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#905
Thread Starter
Joined: Jan 2006
Posts: 16,282
Likes: 438
From: Huntsville, AL
Vacuum behind the throttle body was pulling it through the pump and hose. Pretty substantially too. I have heard of this being an issue, but short of putting a solenoid near the nozzle I think the only work around is putting the nozzle in front of the TB. Not a huge issue just not as clean.
#906
Thread Starter
Joined: Jan 2006
Posts: 16,282
Likes: 438
From: Huntsville, AL
So I took off the bypass actuator thing...the reference lines has a very small orifice in which to allow air in and out of the bellows. This makes response very slow to close the valve. I even hooked up the line to my air compressor and 60psi still takes a good second to full close. I am going to try and drill that out some and see if that helps the responsiveness, probably from a 0.005" hole to .015" or so (smallest bit I have).
#908
So I took off the bypass actuator thing...the reference lines has a very small orifice in which to allow air in and out of the bellows. This makes response very slow to close the valve. I even hooked up the line to my air compressor and 60psi still takes a good second to full close. I am going to try and drill that out some and see if that helps the responsiveness, probably from a 0.005" hole to .015" or so (smallest bit I have).
I was going to plumb my meth after the TBs as well, but that requires a solenoid which adds another potential point of failure, according to Julio(Alky Control).
#909
Thread Starter
Joined: Jan 2006
Posts: 16,282
Likes: 438
From: Huntsville, AL
Yea, spring closes the valve, but the spring can only expand it as fast as air can fill it depending on the spring rate. I dont see an obvious way to take it apart and put in a heavier spring, so next option is let it get rid of the vacuum faster. If that is not satisfactory then I will reference it under the rotors instead of after the TB to be able to put positive pressure on top of it to help close it faster.
I have a meth solenoid actually, just dont really want to install it.
I have a meth solenoid actually, just dont really want to install it.
#910
So I took off the bypass actuator thing...the reference lines has a very small orifice in which to allow air in and out of the bellows. This makes response very slow to close the valve. I even hooked up the line to my air compressor and 60psi still takes a good second to full close. I am going to try and drill that out some and see if that helps the responsiveness, probably from a 0.005" hole to .015" or so (smallest bit I have).
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