Fundamental exhaust question...
#31
10-04-2006, 01:36 AM
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^I was referring to the knowledge that you want me to 'trust' you have. You posted twice in this thread before I bashed you. Both posts failed to answer the questions. And the second post criticized me for pushing questions that were never answered... Yea, I have been keeping track of this thread. Apparently, I failed to realize that people dont read thoroughly before attempting to answer questions.
#32
10-04-2006, 01:37 AM
#33
10-04-2006, 01:42 AM
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LOL calvin... Yea, some things arent as important as others. This part serves a very important function, but apparently no one (besides ISM) knows anything about it. They just know the basics, a few basic concepts and the info supplied by exhaust companies. With something as important as this (and somewhat costly with some systems), wouldnt you want to know how and why it works the way it does?
#34
10-04-2006, 01:46 AM
#35
10-04-2006, 01:54 AM
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#37
10-04-2006, 01:56 AM
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#39
10-04-2006, 02:09 AM
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#40
10-04-2006, 02:10 AM
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ISMSOLUTIONS,
Ahhh... I see a little bit if salesmanship here
If you're asked a question you dont know, give a totally different answer that just a little bit off from the original question. Most of the time, you fool the person, and they wont ask again. Now if they realize that you didnt answer their question, BS BS BS!
ISMSOLUTIONS, no worries... I understand. Its part of being a salesman, and a business man
Clean G 4D: What makes a duck a duck, and a chicken a chicken?
ISMSOLUTIONS: Oh, thats an easy one. Come to my website where I sell ducks and chickens. You can buy them at a discount.
Clean G 4D: Thanks, but that doesnt quite answer my question. I just wanted to know what it is that makes a duck a duck and a chicken a chicken... and why one is better than the other.
ISMSOLUTIONS: AHHH... question too hard. And by the way - your a DUCK...oops I spelled that wrong!!!
smooooooooth 
Hes asking to learn about the fundamentals of exhausts... not the fundamentals of bullsh*ting your way out and dodging a direct and simple quesion.
Ahhh... I see a little bit if salesmanship here
If you're asked a question you dont know, give a totally different answer that just a little bit off from the original question. Most of the time, you fool the person, and they wont ask again. Now if they realize that you didnt answer their question, BS BS BS!ISMSOLUTIONS, no worries... I understand. Its part of being a salesman, and a business man
Clean G 4D: What makes a duck a duck, and a chicken a chicken?
ISMSOLUTIONS: Oh, thats an easy one. Come to my website where I sell ducks and chickens. You can buy them at a discount.
Clean G 4D: Thanks, but that doesnt quite answer my question. I just wanted to know what it is that makes a duck a duck and a chicken a chicken... and why one is better than the other.
ISMSOLUTIONS: AHHH... question too hard. And by the way - your a DUCK...oops I spelled that wrong!!!
smooooooooth
Hes asking to learn about the fundamentals of exhausts... not the fundamentals of bullsh*ting your way out and dodging a direct and simple quesion.
Last edited by Silverbolt; 10-04-2006 at 02:16 AM.
#42
10-04-2006, 02:31 AM
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Originally Posted by ISMSOLUTIONS
Additionally -
The reason you go duals is because the a single extra large pipe will slow the exhaust pulse down too much and allow the exhaust to cool as it flows, thereby reducing effectiveness as the vacuum effect will be lost.
Duals allow the exhaust to flow at the proper rate, when tuned correctly, and maintain most of it's temperature all the way to the tailpipes - keeping and enhancing the vacuum effect.
The reason you go duals is because the a single extra large pipe will slow the exhaust pulse down too much and allow the exhaust to cool as it flows, thereby reducing effectiveness as the vacuum effect will be lost.
Duals allow the exhaust to flow at the proper rate, when tuned correctly, and maintain most of it's temperature all the way to the tailpipes - keeping and enhancing the vacuum effect.
Example 1:
You have two ice cubes. You drop one in a cup of water. Take the other one and crush it to little peaces and drop it into another cup of water. The one with the crushed ice will cool alot faster because you increased surface area of the ice, while still having the same volume.
Example 2:
Eating candy; having it whole and not chewing it will only allow it to disolve the surface. If you chew it, you still have the outer surface, but now have the additional cracked peices and additional surfaces to disolve. Thats why we taste more when we chew up our candy/food.
With that being said. If the pulse in a single can be tuned to be identical to any properly tuned dual, it should actually be slightly better because the there is less surface area of the piping to cause it to cool down too quickly before it the exhaust exits.
#43
10-04-2006, 03:33 AM
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^Thats a really good point Silverbolt. I trust ISM has an answer for this...
Also, I am still curious as to why a single exhaust would need 4.5" piping? Is that measurement resulting from adding up two 2.25" pipes? If so, thats incorrect... heres another paint masterpiece...
Referring to my original post, the single pipe of similar sizing would be 3.5" if you were to combine two 2.5" pipes. Using 2.25" pipes, the single would result in 3.2" piping (using logic stated in the my first post).
Originally Posted by ISMSOLUTIONS
In a single system, to achieve similar results - you would need a 4 1/2" or larger single exhaust.
Referring to my original post, the single pipe of similar sizing would be 3.5" if you were to combine two 2.5" pipes. Using 2.25" pipes, the single would result in 3.2" piping (using logic stated in the my first post).
Last edited by Clean G 4D; 10-04-2006 at 03:40 AM.
#44
10-04-2006, 04:39 AM
Originally Posted by Clean G 4D
LOL calvin... Yea, some things arent as important as others. This part serves a very important function, but apparently no one (besides ISM) knows anything about it. They just know the basics, a few basic concepts and the info supplied by exhaust companies. With something as important as this (and somewhat costly with some systems), wouldnt you want to know how and why it works the way it does?
I really do apologise.
#45
10-04-2006, 01:11 PM
Not to knickpic but if a particular car is single turbo, the exhaust will more than likely be a single pipe exhaust. Forced induction especially turbos aren't as concerned with exhaust pulses and scavanenging as they are with total pipe dia area and actually getting the exahaust out as fast and easy as possible.
When the exhaust pulses are directed into the turbo turbine section, it's no longer pulsing.
When the exhaust pulses are directed into the turbo turbine section, it's no longer pulsing.
Originally Posted by ISMSOLUTIONS
Well - you can look at our site and see the 20 HP gain dyno with our exhaust and resonated testpipes on an completely stock car...so that estimate is a good one. More HP will be seen from the intake and exhaust mods when combined - over their simple addition to a stock car.
A simple way to KNOW that a true dual flows better than a single piped exhaust:
Look at the last 50 years of automotive racing and forced induction vehicles. There isn't a real pro out there without a dual exhaust - especially and FI'd vehicle....why? Because they need MAX FLOW - and that what TRUE DUAL gives you....if you don't trust 50 years or so of professional racing and engine dynamics - then you wont trust anything any of us have to say - no matter what. Keep in mind as well - the new G35 is now made with a true dual exhaust - do you think they did that to de-tune it????
When you start a thread and ask for info - and MANY people agree and give info on why a duck is a duck....you have to stop assuming it's still a chicken.....
Rick
A simple way to KNOW that a true dual flows better than a single piped exhaust:
Look at the last 50 years of automotive racing and forced induction vehicles. There isn't a real pro out there without a dual exhaust - especially and FI'd vehicle....why? Because they need MAX FLOW - and that what TRUE DUAL gives you....if you don't trust 50 years or so of professional racing and engine dynamics - then you wont trust anything any of us have to say - no matter what. Keep in mind as well - the new G35 is now made with a true dual exhaust - do you think they did that to de-tune it????
When you start a thread and ask for info - and MANY people agree and give info on why a duck is a duck....you have to stop assuming it's still a chicken.....
Rick