Rolling Road Results - data runs on Pg2

[Rhyso]

is it turbo lag you can feel?

not sure how to describe it - i can hear the turbo spooling up

the car pulls, just not really hard and then it hits 2500rpm and really goes!

you'd need to drive it to see what i mean but it feels a bit like yours - slow and then she'll suddenly pick up

[dai-cymru]

is it turbo lag you can feel?

not sure how to describe it - i can hear the turbo spooling up

the car pulls, just not really hard and then it hits 2500rpm and really goes!

you'd need to drive it to see what i mean but it feels a bit like yours - slow and then she'll suddenly pick up

could be the map did you get that 2nd ecu? i know on petrol turbos lag can be caused by igintion timing but wont really count on a derv 

[Rhyso]

could be the map did you get that 2nd ecu? i know on petrol turbos lag can be caused by igintion timing but wont really count on a derv 

still trying to source one - there's a few golfs being broken on Ebay so hoping they'll sell me the ECU

got to elminate the MAF and N75 valve first but i'll also try a 2nd map  purely for scientific purposes of course lol

going to split this thread as i've kind of properly hi-jacked it lol

[Rhyso]

bumpty bump 

[RTechUK]

bumpty bump 

Did you give me you ECU number?  send me it again if you can.  you can use VAGcom to get it, click on engine the there will be a VAG numer in the top left of the box.

Nick

[Rhyso]

bumpty bump 

Did you give me you ECU number?  send me it again if you can.  you can use VAGcom to get it, click on engine the there will be a VAG numer in the top left of the box.

Nick

Number i pulled off this morning is 038 906 019 FG - make any sense to you?

[Rhyso]

righto

managed to do a little bit of data logging this morning - not ideal conditions mind - doing full throttle runs in 3rd and 4th gear in the wet is intersting to say the least lol

i logged the MAF and the intake pressure - brief look at it shows that i'm pulling the requested numbers 

Data below shows full throttle in 3rd gear

Engine speed   MAF (specified)   MAF (actual)   Spec. intake press.   Actual intake press.
790-870                      230-310   210-350                      2200-2400                     2100-2600
 /min                        mg/str    mg/str                          mbar   

903                        255     240.1                    1050.6                      971.1
903                        255     249.9                    1050.6                      971.1
1029                        250     254.8                    1111.8                      971.1
1470                        615     524.3                    1611.6                    1193.4
1722                        610     739.9                      1530                                 1708.2
1932                        425     558.6                    1244.4                    1298.7
1995                        420      289.1                       1530                    1158.3
2163                        540      646.8                    1540.2                    1708.2
2016                        250     548.8                      999.6                    1181.7
1470                        625     563.5                     1795.2                    1322.1
1617                        805      779.1                        1734                    1790.1
1848                        850   1107.4                    2437.8                    2644.2
2247                        850   1171.1                    2458.2                    2433.6
2625                        850   1249.5                    2458.2                    2562.3
3003                        850   1156.4                    2458.2                    2468.7
3339                        850   1141.7                    2458.2                    2480.4
3654                        850   1107.4                    2458.2                    2433.6
3906                        850   1058.4                    2437.8                    2386.8
4116                        850   1024.1                    1081.2                    1860.3

Slight concern is the line i've highlighted - a drop in boost and MAF figures and then she gets going again

heres another 3rd gear full throttle run

   1533   355   352.8   1224   1123.2
   1554   285   279.3   1224   1064.7
   1554   310   313.6   1213.8   1064.7
   1533   305   303.8   1203.6   1064.7
   1533   305   303.8   1203.6   1064.7
1554   540   382.2   2172.6   1158.3
             1680   850   872.2   2366.4   2141.1
   2037   850   1004.5   2458.2   2492.1
   2457   850   1249.5   2458.2   2574
   2856   850   1166.2   2458.2   2480.4
   3213   850   1127   2458.2   2492.1
   3549   850   1087.8   2458.2   2445.3
   3843   850   1053.5   2315.4   2410.2
   3129   315   588   1030.2   1333.8
   2646   260   519.4   1020   1170

seems to happen at around the same point 

[dai-cymru]

big drop there then mr rhys mmmmmmmmmm 

[Rhyso]

big drop there then mr rhys mmmmmmmmmm 

yeah thats what worries me 

after that though its all gravy

[ben1.8T]

That is quite a drop mate.  Im sure Nick will have an idea when his on here.