RedRobin Posted April 10, 2007 Report Share Posted April 10, 2007 Forge's new Diverter Valve to replace the OEM on the 2.0T FSI engine is nearly ready for sale. Expected in about 3 weeks. There have been quite a few cases of failure of the OEM and it's the weak link in the tuning chain. HTH Link to comment Share on other sites More sharing options...
mikemod Posted April 10, 2007 Report Share Posted April 10, 2007 Any idea of price Robin ? Link to comment Share on other sites More sharing options...
Scotty Posted April 10, 2007 Report Share Posted April 10, 2007 Are Audi still supplying dodgy ones? I know on the early 1.8T's this was the case but by the end they'd solved it. Is this for faulty ones or is it just quicker acting? Link to comment Share on other sites More sharing options...
mikemod Posted April 10, 2007 Report Share Posted April 10, 2007 I think they are only failing after remaps. However as far as I know the OEM one is already on version 'C' Link to comment Share on other sites More sharing options...
RedRobin Posted April 10, 2007 Author Report Share Posted April 10, 2007 At the moment (I spoke with them today) not even Forge know how much but I'm on the case and will report. It'll go up under Latest News on their web site: HERE The OEM DV isn't doomed to failure - Any failure appears to be random but more common on remapped cars. So, just a sensible precaution because running around with a damaged DV could in turn damage your turbo. They can't be pre-ordered yet. Forge have been testing them pretty thoroughly and obviously don't want to market it until they're happy with it. Link to comment Share on other sites More sharing options...
RedRobin Posted April 10, 2007 Author Report Share Posted April 10, 2007 Hi Scotty, I don't know about the Audi but it's for any car with the 2.0T FSI. Most reported failures have been on remapped cars but not all, please note. More cases reported across the pond I think but some in other forums too. IIRC it's the diaphram or thin rubber bit that tears under pressure - I've seen photos. Link to comment Share on other sites More sharing options...
Scotty Posted April 10, 2007 Report Share Posted April 10, 2007 What boost are remapped 2.0T's running? I ask as the S3 in Mexico is running 19psi and that seems quite high to me so I'd expect the DV to last. Link to comment Share on other sites More sharing options...
RedRobin Posted April 10, 2007 Author Report Share Posted April 10, 2007 I don't know what boost. I'm confident that Revo have got their map under control re boost. I'm thinking if fitting a boost pressure gauge just as a health monitor [Yes, I know that most peeps on TSN think they're 'chavvy']. Am I right in thinking that there'll be quite a lot of variation in boost readings among various cars? - That's how it seems as reported across the pond where they are much more into modding their GTI's. I can probably find out for you from my friendly tuner - If so, I'll post here. Link to comment Share on other sites More sharing options...
RedRobin Posted April 13, 2007 Author Report Share Posted April 13, 2007 Quote from Forge's guy over the pond: "Our valve solution is almost finished, and while being a more reliable component, we're seeing slightly improved performance as well. We have what amounts to essentially a production version, being tested on numerous cars right now. We've been data logging and testing every possible variable to ensure everything is perfect before we go to production. Our logs so far are showing a noticeable improvement in actual boost vs. requested boost as compared to a stock DV. Full boost also seems to be achieved sooner and is maintained longer and there is a smoother boost curve overall". Good news methinks Link to comment Share on other sites More sharing options...
Tarmac_Terrorist Posted April 13, 2007 Report Share Posted April 13, 2007 Sounds very encouraging Does anyone know if fitting one of these valves is classed as a performance mod in insurance terms? eg would you need to inform your insurers? Link to comment Share on other sites More sharing options...
Scotty Posted April 13, 2007 Report Share Posted April 13, 2007 Insurers don't ask to be informed about performance mods. They ask to be informed about all mods. Link to comment Share on other sites More sharing options...
RedRobin Posted April 13, 2007 Author Report Share Posted April 13, 2007 It's not classed as a performance mod, T_T. Link to comment Share on other sites More sharing options...
winrya Posted April 16, 2007 Report Share Posted April 16, 2007 saw this on ebay red http://cgi.ebay.co.uk/VW-GOLF-GTI-TURBO-...1QQcmdZViewItem Link to comment Share on other sites More sharing options...
petsy Posted April 16, 2007 Report Share Posted April 16, 2007 [ QUOTE ] saw this on ebay red http://cgi.ebay.co.uk/VW-GOLF-GTI-TURBO-...1QQcmdZViewItem [/ QUOTE ] that's not for the mk5 model though. according to forge it's for: All VAG 1.8T engines All VAG 2.7 Bi-Turbo engines Porsche 911/996 turbo Link to comment Share on other sites More sharing options...
RedRobin Posted April 17, 2007 Author Report Share Posted April 17, 2007 Another quote from Forge's guy across the pond: "In an effort of full disclosure, I'll let you all in on a little secret. We've already developed and tried replacing just the internals of the stock valve as a possible solution. In fact, we tried multiple ways of doing so, but none proved viable. Even if this person [referring to someone else] has managed to create a more reliable replacement diaphragm, which is the main point of failure of the stock valve, there are still issues with the operation of the stock valve that make it less than ideal altogether. Our solution, which is still in the final testing stages, has already provided some initial benefits like quicker spool, less tapering, and an overall raising of the boost curve, improving boost response throughout the RPM band. This means that the stock valve is not providing an effective seal under all boost and load conditions. You might argue that I'm touting the virtues of vaporware at this point, but I guarantee you'll be pleased with the final product once we release it". Sounds promising. It's got a priority 'must-have' on my list. Link to comment Share on other sites More sharing options...
winrya Posted April 17, 2007 Report Share Posted April 17, 2007 so maybe a good replacement on even a standard car Link to comment Share on other sites More sharing options...
techieboy Posted April 17, 2007 Report Share Posted April 17, 2007 Do all of these potential problems affect the 2.0TFSi in my A4? Am I likely to run head long into them when I get it remapped? If so, I'd better reserve one of these myself. Link to comment Share on other sites More sharing options...
RedRobin Posted April 17, 2007 Author Report Share Posted April 17, 2007 On a standard car, fewer reports of failures tend to indicate that it's less likely. Probably best to wait for it to fail - It might never fail - and replace it under warranty. On any remapped 2.0T FSI engine, the stock DV appears to be a weak link - I say this because of the quantity of failures reported. Failure isn't guaranteed but perhaps a Forge, when it becomes available, is a wise precaution - I'm definitely going to get one just for more peace of mind. One of the guys I was with on track yesterday just had his third stock DV C-revision fail on a Superchips 240 bhp (Stage1) Mk5 GTI. It's not as if a few laps of a track are that much more stressful than fast road use when the conditions allow - IMO. I think it may expose how some remaps might be pushing the boost levels too high, but I'm not an expert. I'm just networking information here. Link to comment Share on other sites More sharing options...
DandB Posted April 18, 2007 Report Share Posted April 18, 2007 I'm going to get my third c revision DV installed today! I think that i am going to get my boost level set slightly lower on my revo programming and wear lighter shoes until Forge release my saviour. Link to comment Share on other sites More sharing options...
RedRobin Posted April 18, 2007 Author Report Share Posted April 18, 2007 I know someone else who blew his third Revision C on a 240 bhp Superchips Mk5 GTI. Lots of people are waiting for Forge but they seem to be a company that gets it right before releasing it, so we'll have to be patient. Watch this space, cos I'm checking Forge every day! Link to comment Share on other sites More sharing options...
Rustynuts Posted April 18, 2007 Report Share Posted April 18, 2007 Anyone tried a diverter valve from an Audi S3 (260 odd bhp)? Link to comment Share on other sites More sharing options...
RedRobin Posted April 18, 2007 Author Report Share Posted April 18, 2007 [ QUOTE ] Anyone tried a diverter valve from an Audi S3 (260 odd bhp)? [/ QUOTE ] ....Now there's an idea . However, if the S3's DV construction etc is similar, I'd rather wait a little longer for the Forge DV. Link to comment Share on other sites More sharing options...
wyliss Posted April 18, 2007 Report Share Posted April 18, 2007 [ QUOTE ] Forge's new Diverter Valve to replace the OEM on the 2.0T FSI engine is nearly ready for sale. Expected in about 3 weeks. There have been quite a few cases of failure of the OEM and it's the weak link in the tuning chain. HTH [/ QUOTE ] I have this engine in my car.....could you explain what this thing is please? Thanks Link to comment Share on other sites More sharing options...
RedRobin Posted April 18, 2007 Author Report Share Posted April 18, 2007 Er....I'm not as knowledgable as some others here but I'll have a go! A diverter valve directs your boost flow in your turbo. It give your boost a place to escape when you are not accelerating or when you are shifting. The valve prevents boost build up and damage to your turbo but at the same time directing all the boost to the engine when it is closed! Stock valves are made with a rubber diaphragm and can fail. The piston is the weak point on stock DV's because boost levels (esp higher boost levels) can tear the thin rubber diaphragm. HTH Link to comment Share on other sites More sharing options...
RedRobin Posted April 19, 2007 Author Report Share Posted April 19, 2007 VW in USA has apparently officially announced a recall of sorts on their DV. They do not have any updated part newer than the "C" revision, however, should you have a failed "B" or "C" valve, they will replace it with another "C" valve free of charge. Surely that's just standard warranty Link to comment Share on other sites More sharing options...
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