Details: 4 Piston Racing Direct Injection 5500 PSI Soft Line

[blueroadster]

Huge shout out to 4 Piston Racing for developing this solution for those considering or already running an aftermarket HPFP. Inlet/outlet ID is 5/32”. Here are details followed by pictures that speak for themselves:

Link to purchase

Product Details:

The 4P Direct Injection Soft Fuel Line is a braided, Teflon-lined line built for E85 and alcohol-based fuels. It supports fuel flow beyond 1,000 hp in direct-injection-only applications, and its pressure rating is 2x the operating pressure of the CTR DI system. Unlike previous attempts at soft lines, the threaded fuel line fittings are manufactured to match OEM specification.

The line is Teflon coated internally and is 100% compatible with E85:

• Works with OEM fuel pump
• Works with XDI fuel pump
• Works with Full-Race fuel pump

 

[HondaHoon]

Not a fan of 4 Piston. I personally went with Jester's version. A little more expensive, but quality is on the highest tier.

https://vtecslayer.com/products/hpf...tent=JesterTunedLine&utm_medium=product-links

 

[blueroadster]

Not a fan of 4 Piston. I personally went with Jester's version. A little more expensive, but quality is on the highest tier.

https://vtecslayer.com/products/hpfp-flexible-fuel-line-fk8-fl5-de5?shop_consented_scopes=email:verified+openid+pay:session_token+profile+shop:account_uuid&shop_sign_in=true&utm_campaign=CivicXI&utm_content=JesterTunedLine&utm_medium=product-links

Awesome...Different design where both are manufactured to high quality standards. Both eliminate the use of brazed joints at the ferrule connection and the functional ratings are almost identical. 4 Piston uses a Teflon lined hose whereas Jester's uses a PTFE lined hose however, both materials are chemically identical.

Ignoring price, I still prefer the 4 Piston version but am glad that upgrade options now exist.

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