Motor Trend's Engine Master's Video Series just did an episode on manifolds for boost. They played with runner length on a FAST 102 at 11 psi. They concluded that longer runner length is still better under boost for the best torque curve. At that kind of boost I might worry about blowing up a plastic manifold although I see a post or two on the Corvette forum stating that they had run 19-20 psi on a FAST 102 without issue.
2006 M6 BOM 39K miles
Kooks Long Tubes, catted mids thru Magnaflow Mufflers
Cam Motion Stage 2 Cam 0.553" lift, 214/220 at 0.050"
XAir OTRCAI, FAST 102 Intake
Monster Level 2 Clutch Package, MGW-P shifter
Carbon Fiber 1 piece DSS Driveshaft
Gforce Anti-Wheel Hop Axles, Gforce Heavy Duty Differential Mount Bracket
409 RWT and 407 RWHP
1/8 mile best: 2.04(60'), 5.61(330'), 8.49(660'), street tires and 2500' density altitude, lifting between gears
Last edited by lejambcr; 05-27-2019 at 05:52 AM.