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egr blocking and finger sticking

J

jackh

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can anyone give me the best explanation they can as to what this is, what it does for you, what are the advantages/disadvantages of doing it, if it voids warranty and any extra stuff that i didnt think of?

thanks :pop2:
 
Finger stick sends the proper signal to the ECM that there is the the right amount of back pressure and the EGR is working as it should. The finger stick allows you to run a straight exhaust and block your EGR with out throwing a code. The reason for the blocker plate is to keep the soot out of the engine, also at high boost #'s it will bow the EGR valve open even if it is turned off by EFI live. As for nullifying your warrenty it will all depend on the individual dealer. they should never find it unless they have to really dig around for warrenty work. If I missed something some one else will chime in
 
so blocking keeps soot out of your engine, keeping it cleaner making it last longer?

will you lose low end from the lack of back pressure from blocking?

and if you block, you basically need to fingerstick it to keep from gettin the cel?
 
jackh said:
so blocking keeps soot out of your engine, keeping it cleaner making it last longer? Yep..

will you lose low end from the lack of back pressure from blocking? As I've heard no..

and if you block, you basically need to fingerstick it to keep from gettin the cel? Yep
Click to expand...

Good info redneckbuckeye...
 
Diesels dont use backpressure.

If anything the EGR is more of a restriction. Blocking it keeps soot out of the motor and also keeps it cooler because with a big tune the EGR cooler cant keep up.

I highly reccomend doing it.
 
Diesel engines do require some back pressure to work. But we don't have to worry about it as much since the turbo is creating the backpressure. If you Dyno your truck with the stock exhaust (cat and muff) then dyno with a straight pipe your low end torque will be slightly lower.

On the EGR blocker note if you get EFI live you will not need the finger stick.
 
dmaxfireman said:
Diesel engines do require some back pressure to work. But we don't have to worry about it as much since the turbo is creating the backpressure. If you Dyno your truck with the stock exhaust (cat and muff) then dyno with a straight pipe your low end torque will be slightly lower.

On the EGR blocker note if you get EFI live you will not need the finger stick.
Click to expand...

nuff said, thats what ive always heard
 
its not that the EGR is a restriction, but blocking it stops putting hot semi burnt gasses into the engine which inturn wold keep the intake chage cooler there fore making more power with cooler cleaner intake air.
 
dmaxfireman said:
Diesel engines do require some back pressure to work. But we don't have to worry about it as much since the turbo is creating the backpressure. If you Dyno your truck with the stock exhaust (cat and muff) then dyno with a straight pipe your low end torque will be slightly lower.

On the EGR blocker note if you get EFI live you will not need the finger stick.
Click to expand...
Quick question:
Thinking about getting the EFI Live, can you turn off the EGR with a program and then not need a block (with stock pressure)?
Thanks!
 
you can disable the egr function and disable the CEL light. but the valve itself can be forced open with boost pressure I believe over 26 psi
 
kennedy diesel

john can set you up, also ask about his boost stick that plugs in to the boost sensor, good for about 32 pounds of boost or so total
 
I really want to do this but I have been slack in gettin it done, but I have question that I have never had answered or seen answered over on the old DP even though it was asked several times, does this affect fuel mileage positively, negatively, or no change? I would havwe to expect that it would slightly lower fuel mileage, since all the EGR does is reintroduce spent gasses into the motor. This has to take up space in the cylinder that would otherwise be occupied by fuel/air if the EGR is blocked. I agree that blocking the EGR is a good thing to do even if it lowers mileage a small amount so please if anyone has a blocker plate and kept good records of their mileage before installation and after how about letting us all know what we can expect. Thanks
 
joverman said:
I really want to do this but I have been slack in gettin it done, but I have question that I have never had answered or seen answered over on the old DP even though it was asked several times, does this affect fuel mileage positively, negatively, or no change? I would havwe to expect that it would slightly lower fuel mileage, since all the EGR does is reintroduce spent gasses into the motor. This has to take up space in the cylinder that would otherwise be occupied by fuel/air if the EGR is blocked. I agree that blocking the EGR is a good thing to do even if it lowers mileage a small amount so please if anyone has a blocker plate and kept good records of their mileage before installation and after how about letting us all know what we can expect. Thanks
Click to expand...

From the best of my knowledge it doesn't effect mileage at all. Try PM'ing the member cowdoc on here. It did a few test on the DP with different tuners and the boost stick. I beleive he also used the Blocker Plate in his tests. :)
 
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