2056 Ljet, MPG? |
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2056 Ljet, MPG? |
Geezer914 |
Apr 14 2023, 03:11 PM
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#1
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Geezer914 Group: Members Posts: 1,441 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States |
Running a 2056 with Ljet, 9550 cam, 50mm TB, and 9:1 CR. Getting just over 15 mpg. Plugs look good, slight tan. Thoughts?
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Chris914n6 |
Apr 15 2023, 12:58 PM
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#2
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Jackstands are my life. Group: Members Posts: 3,333 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
Are you using 1.8 injectors or 2.0?
2.0 will likely flow more per squirt which would cause richness. |
ClayPerrine |
Apr 16 2023, 10:19 AM
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#3
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Life's been good to me so far..... Group: Admin Posts: 15,512 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
Are you using 1.8 injectors or 2.0? 2.0 will likely flow more per squirt which would cause richness. L-Jet injectors are not compatible with D-Jet injectors. The are electrically different. The stock L-Jet injectors were right at the limit on a stock 1.8L engine. Use the injectors from a 912E (same injectors were used on a 1980 Nissan 280ZX) Standard Motor Products Fuel Injector Part Number: 6639-05181321 Brand: Standard Motor Products They flow more than the stock 1.8L injectors, and will correct for the cam and additional displacement of the modified engine. An aftermarket fuel pressure regulator does not have the vacuum connection to adjust the fuel pressure upwards at high vacuum conditions. That would account for the running lean at idle. Use the stock pressure regulator, but bigger injectors. Clay |
wonkipop |
Apr 16 2023, 05:55 PM
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#4
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Advanced Member Group: Members Posts: 4,398 Joined: 6-May 20 From: north antarctica Member No.: 24,231 Region Association: NineFourteenerVille |
Are you using 1.8 injectors or 2.0? 2.0 will likely flow more per squirt which would cause richness. L-Jet injectors are not compatible with D-Jet injectors. The are electrically different. The stock L-Jet injectors were right at the limit on a stock 1.8L engine. Use the injectors from a 912E (same injectors were used on a 1980 Nissan 280ZX) Standard Motor Products Fuel Injector Part Number: 6639-05181321 Brand: Standard Motor Products They flow more than the stock 1.8L injectors, and will correct for the cam and additional displacement of the modified engine. An aftermarket fuel pressure regulator does not have the vacuum connection to adjust the fuel pressure upwards at high vacuum conditions. That would account for the running lean at idle. Use the stock pressure regulator, but bigger injectors. Clay @ClayPerrine how do those 912E injectors go on a standard 1.8? out of interest. (IMG:style_emoticons/default/driving.gif) |
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