1.5T About non-Si fuel upgrade

PangziXin

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civic
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2022
Hello, brothers. I want to upgrade the fuel system on my Chinese model and have referred to all the 10th-generation Civic upgrade plans I could find. I think using the fuel injection system from the 2.0T Accord (the equivalent model in China being the Acura RDX 2.0T) could be an effective try. However, there is one thing I haven't figured out yet, which is the selection of the intake camshaft. In the 11th generation models, the OE number for the intake camshaft is different from the previous ones. I know that for the U.S. versions, using the Si intake camshaft along with the 2.0T high-pressure fuel pump works, so I want to confirm the intake camshaft and high-pressure fuel pump numbers for the U.S. 11th-generation models so I can find the corresponding parts in China. I hope someone can provide this information. Thank you very much.
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PangziXin

PangziXin

Member
First Name
civic
Joined
Nov 20, 2023
Threads
5
Messages
22
Reaction score
3
Location
US
Vehicle(s)
2022
Let me update you on my progress. First, I'm mimicking the setup of American car enthusiasts, similar to DIY projects and Axion/FK8TD kits from forums. I purchased the fuel injectors and high-pressure fuel pump from the Acura RDX 2.0T, both with the part number 6B2. I believe I can use the 10th-gen Civic Si's 5pa high-pressure fuel pump base and hard lines, and enlarge the holes in the hard lines to about 1/16 inch. Additionally, I bought an intake camshaft from the Chinese-market CR-V, with the part number 68D (the U.S. version Si has part number 64B). Once I receive the part, I will compare it with the 10th-gen Si intake camshaft. I’ve also made wiring for the fuel injector power supply. The low-pressure fuel pump is straightforward, as the DW300C is easily available. The main challenges are the compatibility between the camshaft and the high-pressure fuel pump, as well as the subsequent fuel pressure calibration. I will continue to update.
 
 







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