Make a donation

Author Topic: Flat spot  (Read 12867 times)

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 #45 on: February 22, 2011, 12:19:59 am »

Offline Janner_Sy

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 62
  • -Receive: 113
  • Posts: 5392
Re: Flat spot
« Reply #46 on: February 22, 2011, 12:20:50 am »
had enough of you two ganging up on me

ill get a PDT map and then ill show you...

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 #47 on: February 22, 2011, 12:25:35 am »
So your not only getting a Homomobile your going to break it :chicken: :confused:
 





:evilgrin:

Offline Janner_Sy

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 62
  • -Receive: 113
  • Posts: 5392
Re: Flat spot
« Reply #48 on: February 22, 2011, 12:27:05 am »
break the sound barrier i reckon. 

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 #49 on: February 22, 2011, 12:27:35 am »
By blowing the engine :innocent:

Offline Janner_Sy

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 62
  • -Receive: 113
  • Posts: 5392
Re: Flat spot
« Reply #50 on: February 22, 2011, 12:33:38 am »
this thread started off so well :grin:

back on topic of huge figures theres a RR day @ RS tuning here in may http://www.mk5golfgti.co.uk/forum/index.php/topic,25611.msg332706.html#new

Even if they do read high its comparable against the other cars running (normally) :laugh:

Offline Russ_leeds

  • Won't Shut up.
  • *****
  • Thank You
  • -Given: 24
  • -Receive: 16
  • Posts: 526
Re: Flat spot
« Reply #51 on: February 22, 2011, 04:57:08 pm »
u lot are mad as the mad hatter :signLOL:
as i said ill gladly take it to rs tuning once i get the new dv fitted next month. i only wanted to know what might be causing the flat spot not be ripped to sh*t :sad1:
so whos going to rs in may?
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 Russ_leeds

  • Won't Shut up.
  • *****
  • Thank You
  • -Given: 24
  • -Receive: 16
  • Posts: 526
Re: Flat spot
« Reply #52 on: February 23, 2011, 03:27:09 pm »
ok so i have asked darren to do some logging of the car. which blocks in paticular should we be logging?
cheers Russ
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 bacillus

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 4
  • -Receive: 451
  • Posts: 6329
Re: Flat spot
« Reply #53 on: February 23, 2011, 04:33:38 pm »
ok so i have asked darren to do some logging of the car. which blocks in paticular should we be logging?
cheers Russ

I would do at minimum blocks 115 (boost actual/requested), 020 (CF on cylinders 1-4) and 106  (Fuel Rail Pressure)
Without traction power is nothing!

Offline Russ_leeds

  • Won't Shut up.
  • *****
  • Thank You
  • -Given: 24
  • -Receive: 16
  • Posts: 526
Re: Flat spot
« Reply #54 on: February 23, 2011, 04:41:43 pm »
cheers which blocks would show timing pull and is there anything else i should be aware of?
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 Janner_Sy

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 62
  • -Receive: 113
  • Posts: 5392
Re: Flat spot
« Reply #55 on: February 23, 2011, 07:10:10 pm »
I'd do the full logs on here  then you have a set of logs you can refer to in the future if you get any issues
#
http://www.goapr.com/support/datalogging.php

Offline bacillus

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 4
  • -Receive: 451
  • Posts: 6329
Re: Flat spot
« Reply #56 on: February 23, 2011, 07:37:07 pm »
cheers which blocks would show timing pull and is there anything else i should be aware of?

Block 020 will show timing pull.
Without traction power is nothing!

Offline Janner_Sy

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 62
  • -Receive: 113
  • Posts: 5392
Re: Flat spot
« Reply #57 on: February 23, 2011, 08:10:45 pm »
@PDt what rail pressure do you request with your maps @ stage 1?

Offline PDT

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 3
  • -Receive: 142
  • Posts: 2010
    • Email
Re: Flat spot
« Reply #58 on: February 23, 2011, 08:45:27 pm »
Rail pressure demand will vary as every car is mapped on its own merits, we dont have a generic stage 1 or 2 ready made setting. But typically 112-120 bar if no uprated fuel pump is fitted. We do request about .2 bar more boost than revo stage 1 when set to 9.

Power from car to car will vary, my own k03 gti made about 240ish stock on stage 1 equivalent and 263 stage 2 with intake and downpipe. Look at the variations in stage 2+ k04 for example, some struggle to see 350hp whilst others with the same supporting mods on the same dyno can achieve 380hp.

And stage 1 with 250+ bhp isnt rare, I have tested k03 cars with maps from plenty of tuners (mainly independant and not the big names) that make 250-260hp, just because the big names cant/dont push them this hard with their ready made maps it doesnt mean it cant be done. with a few hours of dyno tuning a custom map will often outperform the big brands.

The dyno at RStuning reads virtually identically to our new dyno ( we tested a car this week that made 178hp and 272ft/lb there and 181/275 on ours so would be a good comparison test. This is to be expected as nearly every dyno dynamics reads the same (except JKM who I see getting results far lower due to the way they run the cars, which incidentally different to every other dyno dynamics operator I have seen, but the method of strapping is a debate that will go on for ever. Most however stick to the reccomended method that dyno dynamics train you to use) and other than strapping there is no way to make a dyno dynamics dyno give a false reading that isnt clearly obvious on the dyno graph i.e altering the barometric pressures or intake temperatures in the dyno software.

Its easy for people to sit behind a computer and dissbelieve russ's figures but thats life, but until his logs are taken the cause of his problem since fitting the intake are unknown, but my guess is that he is getting fuel cuts.


 

     

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 #59 on: February 23, 2011, 08:59:30 pm »
Do DD train operators to allow the car to rise up on the roller?