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Old 09-02-2012, 01:01 PM   #105
pwpanas
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Join Date: Oct 2005
Location: GA, USA
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Quote:
Originally Posted by warmkop View Post
Thanks,yes doing it my self. Installed the second pump and wiring it is a walbro 400l/ph pump must just install the second fuel filter tomorrow and hopefully i can start her and look for any problems and then it must go for the exhaust next week.
You probably already know these items about installing a second pump, but just in case:
1) Be sure to run a brand new fused circuit from the battery, triggered via 30+ amp relay
2) Be sure to use at least 14 gauge wire. Anything less could heat up and the last thing you want in your fuel tank is a hot wire.
3) Use the oem ground pin to get power for the 2nd pump through the top of the fuel tank. Run a 14 gauge wire to a 1/4" threaded rod run through the tank cover to ground both the oem pump and the new pump. Do this instead of trying to run a wire through the top of the fuel tank, as fuel and vapors will flow through the insulation of the wire.
4) Run at least a -6AN line for the new pump, and run that entire system (with inline filter) to one side of your aftermarket fuel rail
5) Use a fuel pulsation dampener bypass from the oem fuel line to the other side of the aftermarket fuel rail

Any other questions be sure to ask...
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Phil '94 Supra Turbo, 6spd, 'APU'+
Displacement is no replacement for boost.
Life begins at 30psi.


NB: Please consider posting any help requests in a new thread instead of asking me for help privately. About 99.9+% of the time, private help requests end up covering great information that could be very valuable to other forum members. If you have a good reason for needing the help request to be private, I'll consider it. If not, then why not give everyone else the opportunity to pitch in too, and/or learn from the information? Remember, there's no such thing as a dumb question. We're all here to help within this family of Supra owners.
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