Carpokes Porsche Forum

Rennbay vs Lindsey Racing. Looking for opinions on what approach is best, rubber vs stainless steel. Thanks.
Ken

motoken wrote: Mon Jun 09, 2025 7:14 pm Rennbay vs Lindsey Racing. Looking for opinions on what approach is best, rubber vs stainless steel. Thanks.
Ken

Rennbay every day of the week!

And just use the OEM for the line between fuel rail and damper?

motoken wrote: Tue Jun 10, 2025 5:41 am And just use the OEM for the line between fuel rail and damper?

Exactly...

I almost installed the Rennbay lines this weekend, but sidelined by a different fuel issue on the car. I was wondering, should I/could I put a protective layer on over the lines like some other applications do?
Thanks!

There are competing schools of thought on that. The factory did put an abrasion/heat shield over those hoses -- originally a thick rubber casing, and more recently an aluminized heat sleeve. The heat from the headers is brutal on the rubber, so Porsche shielded them. Some people get longer hoses and route them toward the fire wall and then loop back toward the fuel pressure regulator and damper, so that they aren't sitting directly over the headers. On the down side, shields make it harder to see the condition of the hose and detect cracks before they become leaks; and potentially trap gas leaks and soak the shield, which could make a fire worse. Not sure there is a right answer, but I lean toward adding a heat shield if the hoses are over the headers. Whether you add a shield or not, the real key is inspecting the health of the lines often -- say every time you change the oil. That's really the only way to prevent disaster.

Ditto Tom - I went with the longer rennbay hoses and routing and shielded as well. Everything looks ok but only been a few months so far.

Thanks guys. Any recommendations on who to buy the shielding from? I noticed Rennbay does not sell it. How about LR?

Amazon has options - search for “Heat Hose Fiberglass Wrap Shield Sleeve Wire Fuel Line Heat Shield ”. Seller for me was zhubang. There are a few different lengths/diameters.

Try Summit Racing. They have endless brand-name heat sleeve options.

https://www.summitracing.com/search/par ... t%20sleeve

I've used several DEI heat sleeve products in the past from Summit, and it always seems high quality.


I like the look of the aluminized fabric sleeves, like the factory used, but the specs aren't as impressive as some of the more serious sleeves. The 'lava tube' for example is good to 2000F and can be pulled open to inspect the hoses inside. The block would melt before this thing burns:

https://www.summitracing.com/parts/hsp-281081


Check the diameter you need though.