Thread: People with No EGR's - Question for all of you

It will increase performance slightly. Whether it's noticeable is a different story.

High-temperature Loctite.

Also, IIRC that plug is the same size and thread as the plug for the air injection tube, and it's easy as pie to get a replacement machined from a blank.

Well I had it cranked in there pretty well, I guess the vibration and temperature changes finally got to it. As for finding a replacement, I tried more different thread sizes than you would believe.. in fact the guy at the exhaust shop was searching through barrels of old exhaust plugs and bolts and what not, and not even anything in there fit. I guess they make EGR plugs hard to find for a reason eh?

I think getting one made would have been more. The guy welded a plug of some sort in there for $20 or something, so it wasn't terrible.

What about the plug that comes with the EGR delete kit?

I didn't search online for one much but maybe?

Yeah, I said no performance gain because it is so negligible it is not worth saying it is something.lol. There is no SOTP feel to doing it. The only feel anyone will get is a smooth idle due to a cloggy solenoid.

Again, if you have an idle problem that bypassing the EGR has fixed, you have another problem you're hiding instead. The EGR does NOT function at idle or WOT unless there is a problem with the vehicle. If EGR is creating a misfire at idle there is more than likely a leak at the EGR valve allowing EGR by when it should be closed. Sometimes a good cleaning can rejuvenate the valve. Always, high quality maintenance will eliminate the problem without resorting to tweaking something that doesn't need to be.

As a side note, EGR gained a bad rep in the late 60's early 70's when first installed and systems were sometimes valve incorrectly as per drivability, and instead manufacturers preferred to err towards emissions. Surging, very noticeable part-throttle issues, and substantial pinging were all factors that were part of new and improperly tuned cars that set many peoples minds forever against it. A modern, well set-up and functioning EGR is virtually not a problem at all. If you are seeing a problem that EGR seems to be involved with it's probably another part of the system that is causing it, not just the fact that the system is plumbed into the combustion chamber. The young people driving and working on cars today have it easy compared to the mess of hoses and lack of information of 20-30 years ago on carb'ed vehicles.

"but what they didn't take into account properly was the efficiency degradation from carbon buildup in the throttle bodies."

Curious what you mean by that? The coking around the throttle butterfly? You do realize that isn't related to EGR, and is another subject, right?

It seems like this topic is really about not having to keep the car running right the way it was made, and instead see how many system we can delete in lieu of repair.
Just how many millions of miles does everyone think a car should run with no maintenance? A car of the 20-30's may have gotten 40K miles before is was left for waste. In the 70's getting 100K was THE benchmark. Now ANY of you with a SR20 should easily be able to DOUBLE that figure with decent maintenance.

This makes a lot of sense actually, analogous in some ways to removal of the cat. Since it apparently does not function at WOT, then it can only be a good thing in the end since it will reduce your emissions and not harm your overall performance. If my car had came with it on, I probably would not have removed it. The same goes for the cat converter.. it's really not worth removal on an stock block NA setup since you will (like EGR) gain almost nothing extra but produce a lot more emissions.

Although I do like how much cleaner the engine bay looks without it.

Exactly.