Exhaust Back Pressure
Discussion
MB6 B18 VTI 1998
This is my 4th back box which i have done 2000miles & as the baffler inside has opened up it is slowing my performance down. when driving cold 1st 20mins its ok. when warmed up it dont want to move when throttled. i can hear the air gases are not fully being released which slowing me down. i know if i put another back box on the car it will be ok but not for long.
would anyone know whats the cause for this or do i need to upgrade to a better exhaust system ?
currently running a janspeed 4-1 branch outlet
straight through 2.5" d-cat pipe
japcan back box 4"
This is my 4th back box which i have done 2000miles & as the baffler inside has opened up it is slowing my performance down. when driving cold 1st 20mins its ok. when warmed up it dont want to move when throttled. i can hear the air gases are not fully being released which slowing me down. i know if i put another back box on the car it will be ok but not for long.
would anyone know whats the cause for this or do i need to upgrade to a better exhaust system ?
currently running a janspeed 4-1 branch outlet
straight through 2.5" d-cat pipe
japcan back box 4"
CB3 said:
well . . . 300bhpton'
Its in ENGLISH from the city not the countryside farm.
you either know the answer or you dont
well the first post is utter gibberish, so its very difficult to know if I or 300bhp/ton knows. You say your baffels are 'opening up' that would normally suggest more air flow not less..... Its in ENGLISH from the city not the countryside farm.
you either know the answer or you dont
Edited by GingerWizard on Wednesday 28th October 19:12
lol pardon me for not explaining correctly.
baffel opening up meaning 'more air' as gingerwizard says.
as this happens the 'more air' is not releasing through out the back box creating exhaust back pressure which is slowing the cars performance.
im assuming i need a better quality back box.
baffel opening up meaning 'more air' as gingerwizard says.
as this happens the 'more air' is not releasing through out the back box creating exhaust back pressure which is slowing the cars performance.
im assuming i need a better quality back box.
CB3 said:
lol pardon me for not explaining correctly.
baffel opening up meaning 'more air' as gingerwizard says.
as this happens the 'more air' is not releasing through out the back box creating exhaust back pressure which is slowing the cars performance.
im assuming i need a better quality back box.
To be honest... it seems you have answered your inconprehensible question your self. Have you read through slowly you post above ^ . Despite having some idea at what your barkin on about, it still makes NO SENSE. It sounds like you have a pretty bodged exhaust set up. Best take it to some one in the know and explain, or get it on a RR..... baffel opening up meaning 'more air' as gingerwizard says.
as this happens the 'more air' is not releasing through out the back box creating exhaust back pressure which is slowing the cars performance.
im assuming i need a better quality back box.
GingerWizard said:
CB3 said:
lol pardon me for not explaining correctly.
baffel opening up meaning 'more air' as gingerwizard says.
as this happens the 'more air' is not releasing through out the back box creating exhaust back pressure which is slowing the cars performance.
im assuming i need a better quality back box.
To be honest... it seems you have answered your inconprehensible question your self. Have you read through slowly you post above ^ . Despite having some idea at what your barkin on about, it still makes NO SENSE. It sounds like you have a pretty bodged exhaust set up. Best take it to some one in the know and explain, or get it on a RR..... baffel opening up meaning 'more air' as gingerwizard says.
as this happens the 'more air' is not releasing through out the back box creating exhaust back pressure which is slowing the cars performance.
im assuming i need a better quality back box.
After nearly a decade of pissing about with Honda engines, trying to extract everything i can out of them and understanding that there is a case for maintaining back pressure on an NA car - I still don't have a f
king clue what the OP is talking about.All I can offer is - the bottle neck of an exhaust system is not necessarily just the backbox.
AR said:
hondafanatic said:
there is a case for maintaining back pressure on an NA car
Don't confuse back pressure with scavenging gases. Backpressure is not goo NA or FI.It is possible to measure the amount of back pressure in various points in the system if the OP wants to establish some firm data rather than guessing.
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