Wide Open Throttle - Dies

Posted by Joe On 2024/5/21 23:52:23
Hey gang. Not really a major issue here, but would love to trouble shoot. The car is a 1950 Super Deluxe Eight, 327, Ultra, Carter 643s carb (rebuilt a couple years ago), mechanical pump pumping around 3.75 psi at idle, float height verified 3/16" per the Daytona instructions, distributor recently rebuilt...

Compression on this engine is lower - around 85 psi front to back. Head gasket replaced recently, valves lapped, lifters cleaned, but original valve guides and pistons/rings.

The car generally does everything it's supposed to it. It runs smoothly throughout the powerband, idles well, runs maybe slightly warmer than center on the gauge, 40 psi for oil at cruising speeds; around 10 at idle.

But, in the two years I've owned the car, I've never tried to wide open throttle the car from a dead stop. I've eased into it before, get sort of a running start, which has always yielded mixed results (although tonight it worked beautifully). Timing is around 10° (this was the advice from Advace Distributors, who rebuilt my IGP).

But from a dead stop, nothing to WOT, the car basically dies. No bogging, no delay, iust... total knock out. I take my foot off the pedal, it comes back, and I can continue. I typically ease into the accelerator and go about always down, which is about good to keep up with the traffic my neck of the woods.

I know she isn't a race car, and I most definitely don't want or need it to be. But I'm mainly curious here (because I was surlrised) - should it respond in some meaningful way from idle to WOT? Or is that just generally something you don't do with these cars. Like I said, it's 74 years old, but I figure it's better when all the systems in the car are working the way they're supposed (assuming this isn't normal). Thanks, all!

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