406 Vette
secondary air flap spring tension on the Q Gadjet
The secondary air flap is set by adjusting the spring tension,I have them set loose so they open like a mechanical secondary,they are pushed open with a plastic tie strap in this photo,I use a marine type accelerator pump with a stiff spring to cover the secondary tip in "bog",if I step into the secondarys slowly it does have a slight hessitation.I first had them set stiffer for a totally smooth tip in but the car was too hard to drive,I could not tell when they started to open and when they did the car breaks traction,so I set them loose so they open with the pedal like mechanical secondarys and just step the pedal a little quicker for more of a accelerator pump shot to cover the hessitation,it's not long and I have to get back out of the secondarys to keep the engine from over reving.When I get the car to hook better I'm sure I will have to drill the pump discharge holes a little larger to cover the secondary tip in.
www.popularhotrodding.com/tech/0503phr_carburetor_tech_ho...
www.circletrack.com/enginetech/ctrp_1008_quadrajet_racing...
www.thecarburetorshop.com/Ethanoluse.htm
www.carcraft.com/techarticles/ccrp_1210_seven_budget_carb...
secondary air flap spring tension on the Q Gadjet
The secondary air flap is set by adjusting the spring tension,I have them set loose so they open like a mechanical secondary,they are pushed open with a plastic tie strap in this photo,I use a marine type accelerator pump with a stiff spring to cover the secondary tip in "bog",if I step into the secondarys slowly it does have a slight hessitation.I first had them set stiffer for a totally smooth tip in but the car was too hard to drive,I could not tell when they started to open and when they did the car breaks traction,so I set them loose so they open with the pedal like mechanical secondarys and just step the pedal a little quicker for more of a accelerator pump shot to cover the hessitation,it's not long and I have to get back out of the secondarys to keep the engine from over reving.When I get the car to hook better I'm sure I will have to drill the pump discharge holes a little larger to cover the secondary tip in.
www.popularhotrodding.com/tech/0503phr_carburetor_tech_ho...
www.circletrack.com/enginetech/ctrp_1008_quadrajet_racing...
www.thecarburetorshop.com/Ethanoluse.htm
www.carcraft.com/techarticles/ccrp_1210_seven_budget_carb...