You may not know this, but the OEMs have a really tough job of 1) producing the best products their engineers can develop and 2) keep the product costs low enough that they can afford to build them in mass and sell them to the public. It’s not as easy as we presume it is, and often give the manufacturers too much grief when all they’re trying to do is keep costs down.
One such example is on the stellar SVHO and SHO Yamaha engines. Unbeknownst to most, these big inch bruiser engines (including the naturally-aspirated 1.8L HO engines) employ a plastic fuel rail that feeds the fuel injectors. It’s made of lightweight, durable plastic and does the job. But when you’re looking at increasing fuel delivery to satisfy the needs of a tuned supercharged or turbocharged engine, the plastic piece just ain’t gonna cut it.
That’s why the go-fast gurus at RIVA Racing have developed this stellar Yamaha 1.8L Billet Fuel Rail. Not only does it move more fuel quicker (especially while using RIVA’s Pro Series Fuel Injectors), but it also is a direct replacement for the factory part. Carved from 6061 billet and anodized black, this piece is as good looking as it is effective.
Here’s the original press release:
Our High Flow Fuel Rail is an essential upgrade to your fuel system to support increased horsepower from supercharger or turbo modifications. Directly replaces restrictive factory fuel rail for improved fuel delivery and enhances the appearance of your engine bay. Precision machined billet aluminum rail features a unique bracket system that adapts to a variety of injector sizes & lengths. Large body design provides increased flow capabilities to support 500+ horsepower applications. Inlet fitting accepts OEM Yamaha fuel connector for easy plug-in installation. Includes fittings for flow-through fuel routing to eliminate injector supply fluctuation and keep fuel cooler. Can also be set up with OEM dead head routing via supplied fuel pressure gauge or plug. Constructed of 6061 billet aluminum and anodized to prevent corrosion. Includes all necessary mounting hardware and complete installation instructions.
• High flow fuel delivery supports more power.
• Fits all Yamaha OEM injectors along with RIVA 100lb Pro-Series Fuel Injectors (part# RY12040-I-KIT-100).
• Accepts OEM Yamaha fuel connector fitting for easy installation.
• Delivers equal fuel supply to injectors with flow-through fuel routing.
• Billet aluminum construction and anodized to prevent corrosion.
• Can also be used on stock engine with stock injectors for cosmetic upgrade.
Applications: All Yamaha 1.8 liter engines (SVHO, SHO, HO).
RY12040-BFR Fuel Rail, High Flow; YAM 1.8L $259.95