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22nd January 2013, 11:09 AM
#1
Expert
yes anothet egr block question!
I've done a bit of reading,and I'm getting differant answers,so here goes, For people that have blocked their egr valve on a 4.2 tdi (factory intercooled) are egt's and boost readings higher,lower or the same? Also do I only block the egr side or the exhaust side as well ?thanks in advance.
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22nd January 2013 11:09 AM
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22nd January 2013, 10:20 PM
#2
Expert
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22nd January 2013, 10:28 PM
#3
Patrol Freak
I blocked mine (99 2.8l gu) on noticed no rise in temps, actually ran slightly cooler on hills and very slight rise in boost (almost not noticeable).
When you think of it the air going into your combustion chamber is now cleaner with no recycled gas going back in.
All I did was block it just after the egr valve between the manifold where the gasket goes so that's all it looks like.
Live life, Love life.
Snatch straps on towballs can harm and/or kill!!!!!!
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22nd January 2013, 10:50 PM
#4
Expert
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23rd January 2013, 12:36 AM
#5
Patrol God
I noticed the coolant temp run cooler and fuel economy slightly improved on my 4.2. However I removed the lot of it, disconnected all the plugs removed butterfly from intercooler removed heat exchanger and rerouted crankcase breather to atmo.
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23rd January 2013, 10:11 PM
#6
Expert
thanks for the replies fellas.
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23rd January 2013, 10:18 PM
#7
Hardcore
Hey Tassie, just block it at the EGR where it meets the inlet manifold.
You will notice the turbo will spool up a bit quicker.
EGT and temps should remain the same.
Cheers, the ferret.
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23rd January 2013, 10:23 PM
#8
Expert
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25th January 2013, 03:43 PM
#9
Expert
My boost raised a little bit not worth worrying about tho and egt's also raised until I completed my nads, however urs is a 4.2 may b different. Block egr at inlet manifold
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25th January 2013, 11:38 PM
#10
Expert
can anyone tell me what the purpose of the heat exchanger is??(i think its what it is anyway,2" diameter cylinder just down from the egr valve)
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