Standard GTI Lacking Power

[gazbutmk5gti]

Only 1 way to find out

[RedRobin]

Hiya, Deffinately get the car mapped with a proper map!! Bluefins are good but they do not give as much gains as just having it mapped by a tuner like myself (not trying to plug). And throw the plastic DV away and get a forge or baileys DV. Then u r SORTED

nothing wrong with the standard dv, espicially as vw moddified the diaprahm a while back.

....I don't agree. I personally know someone who has been through three different VW DV revisions and there have even been cases of failure in the latest front location. It's well known that the VW/VAG design doesn't allow for extra turbo boost. You might get lucky but upgrading to an aftermarket DV is definitely a proven preventative and it's good advice to recommend getting one on a remapped car.

[gazbutmk5gti]

Totally agree, changin the DV for an aftermarket 1 is a good idea on remapped cars, just out of interest, I'm on a standard 1 for nearly 9000miles with 300+bhp, and when I checked it last week it was fine , touch wood

[RedRobin]

....It's not guaranteed to fail, gaz, but changing it is just a sensible precaution. Another factor might be that the stock DV is better suited to the Ed30's K04 turbo - I don't know for sure.

[NewGolf]

What would you recommend I change the standard on to, and can I do it myself?

I dont want to sound like a ricer with all that "Woosh" "Woosh" nonsense going on!

[gazbutmk5gti]

....It's not guaranteed to fail, gaz, but changing it is just a sensible precaution. Another factor might be that the stock DV is better suited to the Ed30's K04 turbo - I don't know for sure.

I think its down to the location, on the regular GTi its bolted directly to the turbo so prone to gettin really hot, which suerly isn't good for a plastic component. Where as on the ED30 its remote from the turbo high up on the front of the engine behind the front grille which must be a much cooler place and maybe helping longevity

What would you recommend I change the standard on to, and can I do it myself?

I dont want to sound like a ricer with all that "Woosh" "Woosh" nonsense going on!

The forge item seems to be the 1 to go for, I had 1 on my regular GTi and it was fine, in fact joesgti is using it now. You can do it yourself if your handy with the spanners

[Komenda]

The Forge DV comes with pretty good fitting instructions. Bolting it on is the easy part, but you do have to pay attention when plumbing it in. Easily do-able yourself though.

[RedRobin]

....The Forge DV is very awkward to access when in the GTI position with the K03 turbo buried down at the rear end of the engine bay. You need a proper lift/ramp.

Also, NewGolf, the Forge DV does not make any whooshing noises. You would have to fit an extra Forge component if you wanted that.

This is the Forge DV - Well designed and made - Guaranteed and fit 'n forget :-



And this is how you need access except when fitted at front as on the Ed30 :-



And this just because I like hot chicks who love German cars! :-

[bacillus]

This is the Forge DV - Well designed and made - Guaranteed and fit 'n forget

Well not 100% true according to Forge.
"Unless you live in an especially dusty area I would say no more often than
yearly or around the 30k mark and that's just to be safe. If you like to
tinker then you might want to just check it's operation every other oil change
for a little bit unitl you get a feel for when it might show signs of being
contaminated. This varies not just because of the environment that you're in
but also because each car's pcv and air filters vary so much in condition
and effectiveness and this leads directly to entry into the vacuum hoses.

Just push up on the piston and block off the vac port, if the piston falls
more than about halfway or so or just gradually creeps down, then it needs
service. If it remains up and snaps shut after you release the vac port,
then all is well. If it requires service you generally just need to wipe it
out and replace the grease with some mobil one synthetic bearing grease or
equivalent. If the piston, body, or o-rings are damaged let us know and we
can get you replacements".

http://www.golfmkv.com/forums/showthread.php?s=df4dc49e616905bbf48cd45997b66e10&t=24106

[RedRobin]

....Oooops!! That's not what they told me! But I had one of the first ten.

Thanks for this info!!