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Old 11-27-2005, 05:09 PM   #1
STIGSXR
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Default Best Turbo Upgrade For Sti??

I have recently installed unequal length headers, upipe, invidia v2 downpipe, 3" N1 exhaust. My VF39 recently blew, and im not sure if i should get the same turbo, or go alittle bigger now that i have the chance? Ive been looking at the VF22 and other series, but I know its laggier and people have said theres only a small increase in hp between them. Im mostly looking for a used turbo, around 300-400 range. Any ideas would help.

Thanks.
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Old 11-27-2005, 05:12 PM   #2
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for that price, prolly a vf39 or vf34. Unless you get lucky and you find someone with a 18g or so.
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Old 11-27-2005, 05:50 PM   #3
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if 300-400 is your range, I'd get another vf39. imo, the vf39 is better than a 22 or 34.
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Old 11-27-2005, 06:07 PM   #4
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this subject is killed. im a newbie and even i kno that you should have seached on this one a lil more. with that said a blown turbo is a perfect time to upgrade to a bigger and better model. the only problem is that you will need new injectors and fuel pump if you go much larger. call up deadbolt and see what they have in stock. they have excellent customer service and will be able to steer you in the right direction.

edit: save up more money as im an idiot and didnt look at how much money you said
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Old 11-27-2005, 06:10 PM   #5
burnin4
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dude, he said $300-$400.
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Old 11-27-2005, 06:46 PM   #6
NaVaWRX
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use the same turbo or upgrade to something crazy but since u only looking to spend 300-400 .. then vf39 is the only one i would go with .
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Old 11-27-2005, 07:26 PM   #7
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.....300-400???

forget it unless ya find a vf22 somewhere
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Old 11-27-2005, 07:31 PM   #8
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vf22 will net you a lil more power with a tune
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Old 11-27-2005, 08:18 PM   #9
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Quote:
Originally Posted by burnin4
if 300-400 is your range, I'd get another vf39. imo, the vf39 is better than a 22 or 34.
How do you figure?

The 22 has a bigger hot side, which is better suited to the larger engine, and the 34 is essentially the exact same turbo. If he can find a VF22, it would be ideal for his car. I have driven a basically stock STI with a vf22. If they had to put an IHI on that car, it should have been a VF22. The bearing part of it is a non issue. It spools very fast and holds more boost to redline.

The problem is, forget finding a VF22 in that price range anymore. They have become rare and EXPENSIVE enough that they arent worth buying.
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Old 11-27-2005, 08:31 PM   #10
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I would not get another vf-39. They appear to have issues with cracked turbine housings: http://forums.nasioc.com/forums/show...t+cracked+vf39

For your budget, I would suggest a used vf-30, 34, or 22....whichever you can find with the least miles and in the best condition
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Old 11-27-2005, 09:36 PM   #11
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pmed you
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Old 11-27-2005, 10:30 PM   #12
STIGSXR
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Quote:
Originally Posted by cooter
I would not get another vf-39. They appear to have issues with cracked turbine housings: http://forums.nasioc.com/forums/show...t+cracked+vf39

For your budget, I would suggest a used vf-30, 34, or 22....whichever you can find with the least miles and in the best condition

If i buy a vf22, 34, or 30 turbo wouldn't i have to then get tunning??
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Old 11-27-2005, 11:00 PM   #13
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the 30 and 34 won't require any special tuning, although you would definitely benefit from it...

However, just about any turbo you buy except the VF39 will require a different right-angle silicone hose to connect it to the intercooler.
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Old 11-27-2005, 11:01 PM   #14
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Quote:
Originally Posted by STIGSXR
If i buy a vf22, 34, or 30 turbo wouldn't i have to then get tunning??
not for the 30 or 34. They are almost identical to the 39 as far as flow and when they spool.
The 22 will be so close that there is a huge chance that the stock ECU will be able to adjust within its parameters for it. Its not a big upgrade by any means. Its less of a difference going from a 39 to a 22 than going from a stock TBE to a aftermarket TBE.
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Old 11-28-2005, 12:37 AM   #15
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i should have said easier. more likely to find a 39 for $300-$400. 22 might offer more power but would require tuning to maximize its potential, instead of bolting on the 39 and driving away.

Quote:
Originally Posted by Davenow
How do you figure?

The 22 has a bigger hot side, which is better suited to the larger engine, and the 34 is essentially the exact same turbo. If he can find a VF22, it would be ideal for his car. I have driven a basically stock STI with a vf22. If they had to put an IHI on that car, it should have been a VF22. The bearing part of it is a non issue. It spools very fast and holds more boost to redline.

The problem is, forget finding a VF22 in that price range anymore. They have become rare and EXPENSIVE enough that they arent worth buying.
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Old 11-28-2005, 09:12 AM   #16
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Quote:
Originally Posted by burnin4
i should have said easier. more likely to find a 39 for $300-$400. 22 might offer more power but would require tuning to maximize its potential, instead of bolting on the 39 and driving away.
true that. But from the 2 untuned, otherwise basically stock STIs I have driven with VF22s on them, there is very VERY little tuning needed. Its that close to the 39.


I think we pretty much all agree that his easiest way out of this (and cheapest) will be a used 39 or 34 (no tuning required and avail cheap used)
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Old 11-28-2005, 02:39 PM   #17
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I would say save your money for a bigger but since you have no turbo currently find a vf-22 and stick that thing in your car.
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Old 11-28-2005, 03:38 PM   #18
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What modifications would you recomend I do on a VF39 to help increase hp?? And are they worth the money??
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Old 11-28-2005, 04:59 PM   #19
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id save for alil longer and get something nice, there isnt much out there in that price range unless its half near destroyed.
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Old 11-28-2005, 06:41 PM   #20
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you have a $30,000 car and with mods but only want to put used turbo on it for $400
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Old 11-28-2005, 11:42 PM   #21
STIGSXR
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Quote:
Originally Posted by kevinh211
you have a $30,000 car and with mods but only want to put used turbo on it for $400

The VF39 only goes for around $800 new. And i found a bunch of them with less than 1k miles on it for that price range.
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Old 11-29-2005, 03:23 AM   #22
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Get a real turbo for your car. Sorry to say it but IHI turbos are a POS, don't even waste your time with another one. I went with the 20g as did many other people, the 20g is the ideal/perfect turbo for the sti.
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Old 11-29-2005, 03:28 AM   #23
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I think i'd lean towards a green or red, although its way past the projected budget.
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Old 11-29-2005, 03:34 AM   #24
kedrin
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you need to check this baby out


its one big bad boy perfect for sti's.....


(noob use the search button this topic has been posted a bagillion times)
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Old 11-30-2005, 05:06 PM   #25
STIGSXR
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Quote:
Originally Posted by STIGSXR
What modifications would you recomend I do on a VF39 to help increase hp?? And are they worth the money??

Thanks, but can someone actually help answer this question?
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