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The Nuclear Option
2015 Chevrolet Cruze LT 1.4L Turbo
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Discussion Starter · #101 · (Edited)
UPDATE: A couple weeks ago I was browsing ZZP’s website and noticed that they offered a new ported compressor housing option for their V3 turbo. According to their website the porting adds an additional 15- 20 whp over the standard V3. Since the V3 I ordered in the fall was unused and still sealed in it's shipping box, I emailed ZZP to see if I could "exchange" it for the new ported option. Sure enough the great people at ZZP told me I could, even 7 months after I bought it.

So....I paid $45 to send it back, with $1,100 of shipping insurance. They then inspect it to keep me honest, gave me a $1,100 store credit, and I purchased the version with the ported compressor housing for $1,215 with shipping.

I guess I'll see if the additional $160 was worth it in a few weeks.

:LOL:
 

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2014 Cruze Diesel, 2007 Cobalt, 1981 Camaro Z28, 2017 Volt
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More Power!
 

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The Nuclear Option
2015 Chevrolet Cruze LT 1.4L Turbo
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5,410 Posts
Discussion Starter · #103 · (Edited)
Update: This build seems to be getting more complex. My original intentions were to install the pistons and the rods with the engine in the car as some have done before. That is certainly possible with stock connecting rods. It dawned on me this afternoon that the LUJ is an undersquare engine, meaning the stroke is greater than the bore. So, I took some unconventional measurements of my custom rods and I think I'm MIGHT have to install them from the bottom and maybe notch the cylinder bore slightly. Which will evolve pulling the motor. I'll post some pictures to show you the difference.

Pauter X-Beam Connecting Rod:

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Example of notching the cylinder bore:

291688
 

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2012 Cruze LTZ 1989 StarQuest 2004 TrialBlazer EXT
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Isn't there oil sprayers at the bottom of the bore ?? These rods are wider than the bore ?? Personally I;d pull the engine to do the installation work anyway that way I have access to check all my clearances.
 

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The Nuclear Option
2015 Chevrolet Cruze LT 1.4L Turbo
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5,410 Posts
Discussion Starter · #105 · (Edited)
Isn't there oil sprayers at the bottom of the bore ?? These rods are wider than the bore ?? Personally I;d pull the engine to do the installation work anyway that way I have access to check all my clearances.
There are oil sprayers on the bottom of the bores but they are offset from the rods. I measured the base of the rod and they are wider than the bore by about. 0.050". I don't have alot of confidence they'll go in from the top. But the may once the caps come off. The X-Beam part of the rod is wider than the stock I-beam rods. Pauter put a disclaimer in the box, that on some small bore, "long" stroke engines that the cylinder bore may need to be notched slightly to avoid interference.

Here's an image I found from a Sonic forum:

291692
 

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2012 Cruze LTZ 1989 StarQuest 2004 TrialBlazer EXT
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Mental note to self to watch out for this lol Never installed pistons through the bottom of a motor before myself Good luck

Edit:

Duh floating wristpin push rod up from bottom installwristpin and piston on top compress and install .... sorry my brain is slow today.
 

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The Nuclear Option
2015 Chevrolet Cruze LT 1.4L Turbo
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5,410 Posts
Discussion Starter · #107 ·
Mental note to self to watch out for this lol Never installed pistons through the bottom of a motor before myself Good luck

Edit:

Duh floating wristpin push rod up from bottom installwristpin and piston on top compress and install .... sorry my brain is slow today.
Thanks
 

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The Nuclear Option
2015 Chevrolet Cruze LT 1.4L Turbo
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5,410 Posts
Discussion Starter · #108 · (Edited)
I looked at some more pictures of the block and I think the bore might be too deep to install the rods from the bottom. I may need to have Pauter machine 0.025" off each side of the big side of the rod end and cap so they fit down the bore. I ordered a new 2.854" piston ring compressor sleeve to test fit.
 

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The Nuclear Option
2015 Chevrolet Cruze LT 1.4L Turbo
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5,410 Posts
Discussion Starter · #110 · (Edited)
ANOTHER UPDATE: I opened up my ported V3 today. It's kind of underwhelming in appearance to be honest. The wastegate actuator is visibly larger than the stock one. It's supposed to be 2psi higher than the stock one. However I'm going to replace it with the ZZP billet wastegate actuator that I purchased last fall. I was originally going to install it on the stock turbo, but in the process of installing it I realized that the rod was too long, didn't mark it, and ended up cut too much off of the end of it. ZZP sent me a replacement rod that was much longer that the original rod, so I decided to wait to size it until I got a larger turbo.

My plan for today was to resize the Billet actuator's rod to fit the V3 but low and behold the larger rod is the correct size for the V3! :LOL:

I'll take what I can get.

Here's some pictures:

ZZP shipping a box within a box:

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Inside the "smaller" box:

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Looks like a normal turbo/manifold:

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Except for "ZZP" etched into the side and the normal hex head bolts:

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Billet wastegate actuator:

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291761
 

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The Nuclear Option
2015 Chevrolet Cruze LT 1.4L Turbo
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5,410 Posts
Discussion Starter · #112 ·
It "looks" like a normal turbo because it is, just bigger insides ;) Can't wait for the install!
:LOL:

That is true, Thebigzeus. Supposedly the insides, that I cannot see, are ported too. So that should be fun!

My original intentions were for the install to be in a couple weeks, but now that my connecting rods are going back in for some re-work, it will have to be delayed. I was hoping to avoid building in the "hot" season here in northern Indiana.

Plus I may need to buy some more bolts and things IF, I end up pulling the engine to do the install. I haven't came to a conclusion about that part yet.
 

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The Nuclear Option
2015 Chevrolet Cruze LT 1.4L Turbo
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5,410 Posts
Discussion Starter · #113 · (Edited)
2ND UPDATE FOR THE DAY: After looking at my new V3 today, I began to regret selling the never used Forge Motorsports Atmospheric Bypass Valve (aka Blow-Off Valve) that I had a couple months ago. I sold it because my tuner gave me grief about it and told me it wouldn't work right. After talking to some people on here who have them and don't have issues with them, I determined that my tuner was feeding me B.S... Why? I don't know.

So tonight, I bought another one! I'm gonna make it work one way or another...
 

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2013 Cruze LT
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2ND UPDATE FOR THE DAY: After looking at my new V3 today, I began to regret selling the never used Forge Motorsports Atmospheric Bypass Valve (aka Blow-Off Valve) that I had a couple months ago. I sold it because my tuner gave me grief about it and told me it wouldn't work right. After talking to some people on here who have them and don't have issues with them, I determined that my tuner was feeding me B.S... Why? I don't know.

So tonight, I bought another one! I'm gonna make it work one way or another...
They work, but create odd negative fuel trims because the air doesn’t go back into the system. Therefore the car has to adjust fuel out to match the air.
 

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The Nuclear Option
2015 Chevrolet Cruze LT 1.4L Turbo
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5,410 Posts
Discussion Starter · #115 ·
They work, but create odd negative fuel trims because the air doesn’t go back into the system. Therefore the car has to adjust fuel out to match the air.
That sounds about right. The tuner made it sound like the car would have driveability issues all the time. I have a hard time seeing that, as the adaptive system can handle +/- 25% fuel trims once they have been learned.

I guess we'll find out.

What I might do, is leave the stock bypass valve on until he gets the tuning dialed in for the new setup and then put the BOV on.

Are your still running yours, Thebigzeus? I remember you saying you removed one of you Forge parts but I couldn't remember which one it was.
 

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I have the Forge BOV on my V3 turbo. I had to file one site of it to make it fit. the tube on the intake portion of the turbo is bigger than the stock one. and I've never had an issue with my Atmospheric BOV.
 

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The Nuclear Option
2015 Chevrolet Cruze LT 1.4L Turbo
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5,410 Posts
Discussion Starter · #118 ·
I have the Forge BOV on my V3 turbo. I had to file one site of it to make it fit. the tube on the intake portion of the turbo is bigger than the stock one. and I've never had an issue with my Atmospheric BOV.
I noticed it looked like ZZP had filed part of the intake tube around the bypass valve..... I thought that was kinda odd.

Thanks for the heads up.
 
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