Diverter Valve Rev G or D?

[thegreatricardo]

I went with the piston type rev D, after the rev C diaphragm split I didn't want another part of similar design.

[adminkatana]

Does the DV ever get checked if the car is serviced by a dealer?

I've got a stock GTI that is 06, 68k miles. It's always been serviced by a VW dealer. I might get it mapped in the summer to Stage 1.

I'm not even sure which DV it currently has on there. It's the only GTI I've driven so not really sure if its 'down' on power etc. What would you recommend? Is it best to get it put on a Dyno to see what condition its in? Or going along to a good independent who can take the DV off and have a look? When I asked last time I was at the VW dealership I just got a blank stare.

Thanks for your help!

[Saintsteve]

Does the DV ever get checked if the car is serviced by a dealer?

I've got a stock GTI that is 06, 68k miles. It's always been serviced by a VW dealer. I might get it mapped in the summer to Stage 1.

I'm not even sure which DV it currently has on there. It's the only GTI I've driven so not really sure if its 'down' on power etc. What would you recommend? Is it best to get it put on a Dyno to see what condition its in? Or going along to a good independent who can take the DV off and have a look? When I asked last time I was at the VW dealership I just got a blank stare.

Thanks for your help!

If your planning on a remap and as far as you are aware this hasn't been looked at before, then I would be changing it. It's not part of VW's scheduled service plan to check the Diverter valve.

if its the ORIGONAL one, chances are at that age it will be split.

[adminkatana]

Great, Thank you.

How would you recommend to change it? I am pretty rubbish at these kind of things and would probably crush myself under the car.

I can either ask VW next time I am nearby, although I fear they will rip me off heavily for doing so, or find an Independent around here? Also, I know its quite tricky to change on a K03 GTI, but is there any way I can shove my iPhone in its approx location to take a photo to determine which version is already on there?

Thank again!

[Kinks]

Are there no uprated DV valves? Ie forge, APR or the likes?

Sent from my GT-N7105 using Tapatalk 2

[Saintsteve]

Are there no uprated DV valves? Ie forge, APR or the likes?

Sent from my GT-N7105 using Tapatalk 2

I would stick with the oem one.. dont waste your money on aftermarket stuff when it comes to these.

These are best accessed via the drivers side front wheel arch when wheel is removed.

2 axel stands on the front and on your back you go...just under the turbo from accessing underneath on the k03 cars

[adminkatana]

Thank you for all your help. I'll get a new 'G' DV fitted and see what happens.

[blackmagic]

I had changed to a rev d a while back and whilst it operates ok always felt it didn't have the same responsiveness. This was confirmed as one of my little jobs at weekend was to install a new rev g. Car now has much more pull and less lag/ hesitation. The d looked in good condition but must have been leaking some boost.

[R-tech-Nick]

G works and is air tight, The Ds work but bleed off boost from day one and get worse as they age.

I have tested 2 cars over the last week using uprated springs in the DVs, I have fitted spring which are 12.5% stiffer than the oem ones, the results so far are seeing much sharper crisper transition between gear changes.   Need to test a few more cars inc Ko4 and the 25% spring we have.

[rich83]

G works and is air tight, The Ds work but bleed off boost from day one and get worse as they age.

I have tested 2 cars over the last week using uprated springs in the DVs, I have fitted spring which are 12.5% stiffer than the oem ones, the results so far are seeing much sharper crisper transition between gear changes.   Need to test a few more cars inc Ko4 and the 25% spring we have.

Do you have one spare that you can post nik? I dont mind trying it out, providing its not gonna make my car go bang! 

[R-tech-Nick]

We want to do the testing in house.  So we know how each car reacts to each % version.   The on off development springs are costing about £25 each at the moment due to tooling costs so cannot go crazy until we start to get them mass produced once we have found the best combinations for each stage of tune.

[rich83]

Ohh ok no probs!

[GrayMK5GTI]

Ohh ok no probs!

Maybe you could go for a remap and do the test while your there 

[Tfsi_Mike]

Like the sound of that

[rich83]

Ohh ok no probs!

Maybe you could go for a remap and do the test while your there 

yeah sure... if its free!!!!!