06-09-2016, 11:08 AM | #1 |
Drives: 2016 1LT RS Camaro; 72 Chevelle Join Date: Apr 2008
Location: Central Point, OR
Posts: 5,688
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Turbo tear down (pics)
I took my spare turbo apart last night in preparation for what I'm going to call a Stage 1 upgrade and HP rebuild.
I bought this turbo as a "rebuildable core" off of ebay several months ago. It's actually off of an ATS, but looking up the 16 Camaro turbo p/n shows that the same p/n is used all the way as far back as the 2013 ATS. I only paid $150 for this turbo off of ebay, not knowing how bad or even if it was bad at all. Upon disassembly, the actual condition of the turbo guts was great. The only problem with this turbo was that the connector on the valve that operates the vacuum actuator is cracked. It will cost me $120 to replace, and what Gm calls a solenoid is missing, that's another $140. I will probably just swap these parts off of the turbo currently on the car before I put this one on after its completed. Now on with the pictures... Upgrade parts are on order, expected to show up next week. Sent from my iPhone using Tapatalk |
06-10-2016, 06:45 AM | #2 |
Drives: Camaro LLT Join Date: May 2012
Location: Union City, NJ
Posts: 595
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Nice!! What's the biggest size you are planning on going. I saw 67 mm stuffed in there.
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06-10-2016, 01:16 PM | #3 |
Drives: 2016 1LT RS Camaro; 72 Chevelle Join Date: Apr 2008
Location: Central Point, OR
Posts: 5,688
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Ill be trying things in stages, so for this "Stage 1", I'm not going to upgrade the compressor side at the moment. The 19t is a pretty good compressor wheel IMO, where this turbo needs help is the turbine side. I'm going to be putting in a 9 blade HL wheel.
The compressor housing was also way choked down, so I have ported what I could, and so far just testing the compressor housing on the flow bench I'm seeing an 11% airflow increase. By the time I'm done, I imagine I will pick up another 1-2%. This alone should be a big difference! I think I may test just this housing in the car by itself first and see what kind of difference it makes. If it makes a nice difference I may offer just a ported compressor housing as a "Stage 0.5" on an exchange basis. Then I'll move on to swapping the new turbo on and see how far I can take it before thinking about moving into a "Stage 2" with an upgraded compressor wheel. I'll be getting another stock turbo in the near future so can take before and after pictures of the porting. I didn't think to take before pics this time. Sent from my iPhone using Tapatalk |
06-10-2016, 02:59 PM | #4 |
Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008
Location: By the lake in AZ
Posts: 15,719
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You know, new the turbo are only $600, i see them all the time up for sale, we have some here to.
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06-10-2016, 04:21 PM | #5 | |
Drives: 2016 1LT RS Camaro; 72 Chevelle Join Date: Apr 2008
Location: Central Point, OR
Posts: 5,688
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Quote:
Gm list price is $1287, I can get them for about $1000. But after reading your post I looked on ebay and I see there is a guy selling them for $549. That's a good price. Sent from my iPhone using Tapatalk |
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06-10-2016, 06:11 PM | #6 |
Drives: 2016 Camaro RS 1LT 2.0L Turbo Join Date: Apr 2016
Location: Alberta Canada
Posts: 349
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Theres a performance thread on the casdy forum and a fella mentioned the model of aftermarket drop in turbo. After reading a bit more it required a new exhaust manifold. That particular turbo was 1750 bucks. He was pushing over 400 rwhp. Borg warner turbo.
Id be interested in upgrading my turbo impellers and exhaust wheels if someone figures out the parts. Would be nice to have a used turbo on hand to slap in if warranty work was needed
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'16 1LT 2.0T RS - Catless DP, Intake, Tune/ Eibach springs FE3 shocks/ BMR front bar FE4 rear bar/ Xpel'd front end, CP Reload sealed/ Radenso Pro M.
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06-10-2016, 06:20 PM | #7 | |
Drives: 2016 1LT RS Camaro; 72 Chevelle Join Date: Apr 2008
Location: Central Point, OR
Posts: 5,688
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Quote:
Once I get this one together and run it for a while, I will probably try the 11 blade billet compressor wheel. Might even try both at some point down the road. The 19t w/ an HL compressor wheel should be good to at least 325 whp maybe up to 350. That's why I'm not really concerned with machining the compressor side to fit a bigger/different compressor wheel. The 19t is a good wheel. Last edited by Jason@JacFab; 06-10-2016 at 06:39 PM. |
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06-10-2016, 10:30 PM | #8 | |
Drives: Camaro LLT Join Date: May 2012
Location: Union City, NJ
Posts: 595
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Quote:
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06-12-2016, 03:19 PM | #9 |
Drives: 2016 1LT RS Camaro; 72 Chevelle Join Date: Apr 2008
Location: Central Point, OR
Posts: 5,688
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Further cleaning up of the port work, I'm now flowing 14% better than it was stock. I still think there is about another 1-2% to be gained.
The new turbine wheel/shaft and turbo rebuild kit will be here tomorrow. So I can asses how much machining I'll have to do to put the new turbo all back together. |
06-12-2016, 05:21 PM | #10 |
Jason,
Very interesting writeup about the turbo. This is an interesting thread and forgive my ignorance but would you please explain... I counted the blades on the stock turbine and I see 11. Why would 9 blades be better? |
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09-26-2016, 02:55 PM | #11 | |
Drives: 2016 1LT RS Camaro; 72 Chevelle Join Date: Apr 2008
Location: Central Point, OR
Posts: 5,688
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Quote:
images below show stock 11 blade L wheel vs 9 blade HL wheel, and their weight difference. The 9 blade HL weighs slight more due to its bigger size, but would weight less than an 11 blade HL wheel. Finally getting back to this project, I sent the compressor wheel new turbine shaft out 3 months ago to be high speed balanced and finally just got it back today. Now I can get back to the machining of the compressor housing and put it all back together. |
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09-27-2016, 06:42 AM | #12 |
Drives: 2016 Camaro LTG Join Date: Jul 2016
Location: SE Michigan
Posts: 316
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Subscribed. Very interesting stuff!
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2016 LTG Camaro in Hyper Blue with MRT V3 Catback and Brembo SS Brakes.
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09-27-2016, 07:20 AM | #13 |
Drives: 2017 Camaro 2.0T RS Join Date: Jul 2016
Location: Ontario
Posts: 1,827
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Looking forward to see how this 'shifts' the power band.... Would you expect to see a slight loss of power in the low rpm band with this upgrade, or would it simply expand the turbo's breathing up top?
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09-27-2016, 01:07 PM | #14 |
Drives: 2016 1LT RS Camaro; 72 Chevelle Join Date: Apr 2008
Location: Central Point, OR
Posts: 5,688
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Well, I'm hoping that with the porting I did on the compressor housing that it will maintain, or even improve the low-mid range power, while the turbine wheel will take care of the on top performance where the stock turbo falls off.
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