Quote:
Originally Posted by Nigel_S
My understanding is that you are a fair bit better off with long straights and fairly sharp 90 degree bends. If nothing else, it is easier to get the correct length since the flow will not go around the centre line of all those varying angle bends, but I think it is better for maintaining the gas speed too.
What is the reason for the megaphone collector when it is going into a cat anyway? Do the lengths change when using a megaphone since the gas will be slowing?
Why did Honda put the engine backwards? With my MG it is naturally the correct length since it starts off in the wrong direction and then comes back under the engine, you just need 2 90 degree bends plus straight pipe and the Ys, although it is hard to fit the flexi if you go for the version with long primaries.
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Sharp bends are the enemy of a properly designed header.