The vacuum hose on the forward diverter valve is getting smushed by the foam above. The damaged vacuum hose is, I believe, giving me a P0491 code.

Does everyone else have a smushed vacuum line?
Is there any reason to replace the DVs, car is at 50k miles.

 

I think I answered my own question: non-stock DVs! They appear to be anodized aluminum with 1002 marked on the bottom. Any thoughts on what they are?

 

710n valves are the best option.

 

I ordered those up yesterday!

 

Mine rub in the same spot (Forge 007). Thats why I like the hard 90 degree connector that the forge DVs come with.

 

Curious who sells the 710n valves ?

 

just about anyone. they are as common as can be.

 

I found the best deal from Markski when I was buying 2 summers ago.

 

thanks i will give him a call

 

 

I believe the 710n are technically an Audi part. Mine have the Audi Rings cast into the plastic housings. Also they're not Bosch anymore, they're Kayser now and they are the ones to get.

Google "710n Audi". It's all under the VW umbrella anyway. Just make sure you buy 2 or a pair. It should cost you about $90+ for the pair. I guess what I'm saying is: if you see it for under $50, it's just one. We of course require two on our engines.

 

stebo...good point on to "Google "710n Audi" dv's. Back in the day around 2011 i purchased as "Bosch 710n". They have been on my car with "Forge" F-hose for
7 years. I dont know how long they will last or if we need to change them as part of maintenace ( i hardly use my car and only have 18k miles on the dv's 32on the car).
I'm not sure of quality "same part "Bosch 710n" being manufatured" by another company. So the op needs to research this. ...

Anyway if i remember the"small vac hose is on top". a pain to to. I droped the motor a few inches ... makes sence to do this. I know i did by another pair that were performance. I dont remember the name but they did not work correctly and the springs were a pain in the but. Like we are going to swap this stuff out every other day to make tunning adjustments... Some of the performance stuff out there is hype and just plain junk... so be careful.

Hence i installed for the second time "Bosch 710n" in 2011 and never looked back. They also hold the boost. Another topic. How much boost will you run ?
I'm running protomotive 1 bar tune on oem k16 turbos. So my setup is working fine for track only DE use.

If i were to change to another brand... i would need to begin research as parts & manufactures change. I have seen that "Forge dvs" have the hose on the side.
Hence good install option. I cant speak to how well they work or if they have springs that need to be adjusted. This needs to investigated. Also ask folks that run "like you plan to use the car" <= most important or you may become a parts tester and you may not want to take this on.. good luck.

 

if one was considering replacing dv's with aftermarkets, rather than having to periodically replace the bosch. you might consider the EVOMS. i've had the same pair without issue for at least 9 years that i know of.


lifetime warrantied also.
http://www.evoms.com/EVOMS_Porsche_D...dv90degblk.htm

 

I think the diaphram type respond more quickly as well. I got mine from ECS.

 

Back to your clearance issue. I had it too. Ended up buying the 5mm thick washers and adding them between my engine mounts and carrier. One on each side. Heres my current clearance and a pic of the washer w/part #...99902507401 pic uploaded grainy

And for the record: my stock diverters never failed, I just decided to do them preventatively.