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It has always been difficult to smoothly accelerate in my '71 240Z (original owner). You push the pedal a little, and it jumps (good if you like whiplash). I have to feather the clutch so that I don't kill someone in a parking lot.
I thought about replacing the 20W oil in the SU's with 30W to try to dampen the response, but the manuals say NOT to use 30W oil in the carb damper chamber.
Does anyone know how to tame the initial response so it's not so jumpy?
I've restored the car, and this is one of the remaining items I would like to clear up. Thanks.
 

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RE: increase accelerator pedal travel

i had same thing happen in my last 240Z (1972). my mechanic friend adjusted a slightly longer pedal travel for the accelerator. my original setup was so that a small downward pedal movement gave too much carb response. after the adjustment, i didn't have to stomp on the pedal to make the car go quick either. for your info, i used transmission fluid in the damper chamber. hope this helps.
 
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