Author Topic: ko4 turbo upgrade  (Read 4797 times)

Offline Starry

  • GTI forum regular
  • ***
  • Posts: 179
  • http://planetweed.co.uk
ko4 turbo upgrade
« on: 10 February 2004, 16:32 »
i am looking to upgrade my 150bhp golf. i have already added a miltek/revo/baily dv/kn filter. but i need more and im thinking in the way of a turbo/manifold upgrade to possably k04 and a TT manifold. has any one done this and is it worth the wonga (about ?900 with my mates distount) if this is not the best route then what is.
Cheers Starry......
1.8T 200bhp/237lbft.r32 F/BUMPER/ MILLTEK TURBO BACK,WITH HI-FLOW CAT/REVO/BAILY DV30/FRONT MOUNT I/C

Offline topher

  • Administrator
  • Serious forum addict
  • *****
  • Posts: 9,594
  • fully functioning
Re:ko4 turbo upgrade
« Reply #1 on: 10 February 2004, 19:47 »
have a look on http://www.sportcompactracing.com/vbulletin/forumdisplay.php?s=&forumid=93 some of the guys there have it done.

Offline Starry

  • GTI forum regular
  • ***
  • Posts: 179
  • http://planetweed.co.uk
Re:ko4 turbo upgrade
« Reply #2 on: 12 February 2004, 18:00 »
is the k04 any good as an upgrade every one i speak to says something diffrent. and is it or is it not a straight fowered bolt on and chip???? help i need more power i cant take it any longer.... >:(
1.8T 200bhp/237lbft.r32 F/BUMPER/ MILLTEK TURBO BACK,WITH HI-FLOW CAT/REVO/BAILY DV30/FRONT MOUNT I/C

Offline topher

  • Administrator
  • Serious forum addict
  • *****
  • Posts: 9,594
  • fully functioning
Re:ko4 turbo upgrade
« Reply #3 on: 12 February 2004, 18:32 »
if the turbo is from a TT then you'll need  a downpipe aswell as the manifold, and ofcourse chipped to suit, or you wont see much of a gain. Other k04's bolt straight on, can't say for sure which ones are which, but again its not a huge power increase. Full kits like the APR stage III for about 4 grand will kick you up to around 300bhp and a stupidly large amount of torque, but you'll need a limited slip diff on top of that to handle the extra power.

Offline number_six

  • Not said much yet
  • **
  • Posts: 49
Re:ko4 turbo upgrade
« Reply #4 on: 12 February 2004, 21:37 »
Have a look at the link below:

http://forums.vwvortex.com/zeroforum?id=27

Like the camp Spiderman dancing gif

Offline Ryan_s3

  • GTI forum regular
  • ***
  • Posts: 100
Re:ko4 turbo upgrade
« Reply #5 on: 20 February 2004, 14:36 »
the k04 turbo is also in the audi s3,apparently it can be a fairly weak turbo when stressed.But it can "safely" produced enough air for 230-240bhp.Remember that the audi tt 225 and s3 have forged mahle pistons and uprated rods,crank etc so can withstand high psi and larger injectors.A standard s3 can produce 210 at 1 bar or 225 at 1.1bar.I would suspect that you don't won't to go above 1 bar on a standard gti engine ,hopefully producing 200bhp.Also check your injector size,think there 317cc,so good for around 210bhp.regards Ryan

Offline Starry

  • GTI forum regular
  • ***
  • Posts: 179
  • http://planetweed.co.uk
Re:ko4 turbo upgrade
« Reply #6 on: 20 February 2004, 15:27 »
Thanks ryan for the info. how did you get your pics to show up ive done what it says to do but it wont work. if you click on the link uder this posting you can see my car but it just wont come up on its own...
p.s. v nice ride you have there, im saving my penny's for one.....
1.8T 200bhp/237lbft.r32 F/BUMPER/ MILLTEK TURBO BACK,WITH HI-FLOW CAT/REVO/BAILY DV30/FRONT MOUNT I/C

Offline jv

  • Administrator
  • Serious forum addict
  • *****
  • Posts: 7,216
Re:ko4 turbo upgrade
« Reply #7 on: 20 February 2004, 15:32 »
you need to link to the picture itself not the page. they are a bit big those pics but i can change your profile to demonstrate... hold on...
Buy site stuff!
GolfGTI.co.uk - merchandise

Support the forum charity!
Forum Charity

Offline jv

  • Administrator
  • Serious forum addict
  • *****
  • Posts: 7,216
Re:ko4 turbo upgrade
« Reply #8 on: 20 February 2004, 15:36 »
done :) worth making the image a bit smaller some time. otherwise it takes up a lot of the screen 8)
Buy site stuff!
GolfGTI.co.uk - merchandise

Support the forum charity!
Forum Charity

Offline Ryan_s3

  • GTI forum regular
  • ***
  • Posts: 100
Re:ko4 turbo upgrade
« Reply #9 on: 20 February 2004, 19:10 »
no problem mate,like your alloys,rstt's wouldn't mind some of them for mine,ryan :D