Author Topic: Rolling Road Results - data runs on Pg2  (Read 5524 times)

Offline Rhyso

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Rolling Road Results - data runs on Pg2
« on: 05 October 2008, 20:46 »
Right after hi-jacking Dai's thread i've split it down





above is the plot of my power run and the one below is a plot of the car before the map

what i'm after is ideas and suggestions as why i'm not pulling peak torque until higher in the rev range

going to do some data logging later on but please throw forward ideas  :smiley:

« Last Edit: 07 October 2008, 19:07 by Rhyso »

Offline dai-cymru

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« Reply #1 on: 05 October 2008, 20:50 »
nights my friend so will have to be weekend  :sad: why are you data logging?

Offline Rhyso

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« Reply #2 on: 05 October 2008, 20:51 »
nights my friend so will have to be weekend  :sad: why are you data logging?

missing power between 1800 and 2600rpm - have a look here to see my graph

http://www.golfgtiforum.co.uk/index.php?topic=39185.230

Offline dai-cymru

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« Reply #3 on: 05 October 2008, 20:56 »
nights my friend so will have to be weekend  :sad: why are you data logging?

missing power between 1800 and 2600rpm - have a look here to see my graph

http://www.golfgtiforum.co.uk/index.php?topic=39185.230

your not missing power to me looks like it's topping out and levveling off. diesels have more low down torque so i think thats right, try ask nick from rtec

Offline Rhyso

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« Reply #4 on: 05 October 2008, 20:59 »
nights my friend so will have to be weekend  :sad: why are you data logging?

missing power between 1800 and 2600rpm - have a look here to see my graph

http://www.golfgtiforum.co.uk/index.php?topic=39185.230

your not missing power to me looks like it's topping out and levveling off. diesels have more low down torque so i think thats right, try ask nick from rtec

i did and he said its got a flat spot  :sad:  apparently all the remap company have done have taken the VW map (complete with flat spot) and just upped the power - gives great results but doen't get rid of any underlying problems

need to determine if its something causing it or there is possibly a problem with the map  :undecided:

Offline dai-cymru

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« Reply #5 on: 05 October 2008, 21:04 »
could be anything, fuel pump injectors air filter, plugs anything really, does it feel flat when driving

Offline Rhyso

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« Reply #6 on: 05 October 2008, 21:08 »
could be anything, fuel pump injectors air filter, plugs anything really, does it feel flat when driving

not really but it probably explains why i seem to get a second surge at 2600rpm onwards  :undecided:

its more noticeable in 4th, 5th and 6th

Offline dai-cymru

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« Reply #7 on: 06 October 2008, 12:30 »
could be anything, fuel pump injectors air filter, plugs anything really, does it feel flat when driving

not really but it probably explains why i seem to get a second surge at 2600rpm onwards  :undecided:

its more noticeable in 4th, 5th and 6th

if you cant really feel it dont worry about it

Offline Rhyso

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« Reply #8 on: 06 October 2008, 12:33 »
could be anything, fuel pump injectors air filter, plugs anything really, does it feel flat when driving

not really but it probably explains why i seem to get a second surge at 2600rpm onwards  :undecided:

its more noticeable in 4th, 5th and 6th

if you cant really feel it dont worry about it

i can though  :sad: did a few test runs down to work this morning - you can feel it lag and then pull hard again

Offline dai-cymru

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« Reply #9 on: 06 October 2008, 12:34 »
is it turbo lag you can feel?