Make a donation

Author Topic: Flat spot  (Read 12866 times)

Offline Russ_leeds

  • Won't Shut up.
  • *****
  • Thank You
  • -Given: 24
  • -Receive: 16
  • Posts: 526
Re: Flat spot
« Reply #15 on: February 21, 2011, 09:08:00 pm »
i cant find the topic :ashamed: it was called something along those lines
Black 2007 gti, 18' monza 2, sat-nav, highline, i-pod dock, armrest, 35mm H&R springs, WALK, BCS tbe, autotech front and rear arbs, ITG maxogen, NQSBBK... and more to come

Offline vRS Carl

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 282
  • -Receive: 240
  • Posts: 3088
  • I'm the F.A.G (Forum Apple Guru)
Re: Flat spot
« Reply #16 on: February 21, 2011, 09:10:07 pm »

Offline Russ_leeds

  • Won't Shut up.
  • *****
  • Thank You
  • -Given: 24
  • -Receive: 16
  • Posts: 526
Re: Flat spot
« Reply #17 on: February 21, 2011, 09:12:57 pm »
 :happy2: :booty:
hahaha dunno where i went wrong  :signLOL: cheers mate. anyone live in leeds with vcds?
Black 2007 gti, 18' monza 2, sat-nav, highline, i-pod dock, armrest, 35mm H&R springs, WALK, BCS tbe, autotech front and rear arbs, ITG maxogen, NQSBBK... and more to come

Offline vRS Carl

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 282
  • -Receive: 240
  • Posts: 3088
  • I'm the F.A.G (Forum Apple Guru)
Re: Flat spot
« Reply #18 on: February 21, 2011, 09:18:49 pm »
Was easy.

Click search, Type - Power from Stage 1, Click search

Was second result that came up  :innocent:

Have a look at the VCDS register there are a couple of members near by. I think Darren (MortyGTTDi) is nearby. :happy2:

Offline PDT

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 3
  • -Receive: 142
  • Posts: 2010
    • Email
Re: Flat spot
« Reply #19 on: February 21, 2011, 09:29:53 pm »
Hi Russ,

Usually the addition of an intake wont need any extra changes to the map, however theory is one thing, reality is another. Some logging should show up the cause of the flatspot but my guess is that you have hit the limit of the fuel pump and you are experiencing a slight lack of fuel which will cause the ECU to hold back the ignition advance and boost.

After sales support is free so call us for a chat if you wish, we can do some datalogging (free) and find the cause but there may be someone closer that has a vagcom lead and you can send me the logs to take a look at.

Dave@PDT

Offline Russ_leeds

  • Won't Shut up.
  • *****
  • Thank You
  • -Given: 24
  • -Receive: 16
  • Posts: 526
Re: Flat spot
« Reply #20 on: February 21, 2011, 09:39:53 pm »
cheers. yeah i sent darren a pm but dont know if he's seen it yet.
@dave
cheers if i cant get it scanned ill try get up at some point
Black 2007 gti, 18' monza 2, sat-nav, highline, i-pod dock, armrest, 35mm H&R springs, WALK, BCS tbe, autotech front and rear arbs, ITG maxogen, NQSBBK... and more to come

Offline chungster

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 6
  • -Receive: 33
  • Posts: 1963
Re: Flat spot
« Reply #21 on: February 21, 2011, 09:48:43 pm »
perhaps he's hitting the dreaded fuel cut...now with extra air/great dose of boost to achieve those mega numbers...the fuel pump can't keep up!!!!!


Offline Hedge

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 484
  • -Receive: 304
  • Posts: 6621
Re: Flat spot
« Reply #22 on: February 21, 2011, 09:56:39 pm »
perhaps he's hitting the dreaded fuel cut...now with extra air/great dose of boost to achieve those mega numbers...the fuel pump can't keep up!!!!!


That was my guess as well.  :happy2:

Offline Janner_Sy

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 62
  • -Receive: 113
  • Posts: 5392
Re: Flat spot
« Reply #23 on: February 21, 2011, 11:04:31 pm »
perhaps he's hitting the dreaded fuel cut...now with extra air/great dose of boost to achieve those mega numbers...the fuel pump can't keep up!!!!!
That was my guess as well.  :happy2:

Fair point, and would definitely be valid for stage 2, but on a stage 1!  Ive not heard of fuel cut on a stage 1 map before.  Surely not a good trait.  @ PDT What rail pressure do you request on your stage 1, is it the full 130bar?  Ive had 2 different brands of stage 1, Shark, and Bluefin, and seen the logs for stage 1 APR and Jabba tuned cars.  They request around 110-120bar max giving plenty off leeway in the standard pump and injectors

i know the figures are high i was doubtfull at first but my mate has a megane sport 225 stage 2 @ 274bhp and 335ftlb and theres absolutely nothing in them neck and neck. search for a topic by pdt calles 'how much power from stage 1 k03 more than you may think'. this thread has graphs of the first car which actually got a couple more bhp than me i think. my car was the second to be done with this map

What i see in that thread is good publicity.  Im just abit perplexed at how all of sudden you can gain 20+hp over the leading tuners such as REVO, APR, GIAC etc.  I mean thats a huge improvement on what are already classed as the top end maps that out perform pretty much all the other maps.

Personally i dont buy it, until i see the results replicated on an independent DD rolling road, i will of course retract all the above if im proven wrong though.  However i suspect a sudden loss of Hp.  Thats not a bad thing though, that would just pull it back in line with the expected gains

Offline vRS Carl

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 282
  • -Receive: 240
  • Posts: 3088
  • I'm the F.A.G (Forum Apple Guru)
Re: Flat spot
« Reply #24 on: February 21, 2011, 11:36:39 pm »
Could be PDT's inability with VCDS and he has ticked a magic box somewhere by accident Or maybe his straps are made of Bungee cord  :grin:

Offline Janner_Sy

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 62
  • -Receive: 113
  • Posts: 5392
Re: Flat spot
« Reply #25 on: February 21, 2011, 11:40:53 pm »
loose strapping is awesome for bragging rights, we all know that


Offline Russ_leeds

  • Won't Shut up.
  • *****
  • Thank You
  • -Given: 24
  • -Receive: 16
  • Posts: 526
Re: Flat spot
« Reply #26 on: February 21, 2011, 11:42:55 pm »
 :signLOL: the car was strapped down properly i can assure you. once i get the new dv fitted i might take it to rs tuning for a second dd opinion
Black 2007 gti, 18' monza 2, sat-nav, highline, i-pod dock, armrest, 35mm H&R springs, WALK, BCS tbe, autotech front and rear arbs, ITG maxogen, NQSBBK... and more to come

Offline vRS Carl

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 282
  • -Receive: 240
  • Posts: 3088
  • I'm the F.A.G (Forum Apple Guru)
Re: Flat spot
« Reply #27 on: February 21, 2011, 11:45:54 pm »
Did he have "Land of Make Believe" playing in the background whilst doing the dyno runs :laugh:

Offline Top Cat

  • Top cat
  • Just look at my post count
  • ******
  • Thank You
  • -Given: 171
  • -Receive: 335
  • Posts: 8196
  • Almost Jacamo
Re: Flat spot
« Reply #28 on: February 21, 2011, 11:47:18 pm »
:signLOL: the car was strapped down properly i can assure you. once i get the new dv fitted i might take it to rs tuning for a second dd opinion

The only way your going to get a decent comparison, would be to have another KO 3 on the rollers straight after you.  I got 259 at RS tuning at stage 2 then went on PDT's at 2+ and got 249. if my calculation's are correct you should get 480BHP at RS.  :laugh:

Offline vRS Carl

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 282
  • -Receive: 240
  • Posts: 3088
  • I'm the F.A.G (Forum Apple Guru)
Re: Flat spot
« Reply #29 on: February 21, 2011, 11:49:20 pm »
I reckon PDT should organise a RR day if we all get an extra 20bhp :grin: :grin: