Mai brought us his Civic for a few repairs, some parts installs, and a tune on Crome Gold. We installed his AEM Fuel Rail, Resistors, DSM 450cc injectors, chipped his OBD1 P28, and installed a jumper harness. After deciding that he wanted to go over 8 psi, we also installed a GM 3Bar MAP Sensor.

There were major wiring issues that needed to be addressed first. We replaced the entire injector portion of the wiring harness, soldered and heat shrinked the inline resistors, installed the injectors and fuel rail, and got the car on the dyno. This car was also previously tuned on a VAFC, with the stock injectors, so in the sake of safety, we did not do a base pull.

Here is the setup:

Stock B18C1

Cast Manifold
50 Trim Turbo
38mm Wastegate
eBay RS BOV
2 1/2" Down Pipe
FMIC
Manual Boost Controller

Walbro 255lph Fuel Pump
DSM 450cc Injectors
GM 3Bar MAP Sensor

Tuned on Crome Gold




Here is the dyno chart for low boost. Boost levels were fluctuating between 6.8psi and 7.1psi.



Here is a chart for 10psi, but the clutch started slipping badly on the dyno. This run was ended early, and the dyno session was stopped until the clutch is replaced.