Reply to thread

See what others are reading now! Try Forums > Current Activity

Message: <blockquote data-quote="TitanRev" data-source="post: 1235989" data-attributes="member: 10047">My TheoryWell, i have noticed the current Toyota vehicles has a special exhaust setup for most of their AT cars. Take example Camry 2.4What they do is the piping dia. after the header is large (eg.3.5") then the piping dia. after the CAT is smaller (eg. 3") and the piping dia. after the center bullet is even smaller(eg. 2") straight to the rear muffler.The theory that i get from what i see is that. They made the dia. after the header large is to allow the exhaust gas to exit the combustion chamber fast and the exhaust gas at this area is the hottest and the flow speed of the gas is the fastest. Then after the CAT the piping dia. become smaller and smaller this is because exhaust gas give up their heat to the cooler surrounding (the atmosphere) when exhaust gas losses their heat, they losses their flow speed so to ensure a minimun drop in heat and flow speed the engineers shrink the piping dia. section by section. This forces the exhaust gas to be compress on each other thus increases the exhaust heat temp and increases the flow speed. This also creates a slight vacuum inside the exhaust system that helps pull all exhaust gas out from the combustion chamber asap. The result they get is, a faster flowing of exhaust gas will give better and more powerful combustion as very less exhaust gas is left inside the combustion chamber. Well, this is my theory lah but don't know to what extent it is correct. Its a good discussion though.</blockquote>

Verification

The Marketplace Latest

BMW F30 msport Mperformance body kit
- Started by jeff6126
- Exterior and Body
Perodua Bezza gear up body kit
- Started by jeff6126
- Exterior and Body
Chrome delete
- Started by jeff6126
- Exterior and Body
Proton Preve spray paint(crystal black)
- Started by jeff6126
- Exterior and Body
Honda Civic FC FK7 SI Bodykit
- Started by jeff6126
- Exterior and Body
original rare Work Emotion 11R 18x7.5jj offset +47...
- Started by david tao
- Chassis and Wheels
original rare Yokohama ADVAN Racing GT 18x9.5jj...
- Started by david tao
- Chassis and Wheels
Honda Civic FD2R 2008
- Started by heanhean
- Cars for sale
Honda civic FD ~Feel front bumper set ~accident repair
- Started by jeff6126
- Exterior and Body
Perodua Axia Drive68 Bodykits
- Started by jeff6126
- Exterior and Body

Posts refresh every 5 minutes

Weider HSV-010 crowned season’s champs at Motegi in Super GT

While the Petronas Tom’s SC430 took the chequered flag at the Motegi GT 250km race, which was the final round of the Super GT...

ARC Super Induction Air Filter Box..Very Light & Tip-Top Condition

Pls Check The Link Below

http://www.zerotohundred.com/newfor...ter-box-very-light-and-tip-top-condition.html

TQTQ

cruise with da silvia/180sx club

i think, since this club is rare on its skyline meetups...maybe can join together with the silvia/180sx criuises...since they have lots of nice cars and are a bunch of crazy ass drivers...hehehe

my wife's baby...

Search

Enjoying Zerotohundred?

Log-in for an ad-less experience

Reply to thread

The Marketplace Latest

BMW F30 msport Mperformance body kit

Perodua Bezza gear up body kit

Chrome delete

Proton Preve spray paint(crystal black)

Honda Civic FC FK7 SI Bodykit

original rare Work Emotion 11R 18x7.5jj offset +47...

original rare Yokohama ADVAN Racing GT 18x9.5jj...

Honda Civic FD2R 2008

Honda civic FD ~Feel front bumper set ~accident repair

Perodua Axia Drive68 Bodykits

Posts refresh every 5 minutes

Recent Posts

Paging for Hyundai Coupe owner, CCGT @ 28th May 2005

New GR Yaris Automatic & GR Supra Track Edition Now in Malaysia

2025 Volvo EX90 Wins World Luxury Car Award

Been stalking for 3 years edy

Porsche Carrera Cup Asia Set for Debut at Mobility Resort Motegi

Search

Online now

Enjoying Zerotohundred?