Blocking the EGR Valve

[the ferret]

Hi all, this is an awesome thread I am hoping will reduce the cloud of black smoke coming out of my GQ 2.8T.

I noticed the template diagram says something like final measurements and results may vary. Can someone please confirm if I make that template it will fit my GQ RD28TD?

Otherwise I might be begging you for a plate Ferret....

Cheers, Lachie

Plenty here Mate, made to fit and stainless.

[lachiek]

Thanks Ferret, I almost hit go on the purchase then decided to have a closer look at my EGR. Turns out it's already blocked! Obviously been there a long time as the shim is barely noticeable and covered in crap. Cleaned up it looks like good stainless so I reckon I'll stick with that.

Didn't mean to muck you around sorry mate.

[the ferret]

No sweat mate, long as you're all sorted. cheers.

[thin on top]

Ok guys I have my Pyrometer, how far after the turbo should this go.

cheers
Phil

[Chaz]

Ok guys I have my Pyrometer, how far after the turbo should this go.

cheers
Phil

As close to the turbine as possible will give you quicker readings, but up to 20cm should be ok.
Also, the tip of the pyro is the sensor, so just go in about 10 to 15mm for best results.

[thin on top]

cheers, thanks for that

[the evil twin]

Just got back from an 1100 K trip comprising 100 K city, 700 K towing the camper (50% of it quite hilly) 100 K's Country bitumen and 200 K's of tracks, dunes and beach (sof Beach at that as a lot of 2nd High used) drank 160 litres from local servo to local servo... so 14.8 LPH rough enough.

Absolutely stoked with those figures as it was cruising in lo 14's with the camper on tow. If anything I have tweaked the VNT a tad too far as it is noticeable on the beach that she is a poofteenth slow spooling up but good enough for me without a Dawes/Needle valve setup.

No hint of boost spikes or over boosting and she is pretty steady on 15 PSI Boost.

[BundyDave]

Have any of you guys that has blocked your egr checked your boost before and after (as mentioned in the Reference document). Can you just block it off without any adjustments.

[the evil twin]

Yeah, what Tony said... mine went apeshit... did almost exactly what was in the Bible... spooled up waaaaay to quick and boost spikes of up to 25 PSI till I wound the VNT back.

I wouldn't even contemplate doing it without a boost gauge. If you have a ton of guts I spose you could do the EGR block and just wind off 1 and 1/4 turns on the VNT screw but they are as touchy as hell.

[DrHarry]

Hi all my first post here...really enjoying all the quality info. I reckon I have a good handle on the EGR arguments now except for what to expect if you have a CRD. Some seem to say the ECU will sort out any excessive boost whilst others (including my local 4WD mechanic) say the effect on turbo boost is unpredictable.

Can anyone who has actually done the EGR mod on a CRD tell me their experience. I have a Scangauge so happy to clear any codes if that is the only hassle, and can keep an eye on my MAP/boost.

Thanks
Harry