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Isn't the EGR turned off at full engine load anyway? I've never done anything with a Honda engine at work, but all the GM/Chrysler/Ford engines have zero EGR flow at anything above like 90% throttle.
yes, the EGR is off at both idle/WOT on these cars. the bypass paul has machined WILL allow for smoother (not higher) power delivery though midrange throttle %, but like you mentioned, it will be useless at WOT.
 
Discussion starter · #26 ·
I will make these avalible to whoever wants one, the cost will be $100 shipped which will include new correct legnth bolts and new EGR valve gaskets. The inlet will be 1/2" hose mipple so you can connect it with eaither a simple breather element or route a hose to the intake. I will pull together a step by step when I install one on Kai's car this Satruday. The hardest part of the install will be removing the existing studs, you have to take the two nuts and lock them against each other on the stud by tightening them against each other and then trun them out like bolts. Anyone interested please PM me.
 
Discussion starter · #30 ·
Nice work Paul. What do I need to do to get you one for me? I have two extra EGR valves....

Also, we need to discuss the J37 or whatever the current popular/good build is... I've got the itch...

Car runs amazing, by the way... constant 37 mpg now. Love it.
Great, I figured you would eng up just a little shy of J36/J35 MPGs, give me a call and we can discuss Stage 2...
 
Discussion starter · #31 ·
so with this, the exhaust gases still get recylced but never make it into the intake manifold, only fresh air does? If i am correct here with my intrepretation of this, where do the recylced gases now go? If i'm way off please tell me.

Also, i too was under the impression that no exhaust gasses get recylced during full throttle? is that true?
There are no more recycled exhaust gases, they are blocked from re-entering the engine, the cooling/leaning effect of EGR is maintained, this just uses clean/cool intake air rather than exhaust gases.

This also has another effect, I have had several builds/repairs come about due to front pre-cat failure (Stevo405 amoung others), pieces of the collapsed front pre-cat would be sucked back into the engine thru the EGR system and I am sure you can imagine what running hard pieces of ceramic material thru the engine will do......
 
There are no more recycled exhaust gases, they are blocked from re-entering the engine, the cooling/leaning effect of EGR is maintained, this just uses clean/cool intake air rather than exhaust gases.

This also has another effect, I have had several builds/repairs come about due to front pre-cat failure (Stevo405 amoung others), pieces of the collapsed front pre-cat would be sucked back into the engine thru the EGR system and I am sure you can imagine what running hard pieces of ceramic material thru the engine will do......
Ah i read this then re read your first post. I got it now. Another question though since I may be interested in buying one,

where does the EGR get blocked from with this system? At the exhaust pipe or right before it would normally enter the intake manifold, which it looks like. Wouldnt this cause the line that feeds the gasses back in to constantly be full with hot exhaust gas then?

please excuse my noob questions if they seem like it.
 
Discussion starter · #40 ·
so does this help performance?
^ Doesn't seem to help WOT hp, but you'd probably pick up some midrange 'punch' or smoothness.
Immediate change at WOT is not going to happen, what is really going on here is prevention of the exhaust carbon from being pulled back in, this will halp the engine internals stay cleaner, when the valve is open (at partial throtlle) it will allow the charge air to be cooler since 400F+ exhaust gases are not being mixed in with the charge air.
 
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