Gas jet mod

glennm · Mar 14, 2014

Well at least I think that is what Paul called it. When I was in having the timing chain done a few weeks back Paul mentioned the mod. He said it is better than the egr blank and allowed the engine to breathe better. He did talk about some of the technical aspects but it was late on a friday and he was up to his elbows in another nav with the customer waiting. Does anyone else know about this as I have only seen the egr blank mentioned. I was concerned the dreaded black smoke would return but no it is all good.

sparra04 · Mar 14, 2014

gas injection isn't new
its been around for about 10 yrs now
I don't know much about it other than to say if it was any good they would all be using it, and maybe the bloke praising it is selling them
but I would be keen to hear more, why aren't we using it ?

paulschuit81 · Mar 14, 2014

He mentioned it to me aswell saying that the jet was wgat slowed the navs down a bit

4BYFOR · Mar 14, 2014

Just spoke to him about this and his getting back to me.. I already did the egr mod several years ago and only found out about this today.. I'm really curious on how it will improve performance

Lord_Muck · Mar 14, 2014

Are you talking about Diesel gas or something else entirely?

4BYFOR · Mar 14, 2014

I'm talking about this
http://www.yd25.com.au/index.php/products/egr-delete-pipe-kit
It's an extra to the egr block

glennm · Mar 14, 2014

Yes that is it. I only saw the removed item so had no idea what the installed bit looked like.
I assume that as the replacement not only blocks the egr it also removes the bit of extra pipe that protrudes into the airway thus improving air flow? Does both D22 & D40 which is a bonus.

sparra04 · Mar 14, 2014

Not needed on a d22
Cant comment on d40 or pathy
What does it do?
I think the d40 and pathy need a small amount of flow through egr system to avoid fault codes

RustyNav09 · Mar 14, 2014

Sparra.
Someone in this forum had both the egr blank plate and the egr delet kit from yd25 in his nav. He said the yd25 kit gave better response and you could really tell the difference unlike the blank plate.

I was looking into it but a few things come higher on the list

Soybean · Mar 17, 2014

Yeah I'm looking at doing this mod.
Sent yd25.com.au an email about it, inquiring about prices and such.
I'll keep you guys updated.

Soybean · Mar 17, 2014

Hey guys, the bloke from yd25.com.au got back to me.
The gas jet mod applies to our D22's aswell, infact he thinks the D22's get a bigger increase then the D40's.
Apparently it helps alot with the lag and low down torque.
The blank to my door was 43 bucks, so i'll whack it in sometime this week and let you guys know how i go.

sparra04 · Mar 17, 2014

I would be interested in hearing HOW it works
is he injecting lpg into the intake??

sounds a bit like the hiclone
or the polarizer

the only thing that a google search returns is this thread

Soybean · Mar 17, 2014

sparra04 said:
I would be interested in hearing HOW it works
is he injecting lpg into the intake??

sounds a bit like the hiclone
or the polarizer

the only thing that a google search returns is this thread

Look up yd25.com.au it's part of the EGR gas jet blanking kit.
It's basically a pipe that protrudes into the airstream in a 2.5's intake manifold, the air rushing past the pipe creates a vacuum which draws the EGR gases in, because most of us have blocked them anyway, all it does it create turbulence in the intake.
I figured it's a cheap mod and it's worth a go.
Old mate from the site said once i had it apart it would be obvious how restricted it is.
I'm not expecting a gigantic increase in power or torque but every little bit helps.

rabbit-chop · Mar 17, 2014

It makes your d22 do this

Soybean · Mar 17, 2014

rabbit-chop said:
It makes your d22 do this

Haha i wish!

tweak'e · Mar 17, 2014

from what i've seen in the pics
the gas jet mod (culd do with a better name) is simply to remove in the egr intake pipe. worth doing as anything that make turbulence in the airflow will reduce airflow.

but don't forget i doubt anyone has modded the intake butterfly system (eg the butterfly mod on the zd30) which makes an even bigger restriction to the airflow.

sparra04 · Mar 17, 2014

I have looked on the website and there is no explanation as to how the "jet" helps power or economy
hundreds of us on here have the d22 yd25 egr completely blanked off
others with the d40 need a small hole I believe to stop fault code
and considering the EGR valve is shut under heavy throttle I cant see how any jet will help
I am not saying don't do it or it wont work, please let us know how it goes
It just has me baffled as to how it would help anything other than someone elses bank acct
cheers

JPMC · Mar 17, 2014

sparra04 said:
the d40 need a small hole I believe to stop fault code

The 2.5's do not need a hole. My 2012 has now done 104,000km with the EGR blanked off and have not once seen a fault.

The 3.0 V6 on the other hand is the one I believe needs a small hole.

Soybean · Mar 17, 2014

Well i'll take some pictures when i do the install.
I'm happy to be the guinea pig lol.
We are taking the jet out, and putting a blank in, so the its better flowing.
I'll let you guys know how it goes.

glennm · Mar 17, 2014

It does become more obvious once you see both parts. Photos would be great soybean.

Gas jet mod

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