Poor Man's Exhaust
05-19-2006, 04:27 PM
#12
2nd Gear Member
Join Date: Jan 2005
Location:
Posts: 482
RE: Poor Man's Exhaust
ORIGINAL: GT Premi
Why the heck did they cut off the video?? It looked like he was just about to peel out![>:]
Why the heck did they cut off the video?? It looked like he was just about to peel out![>:]
05-19-2006, 08:16 PM
#14
2nd Gear Member
Join Date: Jun 2005
Location:
Posts: 331
RE: Poor Man's Exhaust
Open Headers In Action
Vid is a little big, but has all the angles (in car, close, far, start up).
Definately bad ***!
Vid is a little big, but has all the angles (in car, close, far, start up).
Definately bad ***!
05-19-2006, 08:42 PM
#15
I ♥ Acer
Join Date: Jan 2006
Location: Orange County, California
Posts: 746
RE: Poor Man's Exhaust
ORIGINAL: 2GKT5
Open Headers In Action
Vid is a little big, but has all the angles (in car, close, far, start up).
Definately bad ***!
Open Headers In Action
Vid is a little big, but has all the angles (in car, close, far, start up).
Definately bad ***!
05-20-2006, 05:31 PM
#18
1st Gear Member
Join Date: May 2006
Location: NJ
Posts: 105
RE: Poor Man's Exhaust
A few reasons not to do it on a stock or only mildly modified engine:
1) you'll lose too much low end torque due to having almost no back pressure
2) you probably don't have enough high rpm HP in your motor, or the correct gearing, to compensate for #1
3) your exhaust system helps remove unburned gases and heat from the engine; cutting it too short will inhibit this heat extraction and could cause internal engine problems, specifically with the exhaust valves
4) it really won't sound all that great - even open exhaust race cars have tuned, equal length, and/or long tube headers, which help somewhat with the heat extraction and sound; you'll probably have your Mustang sounding like an old Chevy pick truck with a huge hole in the rusted out muffler....
If you did try this though, I'd be interested if you proved me right or wrong, because this is all educated theory; I've never actually tried it.
1) you'll lose too much low end torque due to having almost no back pressure
2) you probably don't have enough high rpm HP in your motor, or the correct gearing, to compensate for #1
3) your exhaust system helps remove unburned gases and heat from the engine; cutting it too short will inhibit this heat extraction and could cause internal engine problems, specifically with the exhaust valves
4) it really won't sound all that great - even open exhaust race cars have tuned, equal length, and/or long tube headers, which help somewhat with the heat extraction and sound; you'll probably have your Mustang sounding like an old Chevy pick truck with a huge hole in the rusted out muffler....
If you did try this though, I'd be interested if you proved me right or wrong, because this is all educated theory; I've never actually tried it.
05-20-2006, 06:11 PM
#20
RE: Poor Man's Exhaust
Not to mention that without almost any backpressure the heat that will be pulled through the valves while running. Stock valves will burn (in most cases anyway). You would need aftermarket hardened valves designed for those conditions.
Oh, yeah. I vote valve damage. Plus alot of nasty carbon buildup under your car, exhaust fumes in the cabin while sitting still and least least one or two good tickets.
Hoose84
Oh, yeah. I vote valve damage. Plus alot of nasty carbon buildup under your car, exhaust fumes in the cabin while sitting still and least least one or two good tickets.
Hoose84