Quote:
Originally Posted by 78w72
Connecting 4" dryer hose to 2.5" exhaust pipes won't cause any problems with back pressure, it's almost 2x bigger than the factory exhaust pipes, mechanics/shops use extension hoses on the exhaust like that all the time during the winter months when they need to run an engine inside the shop... nor will it blow out exhaust crossover filling from reverberation. block off plates are known to get blown out just from the normal exhaust gases over time.
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Good to know on one end bad on the other, might mean I have another problem.
I will ask this: Since after taping and sealing the connection from the Exhaust tips to the 4" metal dryer hose, we eventually heard the Engine make a different sound and when we added an additional rubber to plastic material from a lawn type blower to the end of the metal hose about another 6', the diameter was greater, than that of the 4" metal hose and that was also taped together using metal duct tape as well. Combined 16' approx. length made a change in motor sound, I quickly stopped this procedure, I originally thought that I may have disturbed the Exhaust Valve seals? Note: I had replaced the Valve seals within 10 k miles that I put on this second-hand project. It is unknown what the full mileage is on this engine?
So, could you explain to me "what the difference in motor sound" occurred while I had the dryer hose attachment installed and why I all of a sudden heard a different sound that doesn't belong after test driving this vehicle on the road, without yet discovering the holes in the crossover plugs?