Explaining, Designing And Building A Single Cylinder Four-Stroke Exhaust Pipe : SSR Part 10

I'll explain how four-stroke exhaust tuning works and build my own single cylinder four-stroke exhaust system in this video. The entire process from designing the pipe to fabrication is shown. Learn about wave tuning and inertia tuning and how to determine exhaust pipe diameter and length with formulas. A simple method for creating a tapered header. Lots of info for anyone considering building their own DIY four-stroke exhaust system, especially for single cylinder engines like scooters, mopeds, pit bikes, dirt bikes and more.

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Parts, Tools & Supplies (Some Are Affiliate Links) :

Four-Stroke Performance Tuning : https://amzn.to/3v3oNHl
Competition Engine Building : https://amzn.to/30hcOrt
Performance Automotive Engine Math : https://amzn.to/3ejWK0b
Performance Exhaust Systems : https://amzn.to/30gKwNP
Slip-On Muffler : https://amzn.to/2PAzFfj
16ga U-Bends : https://amzn.to/3c5XEuw
1/4" Steel Plate : https://amzn.to/3bohqSV
Other Pipe/Tube & Supplies From : https://www.mcmaster.com
Welder : https://amzn.to/31ue378
Bandsaw : https://amzn.to/3dctDtq
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   • SSR Lazer 5 Moped Project  

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#ExhaustTuning #ExhaustBuild #TunedPipe

0:00 Intro
1:16 Four-Stroke Exhaust Tuning Explained
3:45 Formulas For Primary Pipe Length & Diameter
6:24 Measuring Curved Pipes
8:31 Tapered Header Info
10:11 RPM Range
11:27 Doing The Math
15:41 Port Length
18:04 Building Begins
22:28 Tapered Headpipe
29:47 Flange Mount
38:47 Muffler Location
46:57 Pipe Support Bracket
51:16 Muffler Support Bracket

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Songs provided from the YouTube Audio Library. (In order of appearance.)
Sun Spots by Silent Partner (Intro)
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Sources & Links :

"Performance Exhaust System Design And Theory." Trevor Anderson, "Engine Labs". https://www.enginelabs.com/engine-tec.... Accessed Feb. 25, 2021.
"Muffler and Header Pipes Information - Thumpstar." Thumpstar,    • Muffler and Header Pipes Information - Thu...  . Accessed Feb. 23, 2021.
"Piranha 160-R Dyno Vs.Piranha Daytona 150cc Anima 4 valve." Wholesale Cycle Piranha Pit Bikes,    • Piranha P160-R Dyno Vs. Piranha Daytona 15...  . Accessed Feb. 23, 2021.
"High Performance Exhaust Pipes For Pit Bikes." TBoltUSA, https://tboltusa.com/store/tech.php?p.... Accessed Feb. 23, 2021.
"Calculate Exhaust Header Length." Stephen P. Mullen, Oldsmar, FL, http://www.nightrider.com/biketech/ca.... Accessed Feb. 23, 2021.
"Tuned Exhaust Pipe Length Calculation For Single/Twin/Fours." "Mez Porting". http://www.mezporting.com/exhaust_len.... Accessed Feb. 23, 2021.
"Four 4 Stroke Exhaust Pipe Calculator", Version 14. "Ariyant Creative". (2021) https://play.google.com/store/apps/de.... Accessed Feb. 23, 2021.
"Tapered FXR header. Ideas?" "KiwiBiker". https://www.kiwibiker.co.nz/forums/sh.... Accessed Aug. 18, 2020.
"Harley Exhaust System Design." "RB Racing". https://rbracing-rsr.com/exhausttech.htm. Accessed Feb. 23, 2021.
-Bell, A. Graham. (2012). "Four-Stroke Performance Tuning." Haynes.
-Baechtel, John. (2011). "Performance Automotive Engine Math." Cartech Inc.
-Baechtel, John. (2012). "Competition Engine Building." Cartech Inc.
-Mavrigian, Mike. (2014). "Performance Exhaust Systems." Cartech Inc.
-"Two-Stroke Pipe Building Information." 190mech, "49ccScoot.Com". https://49ccscoot.proboards.com/threa.... Accessed Mar. 14, 2021.