Thread: Help with my 502 ramjet

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Hi guys, My first post. I'm having trouble with my
502 ramjet bbc. It stumbles and dies when it gets hot.
Not hot enough to overheat, but with the a/c on in the
summer heat it just quits. I know that it is heat related,
so my question is, Is there something in the computer
that tells the engine to shut off above a certain temp??
If I wait 5 minutes it starts right back up until it gets
hot again then stumbles and shuts off. I thought at first
it was vapor lock, but that doesn't make sense in a F.I.
motor. Any Ideas would help. Thanks.

Jon.

Hi Jon, Welcome to the board! .... This is a great site, as you'll see ;O)..... Although I have no idea how to solve your current problem & I'm certainly not saying that no one here can't answer your question as there are many extreemly intellegent car guys/gals here. But what I do know is that Sallee Chevrolet has a question/answer board that has a lot of info on the 502. I was considering getting one for awhile and I read a bunch about them there...... hope this helps ya, & again, WELCOME bill

Thanks bill, I'll check it out.

Jon.

Update on my problem. Turns out that my fuel pump, when running on low speed(has a step down speed control that reads engine rpm) heats up and heats the fuel to a point that causes vapor lock or pump cavitation, but when in "full speed" mode it runs cool and does not overheat at all. Talking to aeromotive to see if I need to replace the pump of the controller.

Thanks,
Jon.