DUAL EXHAUST?
#3
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Re: DUAL EXHAUST?
If your doing it for looks, splittting it somewhere after the cat would work, and might be easier. although some models of the f22 have a header like 4-2-1 eshaust manifold and down pipe, if you had one of these you could cut it while its still two pipes, and run those back and probably gain some power.
#4
Re: DUAL EXHAUST?
If your doing it for looks, splittting it somewhere after the cat would work, and might be easier. although some models of the f22 have a header like 4-2-1 eshaust manifold and down pipe, if you had one of these you could cut it while its still two pipes, and run those back and probably gain some power.
thats what i want to do but cant i do it on the factoy exhaust manifold? all i would have to do is split the pipes right after the manifold and pipes connect with three bolt. the hard part is findng a place to hold everything down.
#5
Honda-Tech Member
Re: DUAL EXHAUST?
If you are looking to go dual from the header back.
Have you thought about what size pipes you are going to need to run? Or the pipe routing under the car? Remember if the pipes are too big you will lose all of your exhaust velocity and the engine will fall flat on it's face. You will need to calculate what size pipes will work with your engine first. As for your choices for routing the pipe. There is only one tunnel down the middle of the car. Then you come to the fuel tank that only allows you to go to the passenger side. If you do this you will need to custom make some extra exhaust hangers.
What are your plans for the catalytic converter and resonator? Get rid of them all together or are you going to run a dual system for them as well? (2x cat 2x resonator) I'm not sure that you will enjoy the sound of a I4 Honda without resonators. The law may dictate what you can or cannot do.
#7
Re: DUAL EXHAUST?
I was thinking about this same question. Cause that manifold bright13 was talking about is the one I have. (93 EX). From what I have read that is where the xtra horsepower comes from on the 92-93. So if he or we where to dual it out from the manifold (ghostaccord) how could we figure out what size pipe we should use? And would it even fit? I would think just dualling out with the same size pipe from the manifold (the two that leave the manifold and go into one at the cat) would be safe and would be pretty healthy for performance. Now I didn't say back pressure, and I probably won't ever again.
Last edited by morepowerjoe; 07-26-2009 at 05:30 AM.
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#8
Re: DUAL EXHAUST?
ya its pretty complicated! im thinkn of the v6 dual pipes but wouldnt that have an effect on the engine sense its not made for a 4 cyl. if the diameter of the pipes r the same as the 93 then ok but i doubt it will be. if i would to buy this kit then i would have to remove some stuff cause they cant be fitted on due to the floor boards
#9
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Re: DUAL EXHAUST?
You're not going to get better performance from 2 pipes than 1 pipe. In fact a lot of S2000 owners see better gains with a single outlet than two.
Just go to any exhaust shop and have them split your piping after the catalytic converter somewhere (probably closer to the rear arms) and run it to both sides. I can't imagine it would be more than $300 or so if you supply the mufflers.
#10
Honda-Tech Member
Re: DUAL EXHAUST?
(ghostaccord) how could we figure out what size pipe we should use? And would it even fit? I would think just dualling out with the same size pipe from the manifold (the two that leave the manifold and go into one at the cat) would be safe and would be pretty healthy for performance. Now I didn't say back pressure, and I probably won't ever again.
If you really want to do something like this. Do some reasearch into header & exhaust design. That's what I've been doing. Now that I'm back in school taking pipe design it's helping out with my hobbie as well. Metallurgy, schedule, volumetric efficiency and Thermodynamics used to be foreign terms to me. Now I know what they mean. I'm still learning what they are all about though.
My suggestion would be not to ask for a number when you could be asking for the formulas to get that number. A formula for getting a number will help you more than just someone giving you a number.
If you just want to go by a generic formula (found via a google search) Here is what you want. Reduce down to 3/4" or 1" piping from the two down pipes. This is calculated for a 132 cid 4 cylinder with a 4,500 rpm target
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