Jump to content

Recommended Posts

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.

20180927_194931-1.jpg

Edited by LittleBlue!
Link to post
Share on other sites
  • Replies 199
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

I started fitting the charge pipes today. I'm going to move the intercooler back (towards the radiator) a tiny bit for a better fit but I'm happy with the progress. This bumper literally snaps off and

All of my oil lines are hooked up, I've put gaskets on all of the exhaust connections, everything is set to start. I have tried to start it but I'm getting a laundry list of codes in HP tuners. Nothin

While reading the HP tuners forum I came across a reference to a YouTube channel, Goat Rope Garage. I've watched a few videos that have been incredibly helpful and relevant for the 2014 Chevy spark ec

Posted Images

  • 2 weeks later...

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.

20181013_160314-1.jpg

Edited by LittleBlue!
Link to post
Share on other sites

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!
Link to post
Share on other sites

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!
Link to post
Share on other sites

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!
Link to post
Share on other sites
  • 2 weeks later...

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!
Link to post
Share on other sites

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!
Link to post
Share on other sites

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!

20181030_221010-1.jpg

Edited by LittleBlue!
Link to post
Share on other sites

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 

20181104_225539.jpg

Link to post
Share on other sites

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.

20181106_210927.jpg

Edited by LittleBlue!
Link to post
Share on other sites

 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.

 

20181111_020939.jpg

Edited by LittleBlue!
Link to post
Share on other sites

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.

20181109_193031.jpg

Edited by LittleBlue!
Link to post
Share on other sites
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!
Link to post
Share on other sites
18 hours ago, LittleBlue! said:

 

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.

well maybe, in a more grand scale of things i think you would. but everything that you said seems to make sense. :thumbsup:

Link to post
Share on other sites
On 11/15/2018 at 9:32 AM, zamlawls said:

well maybe, in a more grand scale of things i think you would. but everything that you said seems to make sense. :thumbsup:

You may be right. Actually, the pump and injectors both had e85 compatible in their descriptions. I have always been skeptical if there is actually a difference but I guess error on the safe side unless you know for sure or are willing to experiment. Again, I'm new so I'm learning as I go. 

Edited by LittleBlue!
Link to post
Share on other sites

Here is a link to good write up on adding a flex fuel sensor to an e78.

 

http://www.sonicownersforum.com/forum/do-yourself-articles/20205-flex-fuel-sensor-install-information.html

 

The original poster installed a flex fuel sensor on their sonic. It explains there are two pins where the wires from the flex fuel sensor that I ordered will connect.

 

In the back of the ecm there are three plugs. J1,J2,J3. The plug we are looking at is J3. On this plug we will be inserting a wire to spot 20 and 34. From what I have read there are grey plugs in these spots when not installed by the manufacturer. We take these plugs out and insert our wires. The forum linked also provides info on the correct plug size. 

20181116_005338.jpg

Edited by LittleBlue!
Link to post
Share on other sites

My flex fuel sensor was delivered today. $35 and I bought the plug and wire leads for another $12. I still need to buy a fuel line connector removal tool for about $5 and a Male to female fuel line connector. 

 

Once everything is hooked up, the sensor will tell the computer the ethanol content and my computer will determine the right air fuel ratio, timing, etc. 

20181117_165816.jpg

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×
×
  • Create New...