Reply With Quoteok, with alll that understood, what would I be changing by putting a different spring or a shim under the spring it these two poppet valves?
If I understand this right, the valve in the main bypass is just to hold the main bypass closed for starting, thereby directing the fuel to the injectors until enough fuel pressure is built up to pop the valve open- then it stays open while the system is running. Would you agree with that?
I dont really understand the purpose of the poppet valve in the idle bypass.
I'm thinking if I can shut the idle bypass off a little sooner, it will cover the hesitation, and I can leave the barrel valve setting where it's at for a clean idle. Most of the time this engine is at idle while I'm driving to the store, the only time I throttle it is when the cops are chasing..can't have a hesitation then! :crossx: :crossx:
Yes..the main poppet is just to hold closed until the motor starts. So no messing with that.
Now the other poppet is now a "secondary"......and only functional at 1/4 throttle or less......so a stiffer spring in that will put more fuel to the motor than a lighter spring would. Consider this poppet as a "part throttle bypass".
With this system as plumbed.....it is going to be a combination of the spring in the poppet on the secondary....and the barrell valve adjustment to get rid of the hesitation.
Systems plumbed like this are for cars mostly....and staging a car on the starting line to keep the motor from loading up. But you have to find the balance to keep from a flat spot in the throttle.
I ran a similar system in the drag cars with powerglides which worked much to my advantage in staging. I could idle in smooth and stage exactly where I wanted to. Since I was against the converter while staged...the motor stayed cleaner and left better. Yet if I yanked the throttle quick in the pits...I had a little hesitation.
The flat hated this type of system and I had to go back to conventional Enderle plumbing.
