The NSX’s stock 155lph fuel pump reportedly maxes out around 400whp which will not suffice for our turbocharged 500whp+ goal. We upgrade the factory pump with the new Walbro 416 E85 compatible fuel pump and visit our friends at Brown and Miller Racing Solutions for motorsport-grade alcohol approved fuel lines, fittings, and electrical wiring. We finish the build by taking our hanger to be PTFE coated by Calico coatings.
In Part 5, with only headers, exhaust, and some intake manifold work, our Project NSX produced an impressive 269whp which equates to ~315bhp from our naturally aspirated 3.0L C30A motor. With the turbo motor coming together and plans to almost double the power that we’ve already made, our stock 155lph fuel pump is not going to be up for the challenge.
While the NSX’s fuel tank is in an ideal location for performance, servicing anything pump related requires dropping the entire fuel cell which is not an easy task. Since we are not sure if the car will ever run on E85, we decided to build it right the first time and make everything compatible to run on both E85 and Alcohol just in case.