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  1. VW JETTA OWNERS & ENTHUSIASTS INTRODUCTIONS
    Recently purchased a 2004 Jetta TDI! The owner before me had an EGR Delete done to it and a Malone stage 2 tune. How ever the car was slower than ever! (No Boost) Even slower than it had originally was. I tried countless thing like MAF sensor, Actuator was fine, no vacuum leaks etc... So I...
  2. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    so, I have a 1.8T stroked to a 2.0 that should be pushing 25 psi a WOT on a GT30 turbo w/630cc injectors and a stage 4 United motorsports tune. Recently I lost the bulk of the boost and am capped at 9-12 psi. I right before it lost pressure added in a manuel boost controller in front of inline...
  3. VW Jetta Build Board
    i have a 96 2.0 that i am building i am swapping to the MK IV intake manifold for ease of turbo install it currently does not run but i have the parts to get it running ordered after i get it running i have putting the turbo on getting a head spacer to lower compression yes i have green top...
  4. Jetta Troubleshooting
    I just picked up a 2004 gli im new to car world ive built countless diesel trucks and made big numbers from them but all this is new to me so don't lay in to hard if I sound slow with this. I have a few things im trying to figure out and hoping someone can help guide me in right direction...
  5. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    When I step on the gas and start to make boost it will make boost for a couple seconds starts to stutter and I let off the gas and back on it and doesn't have power. Anyone know what might be the cause of this?
  6. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    okay so my car is on unitronic stg 1+, was just about to go to stg 2 but now i ran into a problem. ive always noticed that when i would hit 20+ psi, boost would surge very rough, BUT it would only surge when you would engage boost when the rpms are low, i.e. if youre in 5th doing 55 or 60 and...
  7. 2011-present VW Jetta MKVI
    I'm new to the VW scene and im looking for turbo manifolds for a the 2.5 I5 So far Ive seen a cast C2 manifold and SPA cast manifold as well . Are there any other manifolds out there yet? Also Im on the hunt for a good down pipe I've seen the 42 draft designs as well but again I want to...
  8. VW Jetta MKIII 1991–1998
    Okay so I wanted HONEST opinions on my build ideas for my Mk3. This is my first 2.0 and I like it a lot so I decide to make it my every day driver (but built) please don't insult my 2.0 seems a lot of forums HATE THE 2.0L I love it so don't hate lol anyways, down to business. Okay so the car...
  9. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    Hey what's up guys? I own a 2004 vw jetta gls 1.8t and I was just wondering if you know how much boost I'm pushing stock? I also heard that an easy way to gain hp is by turning up my stock turbo boost just a little. That said, does anyone know how much I should actually turn it up by without...
  10. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    OKay. sorry to post this but i need some serious help. My car is messed up and i have no idea whats wrong with it. jetta 1.8t here's the deal. recently i've been driving and i like to accelerate cause i love the boost. a lot. but recently when i'm cruising and igo to accelerate to pass a car...
  11. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    Let me start off by telling you about my car mods that way we can rule things out APR chip ghl downpipe 2.5" boost gauge Sram intake. I recently got sick of having the cel on so I add the 42 draft design o2 spacer a week ago. Now for the symptoms. No CEL is on and no codes. Today I was...
  12. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    I have just purchased a 2001 1.8T Jetta with 190,000 km's, and later on realized that the lady i bought it from has never filled it up with premium gas or used synthetic oil. I was wondering if this could damage the turbo or anything else?
  13. POWERTRAIN MODS - ENGINE / TRANS / TURBO / EXHAUST
    Hello, i just bought an 03 wolfy, and i was wondering if i could set the boost to a higher psi, like turn it up or something until i upgrade to the greddy kit, i have to save for awhile for that one lol, LMK....:eek:
  14. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    I know that bov and diverter valves are practically the same but I wanna know what are the best brands. If anyone has one or a suggestion that wud be great.
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