How to know Turbo Exhaust or NA Exhaut??

[kk9972]

The best method to differentiate turbo and NA car (for me la), is to listen to their exhaust sound. I found that Turbo car normally wouldn't have very loud sound and the sound produced is not smooth. May be because of the turbine.

Another method is piping size. Lowered car can't see easily. Non-lowered car can see from rear and the piping vary from 2.5" to 3.5".

Other from exhaust "seeing" method, is to see from their front. there is intercooler there (mostly) hang and hide inside bumper. But for most L2, L5, intercooler is mounted on top of engine. If you see those Kancil or Mira is having a scoop on bornet, mostly (not 100%) they have turbo inside.

The last and the most effective method to check whether they are turbo car, race with them. If they have impressive torque, they are turbo-powered.

 

[zan]

I think the thread starter wants to know wether is there a specific exhaust for tuboo & a specific one for NA ....

yeah, truly agree with you. most replies here are misleading...

a turbocharged engine does not necessarily need an intercooler...for example Ford Laser Lynx RS Turbo. or the Volvo 240 GLT Turbo of the 1980s. NO INTERCOOLER!!

and see those stock standard exhaust pipe on OEM turbo cars like

BMW 330d (twin turbo), Vauxhall Astra VXR turbo, VW Golf GTI FSI Turbo, Mitsubishi Airtrek Turbo.....they are not using straight piping either.

of course, the extra features and modifications done would have done positive effects for the engine performance. but there are no specific exhaust pattern for either turbo or NA cars.

 

[putra4767]

piping

yeah, truly agree with you. most replies here are misleading...

a turbocharged engine does not necessarily need an intercooler...for example Ford Laser Lynx RS Turbo. or the Volvo 240 GLT Turbo of the 1980s. NO INTERCOOLER!!

and see those stock standard exhaust pipe on OEM turbo cars like

BMW 330d (twin turbo), Vauxhall Astra VXR turbo, VW Golf GTI FSI Turbo, Mitsubishi Airtrek Turbo.....they are not using straight piping either.

of course, the extra features and modifications done would have done positive effects for the engine performance. but there are no specific exhaust pattern for either turbo or NA cars.

I think - finally the answer is here...

 

[m@ttz]

bro.. if im not mistaken:

straight flow = manual cars .. both turbo & na

S-FLOW = auto cars .. both turbo & na

:shades_smile:

i learn dis also from the exhaust tokey...auto can't use straight one, will lose power...

 

[donCityZ]

first of all, the thread Q already answered by zan.

secondly, just wan to make clear about the s-flow for auto and straight flow for manual...

i dont agree with this. base on friends's experience,
it is not related to auto or manual. it is related to Power of Engine.

if u car is NA low cc (1.8 below for example), then best is s-flow regardless of auto or manual. my fren's car is manual, and he change to straight flow Hotbits, immediately can feel lost in low end torque. i test drive it too, and loss quite significantly in low end torque. so, what he does is compensate in restricting exhaust gas again by installing a bullet with taper piping inside it. then the low end torque resumes.

if your car is high cc and high power (low cc turbo even), then use straight flow.. but if possible maintain the original piping route since we do not want to totally eliminate back pressure. if ur car is 3.0 twin turbo, then by all means, make it as straight piping as possible and straight flow muffler.

my 1.92sen.