indiMjc
Member
- First Name
- Mike
- Joined
- Jun 29, 2020
- Threads
- 2
- Messages
- 9
- Reaction score
- 2
- Location
- Northern Michigan
- Vehicle(s)
- 2018 civic si
- Thread starter
- #1
I'm fairly new to the car scene and have a quick question about direct injection engines. I have a LOT to learn so I'm sorry if this is a dumb or previously answered question.
I bought a 2018 civic si as a daily driver and have been doing a fair bit of research into the L15B7 motor. One of the things I stumbled across was about direct injection in general and has to do with carbon buildup on the valves.
It's pretty easy to understand why port injection keeps the valves clean by spraying gas on their backsides and how injecting directly into the cylinder means they don't get the same cleaning.
I've read that in the newer Honda gdi's this isn't as much as a problem. I also read in one place that the reason it's not a huge deal on these motors is because there's actually 2 injectors per cylinder, one that injects directly and a secondary injector in the port where it normally would be. I'm probably still going to get an oil catch can because it just feels better to know I'm keeping that gunk out, but I still would like to confirm whether or not thats true about the set of secondary injectors.
So the question is, does the L15B7 1.5T in the newer civics actually have that second set of injectors in the ports or is what I read false? I've been unable to confirm it. Thanks for reading.
I bought a 2018 civic si as a daily driver and have been doing a fair bit of research into the L15B7 motor. One of the things I stumbled across was about direct injection in general and has to do with carbon buildup on the valves.
It's pretty easy to understand why port injection keeps the valves clean by spraying gas on their backsides and how injecting directly into the cylinder means they don't get the same cleaning.
I've read that in the newer Honda gdi's this isn't as much as a problem. I also read in one place that the reason it's not a huge deal on these motors is because there's actually 2 injectors per cylinder, one that injects directly and a secondary injector in the port where it normally would be. I'm probably still going to get an oil catch can because it just feels better to know I'm keeping that gunk out, but I still would like to confirm whether or not thats true about the set of secondary injectors.
So the question is, does the L15B7 1.5T in the newer civics actually have that second set of injectors in the ports or is what I read false? I've been unable to confirm it. Thanks for reading.
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