As the power-making capabilities of the R35/VR38 continue to increase, the need to provide a proper fuel delivery solution has become a necessity. After months of research and development, designing and refining, testing and verifying, the T1 R35 GTR Fuel Rail Kits are finally available for release.
One of the issues T1 encountered when considering secondary mounting brackets, was the type of load the fuel rails will see during use. The GTR runs a differential fuel pressure of 50psi. Based on the surface area at the inlet of the injector, this equates to roughly 12 pounds of force literally trying to push each injector out of the rail. This translates to 36 pounds of force trying to separate the injectors from the rail, which puts a significant load on the fuel rail mounts. To address this issue, T1 opted for a 1-piece billet design; no secondary mounting brackets necessary. For the sake of simplicity, T1 also decided to retain the factory mounting method and location for the pulsation damper and the fuel pressure regulator. So no adapters or additional fittings required.
Fuel temperature is another issue that is often overlooked that T1 addressed with their FPR kit. Since the VR38 generates plenty of power, and a byproduct of power is heat, the
cylinder heads transfer and retain a generous amount of heat. Some of this heat gets transferred from the heads, to the fuel rails, and subsequently to the fuel itself. Once fuel reaches it's boiling point, it will cause fuel pressure to fluctuate unpredictably. To combat this, T1 has incorporated 1/4" phenolic spacers between the heads and fuel rails to alleviate this issue. Phenolic has excellent insulation properties, and will keep as much heat out of the fuel rails as possible.
To connect the two fuel rails, Goodridge's 'G Line XF' hose was selected, which is the company's premium line. This hose is constructed of super-light Aramid braid (which provides excellent durability), with a PTFE inner bore which is smooth inside (for increased flow), and is convoluted (for amazing flexibility). The hose is fully compatible with all fuels, including race gas, E85, and methanol. The lightweight crimp on hose ends ensure a leak-free seal and light
weight.
T1 R35 GTR Fuel Rail Kit includes:
**Injectors sold separately.
One of the issues T1 encountered when considering secondary mounting brackets, was the type of load the fuel rails will see during use. The GTR runs a differential fuel pressure of 50psi. Based on the surface area at the inlet of the injector, this equates to roughly 12 pounds of force literally trying to push each injector out of the rail. This translates to 36 pounds of force trying to separate the injectors from the rail, which puts a significant load on the fuel rail mounts. To address this issue, T1 opted for a 1-piece billet design; no secondary mounting brackets necessary. For the sake of simplicity, T1 also decided to retain the factory mounting method and location for the pulsation damper and the fuel pressure regulator. So no adapters or additional fittings required.
Fuel temperature is another issue that is often overlooked that T1 addressed with their FPR kit. Since the VR38 generates plenty of power, and a byproduct of power is heat, the
cylinder heads transfer and retain a generous amount of heat. Some of this heat gets transferred from the heads, to the fuel rails, and subsequently to the fuel itself. Once fuel reaches it's boiling point, it will cause fuel pressure to fluctuate unpredictably. To combat this, T1 has incorporated 1/4" phenolic spacers between the heads and fuel rails to alleviate this issue. Phenolic has excellent insulation properties, and will keep as much heat out of the fuel rails as possible.
To connect the two fuel rails, Goodridge's 'G Line XF' hose was selected, which is the company's premium line. This hose is constructed of super-light Aramid braid (which provides excellent durability), with a PTFE inner bore which is smooth inside (for increased flow), and is convoluted (for amazing flexibility). The hose is fully compatible with all fuels, including race gas, E85, and methanol. The lightweight crimp on hose ends ensure a leak-free seal and light
weight.
T1 R35 GTR Fuel Rail Kit includes:
- (1) pair of CNC billet fuel rails (anodized black)
- (2) -6 ORB fittings for the rails
- (1)Goodridge G Line Lightweight crimped hose (to connect the rails)
- (5) M8 stainless steel allen bolts for mounting
(5) phenolic spacers for heat insulation.
**Injectors sold separately.
