[Fot] TR6 race car re-build - Fuel line questions

[Jason Ostrowski]

Lots of questions there. 
I’m not a TR6 guy but I’d like the fuel pressure regulator to be in the engine compartment. For Tuning and regulating purposes; close to where you are at when you’re watching the motor and gauges.
Jason Ostrowski
Friendly Ghost Racing 
1969 Triumph GT6+ racecars

Sent from my iPhone

> On Jun 11, 2025, at 10:17 AM, Mark Cook via Fot <fot at autox.team.net> wrote:
> 
> 
> All,
>  
> So, I have gutted and stripped the #55 ‘69 TR6 race car first purchased, having a proper roll cage installed and painted, and will be installing a newly built engine with triple Weber 45 DCOEs.  Will be ordering some parts while cage is installed and body painted.
>  
> Brings me to my questions.   What size fuel lines – 5/16” (-5) or 3/8” (-6)?  Also, thoughts on 100% steel braided PTFE, or combination of metal fuel line (front to back) with braided to connect to the fuel cell and Webers?  Fuel pump, filter and pressure regulator will be in the trunk with the fuel cell.   Return line?  The 6 previously had fuel injection and a fuel return line.  Not sure it is necessary for the Webers.
>  
> Thanks!
>  
> Mark Cook
>  
> During Chuck Arnold’s ownership (pre-2018)                             Prior Owner 2018-2023                                                                          Now (coffee table stage)                                                                                                                                                                                                                 
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