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Old 08-30-2013, 09:00 PM
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Join Date: Jul 2004
Boat: 1998 Ski Nautique
Location: End of my rope.
Posts: 25,902
Originally Posted by FrankSchwab View Post
For those who ask whether reducing a pair of 3-4" exhausts to a single, apparently smaller, output adds backpressure, the answer is "Probably".

Can that damage a Small Block Chevy like the OP asked? Certainly not. Think of where that engine was originally designed to go - in a Chevy car or truck with crappy exhaust manifolds, a Cat, and a small single exhaust. How much backpressure do you think it has in that Factory design?

If you want to argue that an FAE might impact the horsepower available at WOT, or increase fuel consumption at a particular performance level due to poor matching of intake/cam/valves/exhaust, fine, keep the arguments there.
Works fine. Correct Craft has been doing it for years.

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Red 1998 Closed Bow Ski Boat, Ford 351, 310 hp, Acme 4 blade, Perfect Pass SG.


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