Boost logging

[Big_daddy]

think i got boost leak where when i foot down i could here the turbo but the car not launching right. the bost gauge works but there is no pull when you ground the foot.

i got vag .com

any1 could tell me how to monitor the boost? what readins are normal?

(leon 1.8T 180bhp - vipper induction kit - exhaust system.)

 

[m0rk]

block 115 is the one you want

you want both the end columns to track each other closely

 

[Big_daddy]

what readings should i be expecting?

 

[gazjones]

there will be actual v requested, requested is what the ecu wants the turbo to deliver. if they are pretty close all is ok, you can log them then put them both into a graph and both lines should look the same if all is ok

 

[Funkyfin2000]

that apply the same for an ibiza...

what reading should u get for a standard 156bhp ibiza?

 

[acidstrato]

7/8psi which is 0.5bar vagcom will read around 1500mbar, but its not about how high it goes but over the whole range

 

[Funkyfin2000]

cheers dude...

so vag.com will read about 1500bar....

i always have a feeling that the car isn't that quick....will have to do some testing and see if i get about 1500 on that block....

 

[acidstrato]

to be fair fella, the standard ibiza isnt that quick

it feels like it at first (and it is in comparison to some) but a remap knocks it up a level

 

[Big_daddy]

7/8psi which is 0.5bar vagcom will read around 1500mbar, but its not about how high it goes but over the whole range

Yeh according to my boost gauge the max it show is 0.5bar, it standard leon 180bhp. is this normal reading?

 

[Big_daddy]

there will be actual v requested, requested is what the ecu wants the turbo to deliver. if they are pretty close all is ok, you can log them then put them both into a graph and both lines should look the same if all is ok

Hi when i logged the boost, 2nd gear, the 1st colum one showed a higher reading than the other colum. but as i went through the rev range, they wer equal but a 1 second gap. there were a few spikes on the 1st colum.
The car get stuck at 6000 rpm, it dosnt die out but stays there constant at 60mph, with my foot mounted to the ground.

 

[Bogwoppit]

The best way to do a log is find a clear stretch of private road, pull away slowly and short shift to 4th gear, start the log, then give the car full throttle from about 2000rpm to 6000rpm. (This will be over 100mph so find a long private road).

It is odd about the car staying at 6000rpm though.

 

[acidstrato]

Yeh according to my boost gauge the max it show is 0.5bar, it standard leon 180bhp. is this normal reading?

sounds bout right mate

 

[Big_daddy]

It is odd about the car staying at 6000rpm though.

I use have that problem before where the car use to jam up at 5000rpm.

the fault was fault lambda sesnor, replaced that with new maf meter as well. the car then use to go correctly but no feel with turbo running,

then open circuit come up for the N75 valve, replaced it a used n75.

the car then use drive nice and pick up with some wheel spin. with few popin from the exhaust as well.

then l8r in the week the car gone stop pulliing as it should, couldnt feel the turbo kickin at low rpms on when it hits 4000-5000rpm. Now the car some time jams when it hits 6000rpm