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    1. Junior Member
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      12-21-2010 12:24 AM #1
      yeah guys im just wondering why 1.8t engines are not that powerful like srt4 or wrx, for example if you put a bigger intercooler on an srt4 it gets a lot of power, different from us that you have to chipped your car and even go big turbo to reach 300 hp

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    3. Member viperius's Avatar
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      12-21-2010 12:44 AM #2
      I would say the engineers under tuned the engine to make them last longer.
      Please Read Your Owners Manual.
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      12-21-2010 12:54 AM #3
      The 1.8t is not a performance oriented engine. It's whats called a light pressure turbo engine in which is designed to be reliable and have gas economy while at the same time be torquey for daily driving. In short words its the small turbo compared to the bigger turbos in evo's, srt's etc... which doesnt give you the "big" gains you're talking about.

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    6. Member TheBossQ's Avatar
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      12-21-2010 02:56 AM #4
      Logically, they are much larger engines. The Dodge is a 2.4. The Subaru is a 2.5. These engines are >30% larger displacement.

      And that's just where it starts.

    7. Member
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      12-21-2010 08:42 AM #5
      Quote Originally Posted by TheBossQ View Post
      Logically, they are much larger engines. The Dodge is a 2.4. The Subaru is a 2.5. These engines are >30% larger displacement.

      And that's just where it starts.
      What he said. I'd say if your looking for power, less displacement then a 2liter of coke, not the best place to start? Although WRX and SRT4 don't get the gains we do from ECU reprogramming, since they already run pretty high boost.

    8. Member mbaron's Avatar
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      12-21-2010 08:48 AM #6
      The WRXs that have a 2.0 liter motor still get a lot more power than the 1.8.
      Last edited by mbaron; 12-21-2010 at 08:50 AM.

    9. Member Big_Tom's Avatar
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      12-21-2010 08:49 AM #7
      VW Wanted Us To Actually Hafta Build Our Cars To Be Fast.
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    10. Member Blackfin's Avatar
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      12-21-2010 09:32 AM #8
      bigdreams' got it.

      WRXs and SRT4 engines were designed with higher peak output from the get-go.

      VW engineers wanted a fuel-efficient, torquey and responsive engine for a family of grocery getting Golfs and Jettas. The "uberGolf" -- the R32 -- that was supposed to be more in line with the WRX style of cars did get decent power and AWD. But the 1.8T was a cross-platform workhorse. (The 2.0T is the same thing: 200HP is sort of low nowadays...)

      VAG did make higher-performance versions. The TT225 comes to mind and it does so with a bigger turbo and another intercooler core. There's a 2.0T making ~265HP in the new TT.

      So the garden-variety 1.8T was given a turbo with a ~38mm inducer and a tiny turbine. This gave instant spool and near-zero-lag and it met their requirement for torque, driveability and fuel economy though it also choked peak power (but again, that's not what they were shooting for...)

      If you want more power you need more turbo. A "BT" for us is, in many cases, not far from the size of their stock turbos...

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      12-21-2010 09:44 AM #9
      Quote Originally Posted by mbaron View Post
      The WRXs that have a 2.0 liter motor still get a lot more power than the 1.8.
      I had one of those in my 01 RS, they start with 14.7psi, compared to my 04GLI running 11.6psi with 10% less displacement.

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      12-21-2010 10:02 AM #10
      Quote Originally Posted by Blackfin View Post
      A "BT" for us is, in many cases, not far from the size of their stock turbos...
      A buddy with an '05 WRX (2.5L) wagon made 270hp and >350tq to the wheels with his stock turbo, water meth, custom up-pipe w/ tial 38mm, 3in TBE, etc etc.

      So right there you can see the difference in the stock turbos and that was on ~19/20psi. We need a t3s60 to make that hp and the tq won't be that high.

      He wanted me to install a bigger turbo... So I did... He blew it up

      Here's the dyno chart:
      Last edited by mumbly0051; 12-21-2010 at 10:28 AM.
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    13. 12-21-2010 10:06 AM #11
      Quote Originally Posted by nelsongti View Post
      yeah guys im just wondering why 1.8t engines are not that powerful like srt4 or wrx, for example if you put a bigger intercooler on an srt4 it gets a lot of power, different from us that you have to chipped your car and even go big turbo to reach 300 hp
      That's why.
      Quote Originally Posted by antsrcool View Post
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    14. Member codergfx's Avatar
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      12-21-2010 10:52 AM #12
      Yea the engine was way undertuned to run longer. Would of been nice I'd they put a more bigger turbo on them from factory o well.
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      12-21-2010 10:57 AM #13
      Quote Originally Posted by Big_Tom View Post
      VW Wanted Us To Actually Hafta Build Our Cars To Be Fast.
      Love it!
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      I'm outta here... you guys are idiots. You can quote me on that and throw it in all of your sigs.

    16. Member Big_Tom's Avatar
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      12-21-2010 11:04 AM #14
      Quote Originally Posted by sledge0001 View Post
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    17. Junior Member
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      12-21-2010 11:54 AM #15
      even 1.8t big turbo gt28rs cant barely run with stock modded turbo srt4 or evolutions

    18. Member joe'sGTI's Avatar
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      12-21-2010 12:04 PM #16
      lets not forget that the 4g63 and whatever the wrx heads are called flow way more than our heads and come with less restrictive cams, have bigger turbos, and yes more displacement. Also remember that these cars are meant to be performance orientated. Whereas the 1.8t was put into many different cars the passat the jetta (GLi) the golf (GTi) then the audis seats and a buncha other things im forgetting. Our engine was just designed to be better overall.

      Now then. Its not totally without power. I would take a 1.8t over pretty much any NA 4.
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    19. Junior Member
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      12-21-2010 12:08 PM #17
      and also is so freaking expensive get one of this BT to gain only 70 hp more. perfect example . i have a friend who has an Acura integra which comes with a 1.8 liter engine ike ours. my friend wanted to go turbo and he finally bought a t3t4 kit from ebay for like 600 bucks and now he is making over 300 hp beating i dont know how many people. that makes me jealous

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      12-21-2010 12:12 PM #18
      Quote Originally Posted by codergfx View Post
      Would of been nice I'd they put a more bigger turbo on them from factory o well.
      thank you for the chuckle.

      this goes along with its older brother, "more better" LOL.

    21. 12-21-2010 12:15 PM #19
      Why is this a thread? Guess the OP cant look at engine specs online. But what is funny is that everytime motor trend compares all of these cars (GTI, Lancer Ralliart, WRX, Mazdaspeed3), the gti wins.

    22. Member Blackfin's Avatar
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      12-21-2010 12:42 PM #20
      Quote Originally Posted by cincyTT View Post
      Why is this a thread? Guess the OP cant look at engine specs online. But what is funny is that everytime motor trend compares all of these cars (GTI, Lancer Ralliart, WRX, Mazdaspeed3), the gti wins.
      The GTI usually wins on things like build quality, interior materials and workmanship, ride and so on. Its usually near the bottom in straight-line performance. A recent MT test involving a '10 GTI and those cars showed the GTI is slowest to 60, highest ET in the 1/4 etc. Despite that they chose it because it because "Engine is nowhere near the most potent but you really don't miss it," and "No torque steer, good midrange pull, nice engine note (particularly the sporty burp during upshifts). DSG works perfectly, and I love the paddles -- sized and placed just right" and "GTI comes across as the most mature of the group."

      We simply accept that the 1.8T and 2.0T are kinda pokey from the factory but acquit themselves well in many other areas.

      I simply wonder how much further ahead the GTI would be with a 265HP 2.0T and 4Motion from the factory. I suppose VAG couldn't deliver that without stepping on Audi toes and without raising the price to unobtainium levels but it would be interesting to see how much further ahead it'd be in these comparos with a more capable powertrain.

    23. 12-21-2010 12:48 PM #21
      The fit and finish is why people buy these cars over a Mitsu or Dodge. Plus there is always potential for more power to go with the nice interior and stylish exterior. You cant really make an Evo or SRT4 into a nice ride which is always there downfall.

      Adding more power and awd to a VW really wouldnt harm Audi. A more powerful 2.0T instead of the 3.2 or supercharded 3L would be perfect in a GTI/GLI. It would also keep the cost lower which is the same reason why they dropped a 2.0T into the A5 to make it more affordable.

    24. Member alextjoe's Avatar
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      12-21-2010 12:51 PM #22
      just do like me but a 2007 sti motor in my mk2 and be done with it..


      jokes be happy with what you got some ppl are riding camels to work!!!


    25. Member DMVDUB's Avatar
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      12-21-2010 12:57 PM #23
      Let's just make this simple 1.8t 's are not an out of the box performance engine and 98% of the cars they come in are economy cars (sporty feeling, but still economy) they are NOT sports cars, they don't handle like them and they weren't designed that way. Yes I have my VW project and it's fun, but even with the money I've spent on my Jetta it's a daily driver and will never be the same as my Porsche.
      The EVO, WRX etc. are purpose built cars.
      and so are 1.8t's
      just a whole different purpose.
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    26. Member
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      12-21-2010 02:53 PM #24
      They should just offer a high boost option out the factory. 18psi or so, maybe a new N75. People running around with chipped 1.8ts over 200k miles, I don't think it kills reliability so much.

      I think VW is more limited than most other companies in what they can push out of their engines. If they go too crazy, it makes the Vr6 look like a silly option to pay more for, or makes that audi that costs 10k more look a bit crazy too.

      What is the SRT4 competing with as far as cross platform engine? If you want more power out of a dodge, you go muscle car. No one's going to go "why buy the Challanger, when the SRT4 can have the same performance numbers easily?"

    27. 12-21-2010 03:02 PM #25
      i miss firevortex
      Quote Originally Posted by antsrcool View Post
      So my 2001 Wolfsburg caught fire last night
      2001 Wolfsburg w/K03s Drive fast and weave alot. NUKE THE WHALES!
      K&N drop-in | NS Boost-o-meter & pod | Homemade adjustable MAP clamp | [email protected] psi | SMIC vent mod | Energy Suspension 70A inserts | R32/TT LCA Bushings

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