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Showing results for tags 'vapor lock'.
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Hi all, I have a 1977 280z with a 1982 rebuilt L28ET swap. I'm working on my tune, but I think I have vapor lock. symptoms I'm experiencing are: stalling at higher temperatures (> 180), even while idle cannot hot start even with prime pulse cycling cannot hot start even with a flood clear crank even when hot start works (after cool down) engine slowly stumbles and comes to life gradually and stalls out soon (3-5 minutes) I have tried clearing the line before cranking. Would love to find some tips to manage the heat or provide a couple of places I need to start with. I checked my fuel lines for leaks, and checked hte o ring pressure gauge (negligible drop in pressure after ~1 hour). However, when I came back to check the fuel pressure after an hour I noticed the fuel rail is still warm. Is that normal? http://imgur.com/a/ayrDw <------- engine bay pics. Car specs: L28ET with stock turbo MegaSquirt n Spark Extra EFI (fully programmable) Turbonetics (I think) T3/T04B turbocharger (internal wastegate) 260z intake manifold (no EGR) Intercooler with 2.5" aluminum piping Griffin aluminum radiator 16" electric fan Aeromotive Fuel Filter Russel fuel filter at pump 255LPH Walbro Fuel Pump MSD Blaster Coil 440cc Supra injectors (flow tested) JSK O-ring Fuel Rail Aeromotive Fuel Pressure Regulator
