side exhaust?
5th Gear Member
Joined: Jan 2006
Posts: 2,645
From: So-Cal
RE: side exhaust?
ORIGINAL: cobra232
you want Zero backpressure in an exhaust.
backpressure does nothing but make the engine work to breath which takes HP to do.
why do people think backpressure is good is beyond me
ORIGINAL: Twister
duel exhaust on a stock V6 (3.8) will produce less hp and torque due to not enough backpreasure. Add the extra bends of a side exhaust kit, and you will reduce the flow....
duel exhaust on a stock V6 (3.8) will produce less hp and torque due to not enough backpreasure. Add the extra bends of a side exhaust kit, and you will reduce the flow....
backpressure does nothing but make the engine work to breath which takes HP to do.
why do people think backpressure is good is beyond me
Even Flowmaster says the same http://www.flowmastermufflers.com/backpressure.html
I ♥ Acer
Joined: Jul 2006
Posts: 1,618
From:
RE: side exhaust?
ORIGINAL: Twister
what are you smoking? you can loose power and torque from not enough backpreasure! I have seen dyno sheets that proves that you can loose torque and horsepower by running duels on a stock 3.8.
Even Flowmaster says the same http://www.flowmastermufflers.com/backpressure.html
ORIGINAL: cobra232
you want Zero backpressure in an exhaust.
backpressure does nothing but make the engine work to breath which takes HP to do.
why do people think backpressure is good is beyond me
ORIGINAL: Twister
duel exhaust on a stock V6 (3.8) will produce less hp and torque due to not enough backpreasure. Add the extra bends of a side exhaust kit, and you will reduce the flow....
duel exhaust on a stock V6 (3.8) will produce less hp and torque due to not enough backpreasure. Add the extra bends of a side exhaust kit, and you will reduce the flow....
backpressure does nothing but make the engine work to breath which takes HP to do.
why do people think backpressure is good is beyond me
Even Flowmaster says the same http://www.flowmastermufflers.com/backpressure.html
why do you think race cars don't have mufflers? are people really this retarded
[IMG]local://upfiles/42520/8D08EF4251DE44F69D952CD04DEA163D.jpg[/IMG]
[IMG]local://upfiles/42520/180590D0C0D9413CB5FD4F671F68B57D.jpg[/IMG]
[IMG]local://upfiles/42520/6F90034317274A05B746D1B747DDF41D.jpg[/IMG]
[IMG]local://upfiles/42520/64CB484BAD134013B49256C7A9C630BC.jpg[/IMG]
2nd Gear Member
Joined: Jul 2006
Posts: 293
From:
RE: side exhaust?
ORIGINAL: deezelnut
you mean slowmaster.
why do you think race cars don't have mufflers? are people really this retarded
[IMG]local://upfiles/42520/8D08EF4251DE44F69D952CD04DEA163D.jpg[/IMG]
[IMG]local://upfiles/42520/180590D0C0D9413CB5FD4F671F68B57D.jpg[/IMG]
[IMG]local://upfiles/42520/6F90034317274A05B746D1B747DDF41D.jpg[/IMG]
[IMG]local://upfiles/42520/64CB484BAD134013B49256C7A9C630BC.jpg[/IMG]
ORIGINAL: Twister
what are you smoking? you can loose power and torque from not enough backpreasure! I have seen dyno sheets that proves that you can loose torque and horsepower by running duels on a stock 3.8.
Even Flowmaster says the same http://www.flowmastermufflers.com/backpressure.html
ORIGINAL: cobra232
you want Zero backpressure in an exhaust.
backpressure does nothing but make the engine work to breath which takes HP to do.
why do people think backpressure is good is beyond me
ORIGINAL: Twister
duel exhaust on a stock V6 (3.8) will produce less hp and torque due to not enough backpreasure. Add the extra bends of a side exhaust kit, and you will reduce the flow....
duel exhaust on a stock V6 (3.8) will produce less hp and torque due to not enough backpreasure. Add the extra bends of a side exhaust kit, and you will reduce the flow....
backpressure does nothing but make the engine work to breath which takes HP to do.
why do people think backpressure is good is beyond me
Even Flowmaster says the same http://www.flowmastermufflers.com/backpressure.html
why do you think race cars don't have mufflers? are people really this retarded
[IMG]local://upfiles/42520/8D08EF4251DE44F69D952CD04DEA163D.jpg[/IMG]
[IMG]local://upfiles/42520/180590D0C0D9413CB5FD4F671F68B57D.jpg[/IMG]
[IMG]local://upfiles/42520/6F90034317274A05B746D1B747DDF41D.jpg[/IMG]
[IMG]local://upfiles/42520/64CB484BAD134013B49256C7A9C630BC.jpg[/IMG]
5th Gear Member
Joined: Jan 2006
Posts: 2,645
From: So-Cal
RE: side exhaust?
ORIGINAL: deezelnut
you mean slowmaster.
why do you think race cars don't have mufflers? are people really this retarded
[IMG]local://upfiles/42520/8D08EF4251DE44F69D952CD04DEA163D.jpg[/IMG]
[IMG]local://upfiles/42520/180590D0C0D9413CB5FD4F671F68B57D.jpg[/IMG]
[IMG]local://upfiles/42520/6F90034317274A05B746D1B747DDF41D.jpg[/IMG]
[IMG]local://upfiles/42520/64CB484BAD134013B49256C7A9C630BC.jpg[/IMG]
ORIGINAL: Twister
what are you smoking? you can loose power and torque from not enough backpreasure! I have seen dyno sheets that proves that you can loose torque and horsepower by running duels on a stock 3.8.
Even Flowmaster says the same http://www.flowmastermufflers.com/backpressure.html
ORIGINAL: cobra232
you want Zero backpressure in an exhaust.
backpressure does nothing but make the engine work to breath which takes HP to do.
why do people think backpressure is good is beyond me
ORIGINAL: Twister
duel exhaust on a stock V6 (3.8) will produce less hp and torque due to not enough backpreasure. Add the extra bends of a side exhaust kit, and you will reduce the flow....
duel exhaust on a stock V6 (3.8) will produce less hp and torque due to not enough backpreasure. Add the extra bends of a side exhaust kit, and you will reduce the flow....
backpressure does nothing but make the engine work to breath which takes HP to do.
why do people think backpressure is good is beyond me
Even Flowmaster says the same http://www.flowmastermufflers.com/backpressure.html
why do you think race cars don't have mufflers? are people really this retarded
[IMG]local://upfiles/42520/8D08EF4251DE44F69D952CD04DEA163D.jpg[/IMG]
[IMG]local://upfiles/42520/180590D0C0D9413CB5FD4F671F68B57D.jpg[/IMG]
[IMG]local://upfiles/42520/6F90034317274A05B746D1B747DDF41D.jpg[/IMG]
[IMG]local://upfiles/42520/64CB484BAD134013B49256C7A9C630BC.jpg[/IMG]
6th Gear Member
Joined: Mar 2006
Posts: 5,373
From: Wichita, Ks
RE: side exhaust?
you can screw ur power up w/o enough backpressure for certain engines. the race cars are puttin out a ton of power and they are pushing out a LOT of exhaust. i did know exactly why all this is a while back but i forgot why its bad. but i know that you do need a certain amount of back pressure.
and here is a side exit exhaust from steeda at mustangtuning
and here is a side exit exhaust from steeda at mustangtuning
I ♥ Acer
Joined: Jul 2006
Posts: 1,618
From:
RE: side exhaust?
ORIGINAL: Twister
dood, how many cars have you built? you are talking out of your *** and you don't even realize it. Bigger is not always better, ask any guy that runs a carb about that. Thinking that backpreasure is not an important thing is a ricer thought.
ORIGINAL: deezelnut
you mean slowmaster.
why do you think race cars don't have mufflers? are people really this retarded
[IMG]local://upfiles/42520/8D08EF4251DE44F69D952CD04DEA163D.jpg[/IMG]
[IMG]local://upfiles/42520/180590D0C0D9413CB5FD4F671F68B57D.jpg[/IMG]
[IMG]local://upfiles/42520/6F90034317274A05B746D1B747DDF41D.jpg[/IMG]
[IMG]local://upfiles/42520/64CB484BAD134013B49256C7A9C630BC.jpg[/IMG]
ORIGINAL: Twister
what are you smoking? you can loose power and torque from not enough backpreasure! I have seen dyno sheets that proves that you can loose torque and horsepower by running duels on a stock 3.8.
Even Flowmaster says the same http://www.flowmastermufflers.com/backpressure.html
ORIGINAL: cobra232
you want Zero backpressure in an exhaust.
backpressure does nothing but make the engine work to breath which takes HP to do.
why do people think backpressure is good is beyond me
ORIGINAL: Twister
duel exhaust on a stock V6 (3.8) will produce less hp and torque due to not enough backpreasure. Add the extra bends of a side exhaust kit, and you will reduce the flow....
duel exhaust on a stock V6 (3.8) will produce less hp and torque due to not enough backpreasure. Add the extra bends of a side exhaust kit, and you will reduce the flow....
backpressure does nothing but make the engine work to breath which takes HP to do.
why do people think backpressure is good is beyond me
Even Flowmaster says the same http://www.flowmastermufflers.com/backpressure.html
why do you think race cars don't have mufflers? are people really this retarded
[IMG]local://upfiles/42520/8D08EF4251DE44F69D952CD04DEA163D.jpg[/IMG]
[IMG]local://upfiles/42520/180590D0C0D9413CB5FD4F671F68B57D.jpg[/IMG]
[IMG]local://upfiles/42520/6F90034317274A05B746D1B747DDF41D.jpg[/IMG]
[IMG]local://upfiles/42520/64CB484BAD134013B49256C7A9C630BC.jpg[/IMG]
let's see, 1970 Cougar Eliminator. 351C 13.5:1 compression. 4" exhaust, carbed. can't remember exact numbers, it was like 500+ rwhp. 1980 Rabbit truck. 22.2:1 compression, 42 lbs of boost. 4' exhaust. 1973 charger. 426 hemi. 4' exhaust. 625 something rwhp. but since those probably don't count. here's this
1976 TA. 515 CI SD bored .030 over, dual holley 750 dumpers and twin turbos. 1300 rwhp. i helped on that one. 5' exhaust. none of these cars had mufflers. so i will say it again.
[IMG]local://upfiles/42520/6CFF89B1A9D84C21A617F822889BDB80.jpg[/IMG]
5th Gear Member
Joined: Jan 2006
Posts: 2,645
From: So-Cal
RE: side exhaust?
ORIGINAL: deezelnut
it's on now
let's see, 1970 Cougar Eliminator. 351C 13.5:1 compression. 4" exhaust, carbed. can't remember exact numbers, it was like 500+ rwhp. 1980 Rabbit truck. 22.2:1 compression, 42 lbs of boost. 4' exhaust. 1973 charger. 426 hemi. 4' exhaust. 625 something rwhp. but since those probably don't count. here's this
1976 TA. 515 CI SD bored .030 over, dual holley 750 dumpers and twin turbos. 1300 rwhp. i helped on that one. 5' exhaust. none of these cars had mufflers. so i will say it again.
it's on now
let's see, 1970 Cougar Eliminator. 351C 13.5:1 compression. 4" exhaust, carbed. can't remember exact numbers, it was like 500+ rwhp. 1980 Rabbit truck. 22.2:1 compression, 42 lbs of boost. 4' exhaust. 1973 charger. 426 hemi. 4' exhaust. 625 something rwhp. but since those probably don't count. here's this
1976 TA. 515 CI SD bored .030 over, dual holley 750 dumpers and twin turbos. 1300 rwhp. i helped on that one. 5' exhaust. none of these cars had mufflers. so i will say it again.
http://www.pypesexhaust.com/faq.html
Q: Should I base my muffler choice on the highest flow rating?
A: Not always. In dyno tests higher horsepower cars (400+) almost always benefit from maximum flow. Lower horsepower cars (300-) can actually lose some low end torque and peak horsepower by using maximum flow mufflers.
A: Not always. In dyno tests higher horsepower cars (400+) almost always benefit from maximum flow. Lower horsepower cars (300-) can actually lose some low end torque and peak horsepower by using maximum flow mufflers.
Q: It seems as though 3" exhaust is the popular choice these days. Is there any disadvantages?
A: Yes! A stock horsepower car with 3" exhaust can lose noticeable low end torque and affect performance. Also, 3" pipe usually requires increased installation precision because of limited clearance issues. As a general rule, cars with less then 450hp should use 2.5" exhaust. Cars in the 450hp range could potentially benefit by a 3" crossover and still keeping 2.5" tails. Cars with 500hp + should utilize 3" or even larger tube size
A: Yes! A stock horsepower car with 3" exhaust can lose noticeable low end torque and affect performance. Also, 3" pipe usually requires increased installation precision because of limited clearance issues. As a general rule, cars with less then 450hp should use 2.5" exhaust. Cars in the 450hp range could potentially benefit by a 3" crossover and still keeping 2.5" tails. Cars with 500hp + should utilize 3" or even larger tube size
4th Gear Member
Joined: Feb 2006
Posts: 1,447
From:
RE: side exhaust?
dude twisters right man. You will loose low end torque but also gain some in the highend, if you do not have enough backpressure you will loose horsepower thats why it is recommened to go with 2.5 unless your going f/i or having some heavy internal work done.
2nd Gear Member
Joined: Jul 2006
Posts: 293
From:
RE: side exhaust?
it's on now
let's see, 1970 Cougar Eliminator. 351C 13.5:1 compression. 4" exhaust, carbed. can't remember exact numbers, it was like 500+ rwhp. 1980 Rabbit truck. 22.2:1 compression, 42 lbs of boost. 4' exhaust. 1973 charger. 426 hemi. 4' exhaust. 625 something rwhp. but since those probably don't count. here's this
1976 TA. 515 CI SD bored .030 over, dual holley 750 dumpers and twin turbos. 1300 rwhp. i helped on that one. 5' exhaust. none of these cars had mufflers. so i will say it again.
let's see, 1970 Cougar Eliminator. 351C 13.5:1 compression. 4" exhaust, carbed. can't remember exact numbers, it was like 500+ rwhp. 1980 Rabbit truck. 22.2:1 compression, 42 lbs of boost. 4' exhaust. 1973 charger. 426 hemi. 4' exhaust. 625 something rwhp. but since those probably don't count. here's this
1976 TA. 515 CI SD bored .030 over, dual holley 750 dumpers and twin turbos. 1300 rwhp. i helped on that one. 5' exhaust. none of these cars had mufflers. so i will say it again.
I ♥ Acer
Joined: Jul 2006
Posts: 1,618
From:
RE: side exhaust?
ORIGINAL: Twister
there is a HUGE difference between a Hemi or a twin turbo 515 and a stock or near stock 3.8. You are talking about cars that never run below 5000 rpm, I am talking about street cars. The fastest way to make yourself look like an idiot is to open your mouth and attack someone when you really do not know what you are talking about.
http://www.pypesexhaust.com/faq.html
ORIGINAL: deezelnut
it's on now
let's see, 1970 Cougar Eliminator. 351C 13.5:1 compression. 4" exhaust, carbed. can't remember exact numbers, it was like 500+ rwhp. 1980 Rabbit truck. 22.2:1 compression, 42 lbs of boost. 4' exhaust. 1973 charger. 426 hemi. 4' exhaust. 625 something rwhp. but since those probably don't count. here's this
1976 TA. 515 CI SD bored .030 over, dual holley 750 dumpers and twin turbos. 1300 rwhp. i helped on that one. 5' exhaust. none of these cars had mufflers. so i will say it again.
it's on now
let's see, 1970 Cougar Eliminator. 351C 13.5:1 compression. 4" exhaust, carbed. can't remember exact numbers, it was like 500+ rwhp. 1980 Rabbit truck. 22.2:1 compression, 42 lbs of boost. 4' exhaust. 1973 charger. 426 hemi. 4' exhaust. 625 something rwhp. but since those probably don't count. here's this
1976 TA. 515 CI SD bored .030 over, dual holley 750 dumpers and twin turbos. 1300 rwhp. i helped on that one. 5' exhaust. none of these cars had mufflers. so i will say it again.
http://www.pypesexhaust.com/faq.html
Q: Should I base my muffler choice on the highest flow rating?
A: Not always. In dyno tests higher horsepower cars (400+) almost always benefit from maximum flow. Lower horsepower cars (300-) can actually lose some low end torque and peak horsepower by using maximum flow mufflers.
A: Not always. In dyno tests higher horsepower cars (400+) almost always benefit from maximum flow. Lower horsepower cars (300-) can actually lose some low end torque and peak horsepower by using maximum flow mufflers.
Q: It seems as though 3" exhaust is the popular choice these days. Is there any disadvantages?
A: Yes! A stock horsepower car with 3" exhaust can lose noticeable low end torque and affect performance. Also, 3" pipe usually requires increased installation precision because of limited clearance issues. As a general rule, cars with less then 450hp should use 2.5" exhaust. Cars in the 450hp range could potentially benefit by a 3" crossover and still keeping 2.5" tails. Cars with 500hp + should utilize 3" or even larger tube size
A: Yes! A stock horsepower car with 3" exhaust can lose noticeable low end torque and affect performance. Also, 3" pipe usually requires increased installation precision because of limited clearance issues. As a general rule, cars with less then 450hp should use 2.5" exhaust. Cars in the 450hp range could potentially benefit by a 3" crossover and still keeping 2.5" tails. Cars with 500hp + should utilize 3" or even larger tube size