C5 QTP Cutouts - Exhaust Flow Question
Thread Starter
Racer
Joined: Aug 2017
Posts: 277
Likes: 54
From: Westminster CO
C5 QTP Cutouts - Exhaust Flow Question
I have been looking at a lot of a cutouts, and it has been bugging me that all you see on the C5 Vettes are cutouts mounted almost perpendicular to the piping after the H or X pipe.
Now everything i learned in fluid dynamics says, you want the flow to have the same general direction, so the path of least resistance is more easily achieved. AKA Y pipes, you are going to the right of the Y (muffled exhaust), the left of the Y opens up (cutouts) and the exhaust flow easily redirects out of the more open side
Can someone explain to me how perpendicular cutouts, basically making a T, don't cause flow issues compared to a Y pipe cutout? is it a space issue?
Now everything i learned in fluid dynamics says, you want the flow to have the same general direction, so the path of least resistance is more easily achieved. AKA Y pipes, you are going to the right of the Y (muffled exhaust), the left of the Y opens up (cutouts) and the exhaust flow easily redirects out of the more open side
Can someone explain to me how perpendicular cutouts, basically making a T, don't cause flow issues compared to a Y pipe cutout? is it a space issue?
Drifting
Joined: Nov 2016
Posts: 1,660
Likes: 365
From: SF Bay Area
Theoretically you're not wrong, but for all practical intents and purposes, it doesn't matter much in the case of exhaust gases. Yes, space is an issue, and also cost. It is much more expensive to cut in a proper Y than it is to just tack on a perpendicular output, and there isn't much benefit to the Y. The stock C5 exhaust flows fairly freely as is, the main point of the cutouts is for the noise. Cutouts before the catalytic converter on the other hand...
The second option on this thread is what I want to do to my Corvette: https://www.corvetteforum.com/forums...t-outs-c5.html Bypasses the muffler while still going out the stock exhaust tips.
The second option on this thread is what I want to do to my Corvette: https://www.corvetteforum.com/forums...t-outs-c5.html Bypasses the muffler while still going out the stock exhaust tips.
Thread Starter
Racer
Joined: Aug 2017
Posts: 277
Likes: 54
From: Westminster CO
Theoretically you're not wrong, but for all practical intents and purposes, it doesn't matter much in the case of exhaust gases. Yes, space is an issue, and also cost. It is much more expensive to cut in a proper Y than it is to just tack on a perpendicular output, and there isn't much benefit to the Y. The stock C5 exhaust flows fairly freely as is, the main point of the cutouts is for the noise. Cutouts before the catalytic converter on the other hand...
The second option on this thread is what I want to do to my Corvette: https://www.corvetteforum.com/forums...t-outs-c5.html Bypasses the muffler while still going out the stock exhaust tips.
The second option on this thread is what I want to do to my Corvette: https://www.corvetteforum.com/forums...t-outs-c5.html Bypasses the muffler while still going out the stock exhaust tips.
And yeah, that second option about the muffler bypass is really nice, pretty much same concept as the B&B Fusions
