[DeTomaso] Fuel Pump Advice

[Rob Dumoulin]

Update based on feedback I received.  Thanks to everybody.

   - Using a Bypass-style regulator is recommended, especially at my HP
   range.
   - Add a 100 Micron fuel filter before the pump, regular one after
   - 7 PSI is what I should target as inlet pressure to the carb
   - An oil pressure cutoff switch is important
   - An inertial cutout switch is a nice addition
   - A momentary (manual) or timed primer circuit is recommended

What are my options for the bypass circuit?

   - Add a return port to the gas tank (Not a desired choice for me)?
   - Add a T before the fuel pump and recirculate warm fuel
   - Use a pump with an internal bypass (Is this a good option)?

Can I use the tank vent line somehow and vent the tank some other way?

On Thu, Dec 29, 2016 at 1:07 PM, Rob Dumoulin <rob at dumoulins.net> wrote:

> My Titus block build is about to start and it was realized that the block
> was not machined for a mechanical fuel pump like I expected.  Call it blind
> faith vs. Murphy's Law.  The engine will be in the 600 HP range with an 800
> CFM carb.  Any suggestions for a trouble-free electric fuel pump that can
> be wired for safety into an oil pressure sensor shutoff?
>
> Rob
>
-------------- next part --------------
   Update based on feedback I received.A  Thanks to everybody.
     * Using a Bypass-style regulator is recommended, especially at my HP
       range.
     * Add a 100 Micron fuel filter before the pump, regular one after
     * 7 PSI is what I should target as inlet pressure to the carb
     * An oil pressure cutoff switch is important
     * An inertial cutout switch is a nice addition
     * A momentary (manual) or timed primer circuit is recommended

   What are my options for the bypass circuit?
     * Add a return port to the gas tank (Not a desired choice for me)?
     * Add a T before the fuel pump and recirculate warm fuel
     * Use a pump with an internal bypass (Is this a good option)?A

   Can I use the tank vent line somehow and vent the tank some other way?
   On Thu, Dec 29, 2016 at 1:07 PM, Rob Dumoulin <[1]rob at dumoulins.net>
   wrote:

   My Titus block build is about to start and it was realized that the
   block was not machined for a mechanical fuel pump like I expected.A
   Call it blind faith vs. Murphy's Law.A  The engine will be in the 600
   HP range with an 800 CFM carb.A  Any suggestions for a trouble-free
   electric fuel pump that can be wired for safety into an oil pressure
   sensor shutoff?
   RobA

References

   1. mailto:rob at dumoulins.net