Which one is the Real EGR VALVE for KA24DE??? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

CityHunt3R · 09-17-2007, 12:54 PM

or......

feels like Im in the Twightlight zone...

MyZTyKaL · 09-17-2007, 01:05 PM

the bottom one.

Ninjabread · 09-17-2007, 01:23 PM

Yep, bottom one is EGR which stands for exhaust gas recirculation (it puts exhaust in your intake) where as the other one is the AIV (air induction valve) and it puts fresh air into your exaust manifold to make it leaner so the cat heats up quicker.

GSXRJJordan · 09-17-2007, 01:24 PM

^^^ Troof posted above.

CityHunt3R · 09-17-2007, 03:48 PM

SO anyone here block thier EGR vavle? whats benifit to doing this and how will it hurt.. if anything the performance...?

Ninjabread · 09-17-2007, 03:53 PM

Unless you are having problems with it, don't touch it. I seriously don't think the gains are worth the trouble. I did take mine out, but thats because I had the motor out and wanted to clean up the engine bay so I removed both of those systems and made a block off plate for it.

For example, my only vacuum hose(other than brake booster) is one going to my fpr.

MyZTyKaL · 09-17-2007, 04:30 PM

yeah im pretty sure there's some info floating around on how to remove emissions equipment. and they sell some egr block off plates on ebay....but really....there's no point to removing any of it unless you want to clean up your motor a bit.

GSXRJJordan · 09-17-2007, 07:16 PM

Most SR guys ditch it when they lose their stock turbo elbow (the most restrictive part of the stock SRs exhaust)... on an NA KA, there's really no reason to mess with it.

projectRDM · 09-17-2007, 07:20 PM

Quote:

Originally Posted by GSXRJJordan

Most SR guys ditch it when they lose their stock turbo elbow (the most restrictive part of the stock SRs exhaust)... on an NA KA, there's really no reason to mess with it.

No, SR guys lose the AIV because it won't fit on a LHD car. JDM engines don't have EGR.

The biggest benefit to removing it is easier access to the top bellhousing bolts.

09-17-2007, 12:54 PM	#1
CityHunt3R Zilvia Member Join Date: Aug 2007 Location: Long Beach CA Posts: 233 Trader Rating: (7) Feedback Score: 7 reviews	Which one is the Real EGR VALVE for KA24DE??? or...... feels like Im in the Twightlight zone...

09-17-2007, 01:23 PM	#3
Ninjabread Post Whore! Join Date: Jul 2005 Location: Ottawa, Ontario Age: 36 Posts: 3,492 Trader Rating: (2) Rides Gallery: Ninjabread Feedback Score: 2 reviews	Yep, bottom one is EGR which stands for exhaust gas recirculation (it puts exhaust in your intake) where as the other one is the AIV (air induction valve) and it puts fresh air into your exaust manifold to make it leaner so the cat heats up quicker. __________________ 613DriftWerks.ca

09-17-2007, 01:24 PM	#4
GSXRJJordan Post Whore! Join Date: May 2006 Location: San Diego, CA Posts: 9,135 Trader Rating: (19) Rides Gallery: GSXRJJordan Feedback Score: 19 reviews	^^^ Troof posted above. __________________ Jordan Innovations has a new web site! www.JordanInnovations.com -- All your favorite FD Pro Drifters love it, trust me -- www.JordanInnovations.com

09-17-2007, 03:48 PM	#5
CityHunt3R Zilvia Member Join Date: Aug 2007 Location: Long Beach CA Posts: 233 Trader Rating: (7) Feedback Score: 7 reviews	well then TO CBLOCK OR NOT TO BLOCK? SO anyone here block thier EGR vavle? whats benifit to doing this and how will it hurt.. if anything the performance...?

09-17-2007, 03:53 PM	#6
Ninjabread Post Whore! Join Date: Jul 2005 Location: Ottawa, Ontario Age: 36 Posts: 3,492 Trader Rating: (2) Rides Gallery: Ninjabread Feedback Score: 2 reviews	Unless you are having problems with it, don't touch it. I seriously don't think the gains are worth the trouble. I did take mine out, but thats because I had the motor out and wanted to clean up the engine bay so I removed both of those systems and made a block off plate for it. For example, my only vacuum hose(other than brake booster) is one going to my fpr. __________________ 613DriftWerks.ca

09-17-2007, 01:05 PM	#2
MyZTyKaL Join Date: May 2007 Location: Prosser, WA Posts: 2 Trader Rating: (0) Feedback Score: 0 reviews	the bottom one.

09-17-2007, 04:30 PM	#7
MyZTyKaL Join Date: May 2007 Location: Prosser, WA Posts: 2 Trader Rating: (0) Feedback Score: 0 reviews	yeah im pretty sure there's some info floating around on how to remove emissions equipment. and they sell some egr block off plates on ebay....but really....there's no point to removing any of it unless you want to clean up your motor a bit.

09-17-2007, 07:16 PM	#8
GSXRJJordan Post Whore! Join Date: May 2006 Location: San Diego, CA Posts: 9,135 Trader Rating: (19) Rides Gallery: GSXRJJordan Feedback Score: 19 reviews	Most SR guys ditch it when they lose their stock turbo elbow (the most restrictive part of the stock SRs exhaust)... on an NA KA, there's really no reason to mess with it. __________________ Jordan Innovations has a new web site! www.JordanInnovations.com -- All your favorite FD Pro Drifters love it, trust me -- www.JordanInnovations.com