Single or Dual exhaust?
I tried using search but nothing showed up.What's better to have a dual or single exhaust for a Turbo II?
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There are countless threads about this topic. Do a search on duals and collected single.
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Talk to mazdaspeed7. Or look for posts under his ID. He understands exhausts pretty well.
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Or talk to 1987RX7guy;)
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Turbos dont use the same principles as n/a's. You cannot go too big for hp, the only limiting factor on size is the diminishing returns. For a turbo, just make sure it flows well, thats all that matters. 3" single, or if you want it quieter, have a y pipe, and run duals.
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Originally posted by TakumiJr Or talk to 1987RX7guy;) |
Save weight, go for a single!
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Originally posted by deevious Save weight, go for a single! |
3" single. The Apexi GT spec is a nice unit for the TII. Less weight contributing than would be with two cannisters and a y pipe.
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Are these good cat-backs?
5Zigen Fire Ball series cat-back 5Zigen Cannon Ball series cat-back HKS Dragger series cat-back What would you guys suggest? :scratch: |
Originally posted by TakumiJr Or talk to 1987RX7guy;) |
If you are looking for big gains look for a downpipe/presilencer combo. Catback's do not give that big of a gain. You could always go for the 3inch turbo back systems out there but those are expensive.
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Originally posted by 3RotorRocket Are these good cat-backs? 5Zigen Fire Ball series cat-back 5Zigen Cannon Ball series cat-back HKS Dragger series cat-back What would you guys suggest? :scratch: Like said above, the cat back will give you decent gains but if you go to a downpipe and 3" from the turbo back you'll see a greater return. Make sure you do the necessary mods to offset the new parts (wastegate etc.) |
Originally posted by 3RotorRocket Good point there about the weight. Wouldn't there be more air flow and it won't get as hot as quick as a single would.Is single better for a Turbo II? The three most important issues are cost, noise and appearance. Dual costs more, single is noisier and which looks better is entirely up to the individual. :) |
I would like dual cause they look better but I just don't have alot of money to dump into a new exhaust.
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Originally posted by Aaron Cake He has been banned. |
I like the single option for cost effective and weight reduction, personally.
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Originally posted by Aaron Cake He has been banned. :) :) :) :) :) |
Originally posted by 88IntegraLS Wow!!!! :) :) :) :) :) And IMO, unless you get the second half circle filled in, duals look better on an FC. |
It's really a non-issue. A dual system adds ~20lbs compared to a single, which is less than 1% of the car's total weight. You'll never notice that. there aren't too many things you can pull out of a car that weighs over 20lbs by itself. you're right, 20lbs isn't even a percent of your cars weight, but if you can strip your car as much as you can and save weight wherever you can, you can easily achieve a 200lb loss, which is nearly 10%. howi |
Originally posted by Aaron Cake He has been banned. |
Nevermind, spoke to the man myself.
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Originally posted by Howi you're right, 20lbs isn't even a percent of your cars weight, but if you can strip your car as much as you can and save weight wherever you can, you can easily achieve a 200lb loss, which is nearly 10%. howi |
20 lbs is a lot indeed.
also, a single pipe would have less surface area for an equal volume of air. less surface area = less friction, right? |
Well, I think the factory dual exhaust was merely for appearance. The CS Single drops 36lbs off of the car, too bad it dosent exit the passenger side though. I forget the formula, but there is a way to find out how big of a dual exhaust you would need to equal the flow of a single exhaust. If you're looking for a quiet exhaust, get a Racing Beat Dual exhaust though.
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