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litle88 · 01-15-2010, 04:14 PM

Explain to me why you guys prefer not to tune a 1 7/8 or EVEN a 2 in primary long tube headers? As long as the AFR is the same throughout the test with all the headers then its fair. Not tuning a 2in primary and getting AFR reading at the tailpipe will not be accurate enough for a REAL test.

01-15-2010, 04:14 PM	#55
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	Explain to me why you guys prefer not to tune a 1 7/8 or EVEN a 2 in primary long tube headers? As long as the AFR is the same throughout the test with all the headers then its fair. Not tuning a 2in primary and getting AFR reading at the tailpipe will not be accurate enough for a REAL test. __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.