MK5 Golf GTI
All Things Mk5 => Mk5 General Area => Topic started by: swgti on December 03, 2012, 07:56:35 am
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Apologies I know this is done to death on here but a lot of the info is very confusing so here goes, just a few questions I have before I go and get one as I want to be clear as to what type I want...........
1. Rev D is the older type and is a piston version?
2. Rev G is the latest used on the Mk6 and the likes and is a diaphram?
3. Other than personal preference they are both as good as each other and can cope with re-mapping?, oh and the Rev G makes a better noise? :happy2:
4. Are both types still available from VW or do you have to go elsewhere for the older D type?
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Yes on all accounts :happy2:
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It would seem it's a case of swings and roundabouts. JKM use the Rev D, so that was good enough for me in my decision making.
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1. The Rev D is newer than the G.
2. The Rev D is the one found on the Mk6.
3. Apparently the G holds boost better. Speak to your tuner because personal preference does play a role too it seems
4. They're both available from VW
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1. The Rev D is newer than the G.
2. The Rev D is the one found on the Mk6.
3. Apparently the G holds boost better. Speak to your tuner because personal preference does play a role too it seems
4. They're both available from VW
Now that is right :happy2:
The "D" is a plastic on plastic seal so wont hold boost as well as a totally sealed diaphragm (like the "G").
Both work fine, although i've tried both and have to say, the "G" feels a little more responsive at lower revs and makes a bit more of a "hiss" when I let off the throttle.
Nick @ R-Tech smoke tested a "D" and posted a picture showing it leaking, which sounds about right as plastic on plastic is never going to be an air tight seal, which is why I went back to the "G"
If a "D" does leak, it wont be as noticable as a rubber Diaphragm splitting as it will only be a small amount down the side of the piston, however it means your turbo will be working harder to sustain the boost your map is requesting.
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Thanks folks, looks like I'll opt for the Rev G when I get round to getting one. :driver:
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I would say rev d on K03 cos of heat from turbo making diaphram brittle and splitting, rev g on K04 cars...
JKM said mine was holding it's boost up to redline when it went stage 2+, and that has a G ;)
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1. The Rev D is newer than the G.
2. The Rev D is the one found on the Mk6.
3. Apparently the G holds boost better. Speak to your tuner because personal preference does play a role too it seems
4. They're both available from VW
Now that is right :happy2:
The "D" is a plastic on plastic seal so wont hold boost as well as a totally sealed diaphragm (like the "G").
Both work fine, although i've tried both and have to say, the "G" feels a little more responsive at lower revs and makes a bit more of a "hiss" when I let off the throttle.
Nick @ R-Tech smoke tested a "D" and posted a picture showing it leaking, which sounds about right as plastic on plastic is never going to be an air tight seal, which is why I went back to the "G"
If a "D" does leak, it wont be as noticable as a rubber Diaphragm splitting as it will only be a small amount down the side of the piston, however it means your turbo will be working harder to sustain the boost your map is requesting.
Plastic on metal... :happy2:
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Have been through countless number of these posts and I'm still confused!
So to confirm, on a k03 gti, it's better to have the g? I have a 2006 gti, so will I have the d?
Ahhh so confused :scared:
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ON a normal GTI you are better to have the plastic piston version as the DV is exposed to heat from the turbo.
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And the piston is the D yes?
This is the first time I've come across people mentioning the heat issues on a K03 up until now I was swayed towards the G simply because its supposed to boost better.
Anyone got the part No for the D. I've got the G No.
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part number I used was 06H 145 710 D but please check this first
Rob
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1. The Rev D is newer than the G.
2. The Rev D is the one found on the Mk6.
3. Apparently the G holds boost better. Speak to your tuner because personal preference does play a role too it seems
4. They're both available from VW
Now that is right :happy2:
The "D" is a plastic on plastic seal so wont hold boost as well as a totally sealed diaphragm (like the "G").
Both work fine, although i've tried both and have to say, the "G" feels a little more responsive at lower revs and makes a bit more of a "hiss" when I let off the throttle.
Nick @ R-Tech smoke tested a "D" and posted a picture showing it leaking, which sounds about right as plastic on plastic is never going to be an air tight seal, which is why I went back to the "G"
If a "D" does leak, it wont be as noticable as a rubber Diaphragm splitting as it will only be a small amount down the side of the piston, however it means your turbo will be working harder to sustain the boost your map is requesting.
Plastic on metal... :happy2:
Ah it's just as bad :grin:
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:happy2:
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I would say rev d on K03 cos of heat from turbo making diaphram brittle and splitting, rev g on K04 cars...
JKM said mine was holding it's boost up to redline when it went stage 2+, and that has a G ;)
This! :happy2:
G for what's its worth.