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thismarks

2017 1.4L Spark LS Turbo project

14 posts in this topic

I am splitting my post from LittleBlue as I have a different setup and a different engine. Pretty much a completely different setup that some newer generation Sparks can be guided from or learn from my mistakes. I am using a Saab GT17 turbo as it is a reasonable and fairly reliable turbo to work with. It will be a slow project but, I will continue to post and make progress for others to follow.  I am not looking for a dragster. I am really after some more low end torque and another 25-50hp from stock. The 1.4L in my 2017 also has the odd single exhaust port that leads down to the cat. Something that might make some trouble in how I install everything. I am planning on mounting the turbo in front of the transmission on the drivers side and after the catalytic converter. This is a budget build up and the prices you see, are the absolute lowest I could find. 

 

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More parts arriving... Still missing a few key fittings before measurements, welding and assembly commences.

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Nice! I'm excited to follow your build. Enjoy it!!

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Last of the major parts ordered after a few hiccups in fittings. Contacted a welder that is excited to see and work on the project. 

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Posted (edited)

It's been a bit bumpy as I have ordered a couple incorrect parts. Fortunately, they were not expensive ones. The gt25 ( T2 ) turbo inlet flange fits perfect to the bottom of the gt17 turbo, but the gt25 banjo bolt does not fit for the oil feed. So, I had to order one today. I found a good company through eBay called Mambatek. Quality parts. I also have to replace a couple bolts for the Turbo inlet flange, due to clearance and the turbo design. It may lead to some fabricated stainless studs. Nothing I can't take care of myself with a dremel. I'll be back with pictures of the dremeled studs and a pic of them installed.

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Edited by thismarks
Typo

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Sorry to hear about the parts issues, I can certainly relate. I seriously carried my turbo into menards one day to make sure a fitting I used for my oil feed would thread into the turbo. Ordering online is hard for some of these parts. Glad they were relatively cheap. 

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So, after 3 oil feed banjo bolt orders, I finally have the correct one. I now have everything needed to start the measurements and placement. The reason I had issues is partly my own fault. The feed bolt needs to be specifically for a gt1752 not a gt17. At least I have a second steel braided feed line if I need one. I have to run to Florida for a week, after that I will be posting more often on here as I build it up.

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I will be following this very closely. Thanks for posting and i look forward to your next post.

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After getting some measurements, this is going to be tightly fitted and more modification needs to be done. The radiator fan is one of a couple issues. It takes up a ton of space needed. So... Its going to be removed. I'm replacing it with two 7" low profile fans that will be mounted on the opposite side of the radiator in a push configuration instead of a pull configuration as the stock fan is set up. I was considering a replacement radiator but I'm trying to keep as much stock as I can. After, I will be removing a small section of the upper to lower metal bracing in the bumper to make clearance for the turbo intake piping and air filter. Its hard to explain with- out pictures but that will be added as things progress. I am attaching a pic of the fans ordered and the frame piece that needs to be modified to fit things better. The intake is going to end up on the drivers side in the fog light area. IMG_20190824_140003.jpg

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Posted (edited)

Cool idea with the push style fan set up. I'm looking into that for some extra space. 

Edited by LittleBlue!

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Today, I picked up more parts and some tools for the install. Another $100 closer to getting the ball rolling. The stepper bits are to drill the hole for the oil return, below is my makeshift oil return bolt with fiber washers and tapered brass nut. Drain fitting is 10an. Spectre Maf sensor mount may need a fabricated flat plate to correctly align the sensor but not a real issue. 1/2 barb adapters are for the coolant feed and return from the turbo. Honestly started cursing as I was picking up all the water cooling parts and found that I needed a couple t-fittings that were impossible to find in metal or high temp plastic. 

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Edited by thismarks
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Also received the two 7" high speed fans today and mounting ties. Picked up some Prestonecoolant and some special juice ;)

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Coolant tee connectors are a pain, I just ordered a set of coolant hose tee fittings from a Mini Cooper. I didn't want to take any chances rigging up some with PVC fitting due to the max temp of PVC being somewhere around 140°. No parts stores had these so....I had to order once again. I would be further along but I have been facing lots of delays. In the meantime I've replaced a complete suspension, replaced a set of tires / rims, patched body holes, and refinished headlights on my girlfriends 2001 Prius. I did manage to pick up the oil, filter, and get another drain pan for my Spark. So, its almost show time.  Hoping to beat the cold weather where I am. 

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Edited by thismarks

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After another fail with the coolant tee fittings from the Mini cooper,   I made my own. Not pretty but, nylon and brass will take the coolant temps.  These are 1 1/4" barbed nylon couplers drilled and tapped to accept the brass fittings. I gooped on some high temp rtv just to make sure there would be absolutely no leaks. I will spray these with black spray paint so they aren't so ugly.

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