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The 914 has a variable regulated fuel pressure setup for the turbo.Q; Is there any reason why the return line off the regulater can't be 'teed' back into the feed line before the pumps instead of back into the tank??Ignorance is bliss............but only till you realise you were.You can always get the answer you want, if you ask enough experts.
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G'day Birdy,Could that be vapour lock?Fred
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Gday Birdy With EFI engines if you tee it back into feed line you en up with a build up of air this is caused by either the pump cavitating or the fuel coming out from under pressure as it leaves the regulator & stuffs up efi as pump can't turn air into presure BUT BUT with a standard carby bowl air can evauate through breather so it wouldn't be a problem maybe?Butch.
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Butch has pretty much hit the nail on the head. Whether it could be a problem or not would depend on how the regulator is set up to purge any air from the system. A constant recirculation of cool fuel minimises vapor lock problems. If I remember correctly, the 914 pressurises the carbys under boost so a constant even fuel pressure (with no air lock surges) would be imperitave.Tim McClure
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mmmmm, vapor locks are wot i was worried bout, and the outlet from the regulater to the tank is on top, so if any air did get in, itd just circula n grow, especialy ona 50c day. Not good. Back to square one.Ignorance is bliss............but only till you realise you were.You can always get the answer you want, if you ask enough experts.
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Ah,No, back to the main fuel tank...Cheers,Nick
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