Quote:
Originally Posted by oil pan 4
Why not just buy an EGR cooler?
Image Search Results for EGR cooler
I see them all the time when digging around the stainless steel pile at the scrap yard.
On diesels EGR hurts milage under most conditions. So the EGR system gets tossed a lot of times. |
Ok, I have gm lx9 v6, 3.5 liter, gasoline, regular egr (not cooled). Decent amount of room near heater hoses to add a small egr cooler from perhaps a 1.9 VW tdi? I can use SS corrugated line from home depot to splice into current egr Pipe, and splice into heater hose for coolant.
Question is not can it be done. eBay has lots of these VW assemblies for 50 to 75$. I have seen Mazda owners on their forums use the small diameter Natural Gas lines as flexible egr pipes. so given the time and funds, I see it as doable.
So, with no ECM mods, does cooling EGR have mpg, emissions, or engine durability benefits? I know Ford EcoBoost and Mazda SkyActiv use cooled EGR in their systems. They would have the ECM programmed with cooled egr assumed, unlike my stock ECM.
So my question to other ecomodders is a one of benefits to adding a cooler to a car and ecm that was designed with a non cooled condition on the inert gas coming in and displacing the A/F mix? I have MAF and air temp sensor just after air filter, and MAP in intake manifold. So how does ECM know the combined charge air temp inside IM once egr is mixed in? Or does it not matter?
I know the general benefits of EGR for gasoline engines, after reading much. So I am glad I have the system. Just trying to see if it can be improved, ah, Wolfsburg style...
