hey guys how are you well finally putting frontmount and boosting that thing to 8psi, well soon. Guys i just needed some help on what disk to use and spring. Will the optional hardspring and the 3.25 disk will give enoguh fuel for that setup with stock injectors. If not what spring and disk should i use.
#38717, "RE: New setup with SFMU" In response to Reply # 0 Feb-07-03 09:53 AM by ner947
buy the thing from Vortech, it will include all of the inscructions, recalibration discs, rings, and springs.
for stock injectors, you're looking for about 100 psi of fuel around 8-9 psi of boost. i believe that's the largest disc that comes with the kit, which also happens the be the one that's already installed. you may or may not want to swap the spring though.
i will be running 415 cc/min injectors, and i'm looking for around a 3:1 rising rate, which is the 2.72" disc. i'll use my AFC to fine tune (making sure not to go much above 12 psi of boost or so, don't want to blow up my new engine with spark advance) the fuel curve once i get it as close as i can with the bleed valve/idle screw. i will be using the "hard" black spring that comes with the S-FMU.
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