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Old 03-01-2012, 09:15 PM   #1
Hurley
 
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Name: Hurley
Title: BLAKLUNG
Status: Not Here
Join Date: Apr 2008
Location: Statesville, NC
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Posts: 3,698
Swap fuel plates to help lean out bottom end response?

SO I acquired what appears to be a gov spring from a 180 pump, installed it in my afc tonight, and Whoa yeah!... However I'm still fairly smokey off the bottom. Here's where I'm at:
- "0" plate full forward
- new AFC spring, factory shim underneath. Modified factory diaphragm washers
- foot has been shaved ~.100"
- dialed in the starwheel to allow afc foot to bottom on housing right before coil bind
- pre-boost screw barely touching afc shaft (any tighter and it's going to make the situation worse)
- full travel right at ~42psi


My Issue: the spring is shorter than the stock spring, so it puts the foot farther forward at rest; in an effort to keep maximum fuel delivery I installed the afc housing full forward on the pump. This makes it soggy off the bottom, but like i said, I absolutely love the response once it gets moving.... Could I swap my #0 plate to something like a #6 and lean out the bottom a bit more? Or would that pull more fuel than I think?
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95 2500 RCSB 2wd back-halfed and 4-linked
5x14/7mm +100cc/4k/11-blade billet 63/68/.91 T4
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03 RCLB 4x4, SSR
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