about exhausts

speedsatya · 9th August 2004, 02:31

guys,
just wanted to know some thing about exhausts.
1.why do some cars have exhausts on the LHS while some on the RHS.
2.while cars have their exhausts pointed downwards why do bikes have them pointed upwards.

satya

aadix · 9th August 2004, 13:09

satya buddy, u got a typo error, check it , u typed rhs twice

killjoy · 9th August 2004, 16:21

Quote:

Originally Posted by [b

Quote[/b] (speedsatya @ Aug. 09 2004,01:01)]guys,
just wanted to know some thing about exhausts.
1.why do some cars have exhausts on the RHS while some on the RHS.
2.while cars have their exhausts pointed downwards why do bikes have them pointed upwards.

satya

no idea

Jaggu · 9th August 2004, 16:53

vaastu?? lol..

k my guess on RH or LH is, exhausts are designed so that it blows away from the side of the street away from pedestrians.. so in a LT hand drive country (where the vehicle is originally designed) chances of exhaust on to the RT..

up and down.. not really in certain cars basically the bend is to avoid the vacum formed at the rear end at high speeds from burning up the bumper and plastics.. earleir corsas had this prob if i remember correct..

bikes its more to do with aerodynamics and aesthetics..

Shan2nu · 9th August 2004, 19:25

Even in some bikes if you've noticed, the xhaust pipe might be pointing upwards, but the xhaust outlet is usually curved to make it straight.

As far as cars are concerned, i don't think it really makes a difference, it's just a matter of where the company wants it. The Vtec has it's xhaust on the rhs but if you look under the car, the xhaust pipe coming from the engine to the rear wheel, is in the middle.

Regards...
Shan2nu

Jaggu · 9th August 2004, 19:46

most of the cars have the pipes running in the middle so that they can be accomodated under the hump in the chasis (for ground clearance), unless they have 4 wheel tranny.. and only the end piece will be routed to the sides

Psycho · 11th August 2004, 00:24

Well here are the reasons:

1) As for the LHS and the RHS on Cars it is dependent as to where the fuel tank is located as the tailpipe would be on the other side of that for safety reasons so as not to heat up the fuel tank.

2) As for the bikes the angling of the exhaust upwards gives the exhaust pipe more length hence more area to muffle the sound.

Hope that answers ur query

speedsatya · 11th August 2004, 21:13

thanx everyone

satya

9th August 2004, 02:31	#1
speedsatya Senior - BHPian Join Date: May 2004 Location: bangalore/manga Posts: 3,169 Thanked: 738 Times View My Garage	guys, just wanted to know some thing about exhausts. 1.why do some cars have exhausts on the LHS while some on the RHS. 2.while cars have their exhausts pointed downwards why do bikes have them pointed upwards. satya
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9th August 2004, 13:09	#2
aadix Senior - BHPian Join Date: Mar 2004 Location: hyderabad Posts: 1,597 Thanked: 14 Times	satya buddy, u got a typo error, check it , u typed rhs twice
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9th August 2004, 16:53	#4
Jaggu Team-BHP Support Join Date: May 2004 Location: Bangalore Posts: 20,215 Thanked: 15,907 Times	vaastu?? lol.. k my guess on RH or LH is, exhausts are designed so that it blows away from the side of the street away from pedestrians.. so in a LT hand drive country (where the vehicle is originally designed) chances of exhaust on to the RT.. up and down.. not really in certain cars basically the bend is to avoid the vacum formed at the rear end at high speeds from burning up the bumper and plastics.. earleir corsas had this prob if i remember correct.. bikes its more to do with aerodynamics and aesthetics..
	() Thanks

9th August 2004, 19:25	#5
Shan2nu Senior - BHPian Join Date: Feb 2004 Location: Hubli - Karnata Posts: 5,533 Thanked: 125 Times View My Garage	Even in some bikes if you've noticed, the xhaust pipe might be pointing upwards, but the xhaust outlet is usually curved to make it straight. As far as cars are concerned, i don't think it really makes a difference, it's just a matter of where the company wants it. The Vtec has it's xhaust on the rhs but if you look under the car, the xhaust pipe coming from the engine to the rear wheel, is in the middle. Regards... Shan2nu
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9th August 2004, 19:46	#6
Jaggu Team-BHP Support Join Date: May 2004 Location: Bangalore Posts: 20,215 Thanked: 15,907 Times	most of the cars have the pipes running in the middle so that they can be accomodated under the hump in the chasis (for ground clearance), unless they have 4 wheel tranny.. and only the end piece will be routed to the sides
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11th August 2004, 00:24	#7
Psycho Senior - BHPian Join Date: Jul 2004 Location: Bangalore Posts: 1,043 Thanked: 110 Times View My Garage	Well here are the reasons: 1) As for the LHS and the RHS on Cars it is dependent as to where the fuel tank is located as the tailpipe would be on the other side of that for safety reasons so as not to heat up the fuel tank. 2) As for the bikes the angling of the exhaust upwards gives the exhaust pipe more length hence more area to muffle the sound. Hope that answers ur query
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11th August 2004, 21:13	#8
speedsatya Senior - BHPian Join Date: May 2004 Location: bangalore/manga Posts: 3,169 Thanked: 738 Times View My Garage	thanx everyone satya
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