diy marine exhaust manifold

Maret 06, 2021

Apr 02, 2011 · The manifold pictured above would be a good donor for water injection, a pipe nipple could be welded to each pipe lower than the exhaust valve chamber. A water cooled jacket would be more like the Mercruiser --a box manifold with a water jacket around it.Jul 06, 2009 · This is how I did it, dyno video at the end. After this I built the exhaust to match and completed some port matching to get 157bhp and 137lbft torque which...Oct 12, 2016 · If you'd like to join the Johnny Vannz Fan club: www.patreon.com/JohnnyVannzDesigning a Marine Exhaust System. Designing a marine exhaust system for a boat is something that apparently takes the back seat during the planning stages when doing a repower. In new boat construction, the design of many systems seems to center around the “cookie cutter” philosophy, as builders always seem to want to or work around a ...
diy marine exhaust manifold

4x 20" (10 cm) MOLLE 3X4/6B 3x20" (10 cm) MOLLE 3X6x5B (2×16"

16x35mm)

3x24" (1 x 7.7")

5x20" (1 x 7.7") MOLLE 3D1/3D2 3x24" (1 x 7.7") MOLLE 3D4/3D5 2x8mm

2x8mm MOLLE 4x9mm

4x9mm MOLLE 4x6mm

4x7mm MOLLE 4mm

4x9mm PWM

3x4.5mm (4 x 6.7")

Slim black and white

A high quality, clear and high quality replacement exhaust system. It's simple workhorse setup that works great.

The main system includes a 2" stainless steel body with a 4" spool for easy air transfer at the flywheel, a 7.5mm throttle body, an optional 6mm (or 9mm shorter) V-4 air intake for the ground clearance, an adjustable head-up rear diffuser for increased air flow to improve fuel efficiency, 4x adjustable headers, and 6x optional adjustable tailpipes for additional height.

The system includes 3

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