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Old 11-18-2012, 08:45 PM   #1
Steve Knob
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Question Bolt-on turbo replacement. Can I do it at home?

Turbo on my 2006 STi went south today for as yet unknown reasons. If I get a bolt-on replacement, can I do the installation myself? Any hints, special tools, or things I need to check to make sure the new one doesn't decide to eat itself too? Any recommendations as to a good (i.e. "afordable"), not crazy replacement? I'm not looking to make 500hp. Stock or just slightly better is fine. I have done a lot of work on my own cars for over 35 years, but have never installed a turbo. I'm also looking for a new (to me) front bumber cover and rear wheel arch covers if anyone has some laying around (or knows a good source).
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Old 11-18-2012, 08:53 PM   #2
HinshawWRX
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We cannot ASSUME if you can do the install yourself. If you go with ANY turbo other then stock, you will need a tune for it.

Search.
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Old 11-18-2012, 08:54 PM   #3
mod maniac
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You need to go stock or you need to tune. You also need to prime the oiling system before you start the car on the new turbo. Yes you can change it at home, I like to think most people are simi mechanically inclined. beat me to it^^^^^
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Old 11-18-2012, 10:09 PM   #4
Ballistic1350
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I changed out my turbo at home. Not bad. Some parts were aggravating like getting the inlet coupler on with the manifold still installed. If you have some tools and a solid chunk of time give it a whirl. Most tuners can give you a limp map to get to them when upgrading stuff.
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Old 11-18-2012, 10:14 PM   #5
jrodm12
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If it trew metal in pan u need to replace oil cooler. Also replace oil return line whille ur in there.
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Old 11-19-2012, 08:27 AM   #6
HinshawWRX
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And as a fun note as to why I hate these questions. (no offense to the OP) I removed, built, and reinstalled my motor all in my garage here at home. My neighbor down the street, couldn't change his oil. All about the skill set and ability of the mechanic. The good thing about these car's is they don't really require any special tools to tear into.
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Old 11-19-2012, 08:45 AM   #7
Steve Knob
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Thanks for the responses so far. Any other helpful info would be great. I'm just going to put a stock VF 39 back in it so I don't have a lot of other problems to deal with. Anybody with any recommendations as to a good remanufactured supplier? I see them on the internet and on eBay, just wondering if they are a safe way to go. I really need to do this as economically (not just cheap) as possible, all my money is going into a Spec Miata rebuild right now.
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Old 11-19-2012, 12:54 PM   #8
tazswing
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Quote:
Originally Posted by Steve Knob View Post
Thanks for the responses so far. Any other helpful info would be great. I'm just going to put a stock VF 39 back in it so I don't have a lot of other problems to deal with. Anybody with any recommendations as to a good remanufactured supplier? I see them on the internet and on eBay, just wondering if they are a safe way to go. I really need to do this as economically (not just cheap) as possible, all my money is going into a Spec Miata rebuild right now.
Couple things to make sure of if you do it yourself:

-Make sure the oil drain tube is hooked up correct.
-Make sure oil feed line is the correct one for whatever turbo you install.
-A trick to getting the lower bolts off the turbo is to use (maybe borrow) a really long extension and a swivel joint and go from under the car.
-When you un-bolt the spring bolts (if you still have them) they are under some tension.
-Read, read, and read some more.
-I usually fully tighten down the DP to the turbo prior to tightening the to the mid-pipe.
-What was said above about a tune if it is not a direct replacement.
-You can find OE turbos for sale from people who upgrade there perfectly working turbo to make more power, maybe search the FS listings.
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Old 11-20-2012, 12:32 PM   #9
V8Slayer
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Quote:
Originally Posted by tazswing View Post
-You can find OE turbos for sale from people who upgrade there perfectly working turbo to make more power, maybe search the FS listings.
This is very true. Just be careful who you buy from, my "perfectly working used turbo" turned out to have blown oil seals and wouldn't boost past 3psi
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Old 11-19-2012, 01:45 PM   #10
STIBungy
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Dont forget to check the oil feed screen since you mentioned the turbo went south for unknown reasons.
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Old 11-21-2012, 12:37 PM   #11
DerekB707
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I just sold my 07 VF43 for $375, you can find used VF series turbos on here pretty often. You could also get a 18g and a cobb access port, I think they have ots maps for smaller turbos like that IIRC. Honestly though, I would probably just put a stock one back on there, probably the cheapest route. Toughest part about the install is unhooking the oil drain clamp from under the car in my opinion. I'd probably replace the drain tube while you have it out.
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