Hey Ken,
Rennbay (rubber) is quieter, cheaper, and easier to install but may degrade over time. Lindsey Racing (stainless) is more durable and better for high-performance setups but can be noisier and pricier. Depends on your priorities daily driver vs. track use. Both are solid choices.
Fuel lines...
Hey Everyone,
Thought I’d chime in here. Personally, not a fan of hose covers. They make it harder to inspect the lines properly. Sure, they might buy you some time, but what’s the use if you can’t see the clock ticking? You’ll only know something’s gone wrong when fuel starts to leak, and by then it’s already a problem.
Like Robbi mentioned earlier, all rubber breaks down eventually. Bare hose, sleeved and even the stainless braided stuff. No exceptions.
The upside? Most hoses are multi-layered. The outer layer goes first, and that’s usually where you’ll see cracks start to form. It’s a visual cue. Doesn’t mean the hose is about to fail right then, but it’s your sign to plan a replacement.
With the Rennbay setup, it’s Aeroquip socketless hose and fittings, so swapping things out is pretty easy. The fittings are reusable, and the hose is easy to source, or I can send you some if needed. It’s about $7 per foot, and once you’ve got the kit, you can change out the rubber anytime without much hassle.
I skip the covers because they hide the stuff I actually want to keep an eye on. And since replacing the rubber is cheap and straightforward, I’d rather just see what’s going on and deal with it when the time comes.
Thought I’d chime in here. Personally, not a fan of hose covers. They make it harder to inspect the lines properly. Sure, they might buy you some time, but what’s the use if you can’t see the clock ticking? You’ll only know something’s gone wrong when fuel starts to leak, and by then it’s already a problem.
Like Robbi mentioned earlier, all rubber breaks down eventually. Bare hose, sleeved and even the stainless braided stuff. No exceptions.
The upside? Most hoses are multi-layered. The outer layer goes first, and that’s usually where you’ll see cracks start to form. It’s a visual cue. Doesn’t mean the hose is about to fail right then, but it’s your sign to plan a replacement.
With the Rennbay setup, it’s Aeroquip socketless hose and fittings, so swapping things out is pretty easy. The fittings are reusable, and the hose is easy to source, or I can send you some if needed. It’s about $7 per foot, and once you’ve got the kit, you can change out the rubber anytime without much hassle.
I skip the covers because they hide the stuff I actually want to keep an eye on. And since replacing the rubber is cheap and straightforward, I’d rather just see what’s going on and deal with it when the time comes.
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PSU_Crash
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I recently did this with the RennBay kit. No complaints! I did get some DEI heat sleeving to cover the lines since I did not use the long lines to route away from some of the heat. I don't love the look, but fire is bad 
'86 Zermatt Silver 944 N/A 
'86 Mitsubishi Starion - Purpose built SM class Autocross car
'87 Chrysler Conquest - Mid LS Swap
'86 Mitsubishi Starion - Purpose built SM class Autocross car
'87 Chrysler Conquest - Mid LS Swap
Thanks for all the help and suggestions. I ended up going with the Rennbay set and an oem damper line. I was doing spark plug wires as well, so that freed up some space and made the job relatively easy. I did end up putting a velcro'd "heat shield" material around the hoses.
While I was at it, I replaced all the fuel stuff at the back of the car: filter, pump, and rubber lines.
Ken
While I was at it, I replaced all the fuel stuff at the back of the car: filter, pump, and rubber lines.
Ken
1986 Porsche 951
2016 Porsche GT4
2016 Porsche GT4