting a VF39 but figured after spending $300 for a used one, I might as well spend $5-6 on what I think Ill want, if possible (Fast spooling 18g turbo is what im thinkin).

Heres where i'm at...

Plan on purchasing 750cc RC injectors
Plan on a Walbro FP
Plan on purchasing $100 TMIC
Plan on an AP V3 from Cobb
Has a 3in downpipe --> 2.5inch COBB catback
06 wrx stock up pipe
LW pulleys
Short Ram intake
Cold irridium Plugs
5 Speed
2004 with 110K miles (New belt, idlers, Water pump and fluids in trans and engine)
Runs good (Have a little clicking when cold, which im told is the loud valves chattering when it is cold, and after it warms up it is gone)

I want to achieve a solid street car that is fun and RELIABLE (which I think 300-320whp is achievable). I dont want to risk blowing the engine. I figured after im done with the above purchases, ill pick up an 18g turbo. I dont want to spend more than 2g's in the end, think I can get it together for $1500 if I can find a used 18g for $500 or less.

Whats a popular fast spooling turbo 18G that I can buy used for around $500? What do you look for in order to find a turbo that will fit the 02-05 WRX? I understand IHI is oem subaru turbos and MHI is oem mitsu turbos, but how would you fit an aftermarket or oem turbo (like MHI) to a WRX?

Any help appreciated.
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Old 12-01-2013, 09:09 PM   #2
wildewrx
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I would opt towards a 3 inch exhaust instead of the 2.5. More flow = more power. What intercooler are you going to get for $100?
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Old 12-01-2013, 09:27 PM   #3
subaru_gc8
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forget the 750's either go 1000 or 850.
as for the 18g, there are none that I would buy in that price range. if it were me, I would spend a couple more hundred and get something that would be more reliable. My philosophy is do it right the first rather than twice and pay twice. get a kinugawa they are about 800 but they are about the cheapest 18g's out there that are reliable.

hope this helps.
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Old 12-01-2013, 10:00 PM   #4
wildewrx
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^ this guy is completely right. I would go with some id850 or id1000's
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Old 12-01-2013, 10:04 PM   #5
bhollehday
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Alright, guess ill look for the ID850's or the 1000's then. Its not too much more.

I can get a used VF39 for $300 shipped with WG crack. Thinkin about doing that then going with the turbo of choice later down the road.

I can get a good deal on a TMIC from a shop here in Orange County. $90, sure its nothing great, but its oversized. Dont want to go FMIC. Again my goal is the acheive something reliable and fun that is playing it on the safe side of what the engine can handle. I cant imagine going over 320 whp at any point in the future. Id rather sell and look for a newer subie.
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Old 12-01-2013, 10:10 PM   #6
cosseywrx
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Could opt for a greddy 18g. Oil cooled only. Im fmic and mine full spools by 3400 and holds till redline. Bought mine for 450 and had been rebuilt with 1k miles on it. Capable of 350whp. Tho some have gotten more out of it.
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Old 12-02-2013, 08:44 AM   #7
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Go with the evo3 16g it's all I believe in unless you want some serious serious power. It has a really fast spool while also having a good hit in the powerband.
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Old 12-02-2013, 12:03 PM   #8
wildewrx
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Skip the tmic and get an Sti tmic they usually run between $200-300. They are proven to perform MUCH better than cheaper top mounts. You will have a very fun daily driver with a vf39 but you aren't going to see that 300-320 whp with it
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Old 12-02-2013, 12:15 PM   #9
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First off, have you found AND consulted a tuner? Just because you bring a pile of parts doesn't mean he'll be able, or willing to tune for all of them. (IE some tuners hate XXXX injectors and prefer YYYY brand)

Do you know that reliability is REDUCED when modding a car?

Your budget for a turbo is too low to find a GOOD turbo. A VF39 can be had, and a wastegate crack is nothing to worry about, but won't put you at your goal. And a GOOD TMIC will be more then 100. If you do a VF39 and STI tmic, you'll be fine, anything else you want to spend that money.

And what do you mean by COLD iridium plugs? Your stock ones will be fine for the level you wish.
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Old 12-02-2013, 01:45 PM   #10
bhollehday
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Quote:
Originally Posted by HinshawWRX View Post
First off, have you found AND consulted a tuner? Just because you bring a pile of parts doesn't mean he'll be able, or willing to tune for all of them. (IE some tuners hate XXXX injectors and prefer YYYY brand)

Do you know that reliability is REDUCED when modding a car?

Your budget for a turbo is too low to find a GOOD turbo. A VF39 can be had, and a wastegate crack is nothing to worry about, but won't put you at your goal. And a GOOD TMIC will be more then 100. If you do a VF39 and STI tmic, you'll be fine, anything else you want to spend that money.

And what do you mean by COLD iridium plugs? Your stock ones will be fine for the level you wish.

Ya I talked to COBB and they said $500 for a tune and they said stick with ID1000's for the price.

Think ill go for an STI TMIC then.

Im debating on getting the V3 AP from COBB and doing a VF39 ($300) and 560cc injectors ($100) and a computer tune. But im wondering what kind of numbers I will see. If I could get somewhere around 260-280 whp I think that would be a lot more than what I have now and might be best bang for the buck.

Its either that, or I get ID1000's ($400) and a 18g turbo ($800) and then have a good custom tune installed. What do you think?

I can buy a blouch 18gxt for $800. Has approximately 15,000 miles on it. No shaft play. Includes a brand new wastegate actuator that was never installed, and a Grimmspeed wg bracket which im not sure what I need that for.

Also an option is a Six Star Speed 18G from a 07 Forester XT local for $800. What do you think?
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Old 12-02-2013, 01:47 PM   #11
bhollehday
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Quote:
Originally Posted by BuckwildWRX View Post
Go with the evo3 16g it's all I believe in unless you want some serious serious power. It has a really fast spool while also having a good hit in the powerband.
Compared to an 18g whats the difference if im looking for a max of 3-320whp
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Old 12-02-2013, 02:24 PM   #12
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That wg bracket is for if you run and external Wastegate you don't need it. If I were you id go with the id1000's, 18g, Sti tmic, and a custom tune
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Old 12-02-2013, 02:31 PM   #13
bhollehday
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Quote:
Originally Posted by wildewrx View Post
That wg bracket is for if you run and external Wastegate you don't need it. If I were you id go with the id1000's, 18g, Sti tmic, and a custom tune
Ok, but what would be your HP goal if you were me? Like I said I dont plan on doing big things with this car, would probaly want to max at 300 whp. Is this acheivable with 560cc's and a VF39 or would an 18g and 1000cc's spool faster and outperform? Its basically $1200 for good 18g and ID1000's or $400 for VF39 and STI injectors. So is the 18g 3x more fun for the money?

Last edited by bhollehday; 12-02-2013 at 02:37 PM.
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Old 12-02-2013, 02:54 PM   #14
wildewrx
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I had a vf43, Sti injector wrx for about 8 months and it sure was an awesome car but it really felt slow to me. I have a 450 hp Sti now and I'm scared to get on the gas on public roads. I feel that 18g, 1000cc injector combo would ultimately be a perfect daily. Tons of manageable fun
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Old 12-02-2013, 03:42 PM   #15
bhollehday
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Quote:
Originally Posted by wildewrx View Post
I had a vf43, Sti injector wrx for about 8 months and it sure was an awesome car but it really felt slow to me. I have a 450 hp Sti now and I'm scared to get on the gas on public roads. I feel that 18g, 1000cc injector combo would ultimately be a perfect daily. Tons of manageable fun
alright looks like ill try and go for blouch 18g and ID1000's then. What about tuning, will I be ok doing Cobb AP tunes or do I need to go custom tune? And how much do custom tunes range, COBB wants $500.
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Old 12-02-2013, 05:03 PM   #16
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You ARE going to blow up your motor. This I can guarantee. I'd start saving around $5000 for a new motor now. Right now. You are shotgunning parts at a car and on a list of good ideas, this isn't even at the bottom. I've been through 3...4 turbos now and have close to 190,000 on the tickers. Last turbo took probably 6 months to research. This is what judicious people do. And I'm making your power goal. On a 16G. With 650 injectors. Are you feeling me on this yet?
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Old 12-02-2013, 06:06 PM   #17
bhollehday
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Quote:
Originally Posted by Unabomber View Post
You ARE going to blow up your motor. This I can guarantee. I'd start saving around $5000 for a new motor now. Right now. You are shotgunning parts at a car and on a list of good ideas, this isn't even at the bottom. I've been through 3...4 turbos now and have close to 190,000 on the tickers. Last turbo took probably 6 months to research. This is what judicious people do. And I'm making your power goal. On a 16G. With 650 injectors. Are you feeling me on this yet?
Sorry you lost me. Your sayin im worrying about the wrong things? I agree Ill blow the motor sooner or later, hopefully later, and id like to do what I can to prevent blowing it up. And when it does ill be prepared to build the engine.

But until then, trying to find the best bang for the buck on this 110K mile engine.

Do you think it would be best to go the VF39 route save my money and start building up a separate block and spend the money on that instead of this old engine. I think if I did swap engines, id find a used STI trans and engine to build and swap in. save my money for turbo and parts for that. Haven't done the research but if its a bad idea id just rebuild a EJ20 of course.
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Old 12-05-2013, 02:05 AM   #18
Desertsubi84
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I got a 18g if you interested in trade for your stock turbo also 750cc injectors
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Old 12-05-2013, 02:23 AM   #19
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Talk to the person that will be tuning/working on you car in general, They know what's a good idea and what's a bad idea.
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