LittleBlue!

Turbo Project

96 posts in this topic

I installed the boost gauge in my dash. I still have to run the hose through the firewall but there is a nice hole/boot for wires and I have a straight shot so it should be good. I'm happy with the look.

 

This gauge has a backlight for night driving. I have read you should wire it to the dimmer switch which is convenienly just down and to the left a tad. I will have to do more research but that is the plan for now.

 

I also decided to paint my intake pipes/boots and clamps. I'm happy with the results. I'll post pictures after they're installed.

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Edited by LittleBlue!

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Here's a preview of the painted intake pipes. I painted them flat black. I plan on painting the car matte black in the spring. Little blue, no mas.

 

I got my 45 degree elbow yesterday ( as seen below) it fits great with the rest of the pipes.

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Edited by LittleBlue!

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The flat black helped clean up under the hood and I like the cleaner more discrete look.

 

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Edited by LittleBlue!
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My exhuast manifold is taking shape. I'm going to cut the bolt holes out and weld threads on the flange. The hot side of the turbo has a really weird flange so I'm forced to customize a bit. I still have a bit of cutting and grinding to do as well.

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Edited by LittleBlue!

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I came across this youtube channel and specific video on decapping fuel injectors. With my turbo set up, running e30 and having hp tuners, I think this is a great option. I'm going to look into it tonight. Here is the video.

 

 

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I will be decapping my injectors and sending the decapped injectors in to be flow tested.I will post the results for anyone interested. My injectors appear to have recessed caps so the process is a little more delicate and slightly less documented. 

Edited by LittleBlue!

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To access the fuel injectors you need to remove the rear bracket from the intake manifold with three bolts and the two side brackets on the manifold. The side bracket near the throttle body (pictured) has three bolts and the one near the oil cap/dip stick has two bolts.

Screenshot_2018-10-17-22-48-01-1.png

Edited by LittleBlue!

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Now, you need to remove the intakemanifold with ten bolts, three of the ten bolts are also securing the fuel rail. The fuel rail is under the top of the intake manifold like a surfer in the barrel of a wave. These diagrams are of the back of the engine and don't show all of the tubes and wires that make this slightly more challenging. I have 9 of the 10 bolts off so far.

Screenshot_2018-10-17-22-50-00-1.png

Edited by LittleBlue!

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The exhaust manifold is finally  welded. I ended up making my own pieces to better fit the turbo. I'm hoping to have the turbo mounted in the car before the end of next week. The exhaust manifold and turbo connection still need some fine tuning but it's getting closer

 

20181028_231055-1.jpg

Edited by LittleBlue!

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I mentioned this in my hp tuners forum but I received my air fuel ratio gauge.   I'm going to practice using the guage to tune my jeep using hp tuners and then move the guage over to the spark when it is ready to start. The obd II port allows you to plug into the car and hp tuners to see real time info on the guage and log data in hp tuners. 

2018-10-30 20.03.59.jpg

Edited by LittleBlue!

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Slowly connecting the turbo and the exhaust manifold. I had to remove the waste gate and I will have to make a custom bracket for the wastegate. I will include more info on this in my lessons learned but in a scenario like this just go universal turbo andyou will avoid many of my issues. Still loving the project though!

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Edited by LittleBlue!

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Have you installed lower compression forged pistons or pressing your luck with the stock cast pistons?  

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Fire Spark, I will be pressing my luck with stock pistons. I'm planning on running low boost and high octane with e30 or higher ethanol blends.

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I worked on getting to these fuel injectors a little bit each day. It took a lot of patience and progress was slow but I have the first of 4 injectors. You can see the four pin holes for fuel to spray out. I'm going to carefully grind along that tiny circle weld until the cap pops off and I should have one large hole for fuel. I'm going to do a bit more research before I start to grind 

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Full disclosure, I failed miserably at decapping the injectors. The main issue is the cap is recessed where the injectors in the video I posted have caps welded on the outside of the tip. The good news is my efforts to remove the injectors were not a total waste. For about the same price as stock injectors, $175, I was able to pick up 4 80lb 850cc injectors. This will allow me to run e85 and means more fuel and more octane for potentially more boost. All in all I'm happy with the direction the injectors upgrade went. They are flow matched and more than large enough.

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Edited by LittleBlue!

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 I ordered a walbro450 for $100. This is a 450 liter per hour fuel pump. Like my injectors it is a bit overkill. However, I now plan on running e85. I dropped the fuel tank and removed the fuel pump basket. I'm working on getting the walbro450 to fit. As you can see, the pump is a bit larger.

 

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Edited by LittleBlue!

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Happy Friday! My injectors unexpectedly arrived today. I did as much research as I could to try and find a match. Good luck finding something that states it fits a chevy spark besides an exact replacement. I looked for an ev14 which describes the electrical plug and the size of the inlet at the top. I then looked at the length of the body. As for the upgrade, my stock injectors were set at 24lbs/hr these are rated at 80lbs.  Stock injector is on the right. The 80lb injectors have been installed.

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Edited by LittleBlue!

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Possibly the first and only Walbro450 custom fitted Chevy Spark fuel pump set up. I decided to go minnow bucket style on the lower basket. MN custom touch.

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The pump is back in the tiny tank. Time to hook the tank back up to the car.

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do you need a special pump for e85? same with injectors?

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6 hours ago, zamlawls said:

do you need a special pump for e85? same with injectors?

 

I'm new to this so additional research is recommended. However, in my mind it comes down to air fuel ratio and the capacity of your pump and injectors. The higher the percent of ethanol you run, the more fuel you need. I believe the stoichiometric afr of regular 87 is 14.7, for e85 I believe it is 9.7 depending on the actual percent of ethanol as it varies depending on the season. That number represents parts of air to one part fuel. If your pump and injectors can be increased and you can hit the afr you need you wouldn't need to change the pump or injectors. However, I'm also adding a turbo so I will have much more air entering the equation and therefore will also need to increase my fuel for this reason. Considering those factors I opted to upgrade both. I am also using this car as a way to learn more about these things so I wanted to do it anyways. I used to run e30 on the stock pump and injectors and it ran great. I didn't even tune it to run different at that point.

 

I may not have answered your question relating to special pump or injectors for e85. I'd say no except you need them to be able to have sufficient flow for proper afr.

Edited by LittleBlue!

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