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    VWVortex


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    Thread: My new set-up... 298* 8v hydro

    1. 01-30-2011 12:39 PM #1
      decided to step up from a 288* to a 298*.

      switched from a mk3 shell to a mk2.

      goodies :

      - 298* TT hydro cam
      - +2mm intake/exhaust valves
      - decked 60 thou
      - port and polished
      - mk4 exhaust mani + TT race downpipe
      - eurospec adjustable cam gear
      - new gaskets and seals pretty much everywheres
      - custom made short runner


      video of the first start up stoked !


    2. Member B4S's Avatar
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      01-30-2011 02:25 PM #2
      Sounds pretty lumpy, cool .
      Negative scene points

    3. Member VWn00b's Avatar
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      01-30-2011 10:15 PM #3
      I call BS.

      This guy swapped a Harley into his Mk2. Why do you think the video is so dark?

    4. Moderator root beer's Avatar
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      01-30-2011 10:37 PM #4
      I'm sold. I want one.

    5. 01-31-2011 10:56 AM #5
      haha no harley here

      ill post a vid of it rolling when the snow is gone

    6. Member eurotrashrabbit's Avatar
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      02-10-2011 12:10 AM #6
      My 298 still wont quite make it to 11 like spinal taps amps

    7. Member wantacad's Avatar
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      02-11-2011 10:48 PM #7
      Love it...
      Quote Originally Posted by WackyWabbitRacer View Post
      You're new here but don't be a DORK.....
      Cheers, WWR.
      Quote Originally Posted by rte7x9 View Post
      Don't swap if you can't weld or fabricate. It's not a trivial task just to bolt everything up. There's a lot of nut-scratching involved. Take your time and do it right.

    8. 02-15-2011 08:31 PM #8
      What did you use for valve springs?

    9. Member
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      02-15-2011 11:19 PM #9
      sounds like a freeking top fueler

      popular with the neighbors?

      awesome

      what is your fuel system? ITBs?

    10. 02-16-2011 12:49 PM #10
      i'm using HD valve springs that i ordered off USRT.

      haha thanks, yeah the neighbours are used to it by now !

      using stock fuel system, with a chip burnt by TT for the cam

    11. Senior Member PowerDubs's Avatar
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      02-16-2011 08:45 PM #11
      Makes me want a bean burrito
      -Josh
      06 Phaeton 4-seater 6.0 W12 | 04 VW R32 | 03 Gti 24v VR6 | 00 M Roadster | 12 Kia Soul 1.6 stick
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    12. 06-03-2011 09:36 AM #12
      Just brought the car for its first rip. Big difference from the TT288*.

      Screams up top, 8000rpm rev limiter and it still makes power

    13. Moderator root beer's Avatar
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      06-03-2011 11:08 AM #13
      I've got a similar build coming. Any performance numbers?

    14. 06-03-2011 07:55 PM #14
      No numbers yet, probably later in the summer.

      i will take a video of a quick pull tomorrow

    15. Geriatric Member need_a_VR6's Avatar
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      06-04-2011 12:26 AM #15
      I tuned a car that had the 288 and then the 296. I was very impressed. Smoother idle, big mids and a ton more top end.
      -Paul
      1995 GTI VR6 - Retired - 12.90@106 R32 power - 12.833@106 12v power
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    16. 06-05-2011 01:50 PM #16
      yeah big difference from the 288*. Really impressed !

      got a quick question:

      I installed brand new lifters with the 298* but im still getting a lifter tick, so did the 288* with the new lifters. Would this be caused by the cam being big or bad oil pressure?

    17. Moderator root beer's Avatar
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      06-05-2011 06:23 PM #17
      Man, sometimes they just freakin tick. My gti motor's really ticky, all new stuff, all good machining. Whatever, no weird wear, nothing dumb. Let 'er eat.

    18. Senior Member skidplate's Avatar
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      06-05-2011 08:15 PM #18
      My buddy has the same cam in his cabrio. It sounds so good.. haha. I haven't had the opportunity to ride in it yet since he lives 3 hours north of me.
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    19. Geriatric Member need_a_VR6's Avatar
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      06-06-2011 04:08 PM #19
      I've noticed that the 'lightweight' ones are very loud.
      -Paul
      1995 GTI VR6 - Retired - 12.90@106 R32 power - 12.833@106 12v power
      KPTuned - Official MegaSquirt: Sales - Repair - Installation - Tuning
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    20. 06-13-2011 09:25 PM #20
      do you have any supporting bottom end work, i have a pretty similar build going on USRT LRI, 288, LW USRT lifters, dual ti springs, all the fun stuff but im not sold on where to set limiter at????? some say 7000, some say none ha.
      Any input for a fellow loby 8v
      Ny fam above is^^^ working my head right now actually...
      Quote Originally Posted by Everyone on Vortex
      If only you were closer I would totally buy this!!!
      A.K.A. I dont have the money

    21. Member woodrowstar's Avatar
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      06-14-2011 07:42 PM #21
      This sounds half-arsed. What does this car do?

    22. 06-20-2011 11:13 PM #22
      Bottom end is completely stock. (for now)

      i used to have the 288* and i had my chip burnt at 7500.

      with the 298* i have it at 8000 rpm.

      The 298* pulls hard till cut-out, my tach only reads 7k but it buries it pretty good !

    23. 06-21-2011 06:41 PM #23
      very nice, thanks for the info
      Quote Originally Posted by Everyone on Vortex
      If only you were closer I would totally buy this!!!
      A.K.A. I dont have the money

    24. 06-23-2011 09:06 PM #24
      One more Q
      What did you set your idle at for 288 and 298 if any different??
      Quote Originally Posted by Everyone on Vortex
      If only you were closer I would totally buy this!!!
      A.K.A. I dont have the money

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      07-01-2011 10:46 PM #25
      Mmm I need that cam. Any guesses on how much power you're making?

    26. Member Muzzicman75's Avatar
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      07-05-2011 12:50 PM #26
      Love the sound I may have missed it, but is this a obd1 or obd2 setup?

    27. 07-13-2011 10:57 AM #27
      idle for 288 and 298 were both around ~1000rpm.

      im figuring 145whp ?

      and this is obd1 !

    28. Member greyhare's Avatar
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      07-19-2011 07:53 PM #28
      I would not go over 7000 rpm on stock rod bolts. ARP bolts and go for broke.

    29. Member mkiii2.0jetta's Avatar
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      07-20-2011 01:30 AM #29
      That sounds hilarious, v twin POWA! Bet it screams up top

    30. Member Cushy's Avatar
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      09-05-2011 03:49 PM #30
      How is the 298 improved from the 288 besides the obvious of more power? Hows driveability between the two?
      Quote Originally Posted by SVT2888 View Post
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      Rip the ebrake. Neutral. Get bitches
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    31. Member masterqaz's Avatar
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      09-06-2011 06:51 PM #31
      making pop corn love it, it reminds me of my buddys old 1.3l mk2 swift, lumpy idle and 10k limiter(sounded like a race bike) Thanks alot now i wanna build a na car with big cams.
      Coming soon 4dr pd golf on air dipped blue with hitch racks and skid. Real work horse
      Automatic cause shifting short ratio sucks

    32. Member Jettaboy1884's Avatar
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      09-07-2011 02:49 PM #32
      I'm surprised the hydro lifters are holding up (assuming they are).

      I ran a TT 288 a few years ago & spun it up to 7200 on a regular basis (HD springs). When I pulled the cam and lifters out one day, about half of the lifters dumped their guts (spring and button)...

      I'd be interested in seeing dyno plots for both cams back to back. On a mildly modified motor, sometimes bigger isn't always better. Do you have ITB's planned for the future?

    33. 09-07-2011 07:14 PM #33
      I'd like to see the Intake Valve Closing ABDC spec for these cams.

      I'd like to compare the values to other cams and some dyno plots. Plus you need this value to calculate the dynamic compression ratio. http://www.wallaceracing.com/dynamic-cr.php

      Added some more info about intake charge that should be taken into account when selecting cams.
      http://www.scientificrabbit.com/node/14

      cheers
      ny_fam
      Last edited by ny_fam; 09-07-2011 at 07:55 PM.

    34. 09-08-2011 09:45 AM #34
      not sure about itb's.. not sure if i want to dump more money in this or get some boost?

      lifters do make alot of noise, but they always did even with the 288. and they are brand new.

      i bring it past 7k, cluster stops at 7k but the needle doesnt .

      might do a dyno run before the season is over.

      refreshing the bottom end this winter. any recommendations ? the head is already decked 60thou

    35. Moderator root beer's Avatar
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      09-11-2011 01:10 AM #35
      I'd love to see a dyno.

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