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Dump Valves and Fitting Kits

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I am looking to fit some dump valves to my car, 1990 jap inport, does anyone have any suggestions as I have heard that some valves cause idling issues. Looking for valves and fitting kit. any advice would be gratefully recieved. Cheers Jason

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    You need duel piston dump valves, due to the nature of the zed, it has a MAF so meters air, dump to atmos if set up correctly shouldn't effect your idle, it will be if you are pushing it hard and dumping loads, you may cut out when you put your foot on the clutch to stop, nothing a quick key turn wont sort out though, or if you are moving, just life the clutch pedal.

     

    Oh and i have a set for sale, but you would need blanking plugs, they go where the recircs go.

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