Quote:
Originally Posted by Wilber
I’ve always understood you have to be careful if modifying the exhaust of an engine, ie restrict the air flow increases back pressure which could mess with the engine performance. Not sure how serious this could be, anyone care to expand on this?
|
You are correct. Adding back-pressure restricts flow and will impact performance as well as fuel economy. The governor on the engine will generally make up for the loss in power by increasing the throttle to maintain the proper RPM while under load.
One other “bad” thing about increasing back pressure is that it will cause the engine to run hotter - not just due to increased throttle settings, but because the engine gets part of its cooling through moving the heat out and away...
Thor Forums
