Block egr 11441?

[aaron11441]

Can you tell me how to block off egr on 11441. And what differences will i see if i block off the egr?

 

[Renze]

You can just put a metal plate between the flanges.

It should spool the turbo a slight bit better, but nothing spectacular.
We are still trying to find an upgrade for the turbo lag on the 11441, no one can confirm that the turbo off a 12441 will help , though its another part number. A user that has driven both a 114 and a 124 will have to confirm that there is any difference.

 

[forterra9641]

You can just put a metal plate between the flanges.

It should spool the turbo a slight bit better, but nothing spectacular.
We are still trying to find an upgrade for the turbo lag on the 11441, no one can confirm that the turbo off a 12441 will help , though its another part number. A user that has driven both a 114 and a 124 will have to confirm that there is any difference.

just take off the pipe leading from exhaust manifold to intake manifold at both ends an plug the holes. my 11441 didnt have a egr valve as i remember just a pipe between manifolds. unlike later models With egr valve and another type of piping.

 

[Renze]

my 11441 didnt have a egr valve as i remember just a pipe between manifolds.

Hmmm in that case blocking it should help quite more than WITH an EGR valve... Cummins engines had internal EGR on some models, by dropping the exhaust valve during the inlet stroke. This way, the engine didnt have enough oxygen in it to inject enough fuel to be able to spool the turbo up, which resulted in extreme lag, they dynoed the engine both pulling down, and pulling the revs up, and the torque curve just moved 300rpm further up in the rpm band during pull up.

A normal EGR valve would be shut at full fuel injection, and an electronic EGR valve would be shut at transient events, e.g. suddenly increasing the engine power, to give better response. If there is a constant EGR flow, the engine is constantly lacking oxygen so the fuel pump will be adjusted very meagre at non boost condition, so there just isnt enough exhaust gas energy to spool the turbo... yep and you need to spool the turbo to get the air in in the first place...

I didnt know the early EGR system was that crude, but it explains a lot of the problems with smoke and low power with the early 114's....

So yes, if its a continuously open passage, it should help a good deal to block it.

 

[aaron11441]

Will it give it more acceleration

 

[Renze]

Will it give it more acceleration

When the EGR valve tends to stick: yes. When there is no valve just an open passage: yes. When the EGR valve is opening and closing as required: a bit.