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Re: frame modification
Quote:
Originally Posted by 60apache
better flow and better sound on ls1
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The X-pipe doesn't provide better flow...it does quiet down the exhaust (which is the primary goal with X-pipes on from the factory since the cross pulses help attenuate noise at lower RPMs) - if that's what you're looking to achieve. Being part of lots of exhaust research (flowbench, CFD modeling and real world) when I worked at Banks Engineering and the X-pipes' scavenging effects don't really occur until the upper RPMs, the range varied according to tubing diameter and distance from the collector.Just my $0.02 if it helps with routing your exhaust.
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1963 C-10: Deluxe-optioned cab, shortbed, fleetside
Pontiac 462 ci, Kauffman D-Port alum. heads
4L80E, narrowed sheetmetal Ford 9-inch
Tubular front and rear suspension
Custom 6-piston front disc and 4-piston rear disc brakes
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