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Good info.

I'm a little surprised too that the stock exhaust was that much of a problem.

Apparently flowbench measurements with a standard ATR cat-back versus the style you made (one that Tim made, with ONE 30-degree 36d 3" bend) there was 58% more airflow at the same pressure.

I like one-bend exhausts.

-Chris

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The Pansy Patrol - a 3000GT/Stealth car blog with how-tos

Pearl Yellow 1994 R/T TT w/84k - FOR SALE! new 4-Bolt factory short block, DR StgII heads, Titan TD05 headers, 14B turbos w/ ported 7cm^2 housings, 3" minimum-bend catless exhaust, SCE oil pan, RPSII clutch, Fidenza flywheel, OZ F1 Plus 17x9.5" wheels, Kumho Ecsta MX 245/45 tires, Drweldin DSM SMICs, 3SX engine mounts (Maximal solid front), GReddy 60mm P/H/W boost, Carbotech Panther Plus & Bobcat pads w/ slotted/drilled rotors, KSport GT-Pro coilovers, Maximal rear camber arms, SCE balljoints, ABS delete w/ cockpit-mounted Wilwood proportioning valve, AC delete, EGR/evap/dashpot delete, cruise/vacuum-tank delete, '95 Lexan headlights, McCulloch 4300K HIDs, GReddy Type-S BOV, solid shift bushings; Misc Parts: Walbro341, 20# fixed-back seats, Accelerated Moto catch can

09-18-2005, 12:09 PM	#7 (permalink)
Multiades vehicular thaumaturgist Join Date: Apr 2000 Location: Woburn, MA Drives: 1994 Stealth TT Trader Rating: (17)	Re: Measuring stock exhaust restriction Good info. I'm a little surprised too that the stock exhaust was that much of a problem. Apparently flowbench measurements with a standard ATR cat-back versus the style you made (one that Tim made, with ONE 30-degree 36d 3" bend) there was 58% more airflow at the same pressure. I like one-bend exhausts. -Chris __________________ The Pansy Patrol - a 3000GT/Stealth car blog with how-tos Pearl Yellow 1994 R/T TT w/84k - FOR SALE! new 4-Bolt factory short block, DR StgII heads, Titan TD05 headers, 14B turbos w/ ported 7cm^2 housings, 3" minimum-bend catless exhaust, SCE oil pan, RPSII clutch, Fidenza flywheel, OZ F1 Plus 17x9.5" wheels, Kumho Ecsta MX 245/45 tires, Drweldin DSM SMICs, 3SX engine mounts (Maximal solid front), GReddy 60mm P/H/W boost, Carbotech Panther Plus & Bobcat pads w/ slotted/drilled rotors, KSport GT-Pro coilovers, Maximal rear camber arms, SCE balljoints, ABS delete w/ cockpit-mounted Wilwood proportioning valve, AC delete, EGR/evap/dashpot delete, cruise/vacuum-tank delete, '95 Lexan headlights, McCulloch 4300K HIDs, GReddy Type-S BOV, solid shift bushings; Misc Parts: Walbro341, 20# fixed-back seats, Accelerated Moto catch can