96-Pi_stang
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If I cut the tips off my exhaust would it affect the quality of the sound?
Exhaust question
- Thread starter 96-Pi_stang
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96-Pi_stang
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Yeah maybe about 3 inches after the tips. I'm kind of wanting the exhaust to be hidden after the back tires.
Ninety8stang
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umm, first can i ask why?
OnyxCobra
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+1 if you don't want the tips just unbolt the end part of it.
96-Pi_stang
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I just hate the look of the exhaust hanging out behind the back wheels. I thought if I dumped it that I would probably lose some mpg?
Ninety8stang
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You won't lose any gas mileage. If anything you'll gain fuel economy. A better breathing engine is more fuel efficent. Although it isnt enough that you will even notice it.
96-Pi_stang
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Ninety8stang said:
Should I just cut it after the muffler?
ttocs
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nah before it, really get the milage up!
96-Pi_stang
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ttocs said:
lol, seriously?
MustangChris
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first off....
do it right.
get dumps. they are cheap and any muffler shop can install them for you. They aim your exhaust down towards the pavement for safe exit...
you dont want to just "cut" your "tips" "3 inches back" because your exhaust will exit directly under the gas tank. This will heat up your gas ***REDUCING*** mpg. Also, your fuel pump(s) is fuel-cooled. the hotter the gas in your tank, the more problems you will have with your fuel pump.
it may also melt your gas tank cover allowing dirt and water to get on your tank speeding up any rusting that may be occuring.
damaging that cover also leaves it open to road debris to damage it...
also, exhaust is alot more complex than people think. making an engine "flow better" is basically the "right idea." BUT, when it comes to exhaust there are MANY other variables to take into account.
ANYWAYS, removing your tips after your muffler and replacing them with turn-downs will:
be illigal in some states where emissions is required (colorado requires exhaust to exit past the passenger compartment. for example)
be track-legal
be safer than just cutting the tips.
give you the option to go back to running your tips ifyou dont like the turn-downs.
make your exhaust invisible (for the most part) from the back of the car.
make a *slight* change in sound.
make your exhaust *appear* louder (simply because it will be sitting closer to your window.)
make a *slight* change in performance/MPG --you wont be able to notice--
here is a link to a product that may or may not work for your application....
http://www.jegs.com/i/PYPES/958/PVD10/10002/-1
but you get the idea.
do it right.
get dumps. they are cheap and any muffler shop can install them for you. They aim your exhaust down towards the pavement for safe exit...
you dont want to just "cut" your "tips" "3 inches back" because your exhaust will exit directly under the gas tank. This will heat up your gas ***REDUCING*** mpg. Also, your fuel pump(s) is fuel-cooled. the hotter the gas in your tank, the more problems you will have with your fuel pump.
it may also melt your gas tank cover allowing dirt and water to get on your tank speeding up any rusting that may be occuring.
damaging that cover also leaves it open to road debris to damage it...
also, exhaust is alot more complex than people think. making an engine "flow better" is basically the "right idea." BUT, when it comes to exhaust there are MANY other variables to take into account.
ANYWAYS, removing your tips after your muffler and replacing them with turn-downs will:
be illigal in some states where emissions is required (colorado requires exhaust to exit past the passenger compartment. for example)
be track-legal
be safer than just cutting the tips.
give you the option to go back to running your tips ifyou dont like the turn-downs.
make your exhaust invisible (for the most part) from the back of the car.
make a *slight* change in sound.
make your exhaust *appear* louder (simply because it will be sitting closer to your window.)
make a *slight* change in performance/MPG --you wont be able to notice--
here is a link to a product that may or may not work for your application....
http://www.jegs.com/i/PYPES/958/PVD10/10002/-1
but you get the idea.
96-Pi_stang
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Thank you very much!
OnyxCobra
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Chris I have to call BS on a lot of that but one thing i will say is removing the tailpipes makes a huge difference in sound, not just a slight difference lol.
MustangChris
Mythic Level
OnyxCobra said:
call BS on what? dont be shy, as i have thick skin.
"first off....
do it right.
get dumps. they are cheap and any muffler shop can install them for you. They aim your exhaust down towards the pavement for safe exit..."
true. cutting tips 3" back would not be considered the "right" way of doing it by any means. dont think that would earn the O.P. any points at a car show...
"you dont want to just "cut" your "tips" "3 inches back" because your exhaust will exit directly under the gas tank. This will heat up your gas ***REDUCING*** mpg. Also, your fuel pump(s) is fuel-cooled. the hotter the gas in your tank, the more problems you will have with your fuel pump."
eh. this is true. the only "stretch" of the truth would be the "reducing" mpg. i guess i should have stated that it would only hurt mpg, not make it appear that its a for-sure thing... cutting his exhasut 3" back would not "help" his MPG in any way shape or form. the only difference he would notice is lower MPG. (is what i was trying to communicate)
on that same note, saleen had to postpone it's center-mount exhaust because their cars couldnt pass emissions. The exhaust was heating the gas tank too much. (I can dig out the book i read this in, if needed. i just have to find it in my boxes from moving... lol)
and, our pump(s) are indeed fuel cooled.
"it may also melt your gas tank cover allowing dirt and water to get on your tank speeding up any rusting that may be occuring.
damaging that cover also leaves it open to road debris to damage it..."
hm. may never happen, but i would really hate to read this guys next thread that starts out with "why didnt anyone tell me exhaust gets hot" ...
as for rusting tanks, although it appears they are sprayed with a protective substance, my 1996 gas tank was indeed rusting when i removed it.
"also, exhaust is alot more complex than people think. making an engine "flow better" is basically the "right idea." BUT, when it comes to exhaust there are MANY other variables to take into account."
very true. I cant count how many old guys tell me "an engine is just an air-pump."
this is a true statement, but this an exteremly simplistic way of looking at our engines and properly modifying them.
exhaust is a very common part of cars to over-simplify. every guy with a welder thinks that they can just crank out an awesome custom exhaust... there is flow, temerature, back pressure, pipe diameter, angles of bends, material composition, coatings, scavanging, collector shape and size, collector design, o2 sensor positioning, and probably other things that people just dont think about when it comes to exhaust.
so, to save a 9 page debate thread, i just skipped all that mumbo-jumbo to help out...
are our engines just "air pumps?" yes. is "making them breath better" the name of the game? yes. is opening the exhaust as much as possible the right way to do that? no.
"be illigal in some states where emissions is required (colorado requires exhaust to exit past the passenger compartment. for example)"
true. he will have to check his own state to see what his regualtions are. if OEM equipment places exhaust exit in a location other than the rear of the car, it will pass colorado emissions (Cobra R, Lightning, are two examples) if the driver places the exhaust anywhere before the "passenger compartment" ends on the horizontal plane of the vehicle, they will fail.
"be track-legal"
true.
"be safer than just cutting the tips."
true. not only will exhaust gases be pushed further away from the car (and driver) we avoid all the gas-related problems mentoned above.
"give you the option to go back to running your tips ifyou dont like the turn-downs."
True. if he doesnt like his turn-downs, take them off, sell them, and put the tips back on. if he does like them, sell the tips and take the ol' ball-n-chain out for dinner....
"make your exhaust invisible (for the most part) from the back of the car."
depends on angle your looking at the exhaust (obviously) and if he coats/paints them a stealthy color like onyxcobra-black. ;-)
"make a *slight* change in sound."
we removed my cat back on my car starting with tips when i sold my exhaust system. i found no change (except it was "louder") regarding tone/pitch/sound... it might stop some resonating sound, or maybe a rattle or something . .. . nothing i personally noticed on my 1996.
"make your exhaust *appear* louder (simply because it will be sitting closer to your window.)"
i found my same exhaust sound when removing my tips, simply was closer to my ears, which made it louder. my flowmasters didnt sound any different other than that.
"make a *slight* change in performance/MPG --you wont be able to notice--"
obviously removing his tips will change everything i mentioned above. pipe length, scavanging, bends, etc. etc. etc. are all being changed... the change he is making will theoretcically make a difference, but not one he should notice.
"here is a link to a product that may or may not work for your application....
http://www.jegs.com/i/PYPES/958/PVD10/10002/-1
but you get the idea."
these probably arent exactly what hes looking for, due to his axle position, but i wanted him to get an idea of the shape/function/availability of turn-downs. I'd hate to see him go to a muffler shop and spend $350.00 on turndowns because no one took the time to link him to a set of $20.00 ones.
g36 monkey
Post Whore
Lmao, I must say, Chris just won.
Don't just cut the tips, dumps are a better way to go.
And yes you could cut before the muffler, it would just be illegal ;p
Don't just cut the tips, dumps are a better way to go.
And yes you could cut before the muffler, it would just be illegal ;p
OnyxCobra
Post Whore
I think Chris really likes typing.
