Whats wrong with my Carbs?, wants to stall leaving the traffic light. |
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Whats wrong with my Carbs?, wants to stall leaving the traffic light. |
HansJan |
Mar 25 2017, 09:12 PM
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#1
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Member Group: Members Posts: 394 Joined: 5-April 16 From: Sugar Land TX Member No.: 19,860 Region Association: Southwest Region |
Hello,
Not having much luck with the Search function. The car: 1972, with 103mm cylinders (2.3l), aftermarket cam and larger valves with double springs. Fuel supply: Dual EMPI HPMX 44 Carburetors, Jets: .55 Idle, 1.55 main, Air 1.75. History: After car-fire engine was out, heads taken off and some studs and springs replaced. Changed to quieter exhaust. Had trouble with dialing in the carburetors and changed the jets to the recommendations from EMPI (see above). It runs a lot better now. Remaining complaint; The car runs pretty good (especially above 2,800) RPM. However; It takes me a while to leave after each stop (stop signs traffic lights etc) because the car want to stall. When I push the accelerator to quickly the RPM dips down, and car will die. Only when I ease on the paddle very gently, it will increase in RPM, and I can lift clutch at above 1,500 RPM. Anyone here understands this issue? |
HansJan |
Apr 28 2017, 05:10 PM
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#2
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Member Group: Members Posts: 394 Joined: 5-April 16 From: Sugar Land TX Member No.: 19,860 Region Association: Southwest Region |
It's done. With the new jets, the car is running way better. No more stalling at each stop and smooth transition between idle and driving. Car runs nicely from below 1,000 up to 5,000 rpm. At 5,000 rpm the rev-limiter kicks in, like throwing out a boat anchor. Final jetting: Venturi:36 Idle: 0.65 Main: 1.70 Air: 2.20 Special thanks to all that have contributed to the solution. You know who you are, and "YOU ROCK". There is a little back-firing left, at deceleration. But I'm not going to let that keep me from driving and enjoying the ride. Loving every minute, a left hand turn at the neighborhood round-about is just a 495 degree turn for me now. Turns out Im only 12 years old, stuck in this 47year old body. Consider this tread closed. Next up: changing ignition switch. Btw: Once the car looks worthy (might be a while) I will defenitely put the 914world.com sticker on the rear window. Without this community I would have ditched this car long ago. |
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