Got a vag com cable a while back and just got round to taking some logs.

First test of air flow seems to be a bit low to me.

Its a superchipped vrs. standard apart from the DV.

rpm air flow

2640 7.19

2640 28.81

2760 63.31

3040 82.14

3440 88.47

3720 94

4040 100.72

4320 109.11

4600 114.14

4880 123.97

5160 131.86

5440 141.78

5640 144.14

5840 144.36

6080 145.81

what does everyone think ?

It's low. I reckon that's about standard. A good rule of thumb on cars running a standard size MAF is BHP = peak MAF reading / 0.8 so in your case about 181bhp.

with it superchipped it should be nearer 200bhp. if it is superchipped as per the previous owner claimed.....

think its worth getting a new MAF ?

Have you logged the boost?

Also try running with the MAF unplugged, if it's faster then it's probably the MAF. You can try cleaning it before buying a new one though.

not yet. i think i tried logging block 115 but the shareware version on vagcom doesnt allow it.

okay i will try quickly running it without the MAF attached.

okay got a log of 115 with a full version

RPM requested actual g/s

1640 1080 1040 30.5

1880 1020 1270 23.72

1360 1310 1110 25.11

1600 1710 1250 31.08

1800 1840 1370 41.58

2120 1930 1570 60.44

2440 1930 1880 69.03

2800 1910 1920 83.17

3240 1860 1890 91.67

3600 1840 1830 96.67

3920 1880 1840 103.72

4200 1890 1880 111.69

4520 1890 1880 119.75

4800 1890 1860 125.36

5040 1900 1850 132.78

5320 1920 1880 140.39

5560 1930 1940 144.64

5760 1880 1870 146.31

Not much more than standard boost. You're peaking around 0.9bar, standard is 0.8bar.

Humm makes sense. Looks like someone might have been telling porkies about the superchip. Oh well looks like a trip to revo is on the cards.

Can i ask how you did that loggin on VAG-COM.

Ta

If you startup the software - vag-com. Basis settings. -> engine - > log blocks i think ->

block 115 for boost. 001, 003 and 005 are also good. Click start logging and its saved into a csv file.

send me a pm if you need a hand.

Humm makes sense. Looks like someone might have been telling porkies about the superchip. Oh well looks like a trip to revo is on the cards.

It may well be superchipped but they don't exactly have the best rep when it comes to 1.8T tuning. I think they actually only quote power as being raised to 195bhp.

Hi,

When you calculate peak gs divided 0.8 is this whp or bhp?

Is the formula of peak gs divided by 0.8 applicable if:

- Testing was done with A/C on

- Ignition has been advanced by some piggy back or diode

Thanks,

-P.

Hi,

When you calculate peak gs divided 0.8 is this whp or bhp?

Is the formula of peak gs divided by 0.8 applicable if:

- Testing was done with A/C on

- Ignition has been advanced by some piggy back or diode

Thanks,

-P.

BHP.

A/C on or off doesn't matter.

It's very approximate and won't take timing into account.

Okay!

My peak gs for one drag in second gear with A/C was around 90. That works out to roughly around 113 bhp. My car itself is rated @ 115bhp and I have Triphase, K&N, OWS, and Catback in addition to this. So was just wondering.....

Thanks,

-P.

Okay!

My peak gs for one drag in second gear with A/C was around 90. That works out to roughly around 113 bhp. My car itself is rated @ 115bhp and I have Triphase, K&N, OWS, and Catback in addition to this. So was just wondering.....

Thanks,

-P.

As I say it's only approximate so I wouldn't worry. You may get a slightly higher peak value in a higher gear though. 2nd is over a bit too fast to be accurate as you won't get many readings.