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: 391 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? |
porschetub |
Mar 26 2017, 01:43 PM
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#2
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Advanced Member Group: Members Posts: 4,695 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
The smaller vents will lose some power right @ the top but this will be in a range you rarely drive in,what you will see is a big improvement in bottom end power and response,any small loss in power will be soon forgotten once you have improved drivability .
It was common knowledge earlier on with these carbs that they were not well setup ''out of the box'',this has been covered by aircooled.net and documented on theSamba.com. When tuning carbs always carry out a full ignition tune up first,good leads, plugs,cap,etc and correct timing,otherwise its a waste of time. |
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