Bigglezworth
January 14th, 2009, 00:13
I've had a problem with performance for the last short bit and attribute it directly to a pair of error codes I get for the secondary air system. As such I've picked up a nice pair of milled aluminum Diverter Valves that I planned on swapping out this weekend. While I have the air cleaner assembly off the top of the engine accessing the valves, I thought I would also put in a new N75 wastegate bypass regulator valve. Also going to rip off all the crappy rubber hoses that seem to crack and leak with some quality silicone hoses.
That said I phoned my local Audi stealer and confirmed they don't have one in stock. They can order it at a cost of $186.00 and I could see it in a week. This is for a 034-906-283-J valve. Im curious on what the stock replacement item is for the RS6 as the parts guy didn't seem to have any spec info for me. I did some minor reading on the net and on the APT site they show two different models of the valve. The 'H' and the 'J' spec. I know of other releases used on other Audi/VW engines such as C, D, E, K, etc. Anyone have an idea of what the 'stocker' valve costs from your local dealer? Is this a situation where I as a Canadian get raped - just because?? lol
Who has had personal experience with replacement of the N75 valve and which spec did you put in. Looking for feedback to best ascertain what works best with the 4.2 and more specifically the twin turbo 4.2 in the RS6.
Please pardon me if this has been discussed to death already on various forums. The discussions on RS6 that I could find merely cite owners changing them out either as preventative maintenance (my case while I have things apart), or in repsonse to things like thrust sensors or divertor valves not solving their problem. None of the posts talked about different performance specifics from the different models available nor personal experiences such as boost gains, ECU problems, limp mode, etc.
Tim
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The N75 valve is the link between boost and the wastegate, when the ecu sees the boost it wants it pulses the N75 and which opens and controls the wastegate.
Each N75 valve reacts a little differently. Commonly referred to as the race valve, the benefits of the "J" valve are higher boost spikes and holding boost longer throughout the rpm range.
Price: $98.95
The N75 valve is the link between boost and the wastegate, when the ecu sees the boost it wants it pulses the N75 and which opens and controls the wastegate.
Each N75 valve reacts a little differently. The most common benefits of the "H" valve are, smoothing boost response to help aid "surging" issues on modified cars and holds boost longer into the rpm range.
Price: $89.95
That said I phoned my local Audi stealer and confirmed they don't have one in stock. They can order it at a cost of $186.00 and I could see it in a week. This is for a 034-906-283-J valve. Im curious on what the stock replacement item is for the RS6 as the parts guy didn't seem to have any spec info for me. I did some minor reading on the net and on the APT site they show two different models of the valve. The 'H' and the 'J' spec. I know of other releases used on other Audi/VW engines such as C, D, E, K, etc. Anyone have an idea of what the 'stocker' valve costs from your local dealer? Is this a situation where I as a Canadian get raped - just because?? lol
Who has had personal experience with replacement of the N75 valve and which spec did you put in. Looking for feedback to best ascertain what works best with the 4.2 and more specifically the twin turbo 4.2 in the RS6.
Please pardon me if this has been discussed to death already on various forums. The discussions on RS6 that I could find merely cite owners changing them out either as preventative maintenance (my case while I have things apart), or in repsonse to things like thrust sensors or divertor valves not solving their problem. None of the posts talked about different performance specifics from the different models available nor personal experiences such as boost gains, ECU problems, limp mode, etc.
Tim
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The N75 valve is the link between boost and the wastegate, when the ecu sees the boost it wants it pulses the N75 and which opens and controls the wastegate.
Each N75 valve reacts a little differently. Commonly referred to as the race valve, the benefits of the "J" valve are higher boost spikes and holding boost longer throughout the rpm range.
Price: $98.95
The N75 valve is the link between boost and the wastegate, when the ecu sees the boost it wants it pulses the N75 and which opens and controls the wastegate.
Each N75 valve reacts a little differently. The most common benefits of the "H" valve are, smoothing boost response to help aid "surging" issues on modified cars and holds boost longer into the rpm range.
Price: $89.95