Make a donation

Author Topic: Decat to standard system?  (Read 2521 times)

Offline seanieb

  • Taking part
  • ***
  • Thank You
  • -Given: 2
  • -Receive: 0
  • Posts: 35
    • Email
Decat to standard system?
« on: October 23, 2017, 08:50:18 pm »
Is a full system really needed or would just the highflow downpipe fitted to standard system get the same results after remap?

Offline rich83

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 165
  • -Receive: 802
  • Posts: 13444
    • MK5 Golf GTI
  • My Ride: https://www.mk5golfgti.co.uk/forum/index.php?PHPSESSID=hfo6jc9j2s8064lfd2ofjepr4r&/topic,19740.0.html
Re: Decat to standard system?
« Reply #1 on: October 23, 2017, 09:26:35 pm »
It depends on what results you are after.

Offline seanieb

  • Taking part
  • ***
  • Thank You
  • -Given: 2
  • -Receive: 0
  • Posts: 35
    • Email
Re: Decat to standard system?
« Reply #2 on: October 24, 2017, 06:32:03 am »
I know standard stage 1s tend to make around 240-250hp so would a downpipe and cai make 15-20 more?

Offline rich83

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 165
  • -Receive: 802
  • Posts: 13444
    • MK5 Golf GTI
  • My Ride: https://www.mk5golfgti.co.uk/forum/index.php?PHPSESSID=hfo6jc9j2s8064lfd2ofjepr4r&/topic,19740.0.html
Re: Decat to standard system?
« Reply #3 on: October 24, 2017, 07:31:54 am »
It has the potential too but you’ll run out of fuel between 250-260 so you would probably need an upgraded fuel pump (and upgraded intercooler and intake) if 270bhp is your target

Offline Paradox1

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 41
  • -Receive: 82
  • Posts: 1038
    • Email
Re: Decat to standard system?
« Reply #4 on: October 24, 2017, 10:08:11 am »
It has the potential too but you’ll run out of fuel between 250-260 so you would probably need an upgraded fuel pump (and upgraded intercooler and intake) if 270bhp is your target

off topic, what calipers are those in your sig?

Offline rich83

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 165
  • -Receive: 802
  • Posts: 13444
    • MK5 Golf GTI
  • My Ride: https://www.mk5golfgti.co.uk/forum/index.php?PHPSESSID=hfo6jc9j2s8064lfd2ofjepr4r&/topic,19740.0.html
Re: Decat to standard system?
« Reply #5 on: October 25, 2017, 01:29:44 pm »
DB9. Same as TTRS

Offline AJP

  • Global Moderator
  • Just look at my post count
  • *
  • Thank You
  • -Given: 392
  • -Receive: 316
  • Posts: 3212
Re: Decat to standard system?
« Reply #6 on: October 25, 2017, 03:29:09 pm »
It has the potential too but you’ll run out of fuel between 250-260 so you would probably need an upgraded fuel pump (and upgraded intercooler and intake) if 270bhp is your target
X2

Mine made 270 on the R-Tech rollers, just with a full BCS exhaust and Pipercross panel filter. But it put the standard fuel pump right on the limit - fuel cuts were just round the corner. Loba pump sorted that and also made it a much nicer car in terms of power delivery.

Bottom line - if you want a strong and reliable 270bhp from a k03 TFSI, get an uprated pump.

Offline pudding

  • Global Moderator
  • Just look at my post count
  • *
  • Thank You
  • -Given: 2
  • -Receive: 690
  • Posts: 8353
Re: Decat to standard system?
« Reply #7 on: October 25, 2017, 03:47:00 pm »
Same applies to the K04 engines.  The crazy midrange torque the TFSI engines are capable of is only possible with an uprated HPFP.   



2007 ED30 | 2009 TDI 140 | 2016 BMW 330D