K04r Build

[Dpartinvr4]

What’s the status on the car? Out on the streets?

Currently ripped apart going multiport and direct injected the nostrum injectors just keep leaking I'm on my third set. They're buying them back for me and we'll see what happens from there. bought a house last October and s***'s been kind of hectic since

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[tommyf]

I don't have any pictures but I'll add that the RS4 fuel controller and Walbro 450 have been installed.

Did you have you adapt anything or could you just change the internal pumps?

[i3oricua]

You should be able to change the pump to a 450 with no problems. No adaption should be needed. It just gives headroom for future fuel needs.

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[tommyf]

You should be able to change the pump to a 450 with no problems. No adaption should be needed. It just gives headroom for future fuel needs.

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Thanks for the quick reply.
I haven't taken the pumpmodule out yet but I was under the impression that pump itself (grey tube) was fixed to the black plastic holder. But after reading your comment, I reckon jt will probably just slide out and walbro slides in.

[i3oricua]

Thanks for the quick reply.
I haven't taken the pumpmodule out yet but I was under the impression that pump itself (grey tube) was fixed to the black plastic holder. But after reading your comment, I reckon jt will probably just slide out and walbro slides in.

Oh no. It's not that easy at all. There is a kit that JHM makes (or used to) to allow an aftermarket LPFP option. You end up having to chop up the basket a little bit. They have a video too which I highly recommend watching before you even buy anything. As far as I know there is not just a true drop in option.

Actually, I never did it but there is another Audi pump that is an upgrade. I can't remember if it's the S3 or some other variant. Might the TTRS.

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[tommyf]

Oh no. It's not that easy at all. There is a kit that JHM makes (or used to) to allow an aftermarket LPFP option. You end up having to chop up the basket a little bit. They have a video too which I highly recommend watching before you even buy anything. As far as I know there is not just a true drop in option.

Actually, I never did it but there is another Audi pump that is an upgrade. I can't remember if it's the S3 or some other variant. Might the TTRS.

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Oh thats this one : https://jhmotorsports.com/jhm-fuel-p...b7-a4-rs4.html

Yes, I had found this one before but was looking if there were other options. This doesnt seem like the walbro 450 to be honest, but hell, what do I know haha.

Thanks again. This was on my list, but getting it shipped to the Netherlands, including import taxes might bring it close to 800 dollars.
Hence, why I was looking for another route.

The ttrs is also an option, but also not just plug and play. It has a different 5 pin connector and extra tubing. I also have fwd so thats also a bit different. I did see someone use only the pump itself to mount it in their a4 module, not sure how they did it though without breaking the plastic cover.

I think in the end I will have to go for the jhm one.

[i3oricua]

Oh thats this one : https://jhmotorsports.com/jhm-fuel-p...b7-a4-rs4.html

Yes, I had found this one before but was looking if there were other options. This doesnt seem like the walbro 450 to be honest, but hell, what do I know haha.

Thanks again. This was on my list, but getting it shipped to the Netherlands, including import taxes might bring it close to 800 dollars.
Hence, why I was looking for anothe route.

The ttrs is also an option, but also not just plug and play. It has a different connectors and extra tubing. I also have fwd so thats also a bit different. I did see someone use only the pump itself to mount it in their a4 module, not sure how though they did it without breaking the plastic cover.

I don't have it anymore but my B7 was also front wheel drive. You can see the build here so I did the pump change. I didn't use the pump JHM ships with. I got a 450 in addition.

This build thread we're chatting in is much more current though.

https://www.audizine.com/forum/showt...9#post14600539

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[tommyf]

I don't have it anymore but my B7 was also front wheel drive. You can see the build here so I did the pump change. I didn't use the pump JHM ships with. I got a 450 in addition.

This build thread we're chatting in is much more current though.

https://www.audizine.com/forum/showt...9#post14600539

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As I dont want to cloud the other thread, I would like to ask you an additional question here.

So I took the lpfp out and was able to take it apart without breaking the black plastic. I got the pump itself out as well.

I am thinking of just replacing the pump with a dw300. What i am wondering though is the following as some dw300 pumps have 2 outlets (like our original a4 b7 ones) and some only 1.

Did you in your current setup, connect the thinner tube (I believe it acts like a check valve but not sure) that is on one side connected to the T joint to something or just left it hanging like that?

[i3oricua]

1. I don't quite remember as it's been a long time. I took pictures which should be in that thread. I think there was only one nipple on the 450 pump itself that I used and all the stock lines may have remained where they were. Whatever the JHM video said to do is what I did. The aftermarket pump won't fit into he basket the way it is. You will have to chop it up to get the sock to fit properly.

2. Yup. It was a FWD, 2 WD car.

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[chili dog]

1. I don't quite remember as it's been a long time. I took pictures which should be in that thread. I think there was only one nipple on the 450 pump itself that I used and all the stock lines may have remained where they were. Whatever the JHM video said to do is what I did. The aftermarket pump won't fit into he basket the way it is. You will have to chop it up to get the sock to fit properly.

2. Yup. It was a FWD, 2 WD car.

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Here it is. I still have the pump from your part-out, finally messing with it to drop it in lol. Been a minute.



Pon


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[tommyf]

1. I don't quite remember as it's been a long time. I took pictures which should be in that thread. I think there was only one nipple on the 450 pump itself that I used and all the stock lines may have remained where they were. Whatever the JHM video said to do is what I did. The aftermarket pump won't fit into he basket the way it is. You will have to chop it up to get the sock to fit properly.

2. Yup. It was a FWD, 2 WD car.

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Thanks for the reply but I am actually inquiring about what happens after what jhm shows in the video. So I have included a picture of the lpfp and marked (what I think is a) already existing check valve. I wonder if the new set up the with the walbro is eventually also hooked up to this or not.

Here it is. I still have the pump from your part-out, finally messing with it to drop it in lol. Been a minute.



Pon


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Thanks Pon. I got this far, but there are pumps out there with 2 outlets. I am wondering if I could just use a pump like the dw300 (which I will get to fit in there eventually) with 2 outlets and leave the rest as it is without the additional tjoint and the added check valve.

The original check valve on the pump itself. Did you connect the thinner tube to connect it with this or just leave it hanging like that with the jhm setup. There is a picture of the small tube with the black fitting in the last picture of this post.
IMG_20241127_105354_(850_x_850_pixel).jpg

That tube connects to the smaller outlet
IMG_20241126_230310_(850_x_850_pixel).jpg

In the jhm video, they just leave this hanging like that.
Screenshot_20241126_182304_Brave.jpg


I dont see a reason why we couldnt just drop in another pump with 2 outlets in there, without having to use the jhm setup with the additional hoses and tjoint and checkvalve.


Also, because I really couldn't find the lph on our original pumps anywhere to compare it with mine, we decided to measure the flow by connecting it to 12v and filling up a bottle with water. It took about 9.5/ 10 seconds to fill 0,5 liters. Roughly speaking about 180lph on 100% duty cycle. I wonder if anyone can corroborate this so I can compare the state of the pump.

[chili dog]

The original check valve on the pump itself. Did you connect the thinner tube to connect it with this or just leave it hanging like that with the jhm setup. There is a picture of the small tube with the black fitting in the last picture of this post.

The black fitting goes to a fuel hose that’s inside the tank. You’ll see when you pull the original out. It goes back in the same way as OEM and doesn’t reroute in a different way.



As far as a pump with two outlets, that’s just how the original is configured like in the pic also. I don’t see why it wouldn’t work either. There’s no change in power supply.

Im guessing the JHM kit’s plumbing was designed around the larger volume pumps available at the time. I haven’t dug deep enough but I still haven’t seen a 450 with two outlets. Because if there was, then I think the upgrade kit would just be the bracket.

Pon


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[tommyf]

The black fitting goes to a fuel hose that’s inside the tank. You’ll see when you pull the original out. It goes back in the same way as OEM and doesn’t reroute in a different way.



As far as a pump with two outlets, that’s just how the original is configured like in the pic also. I don’t see why it wouldn’t work either. There’s no change in power supply.

Im guessing the JHM kit’s plumbing was designed around the larger volume pumps available at the time. I haven’t dug deep enough but I still haven’t seen a 450 with two outlets. Because if there was, then I think the upgrade kit would just be the bracket.

Pon


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Thanks for the reply once again.

The pictures I have sent you are from my own pump. I got it out a few days ago and the hose you're identifiying in your picture, is the same as the one I have encircled. I just took out the hose as well.

I was always under the impression that only the quattro version had those extra hoses.

Anyhow, thanks. I think I am going to try the dw300 and just drop it in the module as it is. I will have to make some small adjustment to the width of the module because the pump is about 5mm bigger in diameter than the original one. But that won't be a big problem I think. Once it's in, I will report back. It will take some time though probably because the engine is being rebuilt as well.

[tommyf]

Small update (sorry for rambling on on your thread about this)

After some back and forth with the company, I can confirm that the new pump has indeed 2 nozzles or outlets. This is a picture of the 65v with 265lph however, they have it also in the dw300 with 345 lph

467483312_588446820420625_3195646763369397323_n.jpg

The order is in, let's see if it all works out.