Dump valve

lmiller

Boost Junkie!
Aug 9, 2011
527
0
South East Kent
Just another quick Q... I have a LCR 225, Stage one with open cone air filter with heat shield surround. It came with an oil breather, do i need to fit it? If so how?
 

Allan_84

Active Member
Apr 11, 2010
851
3
Denmark
secondary air intake :) , it protects the cat in cold starts due to the ecu upping the fueling, which isnt good for the cat

its not to protect the cat.

SAI get more air or O2 (oxygen) in the exhaust on cold start up. its only for emission purposes.

more O2 (oxygen) in the exhaust will heat up the cat faster. cat do not work when/if cold!
more O2 (oxygen) in the exhaust and the cat can remove more CO (Carbon monoxide)

2parts CO and 1part O2 in the cat will be converted to 2parts CO2 (carbon dioxide), it adds one O to the CO.

CO + CO + O2 = CO2 + CO2
 

Allan_84

Active Member
Apr 11, 2010
851
3
Denmark
Just another quick Q... I have a LCR 225, Stage one with open cone air filter with heat shield surround. It came with an oil breather, do i need to fit it? If so how?

its not an oil breather, its for the SAI intake on the airbox.
 

Steely

semiskimmed cupra R
Dec 30, 2008
1,425
5
Doncaster
its not to protect the cat.

SAI get more air or O2 (oxygen) in the exhaust on cold start up. its only for emission purposes.

more O2 (oxygen) in the exhaust will heat up the cat faster. cat do not work when/if cold!
more O2 (oxygen) in the exhaust and the cat can remove more CO (Carbon monoxide)

2parts CO and 1part O2 in the cat will be converted to 2parts CO2 (carbon dioxide), it adds one O to the CO.

CO + CO + O2 = CO2 + CO2

UK Seat repesentative was wrong then! :shrug:

Learn something new everyday!
 
Last edited:

Russler

Active Member
Nov 27, 2011
310
0
Reading
I replaced my air box recently as previous owner had drilled it to bits...! Sounded cool for a while but then Got bored of the whooshing (thought it was broken for a while lol) anyway when fitting the new airbox I did not have a connection for the SAI? Am I missing something here? LCR 210 AMK engine.
 

Dannyh

The Black Pearl
Dec 30, 2011
372
0
Manchester
i dont have a SAI to the airbox, i literally unbolted the MAF and then put the airfilter on the Maf where is the SAI suppose to be,mine is a BAM btw
 
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