| I flow tested three TBs today. 58mm, 58mm ported to 61mm and my billet 62mm TB. Tests were done on a SuperFlow 600 @ 28" H2O
Untouched 58mm = 484.16 CFM Modified 61mm = 566.98 CFM Billet 62mm = 598.83 CFM. So here's the entire rundown. 350.62 CFM = Stock 50mm INCREASE 468.28 CFM = CNCd 54mm (33.5%) 484.16 CFM = 58mm (3.4%) 534.26 CFM = Stanza 60mm (10.3%) 566.98 CFM = 58mm to 61mm (6.1%) 598.83 CFM = Billet 62mm (5.6%) 656.08 CFM = Stanza to 63mm (9.5%) I should have some photos of the 62s for you guys in a day or so. Rob
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