BOV and intake question
Thread Starter
Junior Member
Joined: Jun 2006
Posts: 9
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From: Malaysia
BOV and intake question
Hie, i'd like to ask abt the funtions of the intake and BOV, what exactly does it do?
and also what type is good for a S5 FC?
and also what would be the diff of a brand new and second hand intake and BOV?
cheers XD
and also what type is good for a S5 FC?
and also what would be the diff of a brand new and second hand intake and BOV?
cheers XD
Boost in..Apex seals out.
Joined: Nov 2003
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From: Maryland, 21794
The intake is pulls in air, to feed your engine. The power an engine makes is from breathing in air, adding fuel, and then combusting the two.
A BOV is there to stop compressor surge on the turbo. Without this, the turbo normally will not last too long. (Although, some people don't run them at all..and don't have any problems. Go figure.)
An aftermarket blow-off valve will cause a rich spot on the stock ECU. This will cause a timely backfire or "pop" (sometimes fire) out of the exhaust everytime you shift. This doesn't really hurt anything, but yeah.
A BOV is there to stop compressor surge on the turbo. Without this, the turbo normally will not last too long. (Although, some people don't run them at all..and don't have any problems. Go figure.)
An aftermarket blow-off valve will cause a rich spot on the stock ECU. This will cause a timely backfire or "pop" (sometimes fire) out of the exhaust everytime you shift. This doesn't really hurt anything, but yeah.
Boost in..Apex seals out.
Joined: Nov 2003
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From: Maryland, 21794
Well yeah, but you don't get the neat "psh" sound when its rerouted. Whats the point of getting an aftermarket? Lol.
No, you don't have to get a new ECU. You just have to live with a slight backfire on shifts. It's not a bad thing :P
No, you don't have to get a new ECU. You just have to live with a slight backfire on shifts. It's not a bad thing :P
Thread Starter
Junior Member
Joined: Jun 2006
Posts: 9
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From: Malaysia
aha backfire is not a bad thing 
agreed
but if i also mod up my exhaust and intake to aftermarkets will my stock ECU unable to handle the boost and engine will blow?
agreedbut if i also mod up my exhaust and intake to aftermarkets will my stock ECU unable to handle the boost and engine will blow?
Last edited by beck_h7; Jun 10, 2006 at 03:31 AM.
Full Member
Joined: Apr 2005
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From: Melbourne. Australia
If you mod your intake and exhaust, you're turbo will start to overboost (referred to as wastegate creep, or spiking), which means you will need to get a FCD (Fuel cut defender, as the stock ecu cuts fuel to the rear rotor when boost over 8psi *i think* is detected for god knows what reason.) and also port your wastegate (or pay someone to do it, take a look in the fc3spro.com modifications section.)
Although, if you can afford it, definitely get a standalone ecu (microtech,wolf3d,motec,haltech etc) as it will often fix up many problems at once, allow for better tuneability (more power, and better economy.. if your tuner is competent), and be alot safer for your engine.
Bry
Although, if you can afford it, definitely get a standalone ecu (microtech,wolf3d,motec,haltech etc) as it will often fix up many problems at once, allow for better tuneability (more power, and better economy.. if your tuner is competent), and be alot safer for your engine.
Bry
