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2016 Holden Cruze 1.8 | GT2560R Turbo | 6T45 AT |
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Discussion Starter · #1 ·
I thought I'd start my own thread, mainly so I can try to have a post with all (that I can remember) the steps I've taken to get to where I'm at with my car. Anybody whos been following Crewz's/Matt's build thread may have seen some of my posts and if not I'd highly recommend checking out his thread and YouTube channel.

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Flex Fuel Mod:
Before I even had dreamed up the turbo project I thought it would be cool to add flex fueling capabilities to my car for performance and at the time cost savings on fuel. A great thread for anybody wanting to do this to their car can be found HERE.
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Injectors Mod:
There are some Cruze specific vendors offering injector upgrades but they are expensive and I'm not sure if their injectors are flow tested etc before sending them out... I decided to contact FIC to see if they had some drop in injectors for my car and they got back to me rather quickly with a set of injectors so I bought them. They're a set of 650cc injectors and haven't given me any grief at any stage :) HERE are the ones I used. I opted to use the solder in pigtails as to avoid another point of failure with the adapters.
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Wideband:
Tuning new fueling and injectors is basically impossible without a way to accurately measure AFRs so I decided to go with an AEM wideband which is able to communicate with HPTuners over CAN. There are other widebands available but the fact that this passively connects to your OBD port and doesn't require other methods of connecting to your laptop meant it was a no brainer... Not really a fan of dash mounted gauges, and police are very strict with mods here so I decided to mount it lower in the useless coin tray lol.
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Strut Braces Mod:
Whilst browsing Facebook marketplace I came across a deal too good to miss... Poor guy wrecked his Cruze and was selling front and rear strut braces for $40AUD I HAD TO HAVE THEM. The car is noticeably stiffer around corners, probably more so in the rear where it used to be very floaty.
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Intake Manifold Mod:
By this time I was starting to plan my turbo build and was interested in finding a better flowing intake for the car and one that would allow me to route my intercooler opposite to the direction the stock air comes in... As it turns out in Australia we have a 1.6T(A16LET) Cruze which is essentially the same block as the 1.8(F18D4) and they so happened to have an aluminum intake manifold that would suit my needs perfectly. I made a post HERE explaining how I installed it.

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Turbo Setup Mod:
Having tried welding my own turbo manifold with little success I decided to get all the fabrication work done by a professional. I wanted this thing to be reliable as it's my daily and decided spending the extra cash for a well made setup rather than a cobbled together one to save me headaches in the long run. I have a friend with a few GTRs that have all been worked and I got in contact with the guy responsible as I heard he likes working on weird/unusual projects lol. If you're in Sydney Garage48 is a great option for this type of work, I was nothing less than impressed with the work carried out on the car :) I decided a Garrett GT2560R would be a nice sized turbo for the car, offering potential for good power and nice responsiveness... Manifold and exhaust are full stainless and the intercooler pipes are aluminum.

Manifold:
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Dump Pipe:
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Exhaust:
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2016 Holden Cruze 1.8 | GT2560R Turbo | 6T45 AT |
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49 Posts
Discussion Starter · #2 · (Edited)
Exhaust cont.:
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Intercooler and Pipes: Went with a mishimoto intercooler as they were on sale at the time of the build and got the IC pipes powder coated black.

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2016 Holden Cruze 1.8 | GT2560R Turbo | 6T45 AT |
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49 Posts
Discussion Starter · #3 · (Edited)
At this point all that was left to do was tune the car. The wastegate was set at 7PSI and held that pressure nicely whilst tuning. The car has only been road tuned, so I dont have any figures on power but it is a hell of alot quicker than its' previous naturally aspirated self lol.

The car was running great for about 5000KM then something gave in...

Transmission upgrade: My stock 6T30 could only hold up to the abuse for so long and decided that the diff didn't want to rotate anymore and exited the case. I realized this was inevitable and had already planned on a trans upgrade but what to swap in? Once again the 1.6T comes to the rescue sporting a 6T45 which is rated to ~320Nm opposed to the 170Nm that the old one was rated to. I expected this to be a major PITA but everything directly swapped in and didn't even require reprogramming of the TCM. I picked a trans from the same year as my car but with much lower mileage with only 40K KMs and it had the exact same OS as my old TCM had. Another benefit of this transmission is it allows for a much higher top speed with different gearing, unfortunately at the sacrifice of a bit of torque but oh well...
290899

New Trans:
290900

Transmission installed:
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2016 Holden Cruze 1.8 | GT2560R Turbo | 6T45 AT |
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49 Posts
Discussion Starter · #4 · (Edited)
The final mod completed are larger front brakes. The newly installed transmission uses different axles which use different bearings which use different bearing hubs lol. Luckily when I purchased the new axles they came with all of this for free! The new brakes are 300MM and the old 276MM so I painted them up and got them installed so I could get the car going again. With the extra power this thing is making its nice to know I have more stopping power available. The 1.6T Cruze also has MUCH larger rear brakes so I'm going to try and track some down and get them installed.
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2015 Chevrolet Cruze LT 1.4L Turbo
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:DNice. There are more enthusiasts left than I thought.
 
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2016 Holden Cruze 1.8 | GT2560R Turbo | 6T45 AT |
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49 Posts
Discussion Starter · #6 ·
:DNice. There are more enthusiasts left than I thought.
Thanks! I wish there were more, I really enjoy how the Cruze drives and looks it just never really kicked off in the aftermarket department :(
 

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2015 Chevrolet Cruze LT 1.4L Turbo
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Thanks! I wish there were more, I really enjoy how the Cruze drives and looks it just never really kicked off in the aftermarket department :(
A lot of people have the philosophy of why not buy the HP in the 1st place. Which is a valid argument. I've spent USD $8,500 so far on my build and I'm probably going to end up spending $10,000 once I actually get the engine built; And another $3,000 after that once the transmission blows. So for an additional $13,000, I could have bought a Camero with about the same amount of power that I'll end up with.

But that would be boring....
 
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This is amazing! I love following builds like this because I don't have the funds to do the same to mine. I can dream and imagine how it is through watching individuals like yourself and Matt, though! I love his vids btw and freaked out when I found them lol.

Enjoy and major major props on your build! That's freakin' AWESOME!
 

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Premium Member
2012 Cruze LTZ 1989 StarQuest 2004 TrialBlazer EXT
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429 Posts
Wish we could find an aluminum one to bolt to the 1.4.. you guys over in Aus seem to get all the luck in this department.. My other project had the same thng happen, As it turns out you guys had an actual multiport injection intake from the magna i believe it was that just so happen to fit the mitsuxplode 2.6 in the Starion/Conquest 80's car
 

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2016 Holden Cruze 1.8 | GT2560R Turbo | 6T45 AT |
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49 Posts
Discussion Starter · #11 ·
Wish we could find an aluminum one to bolt to the 1.4.. you guys over in Aus seem to get all the luck in this department.. My other project had the same thng happen, As it turns out you guys had an actual multiport injection intake from the magna i believe it was that just so happen to fit the mitsuxplode 2.6 in the Starion/Conquest 80's car
We're lucky in some ways where we get a mixture of vehicle variants from different regions but we get absolutely wrecked on pricing compared to you guys! I actually bought my manifold from the UK as they're really hard to get here without being attached to a motor :(
 

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2012 Chevy Cruze 1.8 (soon to be 1.8t) LS... white
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745 Posts
Love this build! So clean. We need more videos! lol ;)
 

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2012 Cruze LTZ 1989 StarQuest 2004 TrialBlazer EXT
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429 Posts
We're lucky in some ways where we get a mixture of vehicle variants from different regions but we get absolutely wrecked on pricing compared to you guys! I actually bought my manifold from the UK as they're really hard to get here without being attached to a motor :(
LOL Fair enough still loving the build and the look
 

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Super Moderator
2015 Chevrolet Cruze LT 1.4L Turbo
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3,241 Posts
LOL Fair enough still loving the build and the look
RacerX makes an alloy intake manifold for the LUJ. I don't really see a point in it though. The factory manifold is designed for boost already.
 
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2012 Cruze LTZ 1989 StarQuest 2004 TrialBlazer EXT
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429 Posts
Yeah I saw that one .. I more meant the availability of metal stock variation from a different vehicle.
 

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2015 Chevrolet Cruze LT 1.4L Turbo
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Yeah I saw that one .. I more meant the availability of metal stock variation from a different vehicle.
You mean like a valve cover, water outlet, or thermostat housing.... ;)

Hopefully that GM engineer is working in a different department.
 
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2012 Cruze LTZ 1989 StarQuest 2004 TrialBlazer EXT
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Gettt ouuuttttaaa my head :p
 

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2015 Chevrolet Cruze LT 1.4L Turbo
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2016 Holden Cruze 1.8 | GT2560R Turbo | 6T45 AT |
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49 Posts
Discussion Starter · #20 ·
Ali express sells metal valve covers, water outlets and such, but not for the 1.4
I have a metal valve cover waiting to be installed. Getting a second pcv outlet welded on soon, have an issue that arose which requires a fix from my fabricator and going to get some extra stuff done whilst its' in the shop.

Some videos if anybody hasn't seen them yet
 
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