LittleBlue!

Spark Member
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    17
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About LittleBlue!

  • Rank
    New Member

Profile Information

  • Region
    Decline
  • Location
    USA
  • Current Vehicle
    2014 Spark
  1. Depending on what state you're in, ( location will determine availability) I would recommend trying a tank of e15. It is 10 cents cheaper a gallon where I fill up and I get the same mileage after the computer adjusts.
  2. We will see how it goes. I'm not concerned about the compression, I will be running high octane. I may have to run lower psi but one step at a time. If 94 octane (e30) is not enough to resist knock at the higher compression, I will run e85. At that point, I will have to do more fiddling as you mentioned. My car has been running great on e30 now so the additional octane should help the spark cope with the increase in compression. So far most of the parts I need seem to be adaptable from the cruz and potentially sonic. It's also a wide range of years 2011 to 2016 so I'm hoping there will be more used parts. I'm 120$ into my pockets thus far.
  3. Thanksfor the info!I had never heard this before. I will keep this in mind.
  4. The increased octane will allow me to increase compression which I plan to do by adding a turbo. I purchased the 2016 chevy cruz turbo, today, actually. There are a lot of studies that show higher octane and compression lead to better performance. It will be a challenge and I may end up needing a different turbo, but I'm excited. I plan on documenting the journey and will post on this site.
  5. I have been using e15 and e30 and I average 39mpg. I haven't had any issues yet and I have about 40k miles on the car. I anticipate better mileage if I increase compression and octane. The higher octane and price are my favorite aspects of ethanol blends.
  6. Thank you for the feedback. Like I said, I'm learning as I go. I got this car cheap and I'm passionate about ethanol. I'm hoping the high octane may allow for compression that would not be possible otherwise. Here is an interesting article on E85 and effective compression ratios if you are curious why I think I can get away with this http://www.onallcylinders.com/2015/11/20/ask-away-with-jeff-smith-what-is-safe-effective-compression-ratio-for-e85/
  7. Search octane and high compression ethanol has higher octane you can run on higher compression and more efficiently. Read the source and research more. The above text highlighted is dirctly on point to your question. Look up E85 turbos and high compression. https://www.carthrottle.com/post/engineering-explained-high-vs-low-octane-petrol/ By using a high octane fuel, engine designers are able to implement various techniques to improve reliability, efficiency, and power output. First, it helps prevent knock. Engine knock, or pinging, occurs when a separate pocket of air-fuel mixture ignites after the spark has ignited the air-fuel mixture within the combustion chamber. This is obviously undesirable as it can cause serious engine damage, and it can be prevented by using the proper octane rated fuel. Second, higher octane allows for the use of higher compression ratios. Compression ratio is directly linked with thermal efficiency, so the higher the compression ratio, the more efficient the engine will be (law of diminishing returns certainly applies). These are my thoughts: E30 has "less energy" but the 101 octane allows for higher compression without knock and more fuel efficiency, if tuned properly. The spark is at 10.5:1 (or close) and a turbo with low psi could increase that a bit and you can take advantage of the 101 octane in E30, which is actually cheaper than 87, by quite a bit.
  8. Ok, from what Ive read I can add small boost and the compression can still be increased. I've also seen quite a few people insulating intakes but I'm the type of guy who isn't scared to try these things and report my findings. Call me crazy. Have you tested these things or do you just know it doesnt work because, well, that's crazy? I'll let you know how the turbo goes.
  9. I'll let you know when I'm done how it goes, thanks for your support.
  10. Perhaps a canoe harness?
  11. Remove the resonator. It is below the air filter. I acessed mine through the driver side wheel well. From what I understand it increases airflow; It seems to be good for performance. It's free and reversible. Better instructions on this site. I am happy with the results.
  12. Insulate the intake. In my car it goes right by the exhaust. I bought some tape for air ducts at Lowes. I think it helps but you can do your own research or spend 7 bucks and test it out.
  13. I used "Noice" and I bought 25sq feet on Amazon for like $35
  14. Rear seat removal and sound reduction. I made sure to get the wheel well area as well. I have not tested the sound reduction yet.