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DannoXYZ · November 13th, 2020, 12:32 PM

Seeing as how you have custom engine, there is no off-the-shelf exhaust that will be optimum. Best to build your own exhaust. Here's some reference material:

Performance Trends - Engine Analyser Pro - I use this for my turbo auto engines, you must be extremely precise with your measurements and inputs. Best to model factory engines first and make sure simulated dyno matches stock engine exactly. Then make modifications and upgrades

https://www.centuryperformance.com/e...nd-length.html
https://www.enginelabs.com/engine-te...gn-and-theory/
http://www.superstreetonline.com/how...om-made-header
https://itstillruns.com/exhaust-head...n-8428151.html

November 13th, 2020, 12:32 PM	#2
DannoXYZ ninjette.org certified postwhore Name: AKA JacRyann Location: Mesa, AZ Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot. MOTY - 2018, MOTM - Nov '17	Seeing as how you have custom engine, there is no off-the-shelf exhaust that will be optimum. Best to build your own exhaust. Here's some reference material: Performance Trends - Engine Analyser Pro - I use this for my turbo auto engines, you must be extremely precise with your measurements and inputs. Best to model factory engines first and make sure simulated dyno matches stock engine exactly. Then make modifications and upgrades https://www.centuryperformance.com/e...nd-length.html https://www.enginelabs.com/engine-te...gn-and-theory/ http://www.superstreetonline.com/how...om-made-header https://itstillruns.com/exhaust-head...n-8428151.html